malloc padding to avoid reading past the malloc()ed area.
[libav.git] / libavcodec / imgconvert.c
CommitLineData
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1/*
2 * Misc image convertion routines
524c6b63 3 * Copyright (c) 2001, 2002, 2003 Fabrice Bellard.
de6d9b64 4 *
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5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2 of the License, or (at your option) any later version.
de6d9b64 9 *
ff4ec49e 10 * This library is distributed in the hope that it will be useful,
de6d9b64 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
de6d9b64 14 *
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15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
de6d9b64 18 */
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19
20/**
1ab3d669 21 * @file imgconvert.c
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22 * Misc image convertion routines.
23 */
24
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25/* TODO:
26 * - write 'ffimg' program to test all the image related stuff
27 * - move all api to slice based system
28 * - integrate deinterlacing, postprocessing and scaling in the conversion process
29 */
983e3246 30
de6d9b64 31#include "avcodec.h"
85c242d8 32#include "dsputil.h"
de6d9b64 33
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34#ifdef USE_FASTMEMCPY
35#include "fastmemcpy.h"
36#endif
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37
38#ifdef HAVE_MMX
39#include "i386/mmx.h"
40#endif
524c6b63 41
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42#define xglue(x, y) x ## y
43#define glue(x, y) xglue(x, y)
44
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45#define FF_COLOR_RGB 0 /* RGB color space */
46#define FF_COLOR_GRAY 1 /* gray color space */
47#define FF_COLOR_YUV 2 /* YUV color space. 16 <= Y <= 235, 16 <= U, V <= 240 */
48#define FF_COLOR_YUV_JPEG 3 /* YUV color space. 0 <= Y <= 255, 0 <= U, V <= 255 */
49
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50#define FF_PIXEL_PLANAR 0 /* each channel has one component in AVPicture */
51#define FF_PIXEL_PACKED 1 /* only one components containing all the channels */
52#define FF_PIXEL_PALETTE 2 /* one components containing indexes for a palette */
53
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54typedef struct PixFmtInfo {
55 const char *name;
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56 uint8_t nb_channels; /* number of channels (including alpha) */
57 uint8_t color_type; /* color type (see FF_COLOR_xxx constants) */
58 uint8_t pixel_type; /* pixel storage type (see FF_PIXEL_xxx constants) */
0c1a9eda 59 uint8_t is_alpha : 1; /* true if alpha can be specified */
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60 uint8_t x_chroma_shift; /* X chroma subsampling factor is 2 ^ shift */
61 uint8_t y_chroma_shift; /* Y chroma subsampling factor is 2 ^ shift */
62 uint8_t depth; /* bit depth of the color components */
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63} PixFmtInfo;
64
65/* this table gives more information about formats */
66static PixFmtInfo pix_fmt_info[PIX_FMT_NB] = {
67 /* YUV formats */
68 [PIX_FMT_YUV420P] = {
ef9f7306 69 .name = "yuv420p",
7e7e5940 70 .nb_channels = 3,
b6147995 71 .color_type = FF_COLOR_YUV,
7e7e5940 72 .pixel_type = FF_PIXEL_PLANAR,
b6147995 73 .depth = 8,
ef9f7306 74 .x_chroma_shift = 1, .y_chroma_shift = 1,
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75 },
76 [PIX_FMT_YUV422P] = {
ef9f7306 77 .name = "yuv422p",
7e7e5940 78 .nb_channels = 3,
b6147995 79 .color_type = FF_COLOR_YUV,
