cosmetics attack, part II: Remove all tabs and prettyprint/reindent the code.
authorDiego Biurrun <diego@biurrun.de>
Sun, 29 Apr 2007 13:39:27 +0000 (13:39 +0000)
committerDiego Biurrun <diego@biurrun.de>
Sun, 29 Apr 2007 13:39:27 +0000 (13:39 +0000)
Originally committed as revision 23173 to svn://svn.mplayerhq.hu/mplayer/trunk/libswscale

libswscale/swscale-example.c
libswscale/swscale.c
libswscale/swscale.h
libswscale/swscale_internal.h

dissimilarity index 71%
index 803ffa0..e62faf6 100644 (file)
-/*
- * Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <inttypes.h>
-#include <stdarg.h>
-
-#undef HAVE_AV_CONFIG_H
-#include "avutil.h"
-#include "swscale.h"
-#include "swscale_internal.h"
-#include "rgb2rgb.h"
-
-static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, int w, int h){
-       int x,y;
-       uint64_t ssd=0;
-
-//printf("%d %d\n", w, h);
-
-       for(y=0; y<h; y++){
-               for(x=0; x<w; x++){
-                       int d= src1[x + y*stride1] - src2[x + y*stride2];
-                       ssd+= d*d;
-//printf("%d", abs(src1[x + y*stride1] - src2[x + y*stride2])/26 );
-               }
-//printf("\n");
-       }
-       return ssd;
-}
-
-// test by ref -> src -> dst -> out & compare out against ref
-// ref & out are YV12
-static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat, int dstFormat,
-                   int srcW, int srcH, int dstW, int dstH, int flags){
-       uint8_t *src[3];
-       uint8_t *dst[3];
-       uint8_t *out[3];
-       int srcStride[3], dstStride[3];
-       int i;
-       uint64_t ssdY, ssdU, ssdV;
-       struct SwsContext *srcContext, *dstContext, *outContext;
-       int res;
-
-       res = 0;
-       for(i=0; i<3; i++){
-               // avoid stride % bpp != 0
-               if(srcFormat==PIX_FMT_RGB24 || srcFormat==PIX_FMT_BGR24)
-                       srcStride[i]= srcW*3;
-               else
-                       srcStride[i]= srcW*4;
-
-               if(dstFormat==PIX_FMT_RGB24 || dstFormat==PIX_FMT_BGR24)
-                       dstStride[i]= dstW*3;
-               else
-                       dstStride[i]= dstW*4;
-
-               src[i]= (uint8_t*) malloc(srcStride[i]*srcH);
-               dst[i]= (uint8_t*) malloc(dstStride[i]*dstH);
-               out[i]= (uint8_t*) malloc(refStride[i]*h);
-               if ((src[i] == NULL) || (dst[i] == NULL) || (out[i] == NULL)) {
-                       perror("Malloc");
-                       res = -1;
-
-                       goto end;
-               }
-       }
-
-       dstContext = outContext = NULL;
-       srcContext= sws_getContext(w, h, PIX_FMT_YUV420P, srcW, srcH, srcFormat, flags, NULL, NULL, NULL);
-       if (srcContext == NULL) {
-               fprintf(stderr, "Failed to get %s ---> %s\n",
-                               sws_format_name(PIX_FMT_YUV420P),
-                               sws_format_name(srcFormat));
-               res = -1;
-
-               goto end;
-       }
-       dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL);
-       if (dstContext == NULL) {
-               fprintf(stderr, "Failed to get %s ---> %s\n",
-                               sws_format_name(srcFormat),
-                               sws_format_name(dstFormat));
-               res = -1;
-
-               goto end;
-       }
-       outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUV420P, flags, NULL, NULL, NULL);
-       if (outContext == NULL) {
-               fprintf(stderr, "Failed to get %s ---> %s\n",
-                               sws_format_name(dstFormat),
-                               sws_format_name(PIX_FMT_YUV420P));
-               res = -1;
-
-               goto end;
-       }
-//     printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2],
-//             (int)src[0], (int)src[1], (int)src[2]);
-
-       sws_scale(srcContext, ref, refStride, 0, h   , src, srcStride);
-       sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
-       sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);
-
-#if defined(ARCH_X86)
-       asm volatile ("emms\n\t");
-#endif
-
-       ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
-       ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);
-       ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);
-
-       if(srcFormat == PIX_FMT_GRAY8 || dstFormat==PIX_FMT_GRAY8) ssdU=ssdV=0; //FIXME check that output is really gray
-
-       ssdY/= w*h;
-       ssdU/= w*h/4;
-       ssdV/= w*h/4;
-
-       if(ssdY>100 || ssdU>100 || ssdV>100){
-               printf(" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5lld,%5lld,%5lld\n",
-                       sws_format_name(srcFormat), srcW, srcH,
-                       sws_format_name(dstFormat), dstW, dstH,
-                       flags,
-                       ssdY, ssdU, ssdV);
-       }
-
-       end:
-
-       sws_freeContext(srcContext);
-       sws_freeContext(dstContext);
-       sws_freeContext(outContext);
-
-       for(i=0; i<3; i++){
-               free(src[i]);
-               free(dst[i]);
-               free(out[i]);
-       }
-
-       return res;
-}
-
-void fast_memcpy(void *a, void *b, int s){ //FIXME
-    memcpy(a, b, s);
-}
-
-static void selfTest(uint8_t *src[3], int stride[3], int w, int h){
-       enum PixelFormat srcFormat, dstFormat;
-       int srcW, srcH, dstW, dstH;
-       int flags;
-
-       for(srcFormat = 0; srcFormat < PIX_FMT_NB; srcFormat++) {
-               for(dstFormat = 0; dstFormat < PIX_FMT_NB; dstFormat++) {
-                       printf("%s -> %s\n",
-                                       sws_format_name(srcFormat),
-                                       sws_format_name(dstFormat));
-
-                       srcW= w;
-                       srcH= h;
-                       for(dstW=w - w/3; dstW<= 4*w/3; dstW+= w/3){
-                               for(dstH=h - h/3; dstH<= 4*h/3; dstH+= h/3){
-                                       for(flags=1; flags<33; flags*=2) {
-                                               int res;
-
-                                               res = doTest(src, stride, w, h, srcFormat, dstFormat,
-                                                       srcW, srcH, dstW, dstH, flags);
-                                               if (res < 0) {
-                                                       dstW = 4 * w / 3;
-                                                       dstH = 4 * h / 3;
-                                                       flags = 33;
-                                               }
-                                       }
-                               }
-                       }
-               }
-       }
-}
-
-#define W 96
-#define H 96
-
-int main(int argc, char **argv){
-       uint8_t *rgb_data = malloc (W*H*4);
-       uint8_t *rgb_src[3]= {rgb_data, NULL, NULL};
-       int rgb_stride[3]={4*W, 0, 0};
-       uint8_t *data = malloc (3*W*H);
-       uint8_t *src[3]= {data, data+W*H, data+W*H*2};
-       int stride[3]={W, W, W};
-       int x, y;
-       struct SwsContext *sws;
-
-       sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUV420P, 2, NULL, NULL, NULL);
-
-       for(y=0; y<H; y++){
-               for(x=0; x<W*4; x++){
-                       rgb_data[ x + y*4*W]= random();
-               }
-       }
-#if defined(ARCH_X86)
-       sws_rgb2rgb_init(SWS_CPU_CAPS_MMX*0);
-#else
-       sws_rgb2rgb_init(0);
-#endif
-       sws_scale(sws, rgb_src, rgb_stride, 0, H   , src, stride);
-
-#if defined(ARCH_X86)
-       asm volatile ("emms\n\t");
-#endif
-
-       selfTest(src,  stride, W, H);
-
-        return 123;
-}
+/*
+ * Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <inttypes.h>
+#include <stdarg.h>
+
+#undef HAVE_AV_CONFIG_H
+#include "avutil.h"
+#include "swscale.h"
+#include "swscale_internal.h"
+#include "rgb2rgb.h"
+
+static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, int w, int h){
+    int x,y;
+    uint64_t ssd=0;
+
+//printf("%d %d\n", w, h);
+
+    for (y=0; y<h; y++){
+        for (x=0; x<w; x++){
+            int d= src1[x + y*stride1] - src2[x + y*stride2];
+            ssd+= d*d;
+//printf("%d", abs(src1[x + y*stride1] - src2[x + y*stride2])/26 );
+        }
+//printf("\n");
+    }
+    return ssd;
+}
+
+// test by ref -> src -> dst -> out & compare out against ref
+// ref & out are YV12
+static int doTest(uint8_t *ref[3], int refStride[3], int w, int h, int srcFormat, int dstFormat,
+                  int srcW, int srcH, int dstW, int dstH, int flags){
+    uint8_t *src[3];
+    uint8_t *dst[3];
+    uint8_t *out[3];
+    int srcStride[3], dstStride[3];
+    int i;
+    uint64_t ssdY, ssdU, ssdV;
+    struct SwsContext *srcContext, *dstContext, *outContext;
+    int res;
+
+    res = 0;
+    for (i=0; i<3; i++){
+        // avoid stride % bpp != 0
+        if (srcFormat==PIX_FMT_RGB24 || srcFormat==PIX_FMT_BGR24)
+            srcStride[i]= srcW*3;
+        else
+            srcStride[i]= srcW*4;
+
+        if (dstFormat==PIX_FMT_RGB24 || dstFormat==PIX_FMT_BGR24)
+            dstStride[i]= dstW*3;
+        else
+            dstStride[i]= dstW*4;
+
+        src[i]= (uint8_t*) malloc(srcStride[i]*srcH);
+        dst[i]= (uint8_t*) malloc(dstStride[i]*dstH);
+        out[i]= (uint8_t*) malloc(refStride[i]*h);
+        if ((src[i] == NULL) || (dst[i] == NULL) || (out[i] == NULL)) {
+            perror("Malloc");
+            res = -1;
+
+            goto end;
+        }
+    }
+
+    dstContext = outContext = NULL;
+    srcContext= sws_getContext(w, h, PIX_FMT_YUV420P, srcW, srcH, srcFormat, flags, NULL, NULL, NULL);
+    if (srcContext == NULL) {
+        fprintf(stderr, "Failed to get %s ---> %s\n",
+                sws_format_name(PIX_FMT_YUV420P),
+                sws_format_name(srcFormat));
+        res = -1;
+
+        goto end;
+    }
+    dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL);
+    if (dstContext == NULL) {
+        fprintf(stderr, "Failed to get %s ---> %s\n",
+                sws_format_name(srcFormat),
+                sws_format_name(dstFormat));
+        res = -1;
+
+        goto end;
+    }
+    outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUV420P, flags, NULL, NULL, NULL);
+    if (outContext == NULL) {
+        fprintf(stderr, "Failed to get %s ---> %s\n",
+                sws_format_name(dstFormat),
+                sws_format_name(PIX_FMT_YUV420P));
+        res = -1;
+
+        goto end;
+    }
+//    printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2],
+//        (int)src[0], (int)src[1], (int)src[2]);
+
+    sws_scale(srcContext, ref, refStride, 0, h   , src, srcStride);
+    sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
+    sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);
+
+#if defined(ARCH_X86)
+    asm volatile ("emms\n\t");
+#endif
+
+    ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
+    ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);
+    ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);
+
+    if (srcFormat == PIX_FMT_GRAY8 || dstFormat==PIX_FMT_GRAY8) ssdU=ssdV=0; //FIXME check that output is really gray
+
+    ssdY/= w*h;
+    ssdU/= w*h/4;
+    ssdV/= w*h/4;
+
+    if (ssdY>100 || ssdU>100 || ssdV>100){
+        printf(" %s %dx%d -> %s %4dx%4d flags=%2d SSD=%5lld,%5lld,%5lld\n",
+               sws_format_name(srcFormat), srcW, srcH,
+               sws_format_name(dstFormat), dstW, dstH,
+               flags,
+               ssdY, ssdU, ssdV);
+    }
+
+    end:
+
+    sws_freeContext(srcContext);
+    sws_freeContext(dstContext);
+    sws_freeContext(outContext);
+
+    for (i=0; i<3; i++){
+        free(src[i]);
+        free(dst[i]);
+        free(out[i]);
+    }
+
+    return res;
+}
+
+void fast_memcpy(void *a, void *b, int s){ //FIXME
+    memcpy(a, b, s);
+}
+
+static void selfTest(uint8_t *src[3], int stride[3], int w, int h){
+    enum PixelFormat srcFormat, dstFormat;
+    int srcW, srcH, dstW, dstH;
+    int flags;
+
+    for (srcFormat = 0; srcFormat < PIX_FMT_NB; srcFormat++) {
+        for (dstFormat = 0; dstFormat < PIX_FMT_NB; dstFormat++) {
+            printf("%s -> %s\n",
+                   sws_format_name(srcFormat),
+                   sws_format_name(dstFormat));
+
+            srcW= w;
+            srcH= h;
+            for (dstW=w - w/3; dstW<= 4*w/3; dstW+= w/3){
+                for (dstH=h - h/3; dstH<= 4*h/3; dstH+= h/3){
+                    for (flags=1; flags<33; flags*=2) {
+                        int res;
+
+                        res = doTest(src, stride, w, h, srcFormat, dstFormat,
+                                     srcW, srcH, dstW, dstH, flags);
+                        if (res < 0) {
+                            dstW = 4 * w / 3;
+                            dstH = 4 * h / 3;
+                            flags = 33;
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+#define W 96
+#define H 96
+
+int main(int argc, char **argv){
+    uint8_t *rgb_data = malloc (W*H*4);
+    uint8_t *rgb_src[3]= {rgb_data, NULL, NULL};
+    int rgb_stride[3]={4*W, 0, 0};
+    uint8_t *data = malloc (3*W*H);
+    uint8_t *src[3]= {data, data+W*H, data+W*H*2};
+    int stride[3]={W, W, W};
+    int x, y;
+    struct SwsContext *sws;
+
+    sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUV420P, 2, NULL, NULL, NULL);
+
+    for (y=0; y<H; y++){
+        for (x=0; x<W*4; x++){
+            rgb_data[ x + y*4*W]= random();
+        }
+    }
+#if defined(ARCH_X86)
+    sws_rgb2rgb_init(SWS_CPU_CAPS_MMX*0);
+#else
+    sws_rgb2rgb_init(0);
+#endif
+    sws_scale(sws, rgb_src, rgb_stride, 0, H   , src, stride);
+
+#if defined(ARCH_X86)
+    asm volatile ("emms\n\t");
+#endif
+
+    selfTest(src,  stride, W, H);
+
+    return 123;
+}
dissimilarity index 78%
index af690e9..901e6c6 100644 (file)
-/*
- * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
- *
- * This file is part of FFmpeg.
- *
- * FFmpeg is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * FFmpeg is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with FFmpeg; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- *
- * the C code (not assembly, mmx, ...) of this file can be used
- * under the LGPL license too
- */
-
-/*
-  supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8/Y800, YVU9/IF09, PAL8
-  supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
-  {BGR,RGB}{1,4,8,15,16} support dithering
-
-  unscaled special converters (YV12=I420=IYUV, Y800=Y8)
-  YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
-  x -> x
-  YUV9 -> YV12
-  YUV9/YV12 -> Y800
-  Y800 -> YUV9/YV12
-  BGR24 -> BGR32 & RGB24 -> RGB32
-  BGR32 -> BGR24 & RGB32 -> RGB24
-  BGR15 -> BGR16
-*/
-
-/*
-tested special converters (most are tested actually but i didnt write it down ...)
- YV12 -> BGR16
- YV12 -> YV12
- BGR15 -> BGR16
- BGR16 -> BGR16
- YVU9 -> YV12
-
-untested special converters
-  YV12/I420 -> BGR15/BGR24/BGR32 (its the yuv2rgb stuff, so it should be ok)
-  YV12/I420 -> YV12/I420
-  YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
-  BGR24 -> BGR32 & RGB24 -> RGB32
-  BGR32 -> BGR24 & RGB32 -> RGB24
-  BGR24 -> YV12
-*/
-
-#include <inttypes.h>
-#include <string.h>
-#include <math.h>
-#include <stdio.h>
-#include <unistd.h>
-#include "config.h"
-#include <assert.h>
-#ifdef HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-#endif
-#include "swscale.h"
-#include "swscale_internal.h"
-#include "x86_cpu.h"
-#include "bswap.h"
-#include "rgb2rgb.h"
-#ifdef USE_FASTMEMCPY
-#include "libvo/fastmemcpy.h"
-#endif
-
-#undef MOVNTQ
-#undef PAVGB
-
-//#undef HAVE_MMX2
-//#define HAVE_3DNOW
-//#undef HAVE_MMX
-//#undef ARCH_X86
-//#define WORDS_BIGENDIAN
-#define DITHER1XBPP
-
-#define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit
-
-#define RET 0xC3 //near return opcode for X86
-
-#ifdef MP_DEBUG
-#define ASSERT(x) assert(x);
-#else
-#define ASSERT(x) ;
-#endif
-
-#ifdef M_PI
-#define PI M_PI
-#else
-#define PI 3.14159265358979323846
-#endif
-
-#define isSupportedIn(x)  ((x)==PIX_FMT_YUV420P || (x)==PIX_FMT_YUYV422 || (x)==PIX_FMT_UYVY422\
-                       || (x)==PIX_FMT_RGB32|| (x)==PIX_FMT_BGR24|| (x)==PIX_FMT_BGR565|| (x)==PIX_FMT_BGR555\
-                       || (x)==PIX_FMT_BGR32|| (x)==PIX_FMT_RGB24|| (x)==PIX_FMT_RGB565|| (x)==PIX_FMT_RGB555\
-                       || (x)==PIX_FMT_GRAY8 || (x)==PIX_FMT_YUV410P\
-                       || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE\
-                       || (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_YUV422P || (x)==PIX_FMT_YUV411P\
-                       || (x)==PIX_FMT_PAL8 || (x)==PIX_FMT_BGR8 || (x)==PIX_FMT_RGB8\
-                        || (x)==PIX_FMT_BGR4_BYTE  || (x)==PIX_FMT_RGB4_BYTE)
-#define isSupportedOut(x) ((x)==PIX_FMT_YUV420P || (x)==PIX_FMT_YUYV422 || (x)==PIX_FMT_UYVY422\
-                       || (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_YUV422P || (x)==PIX_FMT_YUV411P\
-                       || isRGB(x) || isBGR(x)\
-                       || (x)==PIX_FMT_NV12 || (x)==PIX_FMT_NV21\
-                       || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE\
-                       || (x)==PIX_FMT_GRAY8 || (x)==PIX_FMT_YUV410P)
-#define isPacked(x)    ((x)==PIX_FMT_PAL8 || (x)==PIX_FMT_YUYV422 ||\
-                        (x)==PIX_FMT_UYVY422 || isRGB(x) || isBGR(x))
-
-#define RGB2YUV_SHIFT 16
-#define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
-#define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
-#define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
-#define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
-#define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
-#define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
-#define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
-#define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
-#define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
-
-extern const int32_t Inverse_Table_6_9[8][4];
-
-/*
-NOTES
-Special versions: fast Y 1:1 scaling (no interpolation in y direction)
-
-TODO
-more intelligent missalignment avoidance for the horizontal scaler
-write special vertical cubic upscale version
-Optimize C code (yv12 / minmax)
-add support for packed pixel yuv input & output
-add support for Y8 output
-optimize bgr24 & bgr32
-add BGR4 output support
-write special BGR->BGR scaler
-*/
-
-#if defined(ARCH_X86) && defined (CONFIG_GPL)
-static uint64_t attribute_used __attribute__((aligned(8))) bF8=       0xF8F8F8F8F8F8F8F8LL;
-static uint64_t attribute_used __attribute__((aligned(8))) bFC=       0xFCFCFCFCFCFCFCFCLL;
-static uint64_t __attribute__((aligned(8))) w10=       0x0010001000100010LL;
-static uint64_t attribute_used __attribute__((aligned(8))) w02=       0x0002000200020002LL;
-static uint64_t attribute_used __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
-static uint64_t attribute_used __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
-static uint64_t attribute_used __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
-static uint64_t attribute_used __attribute__((aligned(8))) bm01010101=0x00FF00FF00FF00FFLL;
-
-static volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;
-static volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;
-static volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;
-static volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;
-
-static uint64_t __attribute__((aligned(8))) dither4[2]={
-       0x0103010301030103LL,
-       0x0200020002000200LL,};
-
-static uint64_t __attribute__((aligned(8))) dither8[2]={
-       0x0602060206020602LL,
-       0x0004000400040004LL,};
-
-static uint64_t __attribute__((aligned(8))) b16Mask=   0x001F001F001F001FLL;
-static uint64_t attribute_used __attribute__((aligned(8))) g16Mask=   0x07E007E007E007E0LL;
-static uint64_t attribute_used __attribute__((aligned(8))) r16Mask=   0xF800F800F800F800LL;
-static uint64_t __attribute__((aligned(8))) b15Mask=   0x001F001F001F001FLL;
-static uint64_t attribute_used __attribute__((aligned(8))) g15Mask=   0x03E003E003E003E0LL;
-static uint64_t attribute_used __attribute__((aligned(8))) r15Mask=   0x7C007C007C007C00LL;
-
-static uint64_t attribute_used __attribute__((aligned(8))) M24A=   0x00FF0000FF0000FFLL;
-static uint64_t attribute_used __attribute__((aligned(8))) M24B=   0xFF0000FF0000FF00LL;
-static uint64_t attribute_used __attribute__((aligned(8))) M24C=   0x0000FF0000FF0000LL;
-
-#ifdef FAST_BGR2YV12
-static const uint64_t bgr2YCoeff  attribute_used __attribute__((aligned(8))) = 0x000000210041000DULL;
-static const uint64_t bgr2UCoeff  attribute_used __attribute__((aligned(8))) = 0x0000FFEEFFDC0038ULL;
-static const uint64_t bgr2VCoeff  attribute_used __attribute__((aligned(8))) = 0x00000038FFD2FFF8ULL;
-#else
-static const uint64_t bgr2YCoeff  attribute_used __attribute__((aligned(8))) = 0x000020E540830C8BULL;
-static const uint64_t bgr2UCoeff  attribute_used __attribute__((aligned(8))) = 0x0000ED0FDAC23831ULL;
-static const uint64_t bgr2VCoeff  attribute_used __attribute__((aligned(8))) = 0x00003831D0E6F6EAULL;
-#endif /* FAST_BGR2YV12 */
-static const uint64_t bgr2YOffset attribute_used __attribute__((aligned(8))) = 0x1010101010101010ULL;
-static const uint64_t bgr2UVOffset attribute_used __attribute__((aligned(8)))= 0x8080808080808080ULL;
-static const uint64_t w1111       attribute_used __attribute__((aligned(8))) = 0x0001000100010001ULL;
-#endif /* defined(ARCH_X86) */
-
-// clipping helper table for C implementations:
-static unsigned char clip_table[768];
-
-static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
-
-extern const uint8_t dither_2x2_4[2][8];
-extern const uint8_t dither_2x2_8[2][8];
-extern const uint8_t dither_8x8_32[8][8];
-extern const uint8_t dither_8x8_73[8][8];
-extern const uint8_t dither_8x8_220[8][8];
-
-static const char * sws_context_to_name(void * ptr) {
-    return "swscaler";
-}
-
-static AVClass sws_context_class = { "SWScaler", sws_context_to_name, NULL };
-
-char *sws_format_name(enum PixelFormat format)
-{
-    switch (format) {
-        case PIX_FMT_YUV420P:
-            return "yuv420p";
-        case PIX_FMT_YUYV422:
-            return "yuyv422";
-        case PIX_FMT_RGB24:
-            return "rgb24";
-        case PIX_FMT_BGR24:
-            return "bgr24";
-        case PIX_FMT_YUV422P:
-            return "yuv422p";
-        case PIX_FMT_YUV444P:
-            return "yuv444p";
-        case PIX_FMT_RGB32:
-            return "rgb32";
-        case PIX_FMT_YUV410P:
-            return "yuv410p";
-        case PIX_FMT_YUV411P:
-            return "yuv411p";
-        case PIX_FMT_RGB565:
-            return "rgb565";
-        case PIX_FMT_RGB555:
-            return "rgb555";
-        case PIX_FMT_GRAY16BE:
-            return "gray16be";
-        case PIX_FMT_GRAY16LE:
-            return "gray16le";
-        case PIX_FMT_GRAY8:
-            return "gray8";
-        case PIX_FMT_MONOWHITE:
-            return "mono white";
-        case PIX_FMT_MONOBLACK:
-            return "mono black";
-        case PIX_FMT_PAL8:
-            return "Palette";
-        case PIX_FMT_YUVJ420P:
-            return "yuvj420p";
-        case PIX_FMT_YUVJ422P:
-            return "yuvj422p";
-        case PIX_FMT_YUVJ444P:
-            return "yuvj444p";
-        case PIX_FMT_XVMC_MPEG2_MC:
-            return "xvmc_mpeg2_mc";
-        case PIX_FMT_XVMC_MPEG2_IDCT:
-            return "xvmc_mpeg2_idct";
-        case PIX_FMT_UYVY422:
-            return "uyvy422";
-        case PIX_FMT_UYYVYY411:
-            return "uyyvyy411";
-        case PIX_FMT_RGB32_1:
-            return "rgb32x";
-        case PIX_FMT_BGR32_1:
-            return "bgr32x";
-        case PIX_FMT_BGR32:
-            return "bgr32";
-        case PIX_FMT_BGR565:
-            return "bgr565";
-        case PIX_FMT_BGR555:
-            return "bgr555";
-        case PIX_FMT_BGR8:
-            return "bgr8";
-        case PIX_FMT_BGR4:
-            return "bgr4";
-        case PIX_FMT_BGR4_BYTE:
-            return "bgr4 byte";
-        case PIX_FMT_RGB8:
-            return "rgb8";
-        case PIX_FMT_RGB4:
-            return "rgb4";
-        case PIX_FMT_RGB4_BYTE:
-            return "rgb4 byte";
-        case PIX_FMT_NV12:
-            return "nv12";
-        case PIX_FMT_NV21:
-            return "nv21";
-        default:
-            return "Unknown format";
-    }
-}
-
-#if defined(ARCH_X86) && defined (CONFIG_GPL)
-void in_asm_used_var_warning_killer()
-{
- volatile int i= bF8+bFC+w10+
- bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+
- M24A+M24B+M24C+w02 + b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0]+bm01010101;
- if(i) i=0;
-}
-#endif
-
-static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
-                                   int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
-                                   uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
-{
-       //FIXME Optimize (just quickly writen not opti..)
-       int i;
-       for(i=0; i<dstW; i++)
-       {
-               int val=1<<18;
-               int j;
-               for(j=0; j<lumFilterSize; j++)
-                       val += lumSrc[j][i] * lumFilter[j];
-
-               dest[i]= av_clip_uint8(val>>19);
-       }
-
-       if(uDest != NULL)
-               for(i=0; i<chrDstW; i++)
-               {
-                       int u=1<<18;
-                       int v=1<<18;
-                       int j;
-                       for(j=0; j<chrFilterSize; j++)
-                       {
-                               u += chrSrc[j][i] * chrFilter[j];
-                               v += chrSrc[j][i + 2048] * chrFilter[j];
-                       }
-
-                       uDest[i]= av_clip_uint8(u>>19);
-                       vDest[i]= av_clip_uint8(v>>19);
-               }
-}
-
-static inline void yuv2nv12XinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
-                               int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
-                               uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
-{
-       //FIXME Optimize (just quickly writen not opti..)
-       int i;
-       for(i=0; i<dstW; i++)
-       {
-               int val=1<<18;
-               int j;
-               for(j=0; j<lumFilterSize; j++)
-                       val += lumSrc[j][i] * lumFilter[j];
-
-               dest[i]= av_clip_uint8(val>>19);
-       }
-
-       if(uDest == NULL)
-               return;
-
-       if(dstFormat == PIX_FMT_NV12)
-               for(i=0; i<chrDstW; i++)
-               {
-                       int u=1<<18;
-                       int v=1<<18;
-                       int j;
-                       for(j=0; j<chrFilterSize; j++)
-                       {
-                               u += chrSrc[j][i] * chrFilter[j];
-                               v += chrSrc[j][i + 2048] * chrFilter[j];
-                       }
-
-                       uDest[2*i]= av_clip_uint8(u>>19);
-                       uDest[2*i+1]= av_clip_uint8(v>>19);
-               }
-       else
-               for(i=0; i<chrDstW; i++)
-               {
-                       int u=1<<18;
-                       int v=1<<18;
-                       int j;
-                       for(j=0; j<chrFilterSize; j++)
-                       {
-                               u += chrSrc[j][i] * chrFilter[j];
-                               v += chrSrc[j][i + 2048] * chrFilter[j];
-                       }
-
-                       uDest[2*i]= av_clip_uint8(v>>19);
-                       uDest[2*i+1]= av_clip_uint8(u>>19);
-               }
-}
-
-#define YSCALE_YUV_2_PACKEDX_C(type) \
-               for(i=0; i<(dstW>>1); i++){\
-                       int j;\
-                       int Y1=1<<18;\
-                       int Y2=1<<18;\
-                       int U=1<<18;\
-                       int V=1<<18;\
-                       type attribute_unused *r, *b, *g;\
-                       const int i2= 2*i;\
-                       \
-                       for(j=0; j<lumFilterSize; j++)\
-                       {\
-                               Y1 += lumSrc[j][i2] * lumFilter[j];\
-                               Y2 += lumSrc[j][i2+1] * lumFilter[j];\
-                       }\
-                       for(j=0; j<chrFilterSize; j++)\
-                       {\
-                               U += chrSrc[j][i] * chrFilter[j];\
-                               V += chrSrc[j][i+2048] * chrFilter[j];\
-                       }\
-                       Y1>>=19;\
-                       Y2>>=19;\
-                       U >>=19;\
-                       V >>=19;\
-                       if((Y1|Y2|U|V)&256)\
-                       {\
-                               if(Y1>255)   Y1=255;\
-                               else if(Y1<0)Y1=0;\
-                               if(Y2>255)   Y2=255;\
-                               else if(Y2<0)Y2=0;\
-                               if(U>255)    U=255;\
-                               else if(U<0) U=0;\
-                               if(V>255)    V=255;\
-                               else if(V<0) V=0;\
-                       }
-
-#define YSCALE_YUV_2_RGBX_C(type) \
-                       YSCALE_YUV_2_PACKEDX_C(type)\
-                       r = (type *)c->table_rV[V];\
-                       g = (type *)(c->table_gU[U] + c->table_gV[V]);\
-                       b = (type *)c->table_bU[U];\
-
-#define YSCALE_YUV_2_PACKED2_C \
-               for(i=0; i<(dstW>>1); i++){\
-                       const int i2= 2*i;\
-                       int Y1= (buf0[i2  ]*yalpha1+buf1[i2  ]*yalpha)>>19;\
-                       int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19;\
-                       int U= (uvbuf0[i     ]*uvalpha1+uvbuf1[i     ]*uvalpha)>>19;\
-                       int V= (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;\
-
-#define YSCALE_YUV_2_RGB2_C(type) \
-                       YSCALE_YUV_2_PACKED2_C\
-                       type *r, *b, *g;\
-                       r = (type *)c->table_rV[V];\
-                       g = (type *)(c->table_gU[U] + c->table_gV[V]);\
-                       b = (type *)c->table_bU[U];\
-
-#define YSCALE_YUV_2_PACKED1_C \
-               for(i=0; i<(dstW>>1); i++){\
-                       const int i2= 2*i;\
-                       int Y1= buf0[i2  ]>>7;\
-                       int Y2= buf0[i2+1]>>7;\
-                       int U= (uvbuf1[i     ])>>7;\
-                       int V= (uvbuf1[i+2048])>>7;\
-
-#define YSCALE_YUV_2_RGB1_C(type) \
-                       YSCALE_YUV_2_PACKED1_C\
-                       type *r, *b, *g;\
-                       r = (type *)c->table_rV[V];\
-                       g = (type *)(c->table_gU[U] + c->table_gV[V]);\
-                       b = (type *)c->table_bU[U];\
-
-#define YSCALE_YUV_2_PACKED1B_C \
-               for(i=0; i<(dstW>>1); i++){\
-                       const int i2= 2*i;\
-                       int Y1= buf0[i2  ]>>7;\
-                       int Y2= buf0[i2+1]>>7;\
-                       int U= (uvbuf0[i     ] + uvbuf1[i     ])>>8;\
-                       int V= (uvbuf0[i+2048] + uvbuf1[i+2048])>>8;\
-
-#define YSCALE_YUV_2_RGB1B_C(type) \
-                       YSCALE_YUV_2_PACKED1B_C\
-                       type *r, *b, *g;\
-                       r = (type *)c->table_rV[V];\
-                       g = (type *)(c->table_gU[U] + c->table_gV[V]);\
-                       b = (type *)c->table_bU[U];\
-
-#define YSCALE_YUV_2_ANYRGB_C(func, func2)\
-       switch(c->dstFormat)\
-       {\
-       case PIX_FMT_RGB32:\
-       case PIX_FMT_BGR32:\
-               func(uint32_t)\
-                       ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
-                       ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
-               }               \
-               break;\
-       case PIX_FMT_RGB24:\
-               func(uint8_t)\
-                       ((uint8_t*)dest)[0]= r[Y1];\
-                       ((uint8_t*)dest)[1]= g[Y1];\
-                       ((uint8_t*)dest)[2]= b[Y1];\
-                       ((uint8_t*)dest)[3]= r[Y2];\
-                       ((uint8_t*)dest)[4]= g[Y2];\
-                       ((uint8_t*)dest)[5]= b[Y2];\
-                       dest+=6;\
-               }\
-               break;\
-       case PIX_FMT_BGR24:\
-               func(uint8_t)\
-                       ((uint8_t*)dest)[0]= b[Y1];\
-                       ((uint8_t*)dest)[1]= g[Y1];\
-                       ((uint8_t*)dest)[2]= r[Y1];\
-                       ((uint8_t*)dest)[3]= b[Y2];\
-                       ((uint8_t*)dest)[4]= g[Y2];\
-                       ((uint8_t*)dest)[5]= r[Y2];\
-                       dest+=6;\
-               }\
-               break;\
-       case PIX_FMT_RGB565:\
-       case PIX_FMT_BGR565:\
-               {\
-                       const int dr1= dither_2x2_8[y&1    ][0];\
-                       const int dg1= dither_2x2_4[y&1    ][0];\
-                       const int db1= dither_2x2_8[(y&1)^1][0];\
-                       const int dr2= dither_2x2_8[y&1    ][1];\
-                       const int dg2= dither_2x2_4[y&1    ][1];\
-                       const int db2= dither_2x2_8[(y&1)^1][1];\
-                       func(uint16_t)\
-                               ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
-                               ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
-                       }\
-               }\
-               break;\
-       case PIX_FMT_RGB555:\
-       case PIX_FMT_BGR555:\
-               {\
-                       const int dr1= dither_2x2_8[y&1    ][0];\
-                       const int dg1= dither_2x2_8[y&1    ][1];\
-                       const int db1= dither_2x2_8[(y&1)^1][0];\
-                       const int dr2= dither_2x2_8[y&1    ][1];\
-                       const int dg2= dither_2x2_8[y&1    ][0];\
-                       const int db2= dither_2x2_8[(y&1)^1][1];\
-                       func(uint16_t)\
-                               ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
-                               ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
-                       }\
-               }\
-               break;\
-       case PIX_FMT_RGB8:\
-       case PIX_FMT_BGR8:\
-               {\
-                       const uint8_t * const d64= dither_8x8_73[y&7];\
-                       const uint8_t * const d32= dither_8x8_32[y&7];\
-                       func(uint8_t)\
-                               ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
-                               ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
-                       }\
-               }\
-               break;\
-       case PIX_FMT_RGB4:\
-       case PIX_FMT_BGR4:\
-               {\
-                       const uint8_t * const d64= dither_8x8_73 [y&7];\
-                       const uint8_t * const d128=dither_8x8_220[y&7];\
-                       func(uint8_t)\
-                               ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
-                                                + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
-                       }\
-               }\
-               break;\
-       case PIX_FMT_RGB4_BYTE:\
-       case PIX_FMT_BGR4_BYTE:\
-               {\
-                       const uint8_t * const d64= dither_8x8_73 [y&7];\
-                       const uint8_t * const d128=dither_8x8_220[y&7];\
-                       func(uint8_t)\
-                               ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
-                               ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
-                       }\
-               }\
-               break;\
-       case PIX_FMT_MONOBLACK:\
-               {\
-                       const uint8_t * const d128=dither_8x8_220[y&7];\
-                       uint8_t *g= c->table_gU[128] + c->table_gV[128];\
-                       for(i=0; i<dstW-7; i+=8){\
-                               int acc;\
-                               acc =       g[((buf0[i  ]*yalpha1+buf1[i  ]*yalpha)>>19) + d128[0]];\
-                               acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
-                               acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
-                               acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
-                               acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
-                               acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
-                               acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
-                               acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
-                               ((uint8_t*)dest)[0]= acc;\
-                               dest++;\
-                       }\
-\
-/*\
-((uint8_t*)dest)-= dstW>>4;\
-{\
-                       int acc=0;\
-                       int left=0;\
-                       static int top[1024];\
-                       static int last_new[1024][1024];\
-                       static int last_in3[1024][1024];\
-                       static int drift[1024][1024];\
-                       int topLeft=0;\
-                       int shift=0;\
-                       int count=0;\
-                       const uint8_t * const d128=dither_8x8_220[y&7];\
-                       int error_new=0;\
-                       int error_in3=0;\
-                       int f=0;\
-                       \
-                       for(i=dstW>>1; i<dstW; i++){\
-                               int in= ((buf0[i  ]*yalpha1+buf1[i  ]*yalpha)>>19);\
-                               int in2 = (76309 * (in - 16) + 32768) >> 16;\
-                               int in3 = (in2 < 0) ? 0 : ((in2 > 255) ? 255 : in2);\