7e7e5940 80 .pixel_type = FF_PIXEL_PLANAR,
b6147995 81 .depth = 8,
ef9f7306 82 .x_chroma_shift = 1, .y_chroma_shift = 0,
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83 },
84 [PIX_FMT_YUV444P] = {
ef9f7306 85 .name = "yuv444p",
7e7e5940 86 .nb_channels = 3,
b6147995 87 .color_type = FF_COLOR_YUV,
7e7e5940 88 .pixel_type = FF_PIXEL_PLANAR,
b6147995 89 .depth = 8,
ef9f7306 90 .x_chroma_shift = 0, .y_chroma_shift = 0,
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91 },
92 [PIX_FMT_YUV422] = {
ef9f7306 93 .name = "yuv422",
7e7e5940 94 .nb_channels = 1,
b6147995 95 .color_type = FF_COLOR_YUV,
7e7e5940 96 .pixel_type = FF_PIXEL_PACKED,
b6147995 97 .depth = 8,
ef9f7306 98 .x_chroma_shift = 1, .y_chroma_shift = 0,
524c6b63 99 },
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100 [PIX_FMT_UYVY422] = {
101 .name = "uyvy422",
102 .nb_channels = 1,
103 .color_type = FF_COLOR_YUV,
104 .pixel_type = FF_PIXEL_PACKED,
105 .depth = 8,
106 .x_chroma_shift = 1, .y_chroma_shift = 0,
107 },
524c6b63 108 [PIX_FMT_YUV410P] = {
ef9f7306 109 .name = "yuv410p",
7e7e5940 110 .nb_channels = 3,
b6147995 111 .color_type = FF_COLOR_YUV,
7e7e5940 112 .pixel_type = FF_PIXEL_PLANAR,
b6147995 113 .depth = 8,
ef9f7306 114 .x_chroma_shift = 2, .y_chroma_shift = 2,
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115 },
116 [PIX_FMT_YUV411P] = {
ef9f7306 117 .name = "yuv411p",
7e7e5940 118 .nb_channels = 3,
b6147995 119 .color_type = FF_COLOR_YUV,
7e7e5940 120 .pixel_type = FF_PIXEL_PLANAR,
b6147995 121 .depth = 8,
ef9f7306 122 .x_chroma_shift = 2, .y_chroma_shift = 0,
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123 },
124
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125 /* JPEG YUV */
126 [PIX_FMT_YUVJ420P] = {
127 .name = "yuvj420p",
7e7e5940 128 .nb_channels = 3,
b6147995 129 .color_type = FF_COLOR_YUV_JPEG,
7e7e5940 130 .pixel_type = FF_PIXEL_PLANAR,
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131 .depth = 8,
132 .x_chroma_shift = 1, .y_chroma_shift = 1,
133 },
134 [PIX_FMT_YUVJ422P] = {
135 .name = "yuvj422p",
7e7e5940 136 .nb_channels = 3,
b6147995 137 .color_type = FF_COLOR_YUV_JPEG,
7e7e5940 138 .pixel_type = FF_PIXEL_PLANAR,
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139 .depth = 8,
140 .x_chroma_shift = 1, .y_chroma_shift = 0,
141 },
142 [PIX_FMT_YUVJ444P] = {
143 .name = "yuvj444p",
7e7e5940 144 .nb_channels = 3,
b6147995 145 .color_type = FF_COLOR_YUV_JPEG,
7e7e5940 146 .pixel_type = FF_PIXEL_PLANAR,
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147 .depth = 8,
148 .x_chroma_shift = 0, .y_chroma_shift = 0,
149 },
150
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151 /* RGB formats */
152 [PIX_FMT_RGB24] = {
ef9f7306 153 .name = "rgb24",
7e7e5940 154 .nb_channels = 3,
b6147995 155 .color_type = FF_COLOR_RGB,
7e7e5940 156 .pixel_type = FF_PIXEL_PACKED,
b6147995 157 .depth = 8,
2cbb7820 158 .x_chroma_shift = 0, .y_chroma_shift = 0,
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159 },
160 [PIX_FMT_BGR24] = {
ef9f7306 161 .name = "bgr24",
7e7e5940 162 .nb_channels = 3,
b6147995 163 .color_type = FF_COLOR_RGB,
7e7e5940 164 .pixel_type = FF_PIXEL_PACKED,
b6147995 165 .depth = 8,
2cbb7820 166 .x_chroma_shift = 0, .y_chroma_shift = 0,
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167 },
168 [PIX_FMT_RGBA32] = {
ef9f7306 169 .name = "rgba32",
7e7e5940 170 .nb_channels = 4, .is_alpha = 1,
b6147995 171 .color_type = FF_COLOR_RGB,
7e7e5940 172 .pixel_type = FF_PIXEL_PACKED,
b6147995 173 .depth = 8,
2cbb7820 174 .x_chroma_shift = 0, .y_chroma_shift = 0,
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175 },
176 [PIX_FMT_RGB565] = {
ef9f7306 177 .name = "rgb565",
7e7e5940 178 .nb_channels = 3,
b6147995 179 .color_type = FF_COLOR_RGB,
7e7e5940 180 .pixel_type = FF_PIXEL_PACKED,
b6147995 181 .depth = 5,
2cbb7820 182 .x_chroma_shift = 0, .y_chroma_shift = 0,
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183 },
184 [PIX_FMT_RGB555] = {
ef9f7306 185 .name = "rgb555",
7e7e5940 186 .nb_channels = 4, .is_alpha = 1,
b6147995 187 .color_type = FF_COLOR_RGB,
7e7e5940 188 .pixel_type = FF_PIXEL_PACKED,
b6147995 189 .depth = 5,
2cbb7820 190 .x_chroma_shift = 0, .y_chroma_shift = 0,
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191 },
192
193 /* gray / mono formats */
194 [PIX_FMT_GRAY8] = {
ef9f7306 195 .name = "gray",
7e7e5940 196 .nb_channels = 1,
b6147995 197 .color_type = FF_COLOR_GRAY,
7e7e5940 198 .pixel_type = FF_PIXEL_PLANAR,
b6147995 199 .depth = 8,
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200 },
201 [PIX_FMT_MONOWHITE] = {
ef9f7306 202 .name = "monow",
7e7e5940 203 .nb_channels = 1,
b6147995 204 .color_type = FF_COLOR_GRAY,
7e7e5940 205 .pixel_type = FF_PIXEL_PLANAR,
b6147995 206 .depth = 1,
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207 },
208 [PIX_FMT_MONOBLACK] = {
ef9f7306 209 .name = "monob",
7e7e5940 210 .nb_channels = 1,
b6147995 211 .color_type = FF_COLOR_GRAY,
7e7e5940 212 .pixel_type = FF_PIXEL_PLANAR,
b6147995 213 .depth = 1,
524c6b63 214 },
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215
216 /* paletted formats */
217 [PIX_FMT_PAL8] = {
218 .name = "pal8",
7e7e5940 219 .nb_channels = 4, .is_alpha = 1,
b6147995 220 .color_type = FF_COLOR_RGB,
7e7e5940 221 .pixel_type = FF_PIXEL_PALETTE,
b6147995 222 .depth = 8,
7e6d70d0 223 },
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224 [PIX_FMT_XVMC_MPEG2_MC] = {
225 .name = "xvmcmc",
226 },
227 [PIX_FMT_XVMC_MPEG2_IDCT] = {
228 .name = "xvmcidct",
229 },
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230 [PIX_FMT_UYVY411] = {
231 .name = "uyvy411",
232 .nb_channels = 1,
233 .color_type = FF_COLOR_YUV,
234 .pixel_type = FF_PIXEL_PACKED,
235 .depth = 8,
236 .x_chroma_shift = 2, .y_chroma_shift = 0,
237 },
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238};
239
240void avcodec_get_chroma_sub_sample(int pix_fmt, int *h_shift, int *v_shift)
241{
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242 *h_shift = pix_fmt_info[pix_fmt].x_chroma_shift;
243 *v_shift = pix_fmt_info[pix_fmt].y_chroma_shift;
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244}
245
246const char *avcodec_get_pix_fmt_name(int pix_fmt)
247{
248 if (pix_fmt < 0 || pix_fmt >= PIX_FMT_NB)
249 return "???";
250 else
251 return pix_fmt_info[pix_fmt].name;
252}
253
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254enum PixelFormat avcodec_get_pix_fmt(const char* name)
255{
256 int i;
257
258 for (i=0; i < PIX_FMT_NB; i++)
259 if (!strcmp(pix_fmt_info[i].name, name))
260 break;
261 return i;
262}
263
2a877875 264/* Picture field are filled with 'ptr' addresses. Also return size */
0c1a9eda 265int avpicture_fill(AVPicture *picture, uint8_t *ptr,
da64ecc3 266 int pix_fmt, int width, int height)
2a877875 267{
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268 int size, w2, h2, size2;
269 PixFmtInfo *pinfo;
270
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271 if(avcodec_check_dimensions(NULL, width, height))
272 goto fail;
273
4c7e8619 274 pinfo = &pix_fmt_info[pix_fmt];
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275 size = width * height;