-                               int old= (left*7 + topLeft + top[i]*5 + top[i+1]*3)/20 + in3\
-                                       + (last_new[y][i] - in3)*f/256;\
-                               int new= old> 128 ? 255 : 0;\
-\
-                               error_new+= FFABS(last_new[y][i] - new);\
-                               error_in3+= FFABS(last_in3[y][i] - in3);\
-                               f= error_new - error_in3*4;\
-                               if(f<0) f=0;\
-                               if(f>256) f=256;\
-\
-                               topLeft= top[i];\
-                               left= top[i]= old - new;\
-                               last_new[y][i]= new;\
-                               last_in3[y][i]= in3;\
-\
-                               acc+= acc + (new&1);\
-                               if((i&7)==6){\
-                                       ((uint8_t*)dest)[0]= acc;\
-                                       ((uint8_t*)dest)++;\
-                               }\
-                       }\
-}\
-*/\
-               }\
-               break;\
-       case PIX_FMT_YUYV422:\
-               func2\
-                       ((uint8_t*)dest)[2*i2+0]= Y1;\
-                       ((uint8_t*)dest)[2*i2+1]= U;\
-                       ((uint8_t*)dest)[2*i2+2]= Y2;\
-                       ((uint8_t*)dest)[2*i2+3]= V;\
-               }               \
-               break;\
-       case PIX_FMT_UYVY422:\
-               func2\
-                       ((uint8_t*)dest)[2*i2+0]= U;\
-                       ((uint8_t*)dest)[2*i2+1]= Y1;\
-                       ((uint8_t*)dest)[2*i2+2]= V;\
-                       ((uint8_t*)dest)[2*i2+3]= Y2;\
-               }               \
-               break;\
-       }\
-
-
-static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
-                                   int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
-                                   uint8_t *dest, int dstW, int y)
-{
-       int i;
-       switch(c->dstFormat)
-       {
-       case PIX_FMT_BGR32:
-       case PIX_FMT_RGB32:
-               YSCALE_YUV_2_RGBX_C(uint32_t)
-                       ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];
-                       ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];
-               }
-               break;
-       case PIX_FMT_RGB24:
-               YSCALE_YUV_2_RGBX_C(uint8_t)
-                       ((uint8_t*)dest)[0]= r[Y1];
-                       ((uint8_t*)dest)[1]= g[Y1];
-                       ((uint8_t*)dest)[2]= b[Y1];
-                       ((uint8_t*)dest)[3]= r[Y2];
-                       ((uint8_t*)dest)[4]= g[Y2];
-                       ((uint8_t*)dest)[5]= b[Y2];
-                       dest+=6;
-               }
-               break;
-       case PIX_FMT_BGR24:
-               YSCALE_YUV_2_RGBX_C(uint8_t)
-                       ((uint8_t*)dest)[0]= b[Y1];
-                       ((uint8_t*)dest)[1]= g[Y1];
-                       ((uint8_t*)dest)[2]= r[Y1];
-                       ((uint8_t*)dest)[3]= b[Y2];
-                       ((uint8_t*)dest)[4]= g[Y2];
-                       ((uint8_t*)dest)[5]= r[Y2];
-                       dest+=6;
-               }
-               break;
-       case PIX_FMT_RGB565:
-       case PIX_FMT_BGR565:
-               {
-                       const int dr1= dither_2x2_8[y&1    ][0];
-                       const int dg1= dither_2x2_4[y&1    ][0];
-                       const int db1= dither_2x2_8[(y&1)^1][0];
-                       const int dr2= dither_2x2_8[y&1    ][1];
-                       const int dg2= dither_2x2_4[y&1    ][1];
-                       const int db2= dither_2x2_8[(y&1)^1][1];
-                       YSCALE_YUV_2_RGBX_C(uint16_t)
-                               ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
-                               ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
-                       }
-               }
-               break;
-       case PIX_FMT_RGB555:
-       case PIX_FMT_BGR555:
-               {
-                       const int dr1= dither_2x2_8[y&1    ][0];
-                       const int dg1= dither_2x2_8[y&1    ][1];
-                       const int db1= dither_2x2_8[(y&1)^1][0];
-                       const int dr2= dither_2x2_8[y&1    ][1];
-                       const int dg2= dither_2x2_8[y&1    ][0];
-                       const int db2= dither_2x2_8[(y&1)^1][1];
-                       YSCALE_YUV_2_RGBX_C(uint16_t)
-                               ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
-                               ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
-                       }
-               }
-               break;
-       case PIX_FMT_RGB8:
-       case PIX_FMT_BGR8:
-               {
-                       const uint8_t * const d64= dither_8x8_73[y&7];
-                       const uint8_t * const d32= dither_8x8_32[y&7];
-                       YSCALE_YUV_2_RGBX_C(uint8_t)
-                               ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];
-                               ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];
-                       }
-               }
-               break;
-       case PIX_FMT_RGB4:
-       case PIX_FMT_BGR4:
-               {
-                       const uint8_t * const d64= dither_8x8_73 [y&7];
-                       const uint8_t * const d128=dither_8x8_220[y&7];
-                       YSCALE_YUV_2_RGBX_C(uint8_t)
-                               ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]
-                                                 +((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);
-                       }
-               }
-               break;
-       case PIX_FMT_RGB4_BYTE:
-       case PIX_FMT_BGR4_BYTE:
-               {
-                       const uint8_t * const d64= dither_8x8_73 [y&7];
-                       const uint8_t * const d128=dither_8x8_220[y&7];
-                       YSCALE_YUV_2_RGBX_C(uint8_t)
-                               ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];
-                               ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];
-                       }
-               }
-               break;
-       case PIX_FMT_MONOBLACK:
-               {
-                       const uint8_t * const d128=dither_8x8_220[y&7];
-                       uint8_t *g= c->table_gU[128] + c->table_gV[128];
-                       int acc=0;
-                       for(i=0; i<dstW-1; i+=2){
-                               int j;
-                               int Y1=1<<18;
-                               int Y2=1<<18;
-
-                               for(j=0; j<lumFilterSize; j++)
-                               {
-                                       Y1 += lumSrc[j][i] * lumFilter[j];
-                                       Y2 += lumSrc[j][i+1] * lumFilter[j];
-                               }
-                               Y1>>=19;
-                               Y2>>=19;
-                               if((Y1|Y2)&256)
-                               {
-                                       if(Y1>255)   Y1=255;
-                                       else if(Y1<0)Y1=0;
-                                       if(Y2>255)   Y2=255;
-                                       else if(Y2<0)Y2=0;
-                               }
-                               acc+= acc + g[Y1+d128[(i+0)&7]];
-                               acc+= acc + g[Y2+d128[(i+1)&7]];
-                               if((i&7)==6){
-                                       ((uint8_t*)dest)[0]= acc;
-                                       dest++;
-                               }
-                       }
-               }
-               break;
-       case PIX_FMT_YUYV422:
-               YSCALE_YUV_2_PACKEDX_C(void)
-                       ((uint8_t*)dest)[2*i2+0]= Y1;
-                       ((uint8_t*)dest)[2*i2+1]= U;
-                       ((uint8_t*)dest)[2*i2+2]= Y2;
-                       ((uint8_t*)dest)[2*i2+3]= V;
-               }
-                break;
-       case PIX_FMT_UYVY422:
-               YSCALE_YUV_2_PACKEDX_C(void)
-                       ((uint8_t*)dest)[2*i2+0]= U;
-                       ((uint8_t*)dest)[2*i2+1]= Y1;
-                       ((uint8_t*)dest)[2*i2+2]= V;
-                       ((uint8_t*)dest)[2*i2+3]= Y2;
-               }
-                break;
-       }
-}
-
-
-//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
-//Plain C versions
-#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT) || !defined(CONFIG_GPL)
-#define COMPILE_C
-#endif
-
-#ifdef ARCH_POWERPC
-#if (defined (HAVE_ALTIVEC) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
-#define COMPILE_ALTIVEC
-#endif //HAVE_ALTIVEC
-#endif //ARCH_POWERPC
-
-#if defined(ARCH_X86)
-
-#if ((defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
-#define COMPILE_MMX
-#endif
-
-#if (defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
-#define COMPILE_MMX2
-#endif
-
-#if ((defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
-#define COMPILE_3DNOW
-#endif
-#endif //ARCH_X86 || ARCH_X86_64
-
-#undef HAVE_MMX
-#undef HAVE_MMX2
-#undef HAVE_3DNOW
-
-#ifdef COMPILE_C
-#undef HAVE_MMX
-#undef HAVE_MMX2
-#undef HAVE_3DNOW
-#undef HAVE_ALTIVEC
-#define RENAME(a) a ## _C
-#include "swscale_template.c"
-#endif
-
-#ifdef ARCH_POWERPC
-#ifdef COMPILE_ALTIVEC
-#undef RENAME
-#define HAVE_ALTIVEC
-#define RENAME(a) a ## _altivec
-#include "swscale_template.c"
-#endif
-#endif //ARCH_POWERPC
-
-#if defined(ARCH_X86)
-
-//X86 versions
-/*
-#undef RENAME
-#undef HAVE_MMX
-#undef HAVE_MMX2
-#undef HAVE_3DNOW
-#define ARCH_X86
-#define RENAME(a) a ## _X86
-#include "swscale_template.c"
-*/
-//MMX versions
-#ifdef COMPILE_MMX
-#undef RENAME
-#define HAVE_MMX
-#undef HAVE_MMX2
-#undef HAVE_3DNOW
-#define RENAME(a) a ## _MMX
-#include "swscale_template.c"
-#endif
-
-//MMX2 versions
-#ifdef COMPILE_MMX2
-#undef RENAME
-#define HAVE_MMX
-#define HAVE_MMX2
-#undef HAVE_3DNOW
-#define RENAME(a) a ## _MMX2
-#include "swscale_template.c"
-#endif
-
-//3DNOW versions
-#ifdef COMPILE_3DNOW
-#undef RENAME
-#define HAVE_MMX
-#undef HAVE_MMX2
-#define HAVE_3DNOW
-#define RENAME(a) a ## _3DNow
-#include "swscale_template.c"
-#endif
-
-#endif //ARCH_X86 || ARCH_X86_64
-
-// minor note: the HAVE_xyz is messed up after that line so don't use it
-
-static double getSplineCoeff(double a, double b, double c, double d, double dist)
-{
-//     printf("%f %f %f %f %f\n", a,b,c,d,dist);
-       if(dist<=1.0)   return ((d*dist + c)*dist + b)*dist +a;
-       else            return getSplineCoeff(  0.0,
-                                                b+ 2.0*c + 3.0*d,
-                                                       c + 3.0*d,
-                                               -b- 3.0*c - 6.0*d,
-                                               dist-1.0);
-}
-
-static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
-                             int srcW, int dstW, int filterAlign, int one, int flags,
-                             SwsVector *srcFilter, SwsVector *dstFilter, double param[2])
-{
-       int i;
-       int filterSize;
-       int filter2Size;
-       int minFilterSize;
-       double *filter=NULL;
-       double *filter2=NULL;
-#if defined(ARCH_X86)
-       if(flags & SWS_CPU_CAPS_MMX)
-               asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
-#endif
-
-       // Note the +1 is for the MMXscaler which reads over the end
-       *filterPos = av_malloc((dstW+1)*sizeof(int16_t));
-
-       if(FFABS(xInc - 0x10000) <10) // unscaled
-       {
-               int i;
-               filterSize= 1;
-               filter= av_malloc(dstW*sizeof(double)*filterSize);
-               for(i=0; i<dstW*filterSize; i++) filter[i]=0;
-
-               for(i=0; i<dstW; i++)
-               {
-                       filter[i*filterSize]=1;
-                       (*filterPos)[i]=i;
-               }
-
-       }
-       else if(flags&SWS_POINT) // lame looking point sampling mode
-       {
-               int i;
-               int xDstInSrc;
-               filterSize= 1;
-               filter= av_malloc(dstW*sizeof(double)*filterSize);
-
-               xDstInSrc= xInc/2 - 0x8000;
-               for(i=0; i<dstW; i++)
-               {
-                       int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
-
-                       (*filterPos)[i]= xx;
-                       filter[i]= 1.0;
-                       xDstInSrc+= xInc;
-               }
-       }
-       else if((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) // bilinear upscale
-       {
-               int i;
-               int xDstInSrc;
-               if     (flags&SWS_BICUBIC) filterSize= 4;
-               else if(flags&SWS_X      ) filterSize= 4;
-               else                       filterSize= 2; // SWS_BILINEAR / SWS_AREA
-               filter= av_malloc(dstW*sizeof(double)*filterSize);
-
-               xDstInSrc= xInc/2 - 0x8000;
-               for(i=0; i<dstW; i++)
-               {
-                       int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
-                       int j;
-
-                       (*filterPos)[i]= xx;
-                               //Bilinear upscale / linear interpolate / Area averaging
-                               for(j=0; j<filterSize; j++)
-                               {
-                                       double d= FFABS((xx<<16) - xDstInSrc)/(double)(1<<16);
-                                       double coeff= 1.0 - d;
-                                       if(coeff<0) coeff=0;
-                                       filter[i*filterSize + j]= coeff;
-                                       xx++;
-                               }
-                       xDstInSrc+= xInc;
-               }
-       }
-       else
-       {
-               double xDstInSrc;
-               double sizeFactor, filterSizeInSrc;
-               const double xInc1= (double)xInc / (double)(1<<16);
-
-               if     (flags&SWS_BICUBIC)      sizeFactor= 4.0;
-               else if(flags&SWS_X)            sizeFactor= 8.0;
-               else if(flags&SWS_AREA)         sizeFactor= 1.0; //downscale only, for upscale it is bilinear
-               else if(flags&SWS_GAUSS)        sizeFactor= 8.0;   // infinite ;)
-               else if(flags&SWS_LANCZOS)      sizeFactor= param[0] != SWS_PARAM_DEFAULT ? 2.0*param[0] : 6.0;
-               else if(flags&SWS_SINC)         sizeFactor= 20.0; // infinite ;)
-               else if(flags&SWS_SPLINE)       sizeFactor= 20.0;  // infinite ;)
-               else if(flags&SWS_BILINEAR)     sizeFactor= 2.0;
-               else {
-                       sizeFactor= 0.0; //GCC warning killer
-                       ASSERT(0)
-               }
-
-               if(xInc1 <= 1.0)        filterSizeInSrc= sizeFactor; // upscale
-               else                    filterSizeInSrc= sizeFactor*srcW / (double)dstW;
-
-               filterSize= (int)ceil(1 + filterSizeInSrc); // will be reduced later if possible
-               if(filterSize > srcW-2) filterSize=srcW-2;
-
-               filter= av_malloc(dstW*sizeof(double)*filterSize);
-
-               xDstInSrc= xInc1 / 2.0 - 0.5;
-               for(i=0; i<dstW; i++)
-               {
-                       int xx= (int)(xDstInSrc - (filterSize-1)*0.5 + 0.5);
-                       int j;
-                       (*filterPos)[i]= xx;
-                       for(j=0; j<filterSize; j++)
-                       {
-                               double d= FFABS(xx - xDstInSrc)/filterSizeInSrc*sizeFactor;
-                               double coeff;
-                               if(flags & SWS_BICUBIC)
-                               {
-                                       double B= param[0] != SWS_PARAM_DEFAULT ? param[0] : 0.0;
-                                       double C= param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6;
-
-                                       if(d<1.0)
-                                               coeff = (12-9*B-6*C)*d*d*d + (-18+12*B+6*C)*d*d + 6-2*B;
-                                       else if(d<2.0)
-                                               coeff = (-B-6*C)*d*d*d + (6*B+30*C)*d*d + (-12*B-48*C)*d +8*B+24*C;
-                                       else
-                                               coeff=0.0;
-                               }
-/*                             else if(flags & SWS_X)
-                               {
-                                       double p= param ? param*0.01 : 0.3;
-                                       coeff = d ? sin(d*PI)/(d*PI) : 1.0;
-                                       coeff*= pow(2.0, - p*d*d);
-                               }*/
-                               else if(flags & SWS_X)
-                               {
-                                       double A= param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
-
-                                       if(d<1.0)
-                                               coeff = cos(d*PI);
-                                       else
-                                               coeff=-1.0;
-                                       if(coeff<0.0)   coeff= -pow(-coeff, A);
-                                       else            coeff=  pow( coeff, A);
-                                       coeff= coeff*0.5 + 0.5;
-                               }
-                               else if(flags & SWS_AREA)
-                               {
-                                       double srcPixelSize= 1.0/xInc1;
-                                       if(d + srcPixelSize/2 < 0.5) coeff= 1.0;
-                                       else if(d - srcPixelSize/2 < 0.5) coeff= (0.5-d)/srcPixelSize + 0.5;
-                                       else coeff=0.0;
-                               }
-                               else if(flags & SWS_GAUSS)
-                               {
-                                       double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
-                                       coeff = pow(2.0, - p*d*d);
-                               }
-                               else if(flags & SWS_SINC)
-                               {
-                                       coeff = d ? sin(d*PI)/(d*PI) : 1.0;
-                               }
-                               else if(flags & SWS_LANCZOS)
-                               {
-                                       double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
-                                       coeff = d ? sin(d*PI)*sin(d*PI/p)/(d*d*PI*PI/p) : 1.0;
-                                       if(d>p) coeff=0;
-                               }
-                               else if(flags & SWS_BILINEAR)
-                               {
-                                       coeff= 1.0 - d;
-                                       if(coeff<0) coeff=0;
-                               }
-                               else if(flags & SWS_SPLINE)
-                               {
-                                       double p=-2.196152422706632;
-                                       coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, d);
-                               }
-                               else {
-                                       coeff= 0.0; //GCC warning killer
-                                       ASSERT(0)
-                               }
-
-                               filter[i*filterSize + j]= coeff;
-                               xx++;
-                       }
-                       xDstInSrc+= xInc1;
-               }
-       }
-
-       /* apply src & dst Filter to filter -> filter2
-          av_free(filter);
-       */
-       ASSERT(filterSize>0)
-       filter2Size= filterSize;
-       if(srcFilter) filter2Size+= srcFilter->length - 1;
-       if(dstFilter) filter2Size+= dstFilter->length - 1;
-       ASSERT(filter2Size>0)
-       filter2= av_malloc(filter2Size*dstW*sizeof(double));
-
-       for(i=0; i<dstW; i++)
-       {
-               int j;
-               SwsVector scaleFilter;
-               SwsVector *outVec;
-
-               scaleFilter.coeff= filter + i*filterSize;
-               scaleFilter.length= filterSize;
-
-               if(srcFilter) outVec= sws_getConvVec(srcFilter, &scaleFilter);
-               else          outVec= &scaleFilter;
-
-               ASSERT(outVec->length == filter2Size)
-               //FIXME dstFilter
-
-               for(j=0; j<outVec->length; j++)
-               {
-                       filter2[i*filter2Size + j]= outVec->coeff[j];
-               }
-
-               (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
-
-               if(outVec != &scaleFilter) sws_freeVec(outVec);
-       }
-       av_free(filter); filter=NULL;
-
-       /* try to reduce the filter-size (step1 find size and shift left) */
-       // Assume its near normalized (*0.5 or *2.0 is ok but * 0.001 is not)
-       minFilterSize= 0;
-       for(i=dstW-1; i>=0; i--)
-       {
-               int min= filter2Size;
-               int j;
-               double cutOff=0.0;
-
-               /* get rid off near zero elements on the left by shifting left */
-               for(j=0; j<filter2Size; j++)
-               {
-                       int k;
-                       cutOff += FFABS(filter2[i*filter2Size]);
-
-                       if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
-
-                       /* preserve Monotonicity because the core can't handle the filter otherwise */
-                       if(i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
-
-                       // Move filter coeffs left
-                       for(k=1; k<filter2Size; k++)
-                               filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
-                       filter2[i*filter2Size + k - 1]= 0.0;
-                       (*filterPos)[i]++;
-               }
-
-               cutOff=0.0;
-               /* count near zeros on the right */
-               for(j=filter2Size-1; j>0; j--)
-               {
-                       cutOff += FFABS(filter2[i*filter2Size + j]);
-
-                       if(cutOff > SWS_MAX_REDUCE_CUTOFF) break;
-                       min--;
-               }
-
-               if(min>minFilterSize) minFilterSize= min;
-       }
-
-        if (flags & SWS_CPU_CAPS_ALTIVEC) {
-          // we can handle the special case 4,
-          // so we don't want to go to the full 8
-          if (minFilterSize < 5)
-            filterAlign = 4;
-
-          // we really don't want to waste our time
-          // doing useless computation, so fall-back on
-          // the scalar C code for very small filter.
-          // vectorizing is worth it only if you have
-          // decent-sized vector.
-          if (minFilterSize < 3)
-            filterAlign = 1;
-        }
-
-        if (flags & SWS_CPU_CAPS_MMX) {
-                // special case for unscaled vertical filtering
-                if(minFilterSize == 1 && filterAlign == 2)
-                        filterAlign= 1;
-        }
-
-       ASSERT(minFilterSize > 0)
-       filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
-       ASSERT(filterSize > 0)
-       filter= av_malloc(filterSize*dstW*sizeof(double));
-        if(filterSize >= MAX_FILTER_SIZE)
-                return -1;
-       *outFilterSize= filterSize;
-
-       if(flags&SWS_PRINT_INFO)
-               av_log(NULL, AV_LOG_VERBOSE, "SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
-       /* try to reduce the filter-size (step2 reduce it) */
-       for(i=0; i<dstW; i++)
-       {
-               int j;
-
-               for(j=0; j<filterSize; j++)
-               {
-                       if(j>=filter2Size) filter[i*filterSize + j]= 0.0;
-                       else               filter[i*filterSize + j]= filter2[i*filter2Size + j];
-               }
-       }
-       av_free(filter2); filter2=NULL;
-
-
-       //FIXME try to align filterpos if possible
-
-       //fix borders
-       for(i=0; i<dstW; i++)
-       {
-               int j;
-               if((*filterPos)[i] < 0)
-               {
-                       // Move filter coeffs left to compensate for filterPos
-                       for(j=1; j<filterSize; j++)
-                       {
-                               int left= FFMAX(j + (*filterPos)[i], 0);
-                               filter[i*filterSize + left] += filter[i*filterSize + j];
-                               filter[i*filterSize + j]=0;
-                       }
-                       (*filterPos)[i]= 0;
-               }
-
-               if((*filterPos)[i] + filterSize > srcW)
-               {
-                       int shift= (*filterPos)[i] + filterSize - srcW;
-                       // Move filter coeffs right to compensate for filterPos
-                       for(j=filterSize-2; j>=0; j--)
-                       {
-                               int right= FFMIN(j + shift, filterSize-1);
-                               filter[i*filterSize +right] += filter[i*filterSize +j];
-                               filter[i*filterSize +j]=0;
-                       }
-                       (*filterPos)[i]= srcW - filterSize;
-               }
-       }
-
-       // Note the +1 is for the MMXscaler which reads over the end
-       /* align at 16 for AltiVec (needed by hScale_altivec_real) */
-       *outFilter= av_mallocz(*outFilterSize*(dstW+1)*sizeof(int16_t));
-
-       /* Normalize & Store in outFilter */
-       for(i=0; i<dstW; i++)
-       {
-               int j;
-               double error=0;
-               double sum=0;
-               double scale= one;
-
-               for(j=0; j<filterSize; j++)
-               {
-                       sum+= filter[i*filterSize + j];
-               }
-               scale/= sum;
-               for(j=0; j<*outFilterSize; j++)
-               {
-                       double v= filter[i*filterSize + j]*scale + error;
-                       int intV= floor(v + 0.5);
-                       (*outFilter)[i*(*outFilterSize) + j]= intV;
-                       error = v - intV;
-               }
-       }
-
-       (*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
-       for(i=0; i<*outFilterSize; i++)
-       {
-               int j= dstW*(*outFilterSize);
-               (*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
-       }
-
-       av_free(filter);
-        return 0;
-}
-
-#ifdef COMPILE_MMX2
-static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode, int16_t *filter, int32_t *filterPos, int numSplits)
-{
-       uint8_t *fragmentA;
-       long imm8OfPShufW1A;
-       long imm8OfPShufW2A;
-       long fragmentLengthA;
-       uint8_t *fragmentB;
-       long imm8OfPShufW1B;
-       long imm8OfPShufW2B;
-       long fragmentLengthB;
-       int fragmentPos;
-
-       int xpos, i;
-
-       // create an optimized horizontal scaling routine
-
-       //code fragment
-
-       asm volatile(
-               "jmp 9f                         \n\t"
-       // Begin
-               "0:                             \n\t"
-               "movq (%%"REG_d", %%"REG_a"), %%mm3\n\t"
-               "movd (%%"REG_c", %%"REG_S"), %%mm0\n\t"
-               "movd 1(%%"REG_c", %%"REG_S"), %%mm1\n\t"
-               "punpcklbw %%mm7, %%mm1         \n\t"
-               "punpcklbw %%mm7, %%mm0         \n\t"
-               "pshufw $0xFF, %%mm1, %%mm1     \n\t"
-               "1:                             \n\t"
-               "pshufw $0xFF, %%mm0, %%mm0     \n\t"
-               "2:                             \n\t"
-               "psubw %%mm1, %%mm0             \n\t"
-               "movl 8(%%"REG_b", %%"REG_a"), %%esi\n\t"
-               "pmullw %%mm3, %%mm0            \n\t"
-               "psllw $7, %%mm1                \n\t"
-               "paddw %%mm1, %%mm0             \n\t"
-
-               "movq %%mm0, (%%"REG_D", %%"REG_a")\n\t"
-
-               "add $8, %%"REG_a"              \n\t"
-       // End
-               "9:                             \n\t"
-//             "int $3\n\t"
-               "lea 0b, %0                     \n\t"
-               "lea 1b, %1                     \n\t"
-               "lea 2b, %2                     \n\t"
-               "dec %1                         \n\t"
-               "dec %2                         \n\t"
-               "sub %0, %1                     \n\t"
-               "sub %0, %2                     \n\t"
-               "lea 9b, %3                     \n\t"
-               "sub %0, %3                     \n\t"
-
-
-               :"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
-               "=r" (fragmentLengthA)
-       );
-
-       asm volatile(
-               "jmp 9f                         \n\t"
-       // Begin
-               "0:                             \n\t"
-               "movq (%%"REG_d", %%"REG_a"), %%mm3\n\t"
-               "movd (%%"REG_c", %%"REG_S"), %%mm0\n\t"
-               "punpcklbw %%mm7, %%mm0         \n\t"
-               "pshufw $0xFF, %%mm0, %%mm1     \n\t"
-               "1:                             \n\t"
-               "pshufw $0xFF, %%mm0, %%mm0     \n\t"
-               "2:                             \n\t"
-               "psubw %%mm1, %%mm0             \n\t"
-               "movl 8(%%"REG_b", %%"REG_a"), %%esi\n\t"
-               "pmullw %%mm3, %%mm0            \n\t"
-               "psllw $7, %%mm1                \n\t"
-               "paddw %%mm1, %%mm0             \n\t"
-
-               "movq %%mm0, (%%"REG_D", %%"REG_a")\n\t"
-
-               "add $8, %%"REG_a"              \n\t"
-       // End
-               "9:                             \n\t"
-//             "int $3\n\t"
-               "lea 0b, %0                     \n\t"
-               "lea 1b, %1                     \n\t"
-               "lea 2b, %2                     \n\t"
-               "dec %1                         \n\t"
-               "dec %2                         \n\t"
-               "sub %0, %1                     \n\t"
-               "sub %0, %2                     \n\t"
-               "lea 9b, %3                     \n\t"
-               "sub %0, %3                     \n\t"
-
-
-               :"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
-               "=r" (fragmentLengthB)
-       );
-
-       xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
-       fragmentPos=0;
-
-       for(i=0; i<dstW/numSplits; i++)
-       {
-               int xx=xpos>>16;
-
-               if((i&3) == 0)
-               {
-                       int a=0;
-                       int b=((xpos+xInc)>>16) - xx;
-                       int c=((xpos+xInc*2)>>16) - xx;
-                       int d=((xpos+xInc*3)>>16) - xx;
-
-                       filter[i  ] = (( xpos         & 0xFFFF) ^ 0xFFFF)>>9;
-                       filter[i+1] = (((xpos+xInc  ) & 0xFFFF) ^ 0xFFFF)>>9;
-                       filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
-                       filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
-                       filterPos[i/2]= xx;
-
-                       if(d+1<4)
-                       {
-                               int maxShift= 3-(d+1);
-                               int shift=0;
-
-                               memcpy(funnyCode + fragmentPos, fragmentB, fragmentLengthB);
-
-                               funnyCode[fragmentPos + imm8OfPShufW1B]=
-                                       (a+1) | ((b+1)<<2) | ((c+1)<<4) | ((d+1)<<6);
-                               funnyCode[fragmentPos + imm8OfPShufW2B]=
-                                       a | (b<<2) | (c<<4) | (d<<6);
-
-                               if(i+3>=dstW) shift=maxShift; //avoid overread
-                               else if((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
-
-                               if(shift && i>=shift)
-                               {
-                                       funnyCode[fragmentPos + imm8OfPShufW1B]+= 0x55*shift;
-                                       funnyCode[fragmentPos + imm8OfPShufW2B]+= 0x55*shift;
-                                       filterPos[i/2]-=shift;
-                               }
-
-                               fragmentPos+= fragmentLengthB;
-                       }
-                       else
-                       {
-                               int maxShift= 3-d;
-                               int shift=0;
-
-                               memcpy(funnyCode + fragmentPos, fragmentA, fragmentLengthA);
-
-                               funnyCode[fragmentPos + imm8OfPShufW1A]=
-                               funnyCode[fragmentPos + imm8OfPShufW2A]=
-                                       a | (b<<2) | (c<<4) | (d<<6);
-
-                               if(i+4>=dstW) shift=maxShift; //avoid overread
-                               else if((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //partial align
-
-                               if(shift && i>=shift)
-                               {
-                                       funnyCode[fragmentPos + imm8OfPShufW1A]+= 0x55*shift;
-                                       funnyCode[fragmentPos + imm8OfPShufW2A]+= 0x55*shift;
-                                       filterPos[i/2]-=shift;
-                               }
-
-                               fragmentPos+= fragmentLengthA;
-                       }
-
-                       funnyCode[fragmentPos]= RET;
-               }
-               xpos+=xInc;
-       }
-       filterPos[i/2]= xpos>>16; // needed to jump to the next part
-}
-#endif /* COMPILE_MMX2 */
-
-static void globalInit(void){
-    // generating tables:
-    int i;
-    for(i=0; i<768; i++){
-       int c= av_clip_uint8(i-256);
-       clip_table[i]=c;
-    }
-}
-
-static SwsFunc getSwsFunc(int flags){
-
-#if defined(RUNTIME_CPUDETECT) && defined (CONFIG_GPL)
-#if defined(ARCH_X86)
-       // ordered per speed fasterst first
-       if(flags & SWS_CPU_CAPS_MMX2)
-               return swScale_MMX2;
-       else if(flags & SWS_CPU_CAPS_3DNOW)
-               return swScale_3DNow;
-       else if(flags & SWS_CPU_CAPS_MMX)
-               return swScale_MMX;
-       else
-               return swScale_C;
-
-#else
-#ifdef ARCH_POWERPC
-       if(flags & SWS_CPU_CAPS_ALTIVEC)
-         return swScale_altivec;
-       else
-         return swScale_C;
-#endif
-       return swScale_C;
-#endif /* defined(ARCH_X86) */
-#else //RUNTIME_CPUDETECT
-#ifdef HAVE_MMX2
-       return swScale_MMX2;
-#elif defined (HAVE_3DNOW)
-       return swScale_3DNow;
-#elif defined (HAVE_MMX)
-       return swScale_MMX;
-#elif defined (HAVE_ALTIVEC)
-       return swScale_altivec;
-#else
-       return swScale_C;
-#endif
-#endif //!RUNTIME_CPUDETECT
-}
-
-static int PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dstParam[], int dstStride[]){
-       uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
-       /* Copy Y plane */
-       if(dstStride[0]==srcStride[0] && srcStride[0] > 0)
-               memcpy(dst, src[0], srcSliceH*dstStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst;
-               for(i=0; i<srcSliceH; i++)
-               {
-                       memcpy(dstPtr, srcPtr, c->srcW);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }
-       dst = dstParam[1] + dstStride[1]*srcSliceY/2;
-       if (c->dstFormat == PIX_FMT_NV12)
-               interleaveBytes( src[1],src[2],dst,c->srcW/2,srcSliceH/2,srcStride[1],srcStride[2],dstStride[0] );
-       else
-               interleaveBytes( src[2],src[1],dst,c->srcW/2,srcSliceH/2,srcStride[2],srcStride[1],dstStride[0] );
-
-       return srcSliceH;
-}
-
-static int PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dstParam[], int dstStride[]){
-       uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
-
-       yv12toyuy2( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
-
-       return srcSliceH;
-}
-
-static int PlanarToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dstParam[], int dstStride[]){
-       uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
-
-       yv12touyvy( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
-
-       return srcSliceH;
-}
-
-/* {RGB,BGR}{15,16,24,32} -> {RGB,BGR}{15,16,24,32} */
-static int rgb2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-                          int srcSliceH, uint8_t* dst[], int dstStride[]){
-       const int srcFormat= c->srcFormat;
-       const int dstFormat= c->dstFormat;
-       const int srcBpp= (fmt_depth(srcFormat) + 7) >> 3;
-       const int dstBpp= (fmt_depth(dstFormat) + 7) >> 3;
-       const int srcId= fmt_depth(srcFormat) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
-       const int dstId= fmt_depth(dstFormat) >> 2;
-       void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
-
-       /* BGR -> BGR */
-       if(   (isBGR(srcFormat) && isBGR(dstFormat))
-          || (isRGB(srcFormat) && isRGB(dstFormat))){
-               switch(srcId | (dstId<<4)){
-               case 0x34: conv= rgb16to15; break;
-               case 0x36: conv= rgb24to15; break;
-               case 0x38: conv= rgb32to15; break;
-               case 0x43: conv= rgb15to16; break;
-               case 0x46: conv= rgb24to16; break;
-               case 0x48: conv= rgb32to16; break;
-               case 0x63: conv= rgb15to24; break;
-               case 0x64: conv= rgb16to24; break;
-               case 0x68: conv= rgb32to24; break;
-               case 0x83: conv= rgb15to32; break;
-               case 0x84: conv= rgb16to32; break;
-               case 0x86: conv= rgb24to32; break;