276 switch(pix_fmt) {
277 case PIX_FMT_YUV420P:
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278 case PIX_FMT_YUV422P:
279 case PIX_FMT_YUV444P:
280 case PIX_FMT_YUV410P:
281 case PIX_FMT_YUV411P:
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282 case PIX_FMT_YUVJ420P:
283 case PIX_FMT_YUVJ422P:
284 case PIX_FMT_YUVJ444P:
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285 w2 = (width + (1 << pinfo->x_chroma_shift) - 1) >> pinfo->x_chroma_shift;
286 h2 = (height + (1 << pinfo->y_chroma_shift) - 1) >> pinfo->y_chroma_shift;
287 size2 = w2 * h2;
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288 picture->data[0] = ptr;
289 picture->data[1] = picture->data[0] + size;
4c7e8619 290 picture->data[2] = picture->data[1] + size2;
2a877875 291 picture->linesize[0] = width;
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292 picture->linesize[1] = w2;
293 picture->linesize[2] = w2;
294 return size + 2 * size2;
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295 case PIX_FMT_RGB24:
296 case PIX_FMT_BGR24:
297 picture->data[0] = ptr;
298 picture->data[1] = NULL;
299 picture->data[2] = NULL;
300 picture->linesize[0] = width * 3;
301 return size * 3;
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302 case PIX_FMT_RGBA32:
303 picture->data[0] = ptr;
304 picture->data[1] = NULL;
305 picture->data[2] = NULL;
306 picture->linesize[0] = width * 4;
307 return size * 4;
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308 case PIX_FMT_RGB555:
309 case PIX_FMT_RGB565:
310 case PIX_FMT_YUV422:
311 picture->data[0] = ptr;
312 picture->data[1] = NULL;
313 picture->data[2] = NULL;
314 picture->linesize[0] = width * 2;
315 return size * 2;
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316 case PIX_FMT_UYVY422:
317 picture->data[0] = ptr;
318 picture->data[1] = NULL;
319 picture->data[2] = NULL;
320 picture->linesize[0] = width * 2;
321 return size * 2;
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322 case PIX_FMT_UYVY411:
323 picture->data[0] = ptr;
324 picture->data[1] = NULL;
325 picture->data[2] = NULL;
326 picture->linesize[0] = width + width/2;
327 return size + size/2;
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328 case PIX_FMT_GRAY8:
329 picture->data[0] = ptr;
330 picture->data[1] = NULL;
331 picture->data[2] = NULL;
332 picture->linesize[0] = width;
333 return size;
334 case PIX_FMT_MONOWHITE:
335 case PIX_FMT_MONOBLACK:
336 picture->data[0] = ptr;
337 picture->data[1] = NULL;
338 picture->data[2] = NULL;
339 picture->linesize[0] = (width + 7) >> 3;
340 return picture->linesize[0] * height;
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341 case PIX_FMT_PAL8:
342 size2 = (size + 3) & ~3;
343 picture->data[0] = ptr;
344 picture->data[1] = ptr + size2; /* palette is stored here as 256 32 bit words */
345 picture->data[2] = NULL;
346 picture->linesize[0] = width;
347 picture->linesize[1] = 4;
348 return size2 + 256 * 4;
2a877875 349 default:
0ecca7a4 350fail:
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351 picture->data[0] = NULL;
352 picture->data[1] = NULL;
353 picture->data[2] = NULL;
7e6d70d0 354 picture->data[3] = NULL;
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355 return -1;
356 }
357}
358
da64ecc3 359int avpicture_layout(const AVPicture* src, int pix_fmt, int width, int height,
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360 unsigned char *dest, int dest_size)
361{
362 PixFmtInfo* pf = &pix_fmt_info[pix_fmt];
363 int i, j, w, h, data_planes;
da64ecc3 364 const unsigned char* s;
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365 int size = avpicture_get_size(pix_fmt, width, height);
366
0ecca7a4 367 if (size > dest_size || size < 0)
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368 return -1;
369
affd55a1 370 if (pf->pixel_type == FF_PIXEL_PACKED || pf->pixel_type == FF_PIXEL_PALETTE) {
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371 if (pix_fmt == PIX_FMT_YUV422 ||
372 pix_fmt == PIX_FMT_UYVY422 ||
373 pix_fmt == PIX_FMT_RGB565 ||
374 pix_fmt == PIX_FMT_RGB555)
375 w = width * 2;
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376 else if (pix_fmt == PIX_FMT_UYVY411)
377 w = width + width/2;
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378 else if (pix_fmt == PIX_FMT_PAL8)
379 w = width;
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380 else
381 w = width * (pf->depth * pf->nb_channels / 8);
affd55a1 382
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383 data_planes = 1;
384 h = height;
385 } else {
386 data_planes = pf->nb_channels;
ed2cea42 387 w = (width*pf->depth + 7)/8;
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388 h = height;
389 }
390
391 for (i=0; i<data_planes; i++) {
392 if (i == 1) {
393 w = width >> pf->x_chroma_shift;
394 h = height >> pf->y_chroma_shift;
395 }
396 s = src->data[i];
397 for(j=0; j<h; j++) {
398 memcpy(dest, s, w);
399 dest += w;
400 s += src->linesize[i];
401 }
402 }
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403
404 if (pf->pixel_type == FF_PIXEL_PALETTE)
405 memcpy((unsigned char *)(((size_t)dest + 3) & ~3), src->data[1], 256 * 4);
406
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407 return size;
408}
409
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410int avpicture_get_size(int pix_fmt, int width, int height)
411{
412 AVPicture dummy_pict;
413 return avpicture_fill(&dummy_pict, NULL, pix_fmt, width, height);
414}
415
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416/**
417 * compute the loss when converting from a pixel format to another
418 */
419int avcodec_get_pix_fmt_loss(int dst_pix_fmt, int src_pix_fmt,
420 int has_alpha)
421{
422 const PixFmtInfo *pf, *ps;
423 int loss;
424
425 ps = &pix_fmt_info[src_pix_fmt];
426 pf = &pix_fmt_info[dst_pix_fmt];
427
428 /* compute loss */
429 loss = 0;
430 pf = &pix_fmt_info[dst_pix_fmt];
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431 if (pf->depth < ps->depth ||
432 (dst_pix_fmt == PIX_FMT_RGB555 && src_pix_fmt == PIX_FMT_RGB565))
b6147995 433 loss |= FF_LOSS_DEPTH;
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434 if (pf->x_chroma_shift > ps->x_chroma_shift ||
435 pf->y_chroma_shift > ps->y_chroma_shift)
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436 loss |= FF_LOSS_RESOLUTION;
437 switch(pf->color_type) {
438 case FF_COLOR_RGB:
439 if (ps->color_type != FF_COLOR_RGB &&
440 ps->color_type != FF_COLOR_GRAY)
441 loss |= FF_LOSS_COLORSPACE;
442 break;
443 case FF_COLOR_GRAY:
444 if (ps->color_type != FF_COLOR_GRAY)
445 loss |= FF_LOSS_COLORSPACE;
446 break;
447 case FF_COLOR_YUV:
448 if (ps->color_type != FF_COLOR_YUV)
449 loss |= FF_LOSS_COLORSPACE;
450 break;
451 case FF_COLOR_YUV_JPEG:
452 if (ps->color_type != FF_COLOR_YUV_JPEG &&
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453 ps->color_type != FF_COLOR_YUV &&
454 ps->color_type != FF_COLOR_GRAY)
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455 loss |= FF_LOSS_COLORSPACE;
456 break;
457 default:
458 /* fail safe test */
459 if (ps->color_type != pf->color_type)
460 loss |= FF_LOSS_COLORSPACE;
461 break;
462 }