-               default: av_log(c, AV_LOG_ERROR, "swScaler: internal error %s -> %s converter\n",
-                                sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
-               }
-       }else if(   (isBGR(srcFormat) && isRGB(dstFormat))
-                || (isRGB(srcFormat) && isBGR(dstFormat))){
-               switch(srcId | (dstId<<4)){
-               case 0x33: conv= rgb15tobgr15; break;
-               case 0x34: conv= rgb16tobgr15; break;
-               case 0x36: conv= rgb24tobgr15; break;
-               case 0x38: conv= rgb32tobgr15; break;
-               case 0x43: conv= rgb15tobgr16; break;
-               case 0x44: conv= rgb16tobgr16; break;
-               case 0x46: conv= rgb24tobgr16; break;
-               case 0x48: conv= rgb32tobgr16; break;
-               case 0x63: conv= rgb15tobgr24; break;
-               case 0x64: conv= rgb16tobgr24; break;
-               case 0x66: conv= rgb24tobgr24; break;
-               case 0x68: conv= rgb32tobgr24; break;
-               case 0x83: conv= rgb15tobgr32; break;
-               case 0x84: conv= rgb16tobgr32; break;
-               case 0x86: conv= rgb24tobgr32; break;
-               case 0x88: conv= rgb32tobgr32; break;
-               default: av_log(c, AV_LOG_ERROR, "swScaler: internal error %s -> %s converter\n",
-                                sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
-               }
-       }else{
-               av_log(c, AV_LOG_ERROR, "swScaler: internal error %s -> %s converter\n",
-                        sws_format_name(srcFormat), sws_format_name(dstFormat));
-       }
-
-       if(dstStride[0]*srcBpp == srcStride[0]*dstBpp)
-               conv(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
-       else
-       {
-               int i;
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       conv(srcPtr, dstPtr, c->srcW*srcBpp);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }
-       return srcSliceH;
-}
-
-static int bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-
-       rgb24toyv12(
-               src[0],
-               dst[0]+ srcSliceY    *dstStride[0],
-               dst[1]+(srcSliceY>>1)*dstStride[1],
-               dst[2]+(srcSliceY>>1)*dstStride[2],
-               c->srcW, srcSliceH,
-               dstStride[0], dstStride[1], srcStride[0]);
-       return srcSliceH;
-}
-
-static int yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-       int i;
-
-       /* copy Y */
-       if(srcStride[0]==dstStride[0] && srcStride[0] > 0)
-               memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
-       else{
-               uint8_t *srcPtr= src[0];
-               uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
-               for(i=0; i<srcSliceH; i++)
-               {
-                       memcpy(dstPtr, srcPtr, c->srcW);
-                       srcPtr+= srcStride[0];
-                       dstPtr+= dstStride[0];
-               }
-       }
-
-       if(c->dstFormat==PIX_FMT_YUV420P){
-               planar2x(src[1], dst[1], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[1]);
-               planar2x(src[2], dst[2], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[2]);
-       }else{
-               planar2x(src[1], dst[2], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[2]);
-               planar2x(src[2], dst[1], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[1]);
-       }
-       return srcSliceH;
-}
-
-/* unscaled copy like stuff (assumes nearly identical formats) */
-static int simpleCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-
-       if(isPacked(c->srcFormat))
-       {
-               if(dstStride[0]==srcStride[0] && srcStride[0] > 0)
-                       memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
-               else
-               {
-                       int i;
-                       uint8_t *srcPtr= src[0];
-                       uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-                       int length=0;
-
-                       /* universal length finder */
-                       while(length+c->srcW <= FFABS(dstStride[0])
-                          && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
-                       ASSERT(length!=0);
-
-                       for(i=0; i<srcSliceH; i++)
-                       {
-                               memcpy(dstPtr, srcPtr, length);
-                               srcPtr+= srcStride[0];
-                               dstPtr+= dstStride[0];
-                       }
-               }
-       }
-       else
-       { /* Planar YUV or gray */
-               int plane;
-               for(plane=0; plane<3; plane++)
-               {
-                       int length= plane==0 ? c->srcW  : -((-c->srcW  )>>c->chrDstHSubSample);
-                       int y=      plane==0 ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
-                       int height= plane==0 ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
-
-                       if((isGray(c->srcFormat) || isGray(c->dstFormat)) && plane>0)
-                       {
-                               if(!isGray(c->dstFormat))
-                                       memset(dst[plane], 128, dstStride[plane]*height);
-                       }
-                       else
-                       {
-                               if(dstStride[plane]==srcStride[plane] && srcStride[plane] > 0)
-                                       memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
-                               else
-                               {
-                                       int i;
-                                       uint8_t *srcPtr= src[plane];
-                                       uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
-                                       for(i=0; i<height; i++)
-                                       {
-                                               memcpy(dstPtr, srcPtr, length);
-                                               srcPtr+= srcStride[plane];
-                                               dstPtr+= dstStride[plane];
-                                       }
-                               }
-                       }
-               }
-       }
-       return srcSliceH;
-}
-
-static int gray16togray(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-
-       int length= c->srcW;
-       int y=      srcSliceY;
-       int height= srcSliceH;
-       int i, j;
-       uint8_t *srcPtr= src[0];
-       uint8_t *dstPtr= dst[0] + dstStride[0]*y;
-
-       if(!isGray(c->dstFormat)){
-               int height= -((-srcSliceH)>>c->chrDstVSubSample);
-               memset(dst[1], 128, dstStride[1]*height);
-               memset(dst[2], 128, dstStride[2]*height);
-       }
-       if(c->srcFormat == PIX_FMT_GRAY16LE) srcPtr++;
-       for(i=0; i<height; i++)
-       {
-               for(j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
-               srcPtr+= srcStride[0];
-               dstPtr+= dstStride[0];
-       }
-       return srcSliceH;
-}
-
-static int graytogray16(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-
-       int length= c->srcW;
-       int y=      srcSliceY;
-       int height= srcSliceH;
-       int i, j;
-       uint8_t *srcPtr= src[0];
-       uint8_t *dstPtr= dst[0] + dstStride[0]*y;
-       for(i=0; i<height; i++)
-       {
-               for(j=0; j<length; j++)
-               {
-                       dstPtr[j<<1] = srcPtr[j];
-                       dstPtr[(j<<1)+1] = srcPtr[j];
-               }
-               srcPtr+= srcStride[0];
-               dstPtr+= dstStride[0];
-       }
-       return srcSliceH;
-}
-
-static int gray16swap(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-             int srcSliceH, uint8_t* dst[], int dstStride[]){
-
-       int length= c->srcW;
-       int y=      srcSliceY;
-       int height= srcSliceH;
-       int i, j;
-       uint16_t *srcPtr= src[0];
-       uint16_t *dstPtr= dst[0] + dstStride[0]*y/2;
-       for(i=0; i<height; i++)
-       {
-               for(j=0; j<length; j++) dstPtr[j] = bswap_16(srcPtr[j]);
-               srcPtr+= srcStride[0]/2;
-               dstPtr+= dstStride[0]/2;
-       }
-       return srcSliceH;
-}
-
-
-static void getSubSampleFactors(int *h, int *v, int format){
-       switch(format){
-       case PIX_FMT_UYVY422:
-       case PIX_FMT_YUYV422:
-               *h=1;
-               *v=0;
-               break;
-       case PIX_FMT_YUV420P:
-       case PIX_FMT_GRAY16BE:
-       case PIX_FMT_GRAY16LE:
-       case PIX_FMT_GRAY8: //FIXME remove after different subsamplings are fully implemented
-       case PIX_FMT_NV12:
-       case PIX_FMT_NV21:
-               *h=1;
-               *v=1;
-               break;
-       case PIX_FMT_YUV410P:
-               *h=2;
-               *v=2;
-               break;
-       case PIX_FMT_YUV444P:
-               *h=0;
-               *v=0;
-               break;
-       case PIX_FMT_YUV422P:
-               *h=1;
-               *v=0;
-               break;
-       case PIX_FMT_YUV411P:
-               *h=2;
-               *v=0;
-               break;
-       default:
-               *h=0;
-               *v=0;
-               break;
-       }
-}
-
-static uint16_t roundToInt16(int64_t f){
-       int r= (f + (1<<15))>>16;
-            if(r<-0x7FFF) return 0x8000;
-       else if(r> 0x7FFF) return 0x7FFF;
-       else               return r;
-}
-
-/**
- * @param inv_table the yuv2rgb coeffs, normally Inverse_Table_6_9[x]
- * @param fullRange if 1 then the luma range is 0..255 if 0 its 16..235
- * @return -1 if not supported
- */
-int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation){
-       int64_t crv =  inv_table[0];
-       int64_t cbu =  inv_table[1];
-       int64_t cgu = -inv_table[2];
-       int64_t cgv = -inv_table[3];
-       int64_t cy  = 1<<16;
-       int64_t oy  = 0;
-
-       if(isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
-       memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
-       memcpy(c->dstColorspaceTable,     table, sizeof(int)*4);
-
-       c->brightness= brightness;
-       c->contrast  = contrast;
-       c->saturation= saturation;
-       c->srcRange  = srcRange;
-       c->dstRange  = dstRange;
-
-       c->uOffset=   0x0400040004000400LL;
-       c->vOffset=   0x0400040004000400LL;
-
-       if(!srcRange){
-               cy= (cy*255) / 219;
-               oy= 16<<16;
-       }else{
-                crv= (crv*224) / 255;
-                cbu= (cbu*224) / 255;
-                cgu= (cgu*224) / 255;
-                cgv= (cgv*224) / 255;
-        }
-
-       cy = (cy *contrast             )>>16;
-       crv= (crv*contrast * saturation)>>32;
-       cbu= (cbu*contrast * saturation)>>32;
-       cgu= (cgu*contrast * saturation)>>32;
-       cgv= (cgv*contrast * saturation)>>32;
-
-       oy -= 256*brightness;
-
-       c->yCoeff=    roundToInt16(cy *8192) * 0x0001000100010001ULL;
-       c->vrCoeff=   roundToInt16(crv*8192) * 0x0001000100010001ULL;
-       c->ubCoeff=   roundToInt16(cbu*8192) * 0x0001000100010001ULL;
-       c->vgCoeff=   roundToInt16(cgv*8192) * 0x0001000100010001ULL;
-       c->ugCoeff=   roundToInt16(cgu*8192) * 0x0001000100010001ULL;
-       c->yOffset=   roundToInt16(oy *   8) * 0x0001000100010001ULL;
-
-       yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
-       //FIXME factorize
-
-#ifdef COMPILE_ALTIVEC
-       if (c->flags & SWS_CPU_CAPS_ALTIVEC)
-           yuv2rgb_altivec_init_tables (c, inv_table, brightness, contrast, saturation);
-#endif
-       return 0;
-}
-
-/**
- * @return -1 if not supported
- */
-int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation){
-       if(isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
-
-       *inv_table = c->srcColorspaceTable;
-       *table     = c->dstColorspaceTable;
-       *srcRange  = c->srcRange;
-       *dstRange  = c->dstRange;
-       *brightness= c->brightness;
-       *contrast  = c->contrast;
-       *saturation= c->saturation;
-
-       return 0;
-}
-
-static int handle_jpeg(int *format)
-{
-       switch (*format) {
-               case PIX_FMT_YUVJ420P:
-                       *format = PIX_FMT_YUV420P;
-                       return 1;
-               case PIX_FMT_YUVJ422P:
-                       *format = PIX_FMT_YUV422P;
-                       return 1;
-               case PIX_FMT_YUVJ444P:
-                       *format = PIX_FMT_YUV444P;
-                       return 1;
-               default:
-                       return 0;
-       }
-}
-
-SwsContext *sws_getContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
-                         SwsFilter *srcFilter, SwsFilter *dstFilter, double *param){
-
-       SwsContext *c;
-       int i;
-       int usesVFilter, usesHFilter;
-       int unscaled, needsDither;
-       int srcRange, dstRange;
-       SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
-#if defined(ARCH_X86)
-       if(flags & SWS_CPU_CAPS_MMX)
-               asm volatile("emms\n\t"::: "memory");
-#endif
-
-#if !defined(RUNTIME_CPUDETECT) || !defined (CONFIG_GPL) //ensure that the flags match the compiled variant if cpudetect is off
-       flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC);
-#ifdef HAVE_MMX2
-       flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
-#elif defined (HAVE_3DNOW)
-       flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
-#elif defined (HAVE_MMX)
-       flags |= SWS_CPU_CAPS_MMX;
-#elif defined (HAVE_ALTIVEC)
-       flags |= SWS_CPU_CAPS_ALTIVEC;
-#endif
-#endif /* RUNTIME_CPUDETECT */
-       if(clip_table[512] != 255) globalInit();
-       if(rgb15to16 == NULL) sws_rgb2rgb_init(flags);
-
-       unscaled = (srcW == dstW && srcH == dstH);
-       needsDither= (isBGR(dstFormat) || isRGB(dstFormat))
-                    && (fmt_depth(dstFormat))<24
-                    && ((fmt_depth(dstFormat))<(fmt_depth(srcFormat)) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
-
-       srcRange = handle_jpeg(&srcFormat);
-       dstRange = handle_jpeg(&dstFormat);
-
-       if(!isSupportedIn(srcFormat))
-       {
-               av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as input format\n", sws_format_name(srcFormat));
-               return NULL;
-       }
-       if(!isSupportedOut(dstFormat))
-       {
-               av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as output format\n", sws_format_name(dstFormat));
-               return NULL;
-       }
-
-       /* sanity check */
-       if(srcW<4 || srcH<1 || dstW<8 || dstH<1) //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
-       {
-                av_log(NULL, AV_LOG_ERROR, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
-                       srcW, srcH, dstW, dstH);
-               return NULL;
-       }
-
-       if(!dstFilter) dstFilter= &dummyFilter;
-       if(!srcFilter) srcFilter= &dummyFilter;
-
-       c= av_mallocz(sizeof(SwsContext));
-
-       c->av_class = &sws_context_class;
-       c->srcW= srcW;
-       c->srcH= srcH;
-       c->dstW= dstW;
-       c->dstH= dstH;
-       c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW;
-       c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH;
-       c->flags= flags;
-       c->dstFormat= dstFormat;
-       c->srcFormat= srcFormat;
-        c->vRounder= 4* 0x0001000100010001ULL;
-
-       usesHFilter= usesVFilter= 0;
-       if(dstFilter->lumV!=NULL && dstFilter->lumV->length>1) usesVFilter=1;
-       if(dstFilter->lumH!=NULL && dstFilter->lumH->length>1) usesHFilter=1;
-       if(dstFilter->chrV!=NULL && dstFilter->chrV->length>1) usesVFilter=1;
-       if(dstFilter->chrH!=NULL && dstFilter->chrH->length>1) usesHFilter=1;
-       if(srcFilter->lumV!=NULL && srcFilter->lumV->length>1) usesVFilter=1;
-       if(srcFilter->lumH!=NULL && srcFilter->lumH->length>1) usesHFilter=1;
-       if(srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesVFilter=1;
-       if(srcFilter->chrH!=NULL && srcFilter->chrH->length>1) usesHFilter=1;
-
-       getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
-       getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
-
-       // reuse chroma for 2 pixles rgb/bgr unless user wants full chroma interpolation
-       if((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
-
-       // drop some chroma lines if the user wants it
-       c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
-       c->chrSrcVSubSample+= c->vChrDrop;
-
-       // drop every 2. pixel for chroma calculation unless user wants full chroma
-       if((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP)
-           && srcFormat!=PIX_FMT_RGB8      && srcFormat!=PIX_FMT_BGR8
-           && srcFormat!=PIX_FMT_RGB4      && srcFormat!=PIX_FMT_BGR4
-           && srcFormat!=PIX_FMT_RGB4_BYTE && srcFormat!=PIX_FMT_BGR4_BYTE)
-               c->chrSrcHSubSample=1;
-
-       if(param){
-               c->param[0] = param[0];
-               c->param[1] = param[1];
-       }else{
-               c->param[0] =
-               c->param[1] = SWS_PARAM_DEFAULT;
-       }
-
-       c->chrIntHSubSample= c->chrDstHSubSample;
-       c->chrIntVSubSample= c->chrSrcVSubSample;
-
-       // Note the -((-x)>>y) is so that we always round toward +inf.
-       c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
-       c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
-       c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
-       c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
-
-       sws_setColorspaceDetails(c, Inverse_Table_6_9[SWS_CS_DEFAULT], srcRange, Inverse_Table_6_9[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16);
-
-       /* unscaled special Cases */
-       if(unscaled && !usesHFilter && !usesVFilter)
-       {
-               /* yv12_to_nv12 */
-               if(srcFormat == PIX_FMT_YUV420P && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21))
-               {
-                       c->swScale= PlanarToNV12Wrapper;
-               }
-#ifdef CONFIG_GPL
-               /* yuv2bgr */
-               if((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P) && (isBGR(dstFormat) || isRGB(dstFormat)))
-               {
-                       c->swScale= yuv2rgb_get_func_ptr(c);
-               }
-#endif
-
-               if( srcFormat==PIX_FMT_YUV410P && dstFormat==PIX_FMT_YUV420P )
-               {
-                       c->swScale= yvu9toyv12Wrapper;
-               }
-
-               /* bgr24toYV12 */
-               if(srcFormat==PIX_FMT_BGR24 && dstFormat==PIX_FMT_YUV420P)
-                       c->swScale= bgr24toyv12Wrapper;
-
-               /* rgb/bgr -> rgb/bgr (no dither needed forms) */
-               if(   (isBGR(srcFormat) || isRGB(srcFormat))
-                  && (isBGR(dstFormat) || isRGB(dstFormat))
-                  && srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
-                  && srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
-                  && srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
-                  && srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
-                  && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
-                  && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
-                  && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
-                  && !needsDither)
-                       c->swScale= rgb2rgbWrapper;
-
-               /* LQ converters if -sws 0 or -sws 4*/
-               if(c->flags&(SWS_FAST_BILINEAR|SWS_POINT)){
-                       /* rgb/bgr -> rgb/bgr (dither needed forms) */
-                       if(  (isBGR(srcFormat) || isRGB(srcFormat))
-                         && (isBGR(dstFormat) || isRGB(dstFormat))
-                         && needsDither)
-                               c->swScale= rgb2rgbWrapper;
-
-                       /* yv12_to_yuy2 */
-                       if(srcFormat == PIX_FMT_YUV420P &&
-                           (dstFormat == PIX_FMT_YUYV422 || dstFormat == PIX_FMT_UYVY422))
-                       {
-                               if (dstFormat == PIX_FMT_YUYV422)
-                                   c->swScale= PlanarToYuy2Wrapper;
-                               else
-                                   c->swScale= PlanarToUyvyWrapper;
-                       }
-               }
-
-#ifdef COMPILE_ALTIVEC
-               if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
-                   ((srcFormat == PIX_FMT_YUV420P &&
-                     (dstFormat == PIX_FMT_YUYV422 || dstFormat == PIX_FMT_UYVY422)))) {
-                 // unscaled YV12 -> packed YUV, we want speed
-                 if (dstFormat == PIX_FMT_YUYV422)
-                   c->swScale= yv12toyuy2_unscaled_altivec;
-                 else
-                   c->swScale= yv12touyvy_unscaled_altivec;
-               }
-#endif
-
-               /* simple copy */
-               if(   srcFormat == dstFormat
-                  || (isPlanarYUV(srcFormat) && isGray(dstFormat))
-                  || (isPlanarYUV(dstFormat) && isGray(srcFormat))
-                 )
-               {
-                       c->swScale= simpleCopy;
-               }
-
-               /* gray16{le,be} conversions */
-               if(isGray16(srcFormat) && (isPlanarYUV(dstFormat) || (dstFormat == PIX_FMT_GRAY8)))
-               {
-                       c->swScale= gray16togray;
-               }
-               if((isPlanarYUV(srcFormat) || (srcFormat == PIX_FMT_GRAY8)) && isGray16(dstFormat))
-               {
-                       c->swScale= graytogray16;
-               }
-               if(srcFormat != dstFormat && isGray16(srcFormat) && isGray16(dstFormat))
-               {
-                       c->swScale= gray16swap;
-               }
-
-               if(c->swScale){
-                       if(flags&SWS_PRINT_INFO)
-                               av_log(c, AV_LOG_INFO, "SwScaler: using unscaled %s -> %s special converter\n",
-                                       sws_format_name(srcFormat), sws_format_name(dstFormat));
-                       return c;
-               }
-       }
-
-       if(flags & SWS_CPU_CAPS_MMX2)
-       {
-               c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
-               if(!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR))
-               {
-                       if(flags&SWS_PRINT_INFO)
-                               av_log(c, AV_LOG_INFO, "SwScaler: output Width is not a multiple of 32 -> no MMX2 scaler\n");
-               }
-               if(usesHFilter) c->canMMX2BeUsed=0;
-       }
-       else
-               c->canMMX2BeUsed=0;
-
-       c->chrXInc= ((c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
-       c->chrYInc= ((c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
-
-       // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
-       // but only for the FAST_BILINEAR mode otherwise do correct scaling
-       // n-2 is the last chrominance sample available
-       // this is not perfect, but noone shuld notice the difference, the more correct variant
-       // would be like the vertical one, but that would require some special code for the
-       // first and last pixel
-       if(flags&SWS_FAST_BILINEAR)
-       {
-               if(c->canMMX2BeUsed)
-               {
-                       c->lumXInc+= 20;
-                       c->chrXInc+= 20;
-               }
-               //we don't use the x86asm scaler if mmx is available
-               else if(flags & SWS_CPU_CAPS_MMX)
-               {
-                       c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
-                       c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
-               }
-       }
-
-       /* precalculate horizontal scaler filter coefficients */
-       {
-               const int filterAlign=
-                 (flags & SWS_CPU_CAPS_MMX) ? 4 :
-                 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
-                 1;
-
-               initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
-                                srcW      ,       dstW, filterAlign, 1<<14,
-                                (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC)  : flags,
-                                srcFilter->lumH, dstFilter->lumH, c->param);
-               initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
-                                c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
-                                (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
-                                srcFilter->chrH, dstFilter->chrH, c->param);
-
-#define MAX_FUNNY_CODE_SIZE 10000
-#if defined(COMPILE_MMX2)
-// can't downscale !!!
-               if(c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
-               {
-#ifdef MAP_ANONYMOUS
-                       c->funnyYCode = (uint8_t*)mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
-                       c->funnyUVCode = (uint8_t*)mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
-#else
-                       c->funnyYCode = av_malloc(MAX_FUNNY_CODE_SIZE);
-                       c->funnyUVCode = av_malloc(MAX_FUNNY_CODE_SIZE);
-#endif
-
-                       c->lumMmx2Filter   = av_malloc((dstW        /8+8)*sizeof(int16_t));
-                       c->chrMmx2Filter   = av_malloc((c->chrDstW  /4+8)*sizeof(int16_t));
-                       c->lumMmx2FilterPos= av_malloc((dstW      /2/8+8)*sizeof(int32_t));
-                       c->chrMmx2FilterPos= av_malloc((c->chrDstW/2/4+8)*sizeof(int32_t));
-
-                       initMMX2HScaler(      dstW, c->lumXInc, c->funnyYCode , c->lumMmx2Filter, c->lumMmx2FilterPos, 8);
-                       initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
-               }
-#endif /* defined(COMPILE_MMX2) */
-       } // Init Horizontal stuff
-
-
-
-       /* precalculate vertical scaler filter coefficients */
-       {
-               const int filterAlign=
-                 (flags & SWS_CPU_CAPS_MMX) && (flags & SWS_ACCURATE_RND) ? 2 :
-                 (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
-                 1;
-
-               initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
-                               srcH      ,        dstH, filterAlign, (1<<12)-4,
-                               (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC)  : flags,
-                               srcFilter->lumV, dstFilter->lumV, c->param);
-               initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
-                               c->chrSrcH, c->chrDstH, filterAlign, (1<<12)-4,
-                               (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
-                               srcFilter->chrV, dstFilter->chrV, c->param);
-
-#ifdef HAVE_ALTIVEC
-               c->vYCoeffsBank = av_malloc(sizeof (vector signed short)*c->vLumFilterSize*c->dstH);
-               c->vCCoeffsBank = av_malloc(sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH);
-
-               for (i=0;i<c->vLumFilterSize*c->dstH;i++) {
-                  int j;
-                 short *p = (short *)&c->vYCoeffsBank[i];
-                 for (j=0;j<8;j++)
-                   p[j] = c->vLumFilter[i];
-               }
-
-               for (i=0;i<c->vChrFilterSize*c->chrDstH;i++) {
-                  int j;
-                 short *p = (short *)&c->vCCoeffsBank[i];
-                 for (j=0;j<8;j++)
-                   p[j] = c->vChrFilter[i];
-               }
-#endif
-       }
-
-       // Calculate Buffer Sizes so that they won't run out while handling these damn slices
-       c->vLumBufSize= c->vLumFilterSize;
-       c->vChrBufSize= c->vChrFilterSize;
-       for(i=0; i<dstH; i++)
-       {
-               int chrI= i*c->chrDstH / dstH;
-               int nextSlice= FFMAX(c->vLumFilterPos[i   ] + c->vLumFilterSize - 1,
-                                ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
-
-               nextSlice>>= c->chrSrcVSubSample;
-               nextSlice<<= c->chrSrcVSubSample;
-               if(c->vLumFilterPos[i   ] + c->vLumBufSize < nextSlice)
-                       c->vLumBufSize= nextSlice - c->vLumFilterPos[i   ];
-               if(c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
-                       c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
-       }
-
-       // allocate pixbufs (we use dynamic allocation because otherwise we would need to
-       c->lumPixBuf= av_malloc(c->vLumBufSize*2*sizeof(int16_t*));
-       c->chrPixBuf= av_malloc(c->vChrBufSize*2*sizeof(int16_t*));
-       //Note we need at least one pixel more at the end because of the mmx code (just in case someone wanna replace the 4000/8000)
-       /* align at 16 bytes for AltiVec */
-       for(i=0; i<c->vLumBufSize; i++)
-               c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= av_mallocz(4000);
-       for(i=0; i<c->vChrBufSize; i++)
-               c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= av_malloc(8000);
-
-       //try to avoid drawing green stuff between the right end and the stride end
-       for(i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, 8000);
-
-       ASSERT(c->chrDstH <= dstH)
-
-       if(flags&SWS_PRINT_INFO)
-       {
-#ifdef DITHER1XBPP
-               char *dither= " dithered";
-#else
-               char *dither= "";
-#endif
-               if(flags&SWS_FAST_BILINEAR)
-                       av_log(c, AV_LOG_INFO, "SwScaler: FAST_BILINEAR scaler, ");
-               else if(flags&SWS_BILINEAR)
-                       av_log(c, AV_LOG_INFO, "SwScaler: BILINEAR scaler, ");
-               else if(flags&SWS_BICUBIC)
-                       av_log(c, AV_LOG_INFO, "SwScaler: BICUBIC scaler, ");
-               else if(flags&SWS_X)
-                       av_log(c, AV_LOG_INFO, "SwScaler: Experimental scaler, ");
-               else if(flags&SWS_POINT)
-                       av_log(c, AV_LOG_INFO, "SwScaler: Nearest Neighbor / POINT scaler, ");
-               else if(flags&SWS_AREA)
-                       av_log(c, AV_LOG_INFO, "SwScaler: Area Averageing scaler, ");
-               else if(flags&SWS_BICUBLIN)
-                       av_log(c, AV_LOG_INFO, "SwScaler: luma BICUBIC / chroma BILINEAR scaler, ");
-               else if(flags&SWS_GAUSS)
-                       av_log(c, AV_LOG_INFO, "SwScaler: Gaussian scaler, ");
-               else if(flags&SWS_SINC)
-                       av_log(c, AV_LOG_INFO, "SwScaler: Sinc scaler, ");
-               else if(flags&SWS_LANCZOS)
-                       av_log(c, AV_LOG_INFO, "SwScaler: Lanczos scaler, ");
-               else if(flags&SWS_SPLINE)
-                       av_log(c, AV_LOG_INFO, "SwScaler: Bicubic spline scaler, ");
-               else
-                       av_log(c, AV_LOG_INFO, "SwScaler: ehh flags invalid?! ");
-
-               if(dstFormat==PIX_FMT_BGR555 || dstFormat==PIX_FMT_BGR565)
-                       av_log(c, AV_LOG_INFO, "from %s to%s %s ",
-                               sws_format_name(srcFormat), dither, sws_format_name(dstFormat));
-               else
-                       av_log(c, AV_LOG_INFO, "from %s to %s ",
-                               sws_format_name(srcFormat), sws_format_name(dstFormat));
-
-               if(flags & SWS_CPU_CAPS_MMX2)
-                       av_log(c, AV_LOG_INFO, "using MMX2\n");
-               else if(flags & SWS_CPU_CAPS_3DNOW)
-                       av_log(c, AV_LOG_INFO, "using 3DNOW\n");
-               else if(flags & SWS_CPU_CAPS_MMX)
-                       av_log(c, AV_LOG_INFO, "using MMX\n");
-               else if(flags & SWS_CPU_CAPS_ALTIVEC)
-                       av_log(c, AV_LOG_INFO, "using AltiVec\n");
-               else
-                       av_log(c, AV_LOG_INFO, "using C\n");
-       }
-
-       if(flags & SWS_PRINT_INFO)
-       {
-               if(flags & SWS_CPU_CAPS_MMX)
-               {
-                       if(c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
-                               av_log(c, AV_LOG_VERBOSE, "SwScaler: using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
-                       else
-                       {
-                               if(c->hLumFilterSize==4)
-                                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using 4-tap MMX scaler for horizontal luminance scaling\n");
-                               else if(c->hLumFilterSize==8)
-                                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using 8-tap MMX scaler for horizontal luminance scaling\n");
-                               else
-                                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap MMX scaler for horizontal luminance scaling\n");
-
-                               if(c->hChrFilterSize==4)
-                                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling\n");
-                               else if(c->hChrFilterSize==8)
-                                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using 8-tap MMX scaler for horizontal chrominance scaling\n");
-                               else
-                                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap MMX scaler for horizontal chrominance scaling\n");
-                       }
-               }
-               else
-               {
-#if defined(ARCH_X86)
-                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using X86-Asm scaler for horizontal scaling\n");
-#else
-                       if(flags & SWS_FAST_BILINEAR)
-                               av_log(c, AV_LOG_VERBOSE, "SwScaler: using FAST_BILINEAR C scaler for horizontal scaling\n");
-                       else
-                               av_log(c, AV_LOG_VERBOSE, "SwScaler: using C scaler for horizontal scaling\n");
-#endif
-               }
-               if(isPlanarYUV(dstFormat))
-               {
-                       if(c->vLumFilterSize==1)
-                               av_log(c, AV_LOG_VERBOSE, "SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-                       else
-                               av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-               }
-               else
-               {
-                       if(c->vLumFilterSize==1 && c->vChrFilterSize==2)
-                               av_log(c, AV_LOG_VERBOSE, "SwScaler: using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
-                                      "SwScaler:       2-tap scaler for vertical chrominance scaling (BGR)\n",(flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-                       else if(c->vLumFilterSize==2 && c->vChrFilterSize==2)
-                               av_log(c, AV_LOG_VERBOSE, "SwScaler: using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-                       else
-                               av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-               }
-
-               if(dstFormat==PIX_FMT_BGR24)
-                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using %s YV12->BGR24 Converter\n",
-                               (flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
-               else if(dstFormat==PIX_FMT_RGB32)
-                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using %s YV12->BGR32 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-               else if(dstFormat==PIX_FMT_BGR565)
-                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using %s YV12->BGR16 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-               else if(dstFormat==PIX_FMT_BGR555)
-                       av_log(c, AV_LOG_VERBOSE, "SwScaler: using %s YV12->BGR15 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-
-               av_log(c, AV_LOG_VERBOSE, "SwScaler: %dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
-       }
-       if(flags & SWS_PRINT_INFO)
-       {
-               av_log(c, AV_LOG_DEBUG, "SwScaler:Lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
-                       c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
-               av_log(c, AV_LOG_DEBUG, "SwScaler:Chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
-                       c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
-       }
-
-       c->swScale= getSwsFunc(flags);
-       return c;
-}
-
-/**
- * swscale warper, so we don't need to export the SwsContext.
- * assumes planar YUV to be in YUV order instead of YVU
- */
-int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-                           int srcSliceH, uint8_t* dst[], int dstStride[]){
-        int i;
-        uint8_t* src2[4]= {src[0], src[1], src[2]};
-        uint32_t pal[256];
-       if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
-           av_log(c, AV_LOG_ERROR, "swScaler: slices start in the middle!\n");
-           return 0;
-       }
-       if (c->sliceDir == 0) {
-           if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
-       }
-
-        if(c->srcFormat == PIX_FMT_PAL8){
-                for(i=0; i<256; i++){
-                        int p= ((uint32_t*)(src[1]))[i];
-                        int r= (p>>16)&0xFF;
-                        int g= (p>> 8)&0xFF;
-                        int b=  p     &0xFF;
-                        int y= av_clip_uint8(((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16 );
-                        int u= av_clip_uint8(((RU*r + GU*g + BU*b)>>RGB2YUV_SHIFT) + 128);
-                        int v= av_clip_uint8(((RV*r + GV*g + BV*b)>>RGB2YUV_SHIFT) + 128);
-                        pal[i]= y + (u<<8) + (v<<16);
-                }
-                src2[1]= pal;