463 if (pf->color_type == FF_COLOR_GRAY &&
464 ps->color_type != FF_COLOR_GRAY)
465 loss |= FF_LOSS_CHROMA;
466 if (!pf->is_alpha && (ps->is_alpha && has_alpha))
467 loss |= FF_LOSS_ALPHA;
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468 if (pf->pixel_type == FF_PIXEL_PALETTE &&
469 (ps->pixel_type != FF_PIXEL_PALETTE && ps->color_type != FF_COLOR_GRAY))
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470 loss |= FF_LOSS_COLORQUANT;
471 return loss;
472}
473
474static int avg_bits_per_pixel(int pix_fmt)
475{
476 int bits;
477 const PixFmtInfo *pf;
478
479 pf = &pix_fmt_info[pix_fmt];
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480 switch(pf->pixel_type) {
481 case FF_PIXEL_PACKED:
b6147995 482 switch(pix_fmt) {
7e7e5940 483 case PIX_FMT_YUV422:
ebb177dd 484 case PIX_FMT_UYVY422:
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485 case PIX_FMT_RGB565:
486 case PIX_FMT_RGB555:
487 bits = 16;
b6147995 488 break;
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489 case PIX_FMT_UYVY411:
490 bits = 12;
491 break;
b6147995 492 default:
7e7e5940 493 bits = pf->depth * pf->nb_channels;
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494 break;
495 }
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496 break;
497 case FF_PIXEL_PLANAR:
498 if (pf->x_chroma_shift == 0 && pf->y_chroma_shift == 0) {
499 bits = pf->depth * pf->nb_channels;
500 } else {
501 bits = pf->depth + ((2 * pf->depth) >>
502 (pf->x_chroma_shift + pf->y_chroma_shift));
503 }
504 break;
505 case FF_PIXEL_PALETTE:
506 bits = 8;
507 break;
508 default:
509 bits = -1;
510 break;
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511 }
512 return bits;
513}
514
515static int avcodec_find_best_pix_fmt1(int pix_fmt_mask,
516 int src_pix_fmt,
517 int has_alpha,
518 int loss_mask)
519{
520 int dist, i, loss, min_dist, dst_pix_fmt;
521
522 /* find exact color match with smallest size */
523 dst_pix_fmt = -1;
524 min_dist = 0x7fffffff;
525 for(i = 0;i < PIX_FMT_NB; i++) {
526 if (pix_fmt_mask & (1 << i)) {
527 loss = avcodec_get_pix_fmt_loss(i, src_pix_fmt, has_alpha) & loss_mask;
528 if (loss == 0) {
529 dist = avg_bits_per_pixel(i);
530 if (dist < min_dist) {
531 min_dist = dist;
532 dst_pix_fmt = i;
533 }
534 }
535 }
536 }
537 return dst_pix_fmt;
538}
539
540/**
541 * find best pixel format to convert to. Return -1 if none found
542 */
543int avcodec_find_best_pix_fmt(int pix_fmt_mask, int src_pix_fmt,
544 int has_alpha, int *loss_ptr)
545{
546 int dst_pix_fmt, loss_mask, i;
547 static const int loss_mask_order[] = {
548 ~0, /* no loss first */
549 ~FF_LOSS_ALPHA,
550 ~FF_LOSS_RESOLUTION,
551 ~(FF_LOSS_COLORSPACE | FF_LOSS_RESOLUTION),
552 ~FF_LOSS_COLORQUANT,
553 ~FF_LOSS_DEPTH,
554 0,
555 };
556
557 /* try with successive loss */
558 i = 0;
559 for(;;) {
560 loss_mask = loss_mask_order[i++];
561 dst_pix_fmt = avcodec_find_best_pix_fmt1(pix_fmt_mask, src_pix_fmt,
562 has_alpha, loss_mask);
563 if (dst_pix_fmt >= 0)
564 goto found;
565 if (loss_mask == 0)
566 break;
567 }
568 return -1;
569 found:
570 if (loss_ptr)
571 *loss_ptr = avcodec_get_pix_fmt_loss(dst_pix_fmt, src_pix_fmt, has_alpha);
572 return dst_pix_fmt;
573}
574
7e7e5940 575static void img_copy_plane(uint8_t *dst, int dst_wrap,
e352ff08
FB
576 const uint8_t *src, int src_wrap,
577 int width, int height)
7e7e5940 578{
5b2ad9f5
MN
579 if((!dst) || (!src))
580 return;
7e7e5940
FB
581 for(;height > 0; height--) {
582 memcpy(dst, src, width);
583 dst += dst_wrap;
584 src += src_wrap;
585 }
586}
587
0469baf1
FB
588/**
589 * Copy image 'src' to 'dst'.