-        }
-
-       // copy strides, so they can safely be modified
-       if (c->sliceDir == 1) {
-           // slices go from top to bottom
-           int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2]};
-           int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2]};
-           return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst, dstStride2);
-       } else {
-           // slices go from bottom to top => we flip the image internally
-           uint8_t* dst2[4]= {dst[0] + (c->dstH-1)*dstStride[0],
-                              dst[1] + ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1],
-                              dst[2] + ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2]};
-           int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2]};
-           int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2]};
-
-            src2[0] += (srcSliceH-1)*srcStride[0];
-            if(c->srcFormat != PIX_FMT_PAL8)
-                    src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
-            src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
-
-           return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
-       }
-}
-
-/**
- * swscale warper, so we don't need to export the SwsContext
- */
-int sws_scale_ordered(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
-                           int srcSliceH, uint8_t* dst[], int dstStride[]){
-       return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
-}
-
-SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
-                               float lumaSharpen, float chromaSharpen,
-                               float chromaHShift, float chromaVShift,
-                               int verbose)
-{
-       SwsFilter *filter= av_malloc(sizeof(SwsFilter));
-
-       if(lumaGBlur!=0.0){
-               filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
-               filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
-       }else{
-               filter->lumH= sws_getIdentityVec();
-               filter->lumV= sws_getIdentityVec();
-       }
-
-       if(chromaGBlur!=0.0){
-               filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
-               filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
-       }else{
-               filter->chrH= sws_getIdentityVec();
-               filter->chrV= sws_getIdentityVec();
-       }
-
-       if(chromaSharpen!=0.0){
-               SwsVector *id= sws_getIdentityVec();
-                sws_scaleVec(filter->chrH, -chromaSharpen);
-                sws_scaleVec(filter->chrV, -chromaSharpen);
-               sws_addVec(filter->chrH, id);
-               sws_addVec(filter->chrV, id);
-               sws_freeVec(id);
-       }
-
-       if(lumaSharpen!=0.0){
-               SwsVector *id= sws_getIdentityVec();
-                sws_scaleVec(filter->lumH, -lumaSharpen);
-                sws_scaleVec(filter->lumV, -lumaSharpen);
-               sws_addVec(filter->lumH, id);
-               sws_addVec(filter->lumV, id);
-               sws_freeVec(id);
-       }
-
-       if(chromaHShift != 0.0)
-               sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
-
-       if(chromaVShift != 0.0)
-               sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
-
-       sws_normalizeVec(filter->chrH, 1.0);
-       sws_normalizeVec(filter->chrV, 1.0);
-       sws_normalizeVec(filter->lumH, 1.0);
-       sws_normalizeVec(filter->lumV, 1.0);
-
-       if(verbose) sws_printVec(filter->chrH);
-       if(verbose) sws_printVec(filter->lumH);
-
-        return filter;
-}
-
-/**
- * returns a normalized gaussian curve used to filter stuff
- * quality=3 is high quality, lowwer is lowwer quality
- */
-SwsVector *sws_getGaussianVec(double variance, double quality){
-       const int length= (int)(variance*quality + 0.5) | 1;
-       int i;
-       double *coeff= av_malloc(length*sizeof(double));
-       double middle= (length-1)*0.5;
-       SwsVector *vec= av_malloc(sizeof(SwsVector));
-
-       vec->coeff= coeff;
-       vec->length= length;
-
-       for(i=0; i<length; i++)
-       {
-               double dist= i-middle;
-               coeff[i]= exp( -dist*dist/(2*variance*variance) ) / sqrt(2*variance*PI);
-       }
-
-       sws_normalizeVec(vec, 1.0);
-
-       return vec;
-}
-
-SwsVector *sws_getConstVec(double c, int length){
-       int i;
-       double *coeff= av_malloc(length*sizeof(double));
-       SwsVector *vec= av_malloc(sizeof(SwsVector));
-
-       vec->coeff= coeff;
-       vec->length= length;
-
-       for(i=0; i<length; i++)
-               coeff[i]= c;
-
-       return vec;
-}
-
-
-SwsVector *sws_getIdentityVec(void){
-        return sws_getConstVec(1.0, 1);
-}
-
-double sws_dcVec(SwsVector *a){
-       int i;
-        double sum=0;
-
-       for(i=0; i<a->length; i++)
-               sum+= a->coeff[i];
-
-        return sum;
-}
-
-void sws_scaleVec(SwsVector *a, double scalar){
-       int i;
-
-       for(i=0; i<a->length; i++)
-               a->coeff[i]*= scalar;
-}
-
-void sws_normalizeVec(SwsVector *a, double height){
-        sws_scaleVec(a, height/sws_dcVec(a));
-}
-
-static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b){
-       int length= a->length + b->length - 1;
-       double *coeff= av_malloc(length*sizeof(double));
-       int i, j;
-       SwsVector *vec= av_malloc(sizeof(SwsVector));
-
-       vec->coeff= coeff;
-       vec->length= length;
-
-       for(i=0; i<length; i++) coeff[i]= 0.0;
-
-       for(i=0; i<a->length; i++)
-       {
-               for(j=0; j<b->length; j++)
-               {
-                       coeff[i+j]+= a->coeff[i]*b->coeff[j];
-               }
-       }
-
-       return vec;
-}
-
-static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b){
-       int length= FFMAX(a->length, b->length);
-       double *coeff= av_malloc(length*sizeof(double));
-       int i;
-       SwsVector *vec= av_malloc(sizeof(SwsVector));
-
-       vec->coeff= coeff;
-       vec->length= length;
-
-       for(i=0; i<length; i++) coeff[i]= 0.0;
-
-       for(i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
-       for(i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
-
-       return vec;
-}
-
-static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b){
-       int length= FFMAX(a->length, b->length);
-       double *coeff= av_malloc(length*sizeof(double));
-       int i;
-       SwsVector *vec= av_malloc(sizeof(SwsVector));
-
-       vec->coeff= coeff;
-       vec->length= length;
-
-       for(i=0; i<length; i++) coeff[i]= 0.0;
-
-       for(i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
-       for(i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
-
-       return vec;
-}
-
-/* shift left / or right if "shift" is negative */
-static SwsVector *sws_getShiftedVec(SwsVector *a, int shift){
-       int length= a->length + FFABS(shift)*2;
-       double *coeff= av_malloc(length*sizeof(double));
-       int i;
-       SwsVector *vec= av_malloc(sizeof(SwsVector));
-
-       vec->coeff= coeff;
-       vec->length= length;
-
-       for(i=0; i<length; i++) coeff[i]= 0.0;
-
-       for(i=0; i<a->length; i++)
-       {
-               coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
-       }
-
-       return vec;
-}
-
-void sws_shiftVec(SwsVector *a, int shift){
-       SwsVector *shifted= sws_getShiftedVec(a, shift);
-       av_free(a->coeff);
-       a->coeff= shifted->coeff;
-       a->length= shifted->length;
-       av_free(shifted);
-}
-
-void sws_addVec(SwsVector *a, SwsVector *b){
-       SwsVector *sum= sws_sumVec(a, b);
-       av_free(a->coeff);
-       a->coeff= sum->coeff;
-       a->length= sum->length;
-       av_free(sum);
-}
-
-void sws_subVec(SwsVector *a, SwsVector *b){
-       SwsVector *diff= sws_diffVec(a, b);
-       av_free(a->coeff);
-       a->coeff= diff->coeff;
-       a->length= diff->length;
-       av_free(diff);
-}
-
-void sws_convVec(SwsVector *a, SwsVector *b){
-       SwsVector *conv= sws_getConvVec(a, b);
-       av_free(a->coeff);
-       a->coeff= conv->coeff;
-       a->length= conv->length;
-       av_free(conv);
-}
-
-SwsVector *sws_cloneVec(SwsVector *a){
-       double *coeff= av_malloc(a->length*sizeof(double));
-       int i;
-       SwsVector *vec= av_malloc(sizeof(SwsVector));
-
-       vec->coeff= coeff;
-       vec->length= a->length;
-
-       for(i=0; i<a->length; i++) coeff[i]= a->coeff[i];
-
-       return vec;
-}
-
-void sws_printVec(SwsVector *a){
-       int i;
-       double max=0;
-       double min=0;
-       double range;
-
-       for(i=0; i<a->length; i++)
-               if(a->coeff[i]>max) max= a->coeff[i];
-
-       for(i=0; i<a->length; i++)
-               if(a->coeff[i]<min) min= a->coeff[i];
-
-       range= max - min;
-
-       for(i=0; i<a->length; i++)
-       {
-               int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
-               av_log(NULL, AV_LOG_DEBUG, "%1.3f ", a->coeff[i]);
-               for(;x>0; x--) av_log(NULL, AV_LOG_DEBUG, " ");
-               av_log(NULL, AV_LOG_DEBUG, "|\n");
-       }
-}
-
-void sws_freeVec(SwsVector *a){
-       if(!a) return;
-       av_free(a->coeff);
-       a->coeff=NULL;
-       a->length=0;
-       av_free(a);
-}
-
-void sws_freeFilter(SwsFilter *filter){
-       if(!filter) return;
-
-       if(filter->lumH) sws_freeVec(filter->lumH);
-       if(filter->lumV) sws_freeVec(filter->lumV);
-       if(filter->chrH) sws_freeVec(filter->chrH);
-       if(filter->chrV) sws_freeVec(filter->chrV);
-       av_free(filter);
-}
-
-
-void sws_freeContext(SwsContext *c){
-       int i;
-       if(!c) return;
-
-       if(c->lumPixBuf)
-       {
-               for(i=0; i<c->vLumBufSize; i++)
-               {
-                       av_free(c->lumPixBuf[i]);
-                       c->lumPixBuf[i]=NULL;
-               }
-               av_free(c->lumPixBuf);
-               c->lumPixBuf=NULL;
-       }
-
-       if(c->chrPixBuf)
-       {
-               for(i=0; i<c->vChrBufSize; i++)
-               {
-                       av_free(c->chrPixBuf[i]);
-                       c->chrPixBuf[i]=NULL;
-               }
-               av_free(c->chrPixBuf);
-               c->chrPixBuf=NULL;
-       }
-
-       av_free(c->vLumFilter);
-       c->vLumFilter = NULL;
-       av_free(c->vChrFilter);
-       c->vChrFilter = NULL;
-       av_free(c->hLumFilter);
-       c->hLumFilter = NULL;
-       av_free(c->hChrFilter);
-       c->hChrFilter = NULL;
-#ifdef HAVE_ALTIVEC
-       av_free(c->vYCoeffsBank);
-       c->vYCoeffsBank = NULL;
-       av_free(c->vCCoeffsBank);
-       c->vCCoeffsBank = NULL;
-#endif
-
-       av_free(c->vLumFilterPos);
-       c->vLumFilterPos = NULL;
-       av_free(c->vChrFilterPos);
-       c->vChrFilterPos = NULL;
-       av_free(c->hLumFilterPos);
-       c->hLumFilterPos = NULL;
-       av_free(c->hChrFilterPos);
-       c->hChrFilterPos = NULL;
-
-#if defined(ARCH_X86) && defined(CONFIG_GPL)
-#ifdef MAP_ANONYMOUS
-       if(c->funnyYCode) munmap(c->funnyYCode, MAX_FUNNY_CODE_SIZE);
-       if(c->funnyUVCode) munmap(c->funnyUVCode, MAX_FUNNY_CODE_SIZE);
-#else
-       av_free(c->funnyYCode);
-       av_free(c->funnyUVCode);
-#endif
-       c->funnyYCode=NULL;
-       c->funnyUVCode=NULL;
-#endif /* defined(ARCH_X86) */
-
-       av_free(c->lumMmx2Filter);
-       c->lumMmx2Filter=NULL;
-       av_free(c->chrMmx2Filter);
-       c->chrMmx2Filter=NULL;
-       av_free(c->lumMmx2FilterPos);
-       c->lumMmx2FilterPos=NULL;
-       av_free(c->chrMmx2FilterPos);
-       c->chrMmx2FilterPos=NULL;
-       av_free(c->yuvTable);
-       c->yuvTable=NULL;
-
-       av_free(c);
-}
-
-/**
- * Checks if context is valid or reallocs a new one instead.
- * If context is NULL, just calls sws_getContext() to get a new one.
- * Otherwise, checks if the parameters are the same already saved in context.
- * If that is the case, returns the current context.
- * Otherwise, frees context and gets a new one.
- *
- * Be warned that srcFilter, dstFilter are not checked, they are
- * asumed to remain valid.
- */
-struct SwsContext *sws_getCachedContext(struct SwsContext *context,
-                        int srcW, int srcH, int srcFormat,
-                        int dstW, int dstH, int dstFormat, int flags,
-                        SwsFilter *srcFilter, SwsFilter *dstFilter, double *param)
-{
-    if (context != NULL) {
-        if ((context->srcW != srcW) || (context->srcH != srcH) ||
-            (context->srcFormat != srcFormat) ||
-            (context->dstW != dstW) || (context->dstH != dstH) ||
-            (context->dstFormat != dstFormat) || (context->flags != flags) ||
-            (context->param != param))
-        {
-            sws_freeContext(context);
-            context = NULL;
-        }
-    }
-    if (context == NULL) {
-        return sws_getContext(srcW, srcH, srcFormat,
-                        dstW, dstH, dstFormat, flags,
-                        srcFilter, dstFilter, param);
-    }
-    return context;
-}
-
+/*
+ * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * the C code (not assembly, mmx, ...) of this file can be used
+ * under the LGPL license too
+ */
+
+/*
+  supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR24, BGR16, BGR15, RGB32, RGB24, Y8/Y800, YVU9/IF09, PAL8
+  supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
+  {BGR,RGB}{1,4,8,15,16} support dithering
+
+  unscaled special converters (YV12=I420=IYUV, Y800=Y8)
+  YV12 -> {BGR,RGB}{1,4,8,15,16,24,32}
+  x -> x
+  YUV9 -> YV12
+  YUV9/YV12 -> Y800
+  Y800 -> YUV9/YV12
+  BGR24 -> BGR32 & RGB24 -> RGB32
+  BGR32 -> BGR24 & RGB32 -> RGB24
+  BGR15 -> BGR16
+*/
+
+/*
+tested special converters (most are tested actually but i didnt write it down ...)
+ YV12 -> BGR16
+ YV12 -> YV12
+ BGR15 -> BGR16
+ BGR16 -> BGR16
+ YVU9 -> YV12
+
+untested special converters
+  YV12/I420 -> BGR15/BGR24/BGR32 (its the yuv2rgb stuff, so it should be ok)
+  YV12/I420 -> YV12/I420
+  YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
+  BGR24 -> BGR32 & RGB24 -> RGB32
+  BGR32 -> BGR24 & RGB32 -> RGB24
+  BGR24 -> YV12
+*/
+
+#include <inttypes.h>
+#include <string.h>
+#include <math.h>
+#include <stdio.h>
+#include <unistd.h>
+#include "config.h"
+#include <assert.h>
+#ifdef HAVE_SYS_MMAN_H
+#include <sys/mman.h>
+#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
+#define MAP_ANONYMOUS MAP_ANON
+#endif
+#endif
+#include "swscale.h"
+#include "swscale_internal.h"
+#include "x86_cpu.h"
+#include "bswap.h"
+#include "rgb2rgb.h"
+#ifdef USE_FASTMEMCPY
+#include "libvo/fastmemcpy.h"
+#endif
+
+#undef MOVNTQ
+#undef PAVGB
+
+//#undef HAVE_MMX2
+//#define HAVE_3DNOW
+//#undef HAVE_MMX
+//#undef ARCH_X86
+//#define WORDS_BIGENDIAN
+#define DITHER1XBPP
+
+#define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit
+
+#define RET 0xC3 //near return opcode for X86
+
+#ifdef MP_DEBUG
+#define ASSERT(x) assert(x);
+#else
+#define ASSERT(x) ;
+#endif
+
+#ifdef M_PI
+#define PI M_PI
+#else
+#define PI 3.14159265358979323846
+#endif
+
+#define isSupportedIn(x)  ((x)==PIX_FMT_YUV420P   || (x)==PIX_FMT_YUYV422 || (x)==PIX_FMT_UYVY422 \
+                        || (x)==PIX_FMT_RGB32     || (x)==PIX_FMT_BGR24   || (x)==PIX_FMT_BGR565 || (x)==PIX_FMT_BGR555 \
+                        || (x)==PIX_FMT_BGR32     || (x)==PIX_FMT_RGB24   || (x)==PIX_FMT_RGB565 || (x)==PIX_FMT_RGB555 \
+                        || (x)==PIX_FMT_GRAY8     || (x)==PIX_FMT_YUV410P  \
+                        || (x)==PIX_FMT_GRAY16BE  || (x)==PIX_FMT_GRAY16LE \
+                        || (x)==PIX_FMT_YUV444P   || (x)==PIX_FMT_YUV422P || (x)==PIX_FMT_YUV411P \
+                        || (x)==PIX_FMT_PAL8      || (x)==PIX_FMT_BGR8    || (x)==PIX_FMT_RGB8 \
+                        || (x)==PIX_FMT_BGR4_BYTE || (x)==PIX_FMT_RGB4_BYTE)
+#define isSupportedOut(x) ((x)==PIX_FMT_YUV420P  || (x)==PIX_FMT_YUYV422 || (x)==PIX_FMT_UYVY422 \
+                        || (x)==PIX_FMT_YUV444P  || (x)==PIX_FMT_YUV422P || (x)==PIX_FMT_YUV411P \
+                        || isRGB(x) || isBGR(x) \
+                        || (x)==PIX_FMT_NV12     || (x)==PIX_FMT_NV21 \
+                        || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE \
+                        || (x)==PIX_FMT_GRAY8    || (x)==PIX_FMT_YUV410P)
+#define isPacked(x)    ((x)==PIX_FMT_PAL8    || (x)==PIX_FMT_YUYV422 || \
+                        (x)==PIX_FMT_UYVY422 || isRGB(x) || isBGR(x))
+
+#define RGB2YUV_SHIFT 16
+#define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
+#define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
+#define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
+#define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
+#define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
+#define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
+#define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
+#define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
+#define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
+
+extern const int32_t Inverse_Table_6_9[8][4];
+
+/*
+NOTES
+Special versions: fast Y 1:1 scaling (no interpolation in y direction)
+
+TODO
+more intelligent missalignment avoidance for the horizontal scaler
+write special vertical cubic upscale version
+Optimize C code (yv12 / minmax)
+add support for packed pixel yuv input & output
+add support for Y8 output
+optimize bgr24 & bgr32
+add BGR4 output support
+write special BGR->BGR scaler
+*/
+
+#if defined(ARCH_X86) && defined (CONFIG_GPL)
+static uint64_t attribute_used __attribute__((aligned(8))) bF8=       0xF8F8F8F8F8F8F8F8LL;
+static uint64_t attribute_used __attribute__((aligned(8))) bFC=       0xFCFCFCFCFCFCFCFCLL;
+static uint64_t                __attribute__((aligned(8))) w10=       0x0010001000100010LL;
+static uint64_t attribute_used __attribute__((aligned(8))) w02=       0x0002000200020002LL;
+static uint64_t attribute_used __attribute__((aligned(8))) bm00001111=0x00000000FFFFFFFFLL;
+static uint64_t attribute_used __attribute__((aligned(8))) bm00000111=0x0000000000FFFFFFLL;
+static uint64_t attribute_used __attribute__((aligned(8))) bm11111000=0xFFFFFFFFFF000000LL;
+static uint64_t attribute_used __attribute__((aligned(8))) bm01010101=0x00FF00FF00FF00FFLL;
+
+static volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;
+static volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;
+static volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;
+static volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;
+
+static uint64_t __attribute__((aligned(8))) dither4[2]={
+        0x0103010301030103LL,
+        0x0200020002000200LL,};
+
+static uint64_t __attribute__((aligned(8))) dither8[2]={
+        0x0602060206020602LL,
+        0x0004000400040004LL,};
+
+static uint64_t                __attribute__((aligned(8))) b16Mask=   0x001F001F001F001FLL;
+static uint64_t attribute_used __attribute__((aligned(8))) g16Mask=   0x07E007E007E007E0LL;
+static uint64_t attribute_used __attribute__((aligned(8))) r16Mask=   0xF800F800F800F800LL;
+static uint64_t                __attribute__((aligned(8))) b15Mask=   0x001F001F001F001FLL;
+static uint64_t attribute_used __attribute__((aligned(8))) g15Mask=   0x03E003E003E003E0LL;
+static uint64_t attribute_used __attribute__((aligned(8))) r15Mask=   0x7C007C007C007C00LL;
+
+static uint64_t attribute_used __attribute__((aligned(8))) M24A=      0x00FF0000FF0000FFLL;
+static uint64_t attribute_used __attribute__((aligned(8))) M24B=      0xFF0000FF0000FF00LL;
+static uint64_t attribute_used __attribute__((aligned(8))) M24C=      0x0000FF0000FF0000LL;
+
+#ifdef FAST_BGR2YV12
+static const uint64_t bgr2YCoeff   attribute_used __attribute__((aligned(8))) = 0x000000210041000DULL;
+static const uint64_t bgr2UCoeff   attribute_used __attribute__((aligned(8))) = 0x0000FFEEFFDC0038ULL;
+static const uint64_t bgr2VCoeff   attribute_used __attribute__((aligned(8))) = 0x00000038FFD2FFF8ULL;
+#else
+static const uint64_t bgr2YCoeff   attribute_used __attribute__((aligned(8))) = 0x000020E540830C8BULL;
+static const uint64_t bgr2UCoeff   attribute_used __attribute__((aligned(8))) = 0x0000ED0FDAC23831ULL;
+static const uint64_t bgr2VCoeff   attribute_used __attribute__((aligned(8))) = 0x00003831D0E6F6EAULL;
+#endif /* FAST_BGR2YV12 */
+static const uint64_t bgr2YOffset  attribute_used __attribute__((aligned(8))) = 0x1010101010101010ULL;
+static const uint64_t bgr2UVOffset attribute_used __attribute__((aligned(8))) = 0x8080808080808080ULL;
+static const uint64_t w1111        attribute_used __attribute__((aligned(8))) = 0x0001000100010001ULL;
+#endif /* defined(ARCH_X86) */
+
+// clipping helper table for C implementations:
+static unsigned char clip_table[768];
+
+static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
+
+extern const uint8_t dither_2x2_4[2][8];
+extern const uint8_t dither_2x2_8[2][8];
+extern const uint8_t dither_8x8_32[8][8];
+extern const uint8_t dither_8x8_73[8][8];
+extern const uint8_t dither_8x8_220[8][8];
+
+static const char * sws_context_to_name(void * ptr) {
+    return "swscaler";
+}
+
+static AVClass sws_context_class = { "SWScaler", sws_context_to_name, NULL };
+
+char *sws_format_name(enum PixelFormat format)
+{
+    switch (format) {
+        case PIX_FMT_YUV420P:
+            return "yuv420p";
+        case PIX_FMT_YUYV422:
+            return "yuyv422";
+        case PIX_FMT_RGB24:
+            return "rgb24";
+        case PIX_FMT_BGR24:
+            return "bgr24";
+        case PIX_FMT_YUV422P:
+            return "yuv422p";
+        case PIX_FMT_YUV444P:
+            return "yuv444p";
+        case PIX_FMT_RGB32:
+            return "rgb32";
+        case PIX_FMT_YUV410P:
+            return "yuv410p";
+        case PIX_FMT_YUV411P:
+            return "yuv411p";
+        case PIX_FMT_RGB565:
+            return "rgb565";
+        case PIX_FMT_RGB555:
+            return "rgb555";
+        case PIX_FMT_GRAY16BE:
+            return "gray16be";
+        case PIX_FMT_GRAY16LE:
+            return "gray16le";
+        case PIX_FMT_GRAY8:
+            return "gray8";
+        case PIX_FMT_MONOWHITE:
+            return "mono white";
+        case PIX_FMT_MONOBLACK:
+            return "mono black";
+        case PIX_FMT_PAL8:
+            return "Palette";
+        case PIX_FMT_YUVJ420P:
+            return "yuvj420p";
+        case PIX_FMT_YUVJ422P:
+            return "yuvj422p";
+        case PIX_FMT_YUVJ444P:
+            return "yuvj444p";
+        case PIX_FMT_XVMC_MPEG2_MC:
+            return "xvmc_mpeg2_mc";
+        case PIX_FMT_XVMC_MPEG2_IDCT:
+            return "xvmc_mpeg2_idct";
+        case PIX_FMT_UYVY422:
+            return "uyvy422";
+        case PIX_FMT_UYYVYY411:
+            return "uyyvyy411";
+        case PIX_FMT_RGB32_1:
+            return "rgb32x";
+        case PIX_FMT_BGR32_1:
+            return "bgr32x";
+        case PIX_FMT_BGR32:
+            return "bgr32";
+        case PIX_FMT_BGR565:
+            return "bgr565";
+        case PIX_FMT_BGR555:
+            return "bgr555";
+        case PIX_FMT_BGR8:
+            return "bgr8";
+        case PIX_FMT_BGR4:
+            return "bgr4";
+        case PIX_FMT_BGR4_BYTE:
+            return "bgr4 byte";
+        case PIX_FMT_RGB8:
+            return "rgb8";
+        case PIX_FMT_RGB4:
+            return "rgb4";
+        case PIX_FMT_RGB4_BYTE:
+            return "rgb4 byte";
+        case PIX_FMT_NV12:
+            return "nv12";
+        case PIX_FMT_NV21:
+            return "nv21";
+        default:
+            return "Unknown format";
+    }
+}
+
+#if defined(ARCH_X86) && defined (CONFIG_GPL)
+void in_asm_used_var_warning_killer()
+{
+    volatile int i= bF8+bFC+w10+
+    bm00001111+bm00000111+bm11111000+b16Mask+g16Mask+r16Mask+b15Mask+g15Mask+r15Mask+
+    M24A+M24B+M24C+w02 + b5Dither+g5Dither+r5Dither+g6Dither+dither4[0]+dither8[0]+bm01010101;
+    if (i) i=0;
+}
+#endif
+
+static inline void yuv2yuvXinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
+                               int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
+                               uint8_t *dest, uint8_t *uDest, uint8_t *vDest, int dstW, int chrDstW)
+{
+    //FIXME Optimize (just quickly writen not opti..)
+    int i;
+    for (i=0; i<dstW; i++)
+    {
+        int val=1<<18;
+        int j;
+        for (j=0; j<lumFilterSize; j++)
+            val += lumSrc[j][i] * lumFilter[j];
+
+        dest[i]= av_clip_uint8(val>>19);
+    }
+
+    if (uDest != NULL)
+        for (i=0; i<chrDstW; i++)
+        {
+            int u=1<<18;
+            int v=1<<18;
+            int j;
+            for (j=0; j<chrFilterSize; j++)
+            {
+                u += chrSrc[j][i] * chrFilter[j];
+                v += chrSrc[j][i + 2048] * chrFilter[j];
+            }
+
+            uDest[i]= av_clip_uint8(u>>19);
+            vDest[i]= av_clip_uint8(v>>19);
+        }
+}
+
+static inline void yuv2nv12XinC(int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
+                                int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
+                                uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
+{
+    //FIXME Optimize (just quickly writen not opti..)
+    int i;
+    for (i=0; i<dstW; i++)
+    {
+        int val=1<<18;
+        int j;
+        for (j=0; j<lumFilterSize; j++)
+            val += lumSrc[j][i] * lumFilter[j];
+
+        dest[i]= av_clip_uint8(val>>19);
+    }
+
+    if (uDest == NULL)
+        return;
+
+    if (dstFormat == PIX_FMT_NV12)
+        for (i=0; i<chrDstW; i++)
+        {
+            int u=1<<18;
+            int v=1<<18;
+            int j;
+            for (j=0; j<chrFilterSize; j++)
+            {
+                u += chrSrc[j][i] * chrFilter[j];
+                v += chrSrc[j][i + 2048] * chrFilter[j];
+            }
+
+            uDest[2*i]= av_clip_uint8(u>>19);
+            uDest[2*i+1]= av_clip_uint8(v>>19);
+        }
+    else
+        for (i=0; i<chrDstW; i++)
+        {
+            int u=1<<18;
+            int v=1<<18;
+            int j;
+            for (j=0; j<chrFilterSize; j++)
+            {
+                u += chrSrc[j][i] * chrFilter[j];
+                v += chrSrc[j][i + 2048] * chrFilter[j];
+            }
+
+            uDest[2*i]= av_clip_uint8(v>>19);
+            uDest[2*i+1]= av_clip_uint8(u>>19);
+        }
+}
+
+#define YSCALE_YUV_2_PACKEDX_C(type) \
+    for (i=0; i<(dstW>>1); i++){\
+        int j;\
+        int Y1 = 1<<18;\
+        int Y2 = 1<<18;\
+        int U  = 1<<18;\
+        int V  = 1<<18;\
+        type attribute_unused *r, *b, *g;\
+        const int i2= 2*i;\
+        \
+        for (j=0; j<lumFilterSize; j++)\
+        {\
+            Y1 += lumSrc[j][i2] * lumFilter[j];\
+            Y2 += lumSrc[j][i2+1] * lumFilter[j];\
+        }\
+        for (j=0; j<chrFilterSize; j++)\
+        {\
+            U += chrSrc[j][i] * chrFilter[j];\
+            V += chrSrc[j][i+2048] * chrFilter[j];\
+        }\
+        Y1>>=19;\
+        Y2>>=19;\
+        U >>=19;\
+        V >>=19;\
+        if ((Y1|Y2|U|V)&256)\
+        {\
+            if (Y1>255)   Y1=255; \
+            else if (Y1<0)Y1=0;   \
+            if (Y2>255)   Y2=255; \
+            else if (Y2<0)Y2=0;   \
+            if (U>255)    U=255;  \
+            else if (U<0) U=0;    \
+            if (V>255)    V=255;  \
+            else if (V<0) V=0;    \
+        }
+
+#define YSCALE_YUV_2_RGBX_C(type) \
+    YSCALE_YUV_2_PACKEDX_C(type)  \
+    r = (type *)c->table_rV[V];   \
+    g = (type *)(c->table_gU[U] + c->table_gV[V]); \
+    b = (type *)c->table_bU[U];   \
+
+#define YSCALE_YUV_2_PACKED2_C   \
+    for (i=0; i<(dstW>>1); i++){ \
+        const int i2= 2*i;       \
+        int Y1= (buf0[i2  ]*yalpha1+buf1[i2  ]*yalpha)>>19;           \
+        int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19;           \
+        int U= (uvbuf0[i     ]*uvalpha1+uvbuf1[i     ]*uvalpha)>>19;  \
+        int V= (uvbuf0[i+2048]*uvalpha1+uvbuf1[i+2048]*uvalpha)>>19;  \
+
+#define YSCALE_YUV_2_RGB2_C(type) \
+    YSCALE_YUV_2_PACKED2_C\
+    type *r, *b, *g;\
+    r = (type *)c->table_rV[V];\
+    g = (type *)(c->table_gU[U] + c->table_gV[V]);\
+    b = (type *)c->table_bU[U];\
+
+#define YSCALE_YUV_2_PACKED1_C \
+    for (i=0; i<(dstW>>1); i++){\
+        const int i2= 2*i;\
+        int Y1= buf0[i2  ]>>7;\
+        int Y2= buf0[i2+1]>>7;\
+        int U= (uvbuf1[i     ])>>7;\
+        int V= (uvbuf1[i+2048])>>7;\
+
+#define YSCALE_YUV_2_RGB1_C(type) \
+    YSCALE_YUV_2_PACKED1_C\
+    type *r, *b, *g;\
+    r = (type *)c->table_rV[V];\
+    g = (type *)(c->table_gU[U] + c->table_gV[V]);\
+    b = (type *)c->table_bU[U];\
+
+#define YSCALE_YUV_2_PACKED1B_C \
+    for (i=0; i<(dstW>>1); i++){\
+        const int i2= 2*i;\
+        int Y1= buf0[i2  ]>>7;\
+        int Y2= buf0[i2+1]>>7;\
+        int U= (uvbuf0[i     ] + uvbuf1[i     ])>>8;\
+        int V= (uvbuf0[i+2048] + uvbuf1[i+2048])>>8;\
+
+#define YSCALE_YUV_2_RGB1B_C(type) \
+    YSCALE_YUV_2_PACKED1B_C\
+    type *r, *b, *g;\
+    r = (type *)c->table_rV[V];\
+    g = (type *)(c->table_gU[U] + c->table_gV[V]);\
+    b = (type *)c->table_bU[U];\
+
+#define YSCALE_YUV_2_ANYRGB_C(func, func2)\
+    switch(c->dstFormat)\
+    {\
+    case PIX_FMT_RGB32:\
+    case PIX_FMT_BGR32:\
+        func(uint32_t)\
+            ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
+            ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
+        }                \
+        break;\
+    case PIX_FMT_RGB24:\
+        func(uint8_t)\
+            ((uint8_t*)dest)[0]= r[Y1];\
+            ((uint8_t*)dest)[1]= g[Y1];\
+            ((uint8_t*)dest)[2]= b[Y1];\
+            ((uint8_t*)dest)[3]= r[Y2];\
+            ((uint8_t*)dest)[4]= g[Y2];\
+            ((uint8_t*)dest)[5]= b[Y2];\
+            dest+=6;\
+        }\
+        break;\
+    case PIX_FMT_BGR24:\
+        func(uint8_t)\
+            ((uint8_t*)dest)[0]= b[Y1];\
+            ((uint8_t*)dest)[1]= g[Y1];\
+            ((uint8_t*)dest)[2]= r[Y1];\
+            ((uint8_t*)dest)[3]= b[Y2];\
+            ((uint8_t*)dest)[4]= g[Y2];\
+            ((uint8_t*)dest)[5]= r[Y2];\
+            dest+=6;\
+        }\
+        break;\
+    case PIX_FMT_RGB565:\
+    case PIX_FMT_BGR565:\
+        {\
+            const int dr1= dither_2x2_8[y&1    ][0];\
+            const int dg1= dither_2x2_4[y&1    ][0];\
+            const int db1= dither_2x2_8[(y&1)^1][0];\
+            const int dr2= dither_2x2_8[y&1    ][1];\
+            const int dg2= dither_2x2_4[y&1    ][1];\
+            const int db2= dither_2x2_8[(y&1)^1][1];\
+            func(uint16_t)\
+                ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
+                ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
+            }\
+        }\
+        break;\
+    case PIX_FMT_RGB555:\
+    case PIX_FMT_BGR555:\
+        {\
+            const int dr1= dither_2x2_8[y&1    ][0];\
+            const int dg1= dither_2x2_8[y&1    ][1];\
+            const int db1= dither_2x2_8[(y&1)^1][0];\
+            const int dr2= dither_2x2_8[y&1    ][1];\
+            const int dg2= dither_2x2_8[y&1    ][0];\
+            const int db2= dither_2x2_8[(y&1)^1][1];\
+            func(uint16_t)\
+                ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
+                ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
+            }\
+        }\
+        break;\
+    case PIX_FMT_RGB8:\
+    case PIX_FMT_BGR8:\
+        {\
+            const uint8_t * const d64= dither_8x8_73[y&7];\
+            const uint8_t * const d32= dither_8x8_32[y&7];\
+            func(uint8_t)\
+                ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
+                ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
+            }\
+        }\
+        break;\
+    case PIX_FMT_RGB4:\
+    case PIX_FMT_BGR4:\
+        {\
+            const uint8_t * const d64= dither_8x8_73 [y&7];\
+            const uint8_t * const d128=dither_8x8_220[y&7];\
+            func(uint8_t)\
+                ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
+                                 + ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
+            }\
+        }\
+        break;\
+    case PIX_FMT_RGB4_BYTE:\
+    case PIX_FMT_BGR4_BYTE:\
+        {\
+            const uint8_t * const d64= dither_8x8_73 [y&7];\
+            const uint8_t * const d128=dither_8x8_220[y&7];\
+            func(uint8_t)\
+                ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
+                ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
+            }\
+        }\
+        break;\
+    case PIX_FMT_MONOBLACK:\
+        {\
+            const uint8_t * const d128=dither_8x8_220[y&7];\
+            uint8_t *g= c->table_gU[128] + c->table_gV[128];\
+            for (i=0; i<dstW-7; i+=8){\
+                int acc;\
+                acc =       g[((buf0[i  ]*yalpha1+buf1[i  ]*yalpha)>>19) + d128[0]];\
+                acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
+                acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
+                acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
+                acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
+                acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
+                acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
+                acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
+                ((uint8_t*)dest)[0]= acc;\
+                dest++;\
+            }\
+\
+/*\
+((uint8_t*)dest)-= dstW>>4;\
+{\
+            int acc=0;\
+            int left=0;\
+            static int top[1024];\
+            static int last_new[1024][1024];\
+            static int last_in3[1024][1024];\
+            static int drift[1024][1024];\
+            int topLeft=0;\
+            int shift=0;\
+            int count=0;\
+            const uint8_t * const d128=dither_8x8_220[y&7];\
+            int error_new=0;\
+            int error_in3=0;\
+            int f=0;\
+            \
+            for (i=dstW>>1; i<dstW; i++){\
+                int in= ((buf0[i  ]*yalpha1+buf1[i  ]*yalpha)>>19);\
+                int in2 = (76309 * (in - 16) + 32768) >> 16;\
+                int in3 = (in2 < 0) ? 0 : ((in2 > 255) ? 255 : in2);\
+                int old= (left*7 + topLeft + top[i]*5 + top[i+1]*3)/20 + in3\
+                         + (last_new[y][i] - in3)*f/256;\
+                int new= old> 128 ? 255 : 0;\
+\
+                error_new+= FFABS(last_new[y][i] - new);\
+                error_in3+= FFABS(last_in3[y][i] - in3);\
+                f= error_new - error_in3*4;\
+                if (f<0) f=0;\
+                if (f>256) f=256;\
+\
+                topLeft= top[i];\
+                left= top[i]= old - new;\
+                last_new[y][i]= new;\
+                last_in3[y][i]= in3;\
+\
+                acc+= acc + (new&1);\
+                if ((i&7)==6){\
+                    ((uint8_t*)dest)[0]= acc;\
+                    ((uint8_t*)dest)++;\
+                }\
+            }\
+}\
+*/\
+        }\
+        break;\
+    case PIX_FMT_YUYV422:\
+        func2\
+            ((uint8_t*)dest)[2*i2+0]= Y1;\
+            ((uint8_t*)dest)[2*i2+1]= U;\
+            ((uint8_t*)dest)[2*i2+2]= Y2;\
+            ((uint8_t*)dest)[2*i2+3]= V;\
+        }                \
+        break;\
+    case PIX_FMT_UYVY422:\
+        func2\
+            ((uint8_t*)dest)[2*i2+0]= U;\
+            ((uint8_t*)dest)[2*i2+1]= Y1;\
+            ((uint8_t*)dest)[2*i2+2]= V;\
+            ((uint8_t*)dest)[2*i2+3]= Y2;\
+        }                \
+        break;\
+    }\
+
+
+static inline void yuv2packedXinC(SwsContext *c, int16_t *lumFilter, int16_t **lumSrc, int lumFilterSize,
+                                  int16_t *chrFilter, int16_t **chrSrc, int chrFilterSize,
+                                  uint8_t *dest, int dstW, int y)
+{
+    int i;
+    switch(c->dstFormat)
+    {
+    case PIX_FMT_BGR32:
+    case PIX_FMT_RGB32:
+        YSCALE_YUV_2_RGBX_C(uint32_t)
+            ((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];
+            ((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];
+        }
+        break;
+    case PIX_FMT_RGB24:
+        YSCALE_YUV_2_RGBX_C(uint8_t)
+            ((uint8_t*)dest)[0]= r[Y1];
+            ((uint8_t*)dest)[1]= g[Y1];
+            ((uint8_t*)dest)[2]= b[Y1];
+            ((uint8_t*)dest)[3]= r[Y2];
+            ((uint8_t*)dest)[4]= g[Y2];
+            ((uint8_t*)dest)[5]= b[Y2];
+            dest+=6;
+        }
+        break;
+    case PIX_FMT_BGR24:
+        YSCALE_YUV_2_RGBX_C(uint8_t)
+            ((uint8_t*)dest)[0]= b[Y1];
+            ((uint8_t*)dest)[1]= g[Y1];
+            ((uint8_t*)dest)[2]= r[Y1];
+            ((uint8_t*)dest)[3]= b[Y2];
+            ((uint8_t*)dest)[4]= g[Y2];
+            ((uint8_t*)dest)[5]= r[Y2];
+            dest+=6;
+        }
+        break;
+    case PIX_FMT_RGB565:
+    case PIX_FMT_BGR565:
+        {
+            const int dr1= dither_2x2_8[y&1    ][0];
+            const int dg1= dither_2x2_4[y&1    ][0];
+            const int db1= dither_2x2_8[(y&1)^1][0];
+            const int dr2= dither_2x2_8[y&1    ][1];
+            const int dg2= dither_2x2_4[y&1    ][1];
+            const int db2= dither_2x2_8[(y&1)^1][1];
+            YSCALE_YUV_2_RGBX_C(uint16_t)
+                ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
+                ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
+            }
+        }
+        break;
+    case PIX_FMT_RGB555:
+    case PIX_FMT_BGR555:
+        {
+            const int dr1= dither_2x2_8[y&1    ][0];
+            const int dg1= dither_2x2_8[y&1    ][1];
+            const int db1= dither_2x2_8[(y&1)^1][0];
+            const int dr2= dither_2x2_8[y&1    ][1];
+            const int dg2= dither_2x2_8[y&1    ][0];
+            const int db2= dither_2x2_8[(y&1)^1][1];
+            YSCALE_YUV_2_RGBX_C(uint16_t)
+                ((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];
+                ((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];
+            }
+        }
+        break;
+    case PIX_FMT_RGB8:
+    case PIX_FMT_BGR8:
+        {
+            const uint8_t * const d64= dither_8x8_73[y&7];
+            const uint8_t * const d32= dither_8x8_32[y&7];
+            YSCALE_YUV_2_RGBX_C(uint8_t)
+                ((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];
+                ((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];
+            }
+        }
+        break;
+    case PIX_FMT_RGB4:
+    case PIX_FMT_BGR4:
+        {
+            const uint8_t * const d64= dither_8x8_73 [y&7];
+            const uint8_t * const d128=dither_8x8_220[y&7];
+            YSCALE_YUV_2_RGBX_C(uint8_t)
+                ((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]
+                                  +((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);
+            }
+        }
+        break;
+    case PIX_FMT_RGB4_BYTE:
+    case PIX_FMT_BGR4_BYTE:
+        {
+            const uint8_t * const d64= dither_8x8_73 [y&7];
+            const uint8_t * const d128=dither_8x8_220[y&7];
+            YSCALE_YUV_2_RGBX_C(uint8_t)
+                ((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];
+                ((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];
+            }
+        }
+        break;
+    case PIX_FMT_MONOBLACK:
+        {
+            const uint8_t * const d128=dither_8x8_220[y&7];
+            uint8_t *g= c->table_gU[128] + c->table_gV[128];
+            int acc=0;
+            for (i=0; i<dstW-1; i+=2){
+                int j;
+                int Y1=1<<18;
+                int Y2=1<<18;
+
+                for (j=0; j<lumFilterSize; j++)
+                {
+                    Y1 += lumSrc[j][i] * lumFilter[j];
+                    Y2 += lumSrc[j][i+1] * lumFilter[j];
+                }
+                Y1>>=19;
+                Y2>>=19;
+                if ((Y1|Y2)&256)
+                {
+                    if (Y1>255)   Y1=255;
+                    else if (Y1<0)Y1=0;
+                    if (Y2>255)   Y2=255;
+                    else if (Y2<0)Y2=0;
+                }
+                acc+= acc + g[Y1+d128[(i+0)&7]];
+                acc+= acc + g[Y2+d128[(i+1)&7]];
+                if ((i&7)==6){
+                    ((uint8_t*)dest)[0]= acc;
+                    dest++;
+                }
+            }
+        }
+        break;
+    case PIX_FMT_YUYV422:
+        YSCALE_YUV_2_PACKEDX_C(void)
+            ((uint8_t*)dest)[2*i2+0]= Y1;
+            ((uint8_t*)dest)[2*i2+1]= U;
+            ((uint8_t*)dest)[2*i2+2]= Y2;
+            ((uint8_t*)dest)[2*i2+3]= V;
+        }
+        break;
+    case PIX_FMT_UYVY422:
+        YSCALE_YUV_2_PACKEDX_C(void)
+            ((uint8_t*)dest)[2*i2+0]= U;
+            ((uint8_t*)dest)[2*i2+1]= Y1;
+            ((uint8_t*)dest)[2*i2+2]= V;
+            ((uint8_t*)dest)[2*i2+3]= Y2;
+        }
+        break;
+    }
+}
+
+
+//Note: we have C, X86, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
+//Plain C versions
+#if !defined (HAVE_MMX) || defined (RUNTIME_CPUDETECT) || !defined(CONFIG_GPL)
+#define COMPILE_C
+#endif
+
+#ifdef ARCH_POWERPC
+#if (defined (HAVE_ALTIVEC) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
+#define COMPILE_ALTIVEC
+#endif //HAVE_ALTIVEC
+#endif //ARCH_POWERPC
+
+#if defined(ARCH_X86)
+
+#if ((defined (HAVE_MMX) && !defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
+#define COMPILE_MMX
+#endif
+
+#if (defined (HAVE_MMX2) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
+#define COMPILE_MMX2
+#endif
+
+#if ((defined (HAVE_3DNOW) && !defined (HAVE_MMX2)) || defined (RUNTIME_CPUDETECT)) && defined (CONFIG_GPL)
+#define COMPILE_3DNOW
+#endif
+#endif //ARCH_X86 || ARCH_X86_64
+
+#undef HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_3DNOW
+
+#ifdef COMPILE_C
+#undef HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_3DNOW
+#undef HAVE_ALTIVEC
+#define RENAME(a) a ## _C
+#include "swscale_template.c"
+#endif
+
+#ifdef ARCH_POWERPC
+#ifdef COMPILE_ALTIVEC
+#undef RENAME
+#define HAVE_ALTIVEC
+#define RENAME(a) a ## _altivec
+#include "swscale_template.c"
+#endif
+#endif //ARCH_POWERPC
+
+#if defined(ARCH_X86)
+
+//X86 versions
+/*
+#undef RENAME
+#undef HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_3DNOW
+#define ARCH_X86
+#define RENAME(a) a ## _X86
+#include "swscale_template.c"
+*/
+//MMX versions
+#ifdef COMPILE_MMX
+#undef RENAME
+#define HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_3DNOW
+#define RENAME(a) a ## _MMX
+#include "swscale_template.c"
+#endif
+
+//MMX2 versions
+#ifdef COMPILE_MMX2
+#undef RENAME
+#define HAVE_MMX
+#define HAVE_MMX2
+#undef HAVE_3DNOW
+#define RENAME(a) a ## _MMX2
+#include "swscale_template.c"
+#endif
+
+//3DNOW versions
+#ifdef COMPILE_3DNOW
+#undef RENAME
+#define HAVE_MMX
+#undef HAVE_MMX2
+#define HAVE_3DNOW
+#define RENAME(a) a ## _3DNow
+#include "swscale_template.c"
+#endif
+
+#endif //ARCH_X86 || ARCH_X86_64
+
+// minor note: the HAVE_xyz is messed up after that line so don't use it
+
+static double getSplineCoeff(double a, double b, double c, double d, double dist)
+{
+//    printf("%f %f %f %f %f\n", a,b,c,d,dist);
+    if (dist<=1.0)      return ((d*dist + c)*dist + b)*dist +a;
+    else                return getSplineCoeff(        0.0,
+                                             b+ 2.0*c + 3.0*d,
+                                                    c + 3.0*d,
+                                            -b- 3.0*c - 6.0*d,
+                                            dist-1.0);
+}
+
+static inline int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
+                             int srcW, int dstW, int filterAlign, int one, int flags,
+                             SwsVector *srcFilter, SwsVector *dstFilter, double param[2])
+{
+    int i;
+    int filterSize;
+    int filter2Size;
+    int minFilterSize;
+    double *filter=NULL;
+    double *filter2=NULL;
+#if defined(ARCH_X86)
+    if (flags & SWS_CPU_CAPS_MMX)
+        asm volatile("emms\n\t"::: "memory"); //FIXME this shouldnt be required but it IS (even for non mmx versions)
+#endif
+
+    // Note the +1 is for the MMXscaler which reads over the end
+    *filterPos = av_malloc((dstW+1)*sizeof(int16_t));
+
+    if (FFABS(xInc - 0x10000) <10) // unscaled
+    {
+        int i;
+        filterSize= 1;
+        filter= av_malloc(dstW*sizeof(double)*filterSize);
+        for (i=0; i<dstW*filterSize; i++) filter[i]=0;
+
+        for (i=0; i<dstW; i++)
+        {
+            filter[i*filterSize]=1;
+            (*filterPos)[i]=i;
+        }
+
+    }
+    else if (flags&SWS_POINT) // lame looking point sampling mode
+    {
+        int i;
+        int xDstInSrc;
+        filterSize= 1;
+        filter= av_malloc(dstW*sizeof(double)*filterSize);
+
+        xDstInSrc= xInc/2 - 0x8000;
+        for (i=0; i<dstW; i++)
+        {
+            int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
+
+            (*filterPos)[i]= xx;
+            filter[i]= 1.0;
+            xDstInSrc+= xInc;
+        }
+    }
+    else if ((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) // bilinear upscale
+    {
+        int i;
+        int xDstInSrc;
+        if      (flags&SWS_BICUBIC) filterSize= 4;
+        else if (flags&SWS_X      ) filterSize= 4;
+        else                        filterSize= 2; // SWS_BILINEAR / SWS_AREA
+        filter= av_malloc(dstW*sizeof(double)*filterSize);
+
+        xDstInSrc= xInc/2 - 0x8000;
+        for (i=0; i<dstW; i++)
+        {
+            int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
+            int j;
+
+            (*filterPos)[i]= xx;
+                //Bilinear upscale / linear interpolate / Area averaging
+                for (j=0; j<filterSize; j++)
+                {
+                    double d= FFABS((xx<<16) - xDstInSrc)/(double)(1<<16);
+                    double coeff= 1.0 - d;
+                    if (coeff<0) coeff=0;
+                    filter[i*filterSize + j]= coeff;
+                    xx++;
+                }
+            xDstInSrc+= xInc;
+        }
+    }
+    else
+    {
+        double xDstInSrc;
+        double sizeFactor, filterSizeInSrc;
+        const double xInc1= (double)xInc / (double)(1<<16);
+
+        if      (flags&SWS_BICUBIC)      sizeFactor=  4.0;
+        else if (flags&SWS_X)            sizeFactor=  8.0;
+        else if (flags&SWS_AREA)         sizeFactor=  1.0; //downscale only, for upscale it is bilinear
+        else if (flags&SWS_GAUSS)        sizeFactor=  8.0;   // infinite ;)
+        else if (flags&SWS_LANCZOS)      sizeFactor= param[0] != SWS_PARAM_DEFAULT ? 2.0*param[0] : 6.0;
+        else if (flags&SWS_SINC)         sizeFactor= 20.0; // infinite ;)
+        else if (flags&SWS_SPLINE)       sizeFactor= 20.0;  // infinite ;)
+        else if (flags&SWS_BILINEAR)     sizeFactor=  2.0;
+        else {
+            sizeFactor= 0.0; //GCC warning killer
+            ASSERT(0)
+        }
+
+        if (xInc1 <= 1.0)       filterSizeInSrc= sizeFactor; // upscale
+        else                    filterSizeInSrc= sizeFactor*srcW / (double)dstW;
+
+        filterSize= (int)ceil(1 + filterSizeInSrc); // will be reduced later if possible
+        if (filterSize > srcW-2) filterSize=srcW-2;
+
+        filter= av_malloc(dstW*sizeof(double)*filterSize);
+
+        xDstInSrc= xInc1 / 2.0 - 0.5;
+        for (i=0; i<dstW; i++)
+        {
+            int xx= (int)(xDstInSrc - (filterSize-1)*0.5 + 0.5);
+            int j;
+            (*filterPos)[i]= xx;
+            for (j=0; j<filterSize; j++)
+            {
+                double d= FFABS(xx - xDstInSrc)/filterSizeInSrc*sizeFactor;
+                double coeff;
+                if (flags & SWS_BICUBIC)
+                {
+                    double B= param[0] != SWS_PARAM_DEFAULT ? param[0] : 0.0;
+                    double C= param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6;
+
+                    if (d<1.0)
+                        coeff = (12-9*B-6*C)*d*d*d + (-18+12*B+6*C)*d*d + 6-2*B;
+                    else if (d<2.0)
+                        coeff = (-B-6*C)*d*d*d + (6*B+30*C)*d*d + (-12*B-48*C)*d +8*B+24*C;
+                    else
+                        coeff=0.0;
+                }
+/*                else if (flags & SWS_X)
+                {
+                    double p= param ? param*0.01 : 0.3;
+                    coeff = d ? sin(d*PI)/(d*PI) : 1.0;
+                    coeff*= pow(2.0, - p*d*d);
+                }*/
+                else if (flags & SWS_X)
+                {
+                    double A= param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
+
+                    if (d<1.0)
+                        coeff = cos(d*PI);
+                    else
+                        coeff=-1.0;
+                    if (coeff<0.0)      coeff= -pow(-coeff, A);
+                    else                coeff=  pow( coeff, A);
+                    coeff= coeff*0.5 + 0.5;
+                }
+                else if (flags & SWS_AREA)
+                {
+                    double srcPixelSize= 1.0/xInc1;
+                    if      (d + srcPixelSize/2 < 0.5) coeff= 1.0;
+                    else if (d - srcPixelSize/2 < 0.5) coeff= (0.5-d)/srcPixelSize + 0.5;
+                    else coeff=0.0;
+                }
+                else if (flags & SWS_GAUSS)
+                {
+                    double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
+                    coeff = pow(2.0, - p*d*d);
+                }
+                else if (flags & SWS_SINC)
+                {
+                    coeff = d ? sin(d*PI)/(d*PI) : 1.0;
+                }
+                else if (flags & SWS_LANCZOS)
+                {
+                    double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
+                    coeff = d ? sin(d*PI)*sin(d*PI/p)/(d*d*PI*PI/p) : 1.0;
+                    if (d>p) coeff=0;
+                }
+                else if (flags & SWS_BILINEAR)
+                {
+                    coeff= 1.0 - d;
+                    if (coeff<0) coeff=0;
+                }
+                else if (flags & SWS_SPLINE)
+                {
+                    double p=-2.196152422706632;
+                    coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, d);
+                }
+                else {
+                    coeff= 0.0; //GCC warning killer
+                    ASSERT(0)
+                }
+
+                filter[i*filterSize + j]= coeff;
+                xx++;
+            }
+            xDstInSrc+= xInc1;
+        }
+    }
+
+    /* apply src & dst Filter to filter -> filter2
+       av_free(filter);
+    */
+    ASSERT(filterSize>0)
+    filter2Size= filterSize;
+    if (srcFilter) filter2Size+= srcFilter->length - 1;
+    if (dstFilter) filter2Size+= dstFilter->length - 1;
+    ASSERT(filter2Size>0)
+    filter2= av_malloc(filter2Size*dstW*sizeof(double));
+
+    for (i=0; i<dstW; i++)
+    {
+        int j;
+        SwsVector scaleFilter;
+        SwsVector *outVec;
+
+        scaleFilter.coeff= filter + i*filterSize;
+        scaleFilter.length= filterSize;
+
+        if (srcFilter) outVec= sws_getConvVec(srcFilter, &scaleFilter);
+        else           outVec= &scaleFilter;
+
+        ASSERT(outVec->length == filter2Size)
+        //FIXME dstFilter
+
+        for (j=0; j<outVec->length; j++)
+        {
+            filter2[i*filter2Size + j]= outVec->coeff[j];
+        }
+
+        (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
+
+        if (outVec != &scaleFilter) sws_freeVec(outVec);
+    }
+    av_free(filter); filter=NULL;
+
+    /* try to reduce the filter-size (step1 find size and shift left) */
+    // Assume its near normalized (*0.5 or *2.0 is ok but * 0.001 is not)
+    minFilterSize= 0;
+    for (i=dstW-1; i>=0; i--)
+    {
+        int min= filter2Size;
+        int j;
+        double cutOff=0.0;
+
+        /* get rid off near zero elements on the left by shifting left */
+        for (j=0; j<filter2Size; j++)
+        {
+            int k;
+            cutOff += FFABS(filter2[i*filter2Size]);
+
+            if (cutOff > SWS_MAX_REDUCE_CUTOFF) break;
+
+            /* preserve Monotonicity because the core can't handle the filter otherwise */
+            if (i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
+
+            // Move filter coeffs left
+            for (k=1; k<filter2Size; k++)
+                filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
+            filter2[i*filter2Size + k - 1]= 0.0;
+            (*filterPos)[i]++;
+        }
+
+        cutOff=0.0;
+        /* count near zeros on the right */
+        for (j=filter2Size-1; j>0; j--)
+        {
+            cutOff += FFABS(filter2[i*filter2Size + j]);
+
+            if (cutOff > SWS_MAX_REDUCE_CUTOFF) break;
+            min--;
+        }
+
+        if (min>minFilterSize) minFilterSize= min;
+    }
+
+    if (flags & SWS_CPU_CAPS_ALTIVEC) {
+        // we can handle the special case 4,
+        // so we don't want to go to the full 8
+        if (minFilterSize < 5)
+            filterAlign = 4;
+
+        // we really don't want to waste our time
+        // doing useless computation, so fall-back on
+        // the scalar C code for very small filter.
+        // vectorizing is worth it only if you have
+        // decent-sized vector.
+        if (minFilterSize < 3)
+            filterAlign = 1;
+    }
+
+    if (flags & SWS_CPU_CAPS_MMX) {
+        // special case for unscaled vertical filtering
+        if (minFilterSize == 1 && filterAlign == 2)
+            filterAlign= 1;
+    }
+
+    ASSERT(minFilterSize > 0)
+    filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
+    ASSERT(filterSize > 0)
+    filter= av_malloc(filterSize*dstW*sizeof(double));
+    if (filterSize >= MAX_FILTER_SIZE)
+        return -1;
+    *outFilterSize= filterSize;
+
+    if (flags&SWS_PRINT_INFO)
+        av_log(NULL, AV_LOG_VERBOSE, "SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
+    /* try to reduce the filter-size (step2 reduce it) */
+    for (i=0; i<dstW; i++)
+    {
+        int j;
+
+        for (j=0; j<filterSize; j++)
+        {
+            if (j>=filter2Size) filter[i*filterSize + j]= 0.0;
+            else               filter[i*filterSize + j]= filter2[i*filter2Size + j];
+        }
+    }
+    av_free(filter2); filter2=NULL;
+
+
+    //FIXME try to align filterpos if possible
+
+    //fix borders
+    for (i=0; i<dstW; i++)
+    {
+        int j;
+        if ((*filterPos)[i] < 0)
+        {
+            // Move filter coeffs left to compensate for filterPos
+            for (j=1; j<filterSize; j++)
+            {
+                int left= FFMAX(j + (*filterPos)[i], 0);
+                filter[i*filterSize + left] += filter[i*filterSize + j];
+                filter[i*filterSize + j]=0;
+            }
+            (*filterPos)[i]= 0;
+        }
+
+        if ((*filterPos)[i] + filterSize > srcW)
+        {
+            int shift= (*filterPos)[i] + filterSize - srcW;
+            // Move filter coeffs right to compensate for filterPos
+            for (j=filterSize-2; j>=0; j--)
+            {
+                int right= FFMIN(j + shift, filterSize-1);
+                filter[i*filterSize +right] += filter[i*filterSize +j];
+                filter[i*filterSize +j]=0;
+            }
+            (*filterPos)[i]= srcW - filterSize;
+        }
+    }
+
+    // Note the +1 is for the MMXscaler which reads over the end
+    /* align at 16 for AltiVec (needed by hScale_altivec_real) */
+    *outFilter= av_mallocz(*outFilterSize*(dstW+1)*sizeof(int16_t));
+
+    /* Normalize & Store in outFilter */
+    for (i=0; i<dstW; i++)
+    {
+        int j;
+        double error=0;
+        double sum=0;
+        double scale= one;
+
+        for (j=0; j<filterSize; j++)
+        {
+            sum+= filter[i*filterSize + j];
+        }
+        scale/= sum;
+        for (j=0; j<*outFilterSize; j++)
+        {
+            double v= filter[i*filterSize + j]*scale + error;
+            int intV= floor(v + 0.5);
+            (*outFilter)[i*(*outFilterSize) + j]= intV;
+            error = v - intV;
+        }
+    }
+
+    (*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
+    for (i=0; i<*outFilterSize; i++)
+    {
+        int j= dstW*(*outFilterSize);
+        (*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
+    }
+
+    av_free(filter);
+    return 0;
+}
+
+#ifdef COMPILE_MMX2
+static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode, int16_t *filter, int32_t *filterPos, int numSplits)
+{
+    uint8_t *fragmentA;
+    long imm8OfPShufW1A;
+    long imm8OfPShufW2A;
+    long fragmentLengthA;
+    uint8_t *fragmentB;
+    long imm8OfPShufW1B;
+    long imm8OfPShufW2B;
+    long fragmentLengthB;
+    int fragmentPos;
+
+    int xpos, i;
+
+    // create an optimized horizontal scaling routine
+
+    //code fragment
+
+    asm volatile(
+        "jmp                         9f                 \n\t"
+    // Begin
+        "0:                                             \n\t"
+        "movq    (%%"REG_d", %%"REG_a"), %%mm3          \n\t"
+        "movd    (%%"REG_c", %%"REG_S"), %%mm0          \n\t"
+        "movd   1(%%"REG_c", %%"REG_S"), %%mm1          \n\t"
+        "punpcklbw                %%mm7, %%mm1          \n\t"
+        "punpcklbw                %%mm7, %%mm0          \n\t"
+        "pshufw                   $0xFF, %%mm1, %%mm1   \n\t"
+        "1:                                             \n\t"
+        "pshufw                   $0xFF, %%mm0, %%mm0   \n\t"
+        "2:                                             \n\t"
+        "psubw                    %%mm1, %%mm0          \n\t"
+        "movl   8(%%"REG_b", %%"REG_a"), %%esi          \n\t"
+        "pmullw                   %%mm3, %%mm0          \n\t"
+        "psllw                       $7, %%mm1          \n\t"
+        "paddw                    %%mm1, %%mm0          \n\t"
+
+        "movq                     %%mm0, (%%"REG_D", %%"REG_a") \n\t"
+
+        "add                         $8, %%"REG_a"      \n\t"
+    // End
+        "9:                                             \n\t"
+//        "int $3                                         \n\t"
+        "lea                         0b, %0             \n\t"
+        "lea                         1b, %1             \n\t"
+        "lea                         2b, %2             \n\t"
+        "dec                         %1                 \n\t"
+        "dec                         %2                 \n\t"
+        "sub                         %0, %1             \n\t"
+        "sub                         %0, %2             \n\t"
+        "lea                         9b, %3             \n\t"
+        "sub                         %0, %3             \n\t"
+
+
+        :"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
+        "=r" (fragmentLengthA)
+    );
+
+    asm volatile(
+        "jmp                         9f                 \n\t"
+    // Begin
+        "0:                                             \n\t"
+        "movq    (%%"REG_d", %%"REG_a"), %%mm3          \n\t"
+        "movd    (%%"REG_c", %%"REG_S"), %%mm0          \n\t"
+        "punpcklbw                %%mm7, %%mm0          \n\t"
+        "pshufw                   $0xFF, %%mm0, %%mm1   \n\t"
+        "1:                                             \n\t"
+        "pshufw                   $0xFF, %%mm0, %%mm0   \n\t"
+        "2:                                             \n\t"
+        "psubw                    %%mm1, %%mm0          \n\t"
+        "movl   8(%%"REG_b", %%"REG_a"), %%esi          \n\t"
+        "pmullw                   %%mm3, %%mm0          \n\t"
+        "psllw                       $7, %%mm1          \n\t"
+        "paddw                    %%mm1, %%mm0          \n\t"
+
+        "movq                     %%mm0, (%%"REG_D", %%"REG_a") \n\t"
+
+        "add                         $8, %%"REG_a"      \n\t"
+    // End
+        "9:                                             \n\t"
+//        "int                       $3                   \n\t"
+        "lea                         0b, %0             \n\t"
+        "lea                         1b, %1             \n\t"
+        "lea                         2b, %2             \n\t"
+        "dec                         %1                 \n\t"
+        "dec                         %2                 \n\t"
+        "sub                         %0, %1             \n\t"
+        "sub                         %0, %2             \n\t"
+        "lea                         9b, %3             \n\t"
+        "sub                         %0, %3             \n\t"
+
+
+        :"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
+        "=r" (fragmentLengthB)
+    );
+
+    xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
+    fragmentPos=0;
+
+    for (i=0; i<dstW/numSplits; i++)
+    {
+        int xx=xpos>>16;
+
+        if ((i&3) == 0)
+        {
+            int a=0;
+            int b=((xpos+xInc)>>16) - xx;
+            int c=((xpos+xInc*2)>>16) - xx;
+            int d=((xpos+xInc*3)>>16) - xx;
+
+            filter[i  ] = (( xpos         & 0xFFFF) ^ 0xFFFF)>>9;
+            filter[i+1] = (((xpos+xInc  ) & 0xFFFF) ^ 0xFFFF)>>9;
+            filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
+            filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
+            filterPos[i/2]= xx;
+
+            if (d+1<4)
+            {
+                int maxShift= 3-(d+1);
+                int shift=0;
+
+                memcpy(funnyCode + fragmentPos, fragmentB, fragmentLengthB);
+
+                funnyCode[fragmentPos + imm8OfPShufW1B]=
+                    (a+1) | ((b+1)<<2) | ((c+1)<<4) | ((d+1)<<6);
+                funnyCode[fragmentPos + imm8OfPShufW2B]=
+                    a | (b<<2) | (c<<4) | (d<<6);
+
+                if (i+3>=dstW) shift=maxShift; //avoid overread
+                else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
+
+                if (shift && i>=shift)
+                {
+                    funnyCode[fragmentPos + imm8OfPShufW1B]+= 0x55*shift;
+                    funnyCode[fragmentPos + imm8OfPShufW2B]+= 0x55*shift;
+                    filterPos[i/2]-=shift;
+                }
+
+                fragmentPos+= fragmentLengthB;
+            }
+            else
+            {
+                int maxShift= 3-d;
+                int shift=0;
+
+                memcpy(funnyCode + fragmentPos, fragmentA, fragmentLengthA);
+
+                funnyCode[fragmentPos + imm8OfPShufW1A]=
+                funnyCode[fragmentPos + imm8OfPShufW2A]=
+                    a | (b<<2) | (c<<4) | (d<<6);
+
+                if (i+4>=dstW) shift=maxShift; //avoid overread
+                else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //partial align
+
+                if (shift && i>=shift)
+                {
+                    funnyCode[fragmentPos + imm8OfPShufW1A]+= 0x55*shift;
+                    funnyCode[fragmentPos + imm8OfPShufW2A]+= 0x55*shift;
+                    filterPos[i/2]-=shift;
+                }
+
+                fragmentPos+= fragmentLengthA;
+            }
+
+            funnyCode[fragmentPos]= RET;
+        }
+        xpos+=xInc;
+    }
+    filterPos[i/2]= xpos>>16; // needed to jump to the next part
+}
+#endif /* COMPILE_MMX2 */
+
+static void globalInit(void){
+    // generating tables:
+    int i;
+    for (i=0; i<768; i++){
+        int c= av_clip_uint8(i-256);
+        clip_table[i]=c;
+    }
+}
+
+static SwsFunc getSwsFunc(int flags){
+
+#if defined(RUNTIME_CPUDETECT) && defined (CONFIG_GPL)
+#if defined(ARCH_X86)
+    // ordered per speed fasterst first
+    if (flags & SWS_CPU_CAPS_MMX2)
+        return swScale_MMX2;
+    else if (flags & SWS_CPU_CAPS_3DNOW)
+        return swScale_3DNow;
+    else if (flags & SWS_CPU_CAPS_MMX)
+        return swScale_MMX;
+    else
+        return swScale_C;
+
+#else
+#ifdef ARCH_POWERPC
+    if (flags & SWS_CPU_CAPS_ALTIVEC)
+        return swScale_altivec;
+    else
+        return swScale_C;
+#endif
+    return swScale_C;
+#endif /* defined(ARCH_X86) */
+#else //RUNTIME_CPUDETECT
+#ifdef HAVE_MMX2
+    return swScale_MMX2;
+#elif defined (HAVE_3DNOW)
+    return swScale_3DNow;
+#elif defined (HAVE_MMX)
+    return swScale_MMX;
+#elif defined (HAVE_ALTIVEC)
+    return swScale_altivec;
+#else
+    return swScale_C;
+#endif
+#endif //!RUNTIME_CPUDETECT
+}
+
+static int PlanarToNV12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                               int srcSliceH, uint8_t* dstParam[], int dstStride[]){
+    uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
+    /* Copy Y plane */
+    if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
+        memcpy(dst, src[0], srcSliceH*dstStride[0]);
+    else
+    {
+        int i;
+        uint8_t *srcPtr= src[0];
+        uint8_t *dstPtr= dst;
+        for (i=0; i<srcSliceH; i++)
+        {
+            memcpy(dstPtr, srcPtr, c->srcW);
+            srcPtr+= srcStride[0];
+            dstPtr+= dstStride[0];
+        }
+    }
+    dst = dstParam[1] + dstStride[1]*srcSliceY/2;
+    if (c->dstFormat == PIX_FMT_NV12)
+        interleaveBytes( src[1],src[2],dst,c->srcW/2,srcSliceH/2,srcStride[1],srcStride[2],dstStride[0] );
+    else
+        interleaveBytes( src[2],src[1],dst,c->srcW/2,srcSliceH/2,srcStride[2],srcStride[1],dstStride[0] );
+
+    return srcSliceH;
+}
+
+static int PlanarToYuy2Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                               int srcSliceH, uint8_t* dstParam[], int dstStride[]){
+    uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
+
+    yv12toyuy2( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
+
+    return srcSliceH;
+}
+
+static int PlanarToUyvyWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                               int srcSliceH, uint8_t* dstParam[], int dstStride[]){
+    uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
+
+    yv12touyvy( src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0] );
+
+    return srcSliceH;
+}
+
+/* {RGB,BGR}{15,16,24,32} -> {RGB,BGR}{15,16,24,32} */
+static int rgb2rgbWrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                          int srcSliceH, uint8_t* dst[], int dstStride[]){
+    const int srcFormat= c->srcFormat;
+    const int dstFormat= c->dstFormat;
+    const int srcBpp= (fmt_depth(srcFormat) + 7) >> 3;
+    const int dstBpp= (fmt_depth(dstFormat) + 7) >> 3;
+    const int srcId= fmt_depth(srcFormat) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
+    const int dstId= fmt_depth(dstFormat) >> 2;
+    void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
+
+    /* BGR -> BGR */
+    if (  (isBGR(srcFormat) && isBGR(dstFormat))
+       || (isRGB(srcFormat) && isRGB(dstFormat))){
+        switch(srcId | (dstId<<4)){
+        case 0x34: conv= rgb16to15; break;
+        case 0x36: conv= rgb24to15; break;
+        case 0x38: conv= rgb32to15; break;
+        case 0x43: conv= rgb15to16; break;
+        case 0x46: conv= rgb24to16; break;
+        case 0x48: conv= rgb32to16; break;
+        case 0x63: conv= rgb15to24; break;
+        case 0x64: conv= rgb16to24; break;
+        case 0x68: conv= rgb32to24; break;
+        case 0x83: conv= rgb15to32; break;
+        case 0x84: conv= rgb16to32; break;
+        case 0x86: conv= rgb24to32; break;
+        default: av_log(c, AV_LOG_ERROR, "swScaler: internal error %s -> %s converter\n",
+                        sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
+        }
+    }else if (  (isBGR(srcFormat) && isRGB(dstFormat))
+             || (isRGB(srcFormat) && isBGR(dstFormat))){
+        switch(srcId | (dstId<<4)){
+        case 0x33: conv= rgb15tobgr15; break;
+        case 0x34: conv= rgb16tobgr15; break;
+        case 0x36: conv= rgb24tobgr15; break;
+        case 0x38: conv= rgb32tobgr15; break;
+        case 0x43: conv= rgb15tobgr16; break;
+        case 0x44: conv= rgb16tobgr16; break;
+        case 0x46: conv= rgb24tobgr16; break;
+        case 0x48: conv= rgb32tobgr16; break;
+        case 0x63: conv= rgb15tobgr24; break;
+        case 0x64: conv= rgb16tobgr24; break;
+        case 0x66: conv= rgb24tobgr24; break;
+        case 0x68: conv= rgb32tobgr24; break;
+        case 0x83: conv= rgb15tobgr32; break;
+        case 0x84: conv= rgb16tobgr32; break;
+        case 0x86: conv= rgb24tobgr32; break;
+        case 0x88: conv= rgb32tobgr32; break;
+        default: av_log(c, AV_LOG_ERROR, "swScaler: internal error %s -> %s converter\n",
+                        sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
+        }
+    }else{
+        av_log(c, AV_LOG_ERROR, "swScaler: internal error %s -> %s converter\n",
+               sws_format_name(srcFormat), sws_format_name(dstFormat));
+    }
+
+    if (dstStride[0]*srcBpp == srcStride[0]*dstBpp)
+        conv(src[0], dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
+    else
+    {
+        int i;
+        uint8_t *srcPtr= src[0];
+        uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
+
+        for (i=0; i<srcSliceH; i++)
+        {
+            conv(srcPtr, dstPtr, c->srcW*srcBpp);
+            srcPtr+= srcStride[0];
+            dstPtr+= dstStride[0];
+        }
+    }
+    return srcSliceH;
+}
+
+static int bgr24toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                              int srcSliceH, uint8_t* dst[], int dstStride[]){
+
+    rgb24toyv12(
+        src[0],
+        dst[0]+ srcSliceY    *dstStride[0],
+        dst[1]+(srcSliceY>>1)*dstStride[1],
+        dst[2]+(srcSliceY>>1)*dstStride[2],
+        c->srcW, srcSliceH,
+        dstStride[0], dstStride[1], srcStride[0]);
+    return srcSliceH;
+}
+
+static int yvu9toyv12Wrapper(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                             int srcSliceH, uint8_t* dst[], int dstStride[]){
+    int i;
+
+    /* copy Y */
+    if (srcStride[0]==dstStride[0] && srcStride[0] > 0)
+        memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
+    else{
+        uint8_t *srcPtr= src[0];
+        uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
+
+        for (i=0; i<srcSliceH; i++)
+        {
+            memcpy(dstPtr, srcPtr, c->srcW);
+            srcPtr+= srcStride[0];
+            dstPtr+= dstStride[0];
+        }
+    }
+
+    if (c->dstFormat==PIX_FMT_YUV420P){
+        planar2x(src[1], dst[1], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[1]);
+        planar2x(src[2], dst[2], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[2]);
+    }else{
+        planar2x(src[1], dst[2], c->chrSrcW, c->chrSrcH, srcStride[1], dstStride[2]);
+        planar2x(src[2], dst[1], c->chrSrcW, c->chrSrcH, srcStride[2], dstStride[1]);
+    }
+    return srcSliceH;
+}
+
+/* unscaled copy like stuff (assumes nearly identical formats) */
+static int simpleCopy(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                      int srcSliceH, uint8_t* dst[], int dstStride[]){
+
+    if (isPacked(c->srcFormat))
+    {
+        if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
+            memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
+        else
+        {
+            int i;
+            uint8_t *srcPtr= src[0];
+            uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
+            int length=0;
+
+            /* universal length finder */
+            while(length+c->srcW <= FFABS(dstStride[0])
+               && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
+            ASSERT(length!=0);
+
+            for (i=0; i<srcSliceH; i++)
+            {
+                memcpy(dstPtr, srcPtr, length);
+                srcPtr+= srcStride[0];
+                dstPtr+= dstStride[0];
+            }
+        }
+    }
+    else
+    { /* Planar YUV or gray */
+        int plane;
+        for (plane=0; plane<3; plane++)
+        {
+            int length= plane==0 ? c->srcW  : -((-c->srcW  )>>c->chrDstHSubSample);
+            int y=      plane==0 ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
+            int height= plane==0 ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
+
+            if ((isGray(c->srcFormat) || isGray(c->dstFormat)) && plane>0)
+            {
+                if (!isGray(c->dstFormat))
+                    memset(dst[plane], 128, dstStride[plane]*height);
+            }
+            else
+            {
+                if (dstStride[plane]==srcStride[plane] && srcStride[plane] > 0)
+                    memcpy(dst[plane] + dstStride[plane]*y, src[plane], height*dstStride[plane]);
+                else
+                {
+                    int i;
+                    uint8_t *srcPtr= src[plane];
+                    uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
+                    for (i=0; i<height; i++)
+                    {
+                        memcpy(dstPtr, srcPtr, length);
+                        srcPtr+= srcStride[plane];
+                        dstPtr+= dstStride[plane];
+                    }
+                }
+            }
+        }
+    }
+    return srcSliceH;
+}
+
+static int gray16togray(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                        int srcSliceH, uint8_t* dst[], int dstStride[]){
+
+    int length= c->srcW;
+    int y=      srcSliceY;
+    int height= srcSliceH;
+    int i, j;
+    uint8_t *srcPtr= src[0];
+    uint8_t *dstPtr= dst[0] + dstStride[0]*y;
+
+    if (!isGray(c->dstFormat)){
+        int height= -((-srcSliceH)>>c->chrDstVSubSample);
+        memset(dst[1], 128, dstStride[1]*height);
+        memset(dst[2], 128, dstStride[2]*height);
+    }
+    if (c->srcFormat == PIX_FMT_GRAY16LE) srcPtr++;
+    for (i=0; i<height; i++)
+    {
+        for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
+        srcPtr+= srcStride[0];
+        dstPtr+= dstStride[0];
+    }
+    return srcSliceH;
+}
+
+static int graytogray16(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                        int srcSliceH, uint8_t* dst[], int dstStride[]){
+
+    int length= c->srcW;
+    int y=      srcSliceY;
+    int height= srcSliceH;
+    int i, j;
+    uint8_t *srcPtr= src[0];
+    uint8_t *dstPtr= dst[0] + dstStride[0]*y;
+    for (i=0; i<height; i++)
+    {
+        for (j=0; j<length; j++)
+        {
+            dstPtr[j<<1] = srcPtr[j];
+            dstPtr[(j<<1)+1] = srcPtr[j];
+        }
+        srcPtr+= srcStride[0];
+        dstPtr+= dstStride[0];
+    }
+    return srcSliceH;
+}
+
+static int gray16swap(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                      int srcSliceH, uint8_t* dst[], int dstStride[]){
+
+    int length= c->srcW;
+    int y=      srcSliceY;
+    int height= srcSliceH;
+    int i, j;
+    uint16_t *srcPtr= src[0];
+    uint16_t *dstPtr= dst[0] + dstStride[0]*y/2;
+    for (i=0; i<height; i++)
+    {
+        for (j=0; j<length; j++) dstPtr[j] = bswap_16(srcPtr[j]);
+        srcPtr+= srcStride[0]/2;
+        dstPtr+= dstStride[0]/2;
+    }
+    return srcSliceH;
+}
+
+
+static void getSubSampleFactors(int *h, int *v, int format){
+    switch(format){
+    case PIX_FMT_UYVY422:
+    case PIX_FMT_YUYV422:
+        *h=1;
+        *v=0;
+        break;
+    case PIX_FMT_YUV420P:
+    case PIX_FMT_GRAY16BE:
+    case PIX_FMT_GRAY16LE:
+    case PIX_FMT_GRAY8: //FIXME remove after different subsamplings are fully implemented
+    case PIX_FMT_NV12:
+    case PIX_FMT_NV21:
+        *h=1;
+        *v=1;
+        break;
+    case PIX_FMT_YUV410P:
+        *h=2;
+        *v=2;
+        break;
+    case PIX_FMT_YUV444P:
+        *h=0;
+        *v=0;
+        break;
+    case PIX_FMT_YUV422P:
+        *h=1;
+        *v=0;
+        break;
+    case PIX_FMT_YUV411P:
+        *h=2;
+        *v=0;
+        break;
+    default:
+        *h=0;
+        *v=0;
+        break;
+    }
+}
+
+static uint16_t roundToInt16(int64_t f){
+    int r= (f + (1<<15))>>16;
+         if (r<-0x7FFF) return 0x8000;
+    else if (r> 0x7FFF) return 0x7FFF;
+    else                return r;
+}
+
+/**
+ * @param inv_table the yuv2rgb coeffs, normally Inverse_Table_6_9[x]
+ * @param fullRange if 1 then the luma range is 0..255 if 0 its 16..235
+ * @return -1 if not supported
+ */
+int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation){
+    int64_t crv =  inv_table[0];
+    int64_t cbu =  inv_table[1];
+    int64_t cgu = -inv_table[2];
+    int64_t cgv = -inv_table[3];
+    int64_t cy  = 1<<16;
+    int64_t oy  = 0;
+
+    if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
+    memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
+    memcpy(c->dstColorspaceTable,     table, sizeof(int)*4);
+
+    c->brightness= brightness;
+    c->contrast  = contrast;
+    c->saturation= saturation;
+    c->srcRange  = srcRange;
+    c->dstRange  = dstRange;
+
+    c->uOffset=   0x0400040004000400LL;
+    c->vOffset=   0x0400040004000400LL;
+
+    if (!srcRange){
+        cy= (cy*255) / 219;
+        oy= 16<<16;
+    }else{
+        crv= (crv*224) / 255;
+        cbu= (cbu*224) / 255;
+        cgu= (cgu*224) / 255;
+        cgv= (cgv*224) / 255;
+    }
+
+    cy = (cy *contrast             )>>16;
+    crv= (crv*contrast * saturation)>>32;
+    cbu= (cbu*contrast * saturation)>>32;
+    cgu= (cgu*contrast * saturation)>>32;
+    cgv= (cgv*contrast * saturation)>>32;
+
+    oy -= 256*brightness;
+
+    c->yCoeff=    roundToInt16(cy *8192) * 0x0001000100010001ULL;
+    c->vrCoeff=   roundToInt16(crv*8192) * 0x0001000100010001ULL;
+    c->ubCoeff=   roundToInt16(cbu*8192) * 0x0001000100010001ULL;
+    c->vgCoeff=   roundToInt16(cgv*8192) * 0x0001000100010001ULL;
+    c->ugCoeff=   roundToInt16(cgu*8192) * 0x0001000100010001ULL;
+    c->yOffset=   roundToInt16(oy *   8) * 0x0001000100010001ULL;
+
+    yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
+    //FIXME factorize
+
+#ifdef COMPILE_ALTIVEC
+    if (c->flags & SWS_CPU_CAPS_ALTIVEC)
+        yuv2rgb_altivec_init_tables (c, inv_table, brightness, contrast, saturation);
+#endif
+    return 0;
+}
+
+/**
+ * @return -1 if not supported
+ */
+int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation){
+    if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
+
+    *inv_table = c->srcColorspaceTable;
+    *table     = c->dstColorspaceTable;
+    *srcRange  = c->srcRange;
+    *dstRange  = c->dstRange;
+    *brightness= c->brightness;
+    *contrast  = c->contrast;
+    *saturation= c->saturation;
+
+    return 0;
+}
+
+static int handle_jpeg(int *format)
+{
+    switch (*format) {
+        case PIX_FMT_YUVJ420P:
+            *format = PIX_FMT_YUV420P;
+            return 1;
+        case PIX_FMT_YUVJ422P:
+            *format = PIX_FMT_YUV422P;
+            return 1;
+        case PIX_FMT_YUVJ444P:
+            *format = PIX_FMT_YUV444P;
+            return 1;
+        default:
+            return 0;
+    }
+}
+
+SwsContext *sws_getContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
+                           SwsFilter *srcFilter, SwsFilter *dstFilter, double *param){
+
+    SwsContext *c;
+    int i;
+    int usesVFilter, usesHFilter;
+    int unscaled, needsDither;
+    int srcRange, dstRange;
+    SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
+#if defined(ARCH_X86)
+    if (flags & SWS_CPU_CAPS_MMX)
+        asm volatile("emms\n\t"::: "memory");
+#endif
+
+#if !defined(RUNTIME_CPUDETECT) || !defined (CONFIG_GPL) //ensure that the flags match the compiled variant if cpudetect is off
+    flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC);
+#ifdef HAVE_MMX2
+    flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
+#elif defined (HAVE_3DNOW)
+    flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
+#elif defined (HAVE_MMX)
+    flags |= SWS_CPU_CAPS_MMX;
+#elif defined (HAVE_ALTIVEC)
+    flags |= SWS_CPU_CAPS_ALTIVEC;
+#endif
+#endif /* RUNTIME_CPUDETECT */
+    if (clip_table[512] != 255) globalInit();
+    if (rgb15to16 == NULL) sws_rgb2rgb_init(flags);
+
+    unscaled = (srcW == dstW && srcH == dstH);
+    needsDither= (isBGR(dstFormat) || isRGB(dstFormat))
+        && (fmt_depth(dstFormat))<24
+        && ((fmt_depth(dstFormat))<(fmt_depth(srcFormat)) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
+
+    srcRange = handle_jpeg(&srcFormat);
+    dstRange = handle_jpeg(&dstFormat);
+
+    if (!isSupportedIn(srcFormat))
+    {
+        av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as input format\n", sws_format_name(srcFormat));
+        return NULL;
+    }
+    if (!isSupportedOut(dstFormat))
+    {
+        av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as output format\n", sws_format_name(dstFormat));
+        return NULL;
+    }
+
+    /* sanity check */
+    if (srcW<4 || srcH<1 || dstW<8 || dstH<1) //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
+    {
+        av_log(NULL, AV_LOG_ERROR, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
+               srcW, srcH, dstW, dstH);
+        return NULL;
+    }
+
+    if (!dstFilter) dstFilter= &dummyFilter;
+    if (!srcFilter) srcFilter= &dummyFilter;
+
+    c= av_mallocz(sizeof(SwsContext));
+
+    c->av_class = &sws_context_class;
+    c->srcW= srcW;
+    c->srcH= srcH;
+    c->dstW= dstW;
+    c->dstH= dstH;
+    c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW;
+    c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH;
+    c->flags= flags;
+    c->dstFormat= dstFormat;
+    c->srcFormat= srcFormat;
+    c->vRounder= 4* 0x0001000100010001ULL;
+
+    usesHFilter= usesVFilter= 0;
+    if (dstFilter->lumV!=NULL && dstFilter->lumV->length>1) usesVFilter=1;
+    if (dstFilter->lumH!=NULL && dstFilter->lumH->length>1) usesHFilter=1;
+    if (dstFilter->chrV!=NULL && dstFilter->chrV->length>1) usesVFilter=1;
+    if (dstFilter->chrH!=NULL && dstFilter->chrH->length>1) usesHFilter=1;
+    if (srcFilter->lumV!=NULL && srcFilter->lumV->length>1) usesVFilter=1;
+    if (srcFilter->lumH!=NULL && srcFilter->lumH->length>1) usesHFilter=1;
+    if (srcFilter->chrV!=NULL && srcFilter->chrV->length>1) usesVFilter=1;
+    if (srcFilter->chrH!=NULL && srcFilter->chrH->length>1) usesHFilter=1;
+
+    getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
+    getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
+
+    // reuse chroma for 2 pixles rgb/bgr unless user wants full chroma interpolation
+    if ((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
+
+    // drop some chroma lines if the user wants it
+    c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
+    c->chrSrcVSubSample+= c->vChrDrop;
+
+    // drop every 2. pixel for chroma calculation unless user wants full chroma
+    if ((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP)
+      && srcFormat!=PIX_FMT_RGB8      && srcFormat!=PIX_FMT_BGR8
+      && srcFormat!=PIX_FMT_RGB4      && srcFormat!=PIX_FMT_BGR4
+      && srcFormat!=PIX_FMT_RGB4_BYTE && srcFormat!=PIX_FMT_BGR4_BYTE)
+        c->chrSrcHSubSample=1;
+
+    if (param){
+        c->param[0] = param[0];
+        c->param[1] = param[1];
+    }else{
+        c->param[0] =
+        c->param[1] = SWS_PARAM_DEFAULT;
+    }
+
+    c->chrIntHSubSample= c->chrDstHSubSample;
+    c->chrIntVSubSample= c->chrSrcVSubSample;
+
+    // Note the -((-x)>>y) is so that we always round toward +inf.
+    c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
+    c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
+    c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
+    c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
+
+    sws_setColorspaceDetails(c, Inverse_Table_6_9[SWS_CS_DEFAULT], srcRange, Inverse_Table_6_9[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16);
+
+    /* unscaled special Cases */
+    if (unscaled && !usesHFilter && !usesVFilter)
+    {
+        /* yv12_to_nv12 */
+        if (srcFormat == PIX_FMT_YUV420P && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21))
+        {
+            c->swScale= PlanarToNV12Wrapper;
+        }
+#ifdef CONFIG_GPL
+        /* yuv2bgr */
+        if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P) && (isBGR(dstFormat) || isRGB(dstFormat)))
+        {
+            c->swScale= yuv2rgb_get_func_ptr(c);
+        }
+#endif
+
+        if ( srcFormat==PIX_FMT_YUV410P && dstFormat==PIX_FMT_YUV420P )
+        {
+            c->swScale= yvu9toyv12Wrapper;
+        }
+
+        /* bgr24toYV12 */
+        if (srcFormat==PIX_FMT_BGR24 && dstFormat==PIX_FMT_YUV420P)
+            c->swScale= bgr24toyv12Wrapper;
+
+        /* rgb/bgr -> rgb/bgr (no dither needed forms) */
+        if (  (isBGR(srcFormat) || isRGB(srcFormat))
+           && (isBGR(dstFormat) || isRGB(dstFormat))
+           && srcFormat != PIX_FMT_BGR8      && dstFormat != PIX_FMT_BGR8
+           && srcFormat != PIX_FMT_RGB8      && dstFormat != PIX_FMT_RGB8
+           && srcFormat != PIX_FMT_BGR4      && dstFormat != PIX_FMT_BGR4
+           && srcFormat != PIX_FMT_RGB4      && dstFormat != PIX_FMT_RGB4
+           && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
+           && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
+           && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
+           && !needsDither)
+             c->swScale= rgb2rgbWrapper;
+
+        /* LQ converters if -sws 0 or -sws 4*/
+        if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)){
+            /* rgb/bgr -> rgb/bgr (dither needed forms) */
+            if ( (isBGR(srcFormat) || isRGB(srcFormat))
+              && (isBGR(dstFormat) || isRGB(dstFormat))
+              && needsDither)
+                c->swScale= rgb2rgbWrapper;
+
+            /* yv12_to_yuy2 */
+            if (srcFormat == PIX_FMT_YUV420P &&
+                (dstFormat == PIX_FMT_YUYV422 || dstFormat == PIX_FMT_UYVY422))
+            {
+                if (dstFormat == PIX_FMT_YUYV422)
+                    c->swScale= PlanarToYuy2Wrapper;
+                else
+                    c->swScale= PlanarToUyvyWrapper;
+            }
+        }
+
+#ifdef COMPILE_ALTIVEC
+        if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
+            ((srcFormat == PIX_FMT_YUV420P &&
+             (dstFormat == PIX_FMT_YUYV422 || dstFormat == PIX_FMT_UYVY422)))) {
+          // unscaled YV12 -> packed YUV, we want speed
+          if (dstFormat == PIX_FMT_YUYV422)
+              c->swScale= yv12toyuy2_unscaled_altivec;
+          else
+              c->swScale= yv12touyvy_unscaled_altivec;
+        }
+#endif
+
+        /* simple copy */
+        if (  srcFormat == dstFormat
+            || (isPlanarYUV(srcFormat) && isGray(dstFormat))
+            || (isPlanarYUV(dstFormat) && isGray(srcFormat)) )
+        {
+            c->swScale= simpleCopy;
+        }
+
+        /* gray16{le,be} conversions */
+        if (isGray16(srcFormat) && (isPlanarYUV(dstFormat) || (dstFormat == PIX_FMT_GRAY8)))
+        {
+            c->swScale= gray16togray;
+        }
+        if ((isPlanarYUV(srcFormat) || (srcFormat == PIX_FMT_GRAY8)) && isGray16(dstFormat))
+        {
+            c->swScale= graytogray16;
+        }
+        if (srcFormat != dstFormat && isGray16(srcFormat) && isGray16(dstFormat))
+        {
+            c->swScale= gray16swap;
+        }
+
+        if (c->swScale){
+            if (flags&SWS_PRINT_INFO)
+                av_log(c, AV_LOG_INFO, "SwScaler: using unscaled %s -> %s special converter\n",
+                                sws_format_name(srcFormat), sws_format_name(dstFormat));
+            return c;
+        }
+    }
+
+    if (flags & SWS_CPU_CAPS_MMX2)
+    {
+        c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
+        if (!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR))
+        {
+            if (flags&SWS_PRINT_INFO)
+                av_log(c, AV_LOG_INFO, "SwScaler: output Width is not a multiple of 32 -> no MMX2 scaler\n");
+        }
+        if (usesHFilter) c->canMMX2BeUsed=0;
+    }
+    else
+        c->canMMX2BeUsed=0;
+
+    c->chrXInc= ((c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
+    c->chrYInc= ((c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
+
+    // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
+    // but only for the FAST_BILINEAR mode otherwise do correct scaling
+    // n-2 is the last chrominance sample available
+    // this is not perfect, but noone shuld notice the difference, the more correct variant
+    // would be like the vertical one, but that would require some special code for the
+    // first and last pixel
+    if (flags&SWS_FAST_BILINEAR)
+    {
+        if (c->canMMX2BeUsed)
+        {
+            c->lumXInc+= 20;
+            c->chrXInc+= 20;
+        }
+        //we don't use the x86asm scaler if mmx is available
+        else if (flags & SWS_CPU_CAPS_MMX)
+        {
+            c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
+            c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
+        }
+    }
+
+    /* precalculate horizontal scaler filter coefficients */
+    {
+        const int filterAlign=
+            (flags & SWS_CPU_CAPS_MMX) ? 4 :
+            (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
+            1;
+
+        initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
+                   srcW      ,       dstW, filterAlign, 1<<14,
+                   (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC)  : flags,
+                   srcFilter->lumH, dstFilter->lumH, c->param);
+        initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
+                   c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
+                   (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
+                   srcFilter->chrH, dstFilter->chrH, c->param);
+
+#define MAX_FUNNY_CODE_SIZE 10000
+#if defined(COMPILE_MMX2)
+// can't downscale !!!
+        if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
+        {
+#ifdef MAP_ANONYMOUS
+            c->funnyYCode = (uint8_t*)mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+            c->funnyUVCode = (uint8_t*)mmap(NULL, MAX_FUNNY_CODE_SIZE, PROT_EXEC | PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
+#else
+            c->funnyYCode = av_malloc(MAX_FUNNY_CODE_SIZE);
+            c->funnyUVCode = av_malloc(MAX_FUNNY_CODE_SIZE);
+#endif
+
+            c->lumMmx2Filter   = av_malloc((dstW        /8+8)*sizeof(int16_t));
+            c->chrMmx2Filter   = av_malloc((c->chrDstW  /4+8)*sizeof(int16_t));
+            c->lumMmx2FilterPos= av_malloc((dstW      /2/8+8)*sizeof(int32_t));
+            c->chrMmx2FilterPos= av_malloc((c->chrDstW/2/4+8)*sizeof(int32_t));
+
+            initMMX2HScaler(      dstW, c->lumXInc, c->funnyYCode , c->lumMmx2Filter, c->lumMmx2FilterPos, 8);
+            initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
+        }
+#endif /* defined(COMPILE_MMX2) */
+    } // Init Horizontal stuff
+
+
+
+    /* precalculate vertical scaler filter coefficients */
+    {
+        const int filterAlign=
+            (flags & SWS_CPU_CAPS_MMX) && (flags & SWS_ACCURATE_RND) ? 2 :
+            (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
+            1;
+
+        initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
+                   srcH      ,        dstH, filterAlign, (1<<12)-4,
+                   (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC)  : flags,
+                   srcFilter->lumV, dstFilter->lumV, c->param);
+        initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
+                   c->chrSrcH, c->chrDstH, filterAlign, (1<<12)-4,
+                   (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
+                   srcFilter->chrV, dstFilter->chrV, c->param);
+
+#ifdef HAVE_ALTIVEC
+        c->vYCoeffsBank = av_malloc(sizeof (vector signed short)*c->vLumFilterSize*c->dstH);
+        c->vCCoeffsBank = av_malloc(sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH);
+
+        for (i=0;i<c->vLumFilterSize*c->dstH;i++) {
+            int j;
+            short *p = (short *)&c->vYCoeffsBank[i];
+            for (j=0;j<8;j++)
+                p[j] = c->vLumFilter[i];
+        }
+
+        for (i=0;i<c->vChrFilterSize*c->chrDstH;i++) {
+            int j;
+            short *p = (short *)&c->vCCoeffsBank[i];
+            for (j=0;j<8;j++)
+                p[j] = c->vChrFilter[i];
+        }
+#endif
+    }
+
+    // Calculate Buffer Sizes so that they won't run out while handling these damn slices
+    c->vLumBufSize= c->vLumFilterSize;
+    c->vChrBufSize= c->vChrFilterSize;
+    for (i=0; i<dstH; i++)
+    {
+        int chrI= i*c->chrDstH / dstH;
+        int nextSlice= FFMAX(c->vLumFilterPos[i   ] + c->vLumFilterSize - 1,
+                           ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
+
+        nextSlice>>= c->chrSrcVSubSample;
+        nextSlice<<= c->chrSrcVSubSample;
+        if (c->vLumFilterPos[i   ] + c->vLumBufSize < nextSlice)
+            c->vLumBufSize= nextSlice - c->vLumFilterPos[i   ];
+        if (c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
+            c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
+    }
+
+    // allocate pixbufs (we use dynamic allocation because otherwise we would need to
+    c->lumPixBuf= av_malloc(c->vLumBufSize*2*sizeof(int16_t*));
+    c->chrPixBuf= av_malloc(c->vChrBufSize*2*sizeof(int16_t*));
+    //Note we need at least one pixel more at the end because of the mmx code (just in case someone wanna replace the 4000/8000)
+    /* align at 16 bytes for AltiVec */
+    for (i=0; i<c->vLumBufSize; i++)
+        c->lumPixBuf[i]= c->lumPixBuf[i+c->vLumBufSize]= av_mallocz(4000);
+    for (i=0; i<c->vChrBufSize; i++)
+        c->chrPixBuf[i]= c->chrPixBuf[i+c->vChrBufSize]= av_malloc(8000);
+
+    //try to avoid drawing green stuff between the right end and the stride end
+    for (i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, 8000);
+
+    ASSERT(c->chrDstH <= dstH)
+
+    if (flags&SWS_PRINT_INFO)
+    {
+#ifdef DITHER1XBPP
+        char *dither= " dithered";
+#else
+        char *dither= "";
+#endif
+        if (flags&SWS_FAST_BILINEAR)
+            av_log(c, AV_LOG_INFO, "SwScaler: FAST_BILINEAR scaler, ");
+        else if (flags&SWS_BILINEAR)
+            av_log(c, AV_LOG_INFO, "SwScaler: BILINEAR scaler, ");
+        else if (flags&SWS_BICUBIC)
+            av_log(c, AV_LOG_INFO, "SwScaler: BICUBIC scaler, ");
+        else if (flags&SWS_X)
+            av_log(c, AV_LOG_INFO, "SwScaler: Experimental scaler, ");
+        else if (flags&SWS_POINT)
+            av_log(c, AV_LOG_INFO, "SwScaler: Nearest Neighbor / POINT scaler, ");
+        else if (flags&SWS_AREA)
+            av_log(c, AV_LOG_INFO, "SwScaler: Area Averageing scaler, ");
+        else if (flags&SWS_BICUBLIN)
+            av_log(c, AV_LOG_INFO, "SwScaler: luma BICUBIC / chroma BILINEAR scaler, ");
+        else if (flags&SWS_GAUSS)
+            av_log(c, AV_LOG_INFO, "SwScaler: Gaussian scaler, ");
+        else if (flags&SWS_SINC)
+            av_log(c, AV_LOG_INFO, "SwScaler: Sinc scaler, ");
+        else if (flags&SWS_LANCZOS)
+            av_log(c, AV_LOG_INFO, "SwScaler: Lanczos scaler, ");
+        else if (flags&SWS_SPLINE)
+            av_log(c, AV_LOG_INFO, "SwScaler: Bicubic spline scaler, ");
+        else
+            av_log(c, AV_LOG_INFO, "SwScaler: ehh flags invalid?! ");
+
+        if (dstFormat==PIX_FMT_BGR555 || dstFormat==PIX_FMT_BGR565)
+            av_log(c, AV_LOG_INFO, "from %s to%s %s ",
+                   sws_format_name(srcFormat), dither, sws_format_name(dstFormat));
+        else
+            av_log(c, AV_LOG_INFO, "from %s to %s ",
+                   sws_format_name(srcFormat), sws_format_name(dstFormat));
+
+        if (flags & SWS_CPU_CAPS_MMX2)
+            av_log(c, AV_LOG_INFO, "using MMX2\n");
+        else if (flags & SWS_CPU_CAPS_3DNOW)
+            av_log(c, AV_LOG_INFO, "using 3DNOW\n");
+        else if (flags & SWS_CPU_CAPS_MMX)
+            av_log(c, AV_LOG_INFO, "using MMX\n");
+        else if (flags & SWS_CPU_CAPS_ALTIVEC)
+            av_log(c, AV_LOG_INFO, "using AltiVec\n");
+        else
+            av_log(c, AV_LOG_INFO, "using C\n");
+    }
+
+    if (flags & SWS_PRINT_INFO)
+    {
+        if (flags & SWS_CPU_CAPS_MMX)
+        {
+            if (c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
+                av_log(c, AV_LOG_VERBOSE, "SwScaler: using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
+            else
+            {
+                if (c->hLumFilterSize==4)
+                    av_log(c, AV_LOG_VERBOSE, "SwScaler: using 4-tap MMX scaler for horizontal luminance scaling\n");
+                else if (c->hLumFilterSize==8)
+                    av_log(c, AV_LOG_VERBOSE, "SwScaler: using 8-tap MMX scaler for horizontal luminance scaling\n");
+                else
+                    av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap MMX scaler for horizontal luminance scaling\n");
+
+                if (c->hChrFilterSize==4)
+                    av_log(c, AV_LOG_VERBOSE, "SwScaler: using 4-tap MMX scaler for horizontal chrominance scaling\n");
+                else if (c->hChrFilterSize==8)
+                    av_log(c, AV_LOG_VERBOSE, "SwScaler: using 8-tap MMX scaler for horizontal chrominance scaling\n");
+                else
+                    av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap MMX scaler for horizontal chrominance scaling\n");
+            }
+        }
+        else
+        {
+#if defined(ARCH_X86)
+            av_log(c, AV_LOG_VERBOSE, "SwScaler: using X86-Asm scaler for horizontal scaling\n");
+#else
+            if (flags & SWS_FAST_BILINEAR)
+                av_log(c, AV_LOG_VERBOSE, "SwScaler: using FAST_BILINEAR C scaler for horizontal scaling\n");
+            else
+                av_log(c, AV_LOG_VERBOSE, "SwScaler: using C scaler for horizontal scaling\n");
+#endif
+        }
+        if (isPlanarYUV(dstFormat))
+        {
+            if (c->vLumFilterSize==1)
+                av_log(c, AV_LOG_VERBOSE, "SwScaler: using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
+            else
+                av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
+        }
+        else
+        {
+            if (c->vLumFilterSize==1 && c->vChrFilterSize==2)
+                av_log(c, AV_LOG_VERBOSE, "SwScaler: using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
+                       "SwScaler:       2-tap scaler for vertical chrominance scaling (BGR)\n",(flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
+            else if (c->vLumFilterSize==2 && c->vChrFilterSize==2)
+                av_log(c, AV_LOG_VERBOSE, "SwScaler: using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
+            else
+                av_log(c, AV_LOG_VERBOSE, "SwScaler: using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
+        }
+
+        if (dstFormat==PIX_FMT_BGR24)
+            av_log(c, AV_LOG_VERBOSE, "SwScaler: using %s YV12->BGR24 Converter\n",
+                   (flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
+        else if (dstFormat==PIX_FMT_RGB32)
+            av_log(c, AV_LOG_VERBOSE, "SwScaler: using %s YV12->BGR32 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
+        else if (dstFormat==PIX_FMT_BGR565)
+            av_log(c, AV_LOG_VERBOSE, "SwScaler: using %s YV12->BGR16 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
+        else if (dstFormat==PIX_FMT_BGR555)
+            av_log(c, AV_LOG_VERBOSE, "SwScaler: using %s YV12->BGR15 Converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
+
+        av_log(c, AV_LOG_VERBOSE, "SwScaler: %dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
+    }
+    if (flags & SWS_PRINT_INFO)
+    {
+        av_log(c, AV_LOG_DEBUG, "SwScaler:Lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
+               c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
+        av_log(c, AV_LOG_DEBUG, "SwScaler:Chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
+               c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
+    }
+
+    c->swScale= getSwsFunc(flags);
+    return c;
+}
+
+/**
+ * swscale warper, so we don't need to export the SwsContext.
+ * assumes planar YUV to be in YUV order instead of YVU
+ */
+int sws_scale(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+              int srcSliceH, uint8_t* dst[], int dstStride[]){
+    int i;
+    uint8_t* src2[4]= {src[0], src[1], src[2]};
+    uint32_t pal[256];
+    if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
+        av_log(c, AV_LOG_ERROR, "swScaler: slices start in the middle!\n");
+        return 0;
+    }
+    if (c->sliceDir == 0) {
+        if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
+    }
+
+    if (c->srcFormat == PIX_FMT_PAL8){
+        for (i=0; i<256; i++){
+            int p= ((uint32_t*)(src[1]))[i];
+            int r= (p>>16)&0xFF;
+            int g= (p>> 8)&0xFF;
+            int b=  p     &0xFF;
+            int y= av_clip_uint8(((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16 );
+            int u= av_clip_uint8(((RU*r + GU*g + BU*b)>>RGB2YUV_SHIFT) + 128);
+            int v= av_clip_uint8(((RV*r + GV*g + BV*b)>>RGB2YUV_SHIFT) + 128);
+            pal[i]= y + (u<<8) + (v<<16);
+        }
+        src2[1]= pal;
+    }
+
+    // copy strides, so they can safely be modified
+    if (c->sliceDir == 1) {
+        // slices go from top to bottom
+        int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2]};
+        int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2]};
+        return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst, dstStride2);
+    } else {
+        // slices go from bottom to top => we flip the image internally
+        uint8_t* dst2[4]= {dst[0] + (c->dstH-1)*dstStride[0],
+                           dst[1] + ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1],
+                           dst[2] + ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2]};
+        int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2]};
+        int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2]};
+
+        src2[0] += (srcSliceH-1)*srcStride[0];
+        if (c->srcFormat != PIX_FMT_PAL8)
+            src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
+        src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
+
+        return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
+    }
+}
+
+/**
+ * swscale warper, so we don't need to export the SwsContext
+ */
+int sws_scale_ordered(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
+                      int srcSliceH, uint8_t* dst[], int dstStride[]){
+    return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
+}
+
+SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
+                                float lumaSharpen, float chromaSharpen,
+                                float chromaHShift, float chromaVShift,
+                                int verbose)
+{
+    SwsFilter *filter= av_malloc(sizeof(SwsFilter));
+
+    if (lumaGBlur!=0.0){
+        filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
+        filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
+    }else{
+        filter->lumH= sws_getIdentityVec();
+        filter->lumV= sws_getIdentityVec();
+    }
+
+    if (chromaGBlur!=0.0){
+        filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
+        filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
+    }else{
+        filter->chrH= sws_getIdentityVec();
+        filter->chrV= sws_getIdentityVec();
+    }
+
+    if (chromaSharpen!=0.0){
+        SwsVector *id= sws_getIdentityVec();
+        sws_scaleVec(filter->chrH, -chromaSharpen);
+        sws_scaleVec(filter->chrV, -chromaSharpen);
+        sws_addVec(filter->chrH, id);
+        sws_addVec(filter->chrV, id);
+        sws_freeVec(id);
+    }
+
+    if (lumaSharpen!=0.0){
+        SwsVector *id= sws_getIdentityVec();
+        sws_scaleVec(filter->lumH, -lumaSharpen);
+        sws_scaleVec(filter->lumV, -lumaSharpen);
+        sws_addVec(filter->lumH, id);
+        sws_addVec(filter->lumV, id);
+        sws_freeVec(id);
+    }
+
+    if (chromaHShift != 0.0)
+        sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
+
+    if (chromaVShift != 0.0)
+        sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
+
+    sws_normalizeVec(filter->chrH, 1.0);
+    sws_normalizeVec(filter->chrV, 1.0);
+    sws_normalizeVec(filter->lumH, 1.0);
+    sws_normalizeVec(filter->lumV, 1.0);
+
+    if (verbose) sws_printVec(filter->chrH);
+    if (verbose) sws_printVec(filter->lumH);
+
+    return filter;
+}
+
+/**
+ * returns a normalized gaussian curve used to filter stuff
+ * quality=3 is high quality, lowwer is lowwer quality
+ */
+SwsVector *sws_getGaussianVec(double variance, double quality){
+    const int length= (int)(variance*quality + 0.5) | 1;
+    int i;
+    double *coeff= av_malloc(length*sizeof(double));
+    double middle= (length-1)*0.5;
+    SwsVector *vec= av_malloc(sizeof(SwsVector));
+
+    vec->coeff= coeff;
+    vec->length= length;
+
+    for (i=0; i<length; i++)
+    {
+        double dist= i-middle;
+        coeff[i]= exp( -dist*dist/(2*variance*variance) ) / sqrt(2*variance*PI);
+    }
+
+    sws_normalizeVec(vec, 1.0);
+
+    return vec;
+}
+
+SwsVector *sws_getConstVec(double c, int length){
+    int i;
+    double *coeff= av_malloc(length*sizeof(double));
+    SwsVector *vec= av_malloc(sizeof(SwsVector));
+
+    vec->coeff= coeff;
+    vec->length= length;
+
+    for (i=0; i<length; i++)
+        coeff[i]= c;
+
+    return vec;
+}
+
+
+SwsVector *sws_getIdentityVec(void){
+    return sws_getConstVec(1.0, 1);
+}
+
+double sws_dcVec(SwsVector *a){
+    int i;
+    double sum=0;
+
+    for (i=0; i<a->length; i++)
+        sum+= a->coeff[i];
+
+    return sum;
+}
+
+void sws_scaleVec(SwsVector *a, double scalar){
+    int i;
+
+    for (i=0; i<a->length; i++)
+        a->coeff[i]*= scalar;
+}
+
+void sws_normalizeVec(SwsVector *a, double height){
+    sws_scaleVec(a, height/sws_dcVec(a));
+}
+
+static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b){
+    int length= a->length + b->length - 1;
+    double *coeff= av_malloc(length*sizeof(double));
+    int i, j;
+    SwsVector *vec= av_malloc(sizeof(SwsVector));
+
+    vec->coeff= coeff;
+    vec->length= length;
+
+    for (i=0; i<length; i++) coeff[i]= 0.0;
+
+    for (i=0; i<a->length; i++)
+    {
+        for (j=0; j<b->length; j++)
+        {
+            coeff[i+j]+= a->coeff[i]*b->coeff[j];
+        }
+    }
+
+    return vec;
+}
+
+static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b){
+    int length= FFMAX(a->length, b->length);
+    double *coeff= av_malloc(length*sizeof(double));
+    int i;
+    SwsVector *vec= av_malloc(sizeof(SwsVector));
+
+    vec->coeff= coeff;
+    vec->length= length;
+
+    for (i=0; i<length; i++) coeff[i]= 0.0;
+
+    for (i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
+    for (i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
+
+    return vec;
+}
+
+static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b){
+    int length= FFMAX(a->length, b->length);
+    double *coeff= av_malloc(length*sizeof(double));
+    int i;
+    SwsVector *vec= av_malloc(sizeof(SwsVector));
+
+    vec->coeff= coeff;
+    vec->length= length;
+
+    for (i=0; i<length; i++) coeff[i]= 0.0;
+
+    for (i=0; i<a->length; i++) coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
+    for (i=0; i<b->length; i++) coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
+
+    return vec;
+}
+
+/* shift left / or right if "shift" is negative */
+static SwsVector *sws_getShiftedVec(SwsVector *a, int shift){
+    int length= a->length + FFABS(shift)*2;
+    double *coeff= av_malloc(length*sizeof(double));
+    int i;
+    SwsVector *vec= av_malloc(sizeof(SwsVector));
+
+    vec->coeff= coeff;
+    vec->length= length;
+
+    for (i=0; i<length; i++) coeff[i]= 0.0;
+
+    for (i=0; i<a->length; i++)
+    {
+        coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
+    }
+
+    return vec;
+}
+
+void sws_shiftVec(SwsVector *a, int shift){
+    SwsVector *shifted= sws_getShiftedVec(a, shift);
+    av_free(a->coeff);
+    a->coeff= shifted->coeff;
+    a->length= shifted->length;
+    av_free(shifted);
+}
+
+void sws_addVec(SwsVector *a, SwsVector *b){
+    SwsVector *sum= sws_sumVec(a, b);
+    av_free(a->coeff);
+    a->coeff= sum->coeff;
+    a->length= sum->length;
+    av_free(sum);
+}
+
+void sws_subVec(SwsVector *a, SwsVector *b){
+    SwsVector *diff= sws_diffVec(a, b);
+    av_free(a->coeff);
+    a->coeff= diff->coeff;
+    a->length= diff->length;
+    av_free(diff);
+}
+
+void sws_convVec(SwsVector *a, SwsVector *b){
+    SwsVector *conv= sws_getConvVec(a, b);
+    av_free(a->coeff);
+    a->coeff= conv->coeff;
+    a->length= conv->length;
+    av_free(conv);
+}
+
+SwsVector *sws_cloneVec(SwsVector *a){
+    double *coeff= av_malloc(a->length*sizeof(double));
+    int i;
+    SwsVector *vec= av_malloc(sizeof(SwsVector));
+
+    vec->coeff= coeff;
+    vec->length= a->length;
+
+    for (i=0; i<a->length; i++) coeff[i]= a->coeff[i];
+
+    return vec;
+}
+
+void sws_printVec(SwsVector *a){
+    int i;
+    double max=0;
+    double min=0;
+    double range;
+
+    for (i=0; i<a->length; i++)
+        if (a->coeff[i]>max) max= a->coeff[i];
+
+    for (i=0; i<a->length; i++)
+        if (a->coeff[i]<min) min= a->coeff[i];
+
+    range= max - min;
+
+    for (i=0; i<a->length; i++)
+    {
+        int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
+        av_log(NULL, AV_LOG_DEBUG, "%1.3f ", a->coeff[i]);
+        for (;x>0; x--) av_log(NULL, AV_LOG_DEBUG, " ");
+        av_log(NULL, AV_LOG_DEBUG, "|\n");
+    }
+}
+
+void sws_freeVec(SwsVector *a){
+    if (!a) return;
+    av_free(a->coeff);
+    a->coeff=NULL;
+    a->length=0;
+    av_free(a);
+}
+
+void sws_freeFilter(SwsFilter *filter){
+    if (!filter) return;
+
+    if (filter->lumH) sws_freeVec(filter->lumH);
+    if (filter->lumV) sws_freeVec(filter->lumV);
+    if (filter->chrH) sws_freeVec(filter->chrH);
+    if (filter->chrV) sws_freeVec(filter->chrV);
+    av_free(filter);
+}
+
+
+void sws_freeContext(SwsContext *c){
+    int i;
+    if (!c) return;
+
+    if (c->lumPixBuf)
+    {
+        for (i=0; i<c->vLumBufSize; i++)
+        {
+            av_free(c->lumPixBuf[i]);
+            c->lumPixBuf[i]=NULL;
+        }
+        av_free(c->lumPixBuf);
+        c->lumPixBuf=NULL;
+    }
+
+    if (c->chrPixBuf)
+    {
+        for (i=0; i<c->vChrBufSize; i++)
+        {
+            av_free(c->chrPixBuf[i]);
+            c->chrPixBuf[i]=NULL;
+        }
+        av_free(c->chrPixBuf);
+        c->chrPixBuf=NULL;
+    }
+
+    av_free(c->vLumFilter);
+    c->vLumFilter = NULL;
+    av_free(c->vChrFilter);
+    c->vChrFilter = NULL;
+    av_free(c->hLumFilter);
+    c->hLumFilter = NULL;
+    av_free(c->hChrFilter);
+    c->hChrFilter = NULL;
+#ifdef HAVE_ALTIVEC
+    av_free(c->vYCoeffsBank);
+    c->vYCoeffsBank = NULL;
+    av_free(c->vCCoeffsBank);
+    c->vCCoeffsBank = NULL;
+#endif
+
+    av_free(c->vLumFilterPos);
+    c->vLumFilterPos = NULL;
+    av_free(c->vChrFilterPos);
+    c->vChrFilterPos = NULL;
+    av_free(c->hLumFilterPos);
+    c->hLumFilterPos = NULL;
+    av_free(c->hChrFilterPos);
+    c->hChrFilterPos = NULL;
+
+#if defined(ARCH_X86) && defined(CONFIG_GPL)
+#ifdef MAP_ANONYMOUS
+    if (c->funnyYCode) munmap(c->funnyYCode, MAX_FUNNY_CODE_SIZE);
+    if (c->funnyUVCode) munmap(c->funnyUVCode, MAX_FUNNY_CODE_SIZE);
+#else
+    av_free(c->funnyYCode);
+    av_free(c->funnyUVCode);
+#endif
+    c->funnyYCode=NULL;
+    c->funnyUVCode=NULL;
+#endif /* defined(ARCH_X86) */
+
+    av_free(c->lumMmx2Filter);
+    c->lumMmx2Filter=NULL;
+    av_free(c->chrMmx2Filter);
+    c->chrMmx2Filter=NULL;
+    av_free(c->lumMmx2FilterPos);
+    c->lumMmx2FilterPos=NULL;
+    av_free(c->chrMmx2FilterPos);
+    c->chrMmx2FilterPos=NULL;
+    av_free(c->yuvTable);
+    c->yuvTable=NULL;
+
+    av_free(c);
+}
+
+/**
+ * Checks if context is valid or reallocs a new one instead.
+ * If context is NULL, just calls sws_getContext() to get a new one.
+ * Otherwise, checks if the parameters are the same already saved in context.
+ * If that is the case, returns the current context.
+ * Otherwise, frees context and gets a new one.
+ *
+ * Be warned that srcFilter, dstFilter are not checked, they are
+ * asumed to remain valid.
+ */
+struct SwsContext *sws_getCachedContext(struct SwsContext *context,
+                                        int srcW, int srcH, int srcFormat,
+                                        int dstW, int dstH, int dstFormat, int flags,
+                                        SwsFilter *srcFilter, SwsFilter *dstFilter, double *param)
+{
+    if (context != NULL) {
+        if ((context->srcW != srcW) || (context->srcH != srcH) ||
+            (context->srcFormat != srcFormat) ||
+            (context->dstW != dstW) || (context->dstH != dstH) ||
+            (context->dstFormat != dstFormat) || (context->flags != flags) ||
+            (context->param != param))
+        {
+            sws_freeContext(context);
+            context = NULL;
+        }
+    }
+    if (context == NULL) {
+        return sws_getContext(srcW, srcH, srcFormat,
+                              dstW, dstH, dstFormat, flags,
+                              srcFilter, dstFilter, param);
+    }
+    return context;
+}
+
index cf8006d..a86ef45 100644 (file)
@@ -43,63 +43,63 @@ extern "C" {
 #define LIBSWSCALE_IDENT        "SwS" AV_STRINGIFY(LIBSWSCALE_VERSION)
 
 /* values for the flags, the stuff on the command line is different */
-#define SWS_FAST_BILINEAR 1
-#define SWS_BILINEAR 2
-#define SWS_BICUBIC  4
-#define SWS_X        8
-#define SWS_POINT    0x10
-#define SWS_AREA     0x20
-#define SWS_BICUBLIN 0x40
-#define SWS_GAUSS    0x80
-#define SWS_SINC     0x100
-#define SWS_LANCZOS  0x200
-#define SWS_SPLINE   0x400
+#define SWS_FAST_BILINEAR     1
+#define SWS_BILINEAR          2
+#define SWS_BICUBIC           4
+#define SWS_X                 8
+#define SWS_POINT          0x10
+#define SWS_AREA           0x20
+#define SWS_BICUBLIN       0x40
+#define SWS_GAUSS          0x80
+#define SWS_SINC          0x100
+#define SWS_LANCZOS       0x200
+#define SWS_SPLINE        0x400
 
-#define SWS_SRC_V_CHR_DROP_MASK                0x30000
-#define SWS_SRC_V_CHR_DROP_SHIFT       16
+#define SWS_SRC_V_CHR_DROP_MASK     0x30000
+#define SWS_SRC_V_CHR_DROP_SHIFT    16
 
-#define SWS_PARAM_DEFAULT              123456
+#define SWS_PARAM_DEFAULT           123456
 
-#define SWS_PRINT_INFO         0x1000
+#define SWS_PRINT_INFO              0x1000
 
 //the following 3 flags are not completly implemented
 //internal chrominace subsamling info
-#define SWS_FULL_CHR_H_INT     0x2000
+#define SWS_FULL_CHR_H_INT    0x2000
 //input subsampling info
-#define SWS_FULL_CHR_H_INP     0x4000
-#define SWS_DIRECT_BGR         0x8000
-#define SWS_ACCURATE_RND       0x40000
+#define SWS_FULL_CHR_H_INP    0x4000
+#define SWS_DIRECT_BGR        0x8000
+#define SWS_ACCURATE_RND      0x40000
 
-#define SWS_CPU_CAPS_MMX   0x80000000
-#define SWS_CPU_CAPS_MMX2  0x20000000
-#define SWS_CPU_CAPS_3DNOW 0x40000000
-#define SWS_CPU_CAPS_ALTIVEC 0x10000000
+#define SWS_CPU_CAPS_MMX      0x80000000
+#define SWS_CPU_CAPS_MMX2     0x20000000
+#define SWS_CPU_CAPS_3DNOW    0x40000000
+#define SWS_CPU_CAPS_ALTIVEC  0x10000000
 
 #define SWS_MAX_REDUCE_CUTOFF 0.002
 
-#define SWS_CS_ITU709          1
-#define SWS_CS_FCC             4
-#define SWS_CS_ITU601          5
-#define SWS_CS_ITU624          5
-#define SWS_CS_SMPTE170M       5
-#define SWS_CS_SMPTE240M       7
-#define SWS_CS_DEFAULT                 5
+#define SWS_CS_ITU709         1
+#define SWS_CS_FCC            4
+#define SWS_CS_ITU601         5
+#define SWS_CS_ITU624         5
+#define SWS_CS_SMPTE170M      5
+#define SWS_CS_SMPTE240M      7
+#define SWS_CS_DEFAULT        5
 
 
 
 // when used for filters they must have an odd number of elements
 // coeffs cannot be shared between vectors
 typedef struct {
-       double *coeff;
-       int length;
+    double *coeff;
+    int length;
 } SwsVector;
 
 // vectors can be shared
 typedef struct {
-       SwsVector *lumH;
-       SwsVector *lumV;
-       SwsVector *chrH;
-       SwsVector *chrV;
+    SwsVector *lumH;
+    SwsVector *lumV;
+    SwsVector *chrH;
+    SwsVector *chrV;
 } SwsFilter;
 
 struct SwsContext;
@@ -107,11 +107,11 @@ struct SwsContext;
 void sws_freeContext(struct SwsContext *swsContext);
 
 struct SwsContext *sws_getContext(int srcW, int srcH, int srcFormat, int dstW, int dstH, int dstFormat, int flags,
-                        SwsFilter *srcFilter, SwsFilter *dstFilter, double *param);
+                                  SwsFilter *srcFilter, SwsFilter *dstFilter, double *param);
 int sws_scale(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
-                           int srcSliceH, uint8_t* dst[], int dstStride[]);
+              int srcSliceH, uint8_t* dst[], int dstStride[]);
 int sws_scale_ordered(struct SwsContext *context, uint8_t* src[], int srcStride[], int srcSliceY,
-                           int srcSliceH, uint8_t* dst[], int dstStride[]) attribute_deprecated;
+                      int srcSliceH, uint8_t* dst[], int dstStride[]) attribute_deprecated;
 
 
 int sws_setColorspaceDetails(struct SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation);
@@ -131,15 +131,15 @@ void sws_printVec(SwsVector *a);
 void sws_freeVec(SwsVector *a);
 
 SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
-                               float lumaSarpen, float chromaSharpen,
-                               float chromaHShift, float chromaVShift,
-                               int verbose);
+                                float lumaSarpen, float chromaSharpen,
+                                float chromaHShift, float chromaVShift,
+                                int verbose);
 void sws_freeFilter(SwsFilter *filter);
 
 struct SwsContext *sws_getCachedContext(struct SwsContext *context,
-                int srcW, int srcH, int srcFormat,
-                int dstW, int dstH, int dstFormat, int flags,
-                SwsFilter *srcFilter, SwsFilter *dstFilter, double *param);
+                                        int srcW, int srcH, int srcFormat,
+                                        int dstW, int dstH, int dstFormat, int flags,
+                                        SwsFilter *srcFilter, SwsFilter *dstFilter, double *param);
 
 #ifdef __cplusplus
 }
index d5b7d60..5aa99e5 100644 (file)
@@ -40,114 +40,114 @@ typedef int (*SwsFunc)(struct SwsContext *context, uint8_t* src[], int srcStride
 
 /* this struct should be aligned on at least 32-byte boundary */
 typedef struct SwsContext{
-        /**
-         * info on struct for av_log
-         */
-        AVClass *av_class;
-
-       /**
-        *
-        * Note the src,dst,srcStride,dstStride will be copied, in the sws_scale() warper so they can freely be modified here
-        */
-       SwsFunc swScale;
-       int srcW, srcH, dstH;
-       int chrSrcW, chrSrcH, chrDstW, chrDstH;
-       int lumXInc, chrXInc;
-       int lumYInc, chrYInc;
-       int dstFormat, srcFormat;               ///< format 4:2:0 type is always YV12
-       int origDstFormat, origSrcFormat;       ///< format
-       int chrSrcHSubSample, chrSrcVSubSample;
-       int chrIntHSubSample, chrIntVSubSample;
-       int chrDstHSubSample, chrDstVSubSample;
-       int vChrDrop;
-        int sliceDir;
-       double param[2];
-
-       int16_t **lumPixBuf;
-       int16_t **chrPixBuf;
-       int16_t *hLumFilter;
-       int16_t *hLumFilterPos;
-       int16_t *hChrFilter;
-       int16_t *hChrFilterPos;
-       int16_t *vLumFilter;
-       int16_t *vLumFilterPos;
-       int16_t *vChrFilter;
-       int16_t *vChrFilterPos;
-
-       uint8_t formatConvBuffer[4000]; //FIXME dynamic alloc, but we have to change a lot of code for this to be useful
-
-       int hLumFilterSize;
-       int hChrFilterSize;
-       int vLumFilterSize;
-       int vChrFilterSize;
-       int vLumBufSize;
-       int vChrBufSize;
-
-       uint8_t *funnyYCode;
-       uint8_t *funnyUVCode;
-       int32_t *lumMmx2FilterPos;
-       int32_t *chrMmx2FilterPos;
-       int16_t *lumMmx2Filter;
-       int16_t *chrMmx2Filter;
-
-       int canMMX2BeUsed;
-
-       int lastInLumBuf;
-       int lastInChrBuf;
-       int lumBufIndex;
-       int chrBufIndex;
-       int dstY;
-       int flags;
-       void * yuvTable;                        // pointer to the yuv->rgb table start so it can be freed()
-       uint8_t * table_rV[256];
-       uint8_t * table_gU[256];
-       int    table_gV[256];
-       uint8_t * table_bU[256];
-
-       //Colorspace stuff
-       int contrast, brightness, saturation;   // for sws_getColorspaceDetails
-       int srcColorspaceTable[4];
-       int dstColorspaceTable[4];
-       int srcRange, dstRange;
-
-#define RED_DITHER   "0*8"
-#define GREEN_DITHER "1*8"
-#define BLUE_DITHER  "2*8"
-#define Y_COEFF      "3*8"
-#define VR_COEFF     "4*8"
-#define UB_COEFF     "5*8"
-#define VG_COEFF     "6*8"
-#define UG_COEFF     "7*8"
-#define Y_OFFSET     "8*8"
-#define U_OFFSET     "9*8"
-#define V_OFFSET     "10*8"
+    /**
+     * info on struct for av_log
+     */
+    AVClass *av_class;
+
+    /**
+     *
+     * Note the src,dst,srcStride,dstStride will be copied, in the sws_scale() warper so they can freely be modified here
+     */
+    SwsFunc swScale;
+    int srcW, srcH, dstH;
+    int chrSrcW, chrSrcH, chrDstW, chrDstH;
+    int lumXInc, chrXInc;
+    int lumYInc, chrYInc;
+    int dstFormat, srcFormat;               ///< format 4:2:0 type is always YV12
+    int origDstFormat, origSrcFormat;       ///< format
+    int chrSrcHSubSample, chrSrcVSubSample;
+    int chrIntHSubSample, chrIntVSubSample;
+    int chrDstHSubSample, chrDstVSubSample;
+    int vChrDrop;
+    int sliceDir;
+    double param[2];
+
+    int16_t **lumPixBuf;
+    int16_t **chrPixBuf;
+    int16_t *hLumFilter;
+    int16_t *hLumFilterPos;
+    int16_t *hChrFilter;
+    int16_t *hChrFilterPos;
+    int16_t *vLumFilter;
+    int16_t *vLumFilterPos;
+    int16_t *vChrFilter;
+    int16_t *vChrFilterPos;
+
+    uint8_t formatConvBuffer[4000]; //FIXME dynamic alloc, but we have to change a lot of code for this to be useful
+
+    int hLumFilterSize;
+    int hChrFilterSize;
+    int vLumFilterSize;
+    int vChrFilterSize;
+    int vLumBufSize;
+    int vChrBufSize;
+
+    uint8_t *funnyYCode;
+    uint8_t *funnyUVCode;
+    int32_t *lumMmx2FilterPos;
+    int32_t *chrMmx2FilterPos;
+    int16_t *lumMmx2Filter;
+    int16_t *chrMmx2Filter;
+
+    int canMMX2BeUsed;
+
+    int lastInLumBuf;
+    int lastInChrBuf;
+    int lumBufIndex;
+    int chrBufIndex;
+    int dstY;
+    int flags;
+    void * yuvTable;            // pointer to the yuv->rgb table start so it can be freed()
+    uint8_t * table_rV[256];
+    uint8_t * table_gU[256];
+    int    table_gV[256];
+    uint8_t * table_bU[256];
+
+    //Colorspace stuff
+    int contrast, brightness, saturation;    // for sws_getColorspaceDetails
+    int srcColorspaceTable[4];
+    int dstColorspaceTable[4];
+    int srcRange, dstRange;
+
+#define RED_DITHER            "0*8"
+#define GREEN_DITHER          "1*8"
+#define BLUE_DITHER           "2*8"
+#define Y_COEFF               "3*8"
+#define VR_COEFF              "4*8"
+#define UB_COEFF              "5*8"
+#define VG_COEFF              "6*8"
+#define UG_COEFF              "7*8"
+#define Y_OFFSET              "8*8"
+#define U_OFFSET              "9*8"
+#define V_OFFSET              "10*8"
 #define LUM_MMX_FILTER_OFFSET "11*8"
 #define CHR_MMX_FILTER_OFFSET "11*8+4*4*256"
-#define DSTW_OFFSET  "11*8+4*4*256*2" //do not change, its hardcoded in the asm
-#define ESP_OFFSET  "11*8+4*4*256*2+8"
-#define VROUNDER_OFFSET "11*8+4*4*256*2+16"
-#define U_TEMP       "11*8+4*4*256*2+24"
-#define V_TEMP       "11*8+4*4*256*2+32"
-
-       uint64_t redDither   __attribute__((aligned(8)));
-       uint64_t greenDither __attribute__((aligned(8)));
-       uint64_t blueDither  __attribute__((aligned(8)));
-
-       uint64_t yCoeff      __attribute__((aligned(8)));
-       uint64_t vrCoeff     __attribute__((aligned(8)));
-       uint64_t ubCoeff     __attribute__((aligned(8)));
-       uint64_t vgCoeff     __attribute__((aligned(8)));
-       uint64_t ugCoeff     __attribute__((aligned(8)));
-       uint64_t yOffset     __attribute__((aligned(8)));
-       uint64_t uOffset     __attribute__((aligned(8)));
-       uint64_t vOffset     __attribute__((aligned(8)));
-       int32_t  lumMmxFilter[4*MAX_FILTER_SIZE];
-       int32_t  chrMmxFilter[4*MAX_FILTER_SIZE];
-       int dstW;
-       uint64_t esp __attribute__((aligned(8)));
-       uint64_t vRounder     __attribute__((aligned(8)));
-       uint64_t u_temp       __attribute__((aligned(8)));
-       uint64_t v_temp       __attribute__((aligned(8)));
+#define DSTW_OFFSET           "11*8+4*4*256*2" //do not change, its hardcoded in the asm
+#define ESP_OFFSET            "11*8+4*4*256*2+8"
+#define VROUNDER_OFFSET       "11*8+4*4*256*2+16"
+#define U_TEMP                "11*8+4*4*256*2+24"
+#define V_TEMP                "11*8+4*4*256*2+32"
+
+    uint64_t redDither   __attribute__((aligned(8)));
+    uint64_t greenDither __attribute__((aligned(8)));
+    uint64_t blueDither  __attribute__((aligned(8)));
+
+    uint64_t yCoeff      __attribute__((aligned(8)));
+    uint64_t vrCoeff     __attribute__((aligned(8)));
+    uint64_t ubCoeff     __attribute__((aligned(8)));
+    uint64_t vgCoeff     __attribute__((aligned(8)));
+    uint64_t ugCoeff     __attribute__((aligned(8)));
+    uint64_t yOffset     __attribute__((aligned(8)));
+    uint64_t uOffset     __attribute__((aligned(8)));
+    uint64_t vOffset     __attribute__((aligned(8)));
+    int32_t  lumMmxFilter[4*MAX_FILTER_SIZE];
+    int32_t  chrMmxFilter[4*MAX_FILTER_SIZE];
+    int dstW;
+    uint64_t esp          __attribute__((aligned(8)));
+    uint64_t vRounder     __attribute__((aligned(8)));
+    uint64_t u_temp       __attribute__((aligned(8)));
+    uint64_t v_temp       __attribute__((aligned(8)));
 
 #ifdef HAVE_ALTIVEC
 
@@ -158,7 +158,7 @@ typedef struct SwsContext{
   vector signed short   CGV;
   vector signed short   OY;
   vector unsigned short CSHIFT;
-  vector signed short *vYCoeffsBank, *vCCoeffsBank;
+  vector signed short   *vYCoeffsBank, *vCCoeffsBank;
 
 #endif
 
@@ -171,21 +171,21 @@ int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange,
 char *sws_format_name(int format);
 
 //FIXME replace this with something faster
-#define isPlanarYUV(x) ((x)==PIX_FMT_YUV410P || (x)==PIX_FMT_YUV420P   \
-                       || (x)==PIX_FMT_YUV411P || (x)==PIX_FMT_YUV422P \
-                       || (x)==PIX_FMT_YUV444P || (x)==PIX_FMT_NV12    \
-                       || (x)==PIX_FMT_NV21)
-#define isYUV(x)       ((x)==PIX_FMT_UYVY422 || (x)==PIX_FMT_YUYV422 || isPlanarYUV(x))
-#define isGray(x)      ((x)==PIX_FMT_GRAY8 || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE)
+#define isPlanarYUV(x) ((x)==PIX_FMT_YUV410P  || (x)==PIX_FMT_YUV420P \
+                     || (x)==PIX_FMT_YUV411P  || (x)==PIX_FMT_YUV422P \
+                     || (x)==PIX_FMT_YUV444P  || (x)==PIX_FMT_NV12    \
+                     || (x)==PIX_FMT_NV21)
+#define isYUV(x)       ((x)==PIX_FMT_UYVY422  || (x)==PIX_FMT_YUYV422  || isPlanarYUV(x))
+#define isGray(x)      ((x)==PIX_FMT_GRAY8    || (x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE)
 #define isGray16(x)    ((x)==PIX_FMT_GRAY16BE || (x)==PIX_FMT_GRAY16LE)
-#define isRGB(x)       ((x)==PIX_FMT_BGR32 || (x)==PIX_FMT_RGB24       \
-                       || (x)==PIX_FMT_RGB565 || (x)==PIX_FMT_RGB555   \
-                       || (x)==PIX_FMT_RGB8 || (x)==PIX_FMT_RGB4 || (x)==PIX_FMT_RGB4_BYTE     \
-                       || (x)==PIX_FMT_MONOBLACK)
-#define isBGR(x)       ((x)==PIX_FMT_RGB32 || (x)==PIX_FMT_BGR24       \
-                       || (x)==PIX_FMT_BGR565 || (x)==PIX_FMT_BGR555   \
-                       || (x)==PIX_FMT_BGR8 || (x)==PIX_FMT_BGR4 || (x)==PIX_FMT_BGR4_BYTE     \
-                       || (x)==PIX_FMT_MONOBLACK)
+#define isRGB(x)       ((x)==PIX_FMT_BGR32    || (x)==PIX_FMT_RGB24   \
+                     || (x)==PIX_FMT_RGB565   || (x)==PIX_FMT_RGB555  \
+                     || (x)==PIX_FMT_RGB8     || (x)==PIX_FMT_RGB4 || (x)==PIX_FMT_RGB4_BYTE \
+                     || (x)==PIX_FMT_MONOBLACK)
+#define isBGR(x)       ((x)==PIX_FMT_RGB32    || (x)==PIX_FMT_BGR24   \
+                     || (x)==PIX_FMT_BGR565   || (x)==PIX_FMT_BGR555  \
+                     || (x)==PIX_FMT_BGR8     || (x)==PIX_FMT_BGR4 || (x)==PIX_FMT_BGR4_BYTE \
+                     || (x)==PIX_FMT_MONOBLACK)
 
 static inline int fmt_depth(int fmt)
 {