590 */
da64ecc3 591void img_copy(AVPicture *dst, const AVPicture *src,
7e7e5940
FB
592 int pix_fmt, int width, int height)
593{
594 int bwidth, bits, i;
595 PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
596
597 pf = &pix_fmt_info[pix_fmt];
598 switch(pf->pixel_type) {
599 case FF_PIXEL_PACKED:
600 switch(pix_fmt) {
601 case PIX_FMT_YUV422:
ebb177dd 602 case PIX_FMT_UYVY422:
7e7e5940
FB
603 case PIX_FMT_RGB565:
604 case PIX_FMT_RGB555:
605 bits = 16;
606 break;
f02be79d
RS
607 case PIX_FMT_UYVY411:
608 bits = 12;
609 break;
7e7e5940
FB
610 default:
611 bits = pf->depth * pf->nb_channels;
612 break;
613 }
614 bwidth = (width * bits + 7) >> 3;
615 img_copy_plane(dst->data[0], dst->linesize[0],
616 src->data[0], src->linesize[0],
617 bwidth, height);
618 break;
619 case FF_PIXEL_PLANAR:
620 for(i = 0; i < pf->nb_channels; i++) {
621 int w, h;
622 w = width;
623 h = height;
624 if (i == 1 || i == 2) {
625 w >>= pf->x_chroma_shift;
626 h >>= pf->y_chroma_shift;
627 }
628 bwidth = (w * pf->depth + 7) >> 3;
629 img_copy_plane(dst->data[i], dst->linesize[i],
630 src->data[i], src->linesize[i],
631 bwidth, h);
632 }
633 break;
634 case FF_PIXEL_PALETTE:
635 img_copy_plane(dst->data[0], dst->linesize[0],
636 src->data[0], src->linesize[0],
637 width, height);
638 /* copy the palette */
639 img_copy_plane(dst->data[1], dst->linesize[1],
640 src->data[1], src->linesize[1],
641 4, 256);
642 break;
643 }
644}
2a877875 645
de6d9b64
FB
646/* XXX: totally non optimized */
647
da64ecc3 648static void yuv422_to_yuv420p(AVPicture *dst, const AVPicture *src,
524c6b63 649 int width, int height)
de6d9b64 650{
c50c0bc8
FB
651 const uint8_t *p, *p1;
652 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
d4f5d74a 653 int w;
524c6b63 654
c50c0bc8
FB
655 p1 = src->data[0];
656 lum1 = dst->data[0];
0a05e494
FB
657 cb1 = dst->data[1];
658 cr1 = dst->data[2];
c50c0bc8 659
d4f5d74a 660 for(;height >= 1; height -= 2) {
c50c0bc8
FB
661 p = p1;
662 lum = lum1;
663 cb = cb1;
664 cr = cr1;
d4f5d74a 665 for(w = width; w >= 2; w -= 2) {
e78df699
MN
666 lum[0] = p[0];
667 cb[0] = p[1];
668 lum[1] = p[2];
669 cr[0] = p[3];
de6d9b64
FB
670 p += 4;
671 lum += 2;
672 cb++;
673 cr++;
674 }
d4f5d74a 675 if (w) {
e78df699 676 lum[0] = p[0];
d4f5d74a
GM
677 cb[0] = p[1];
678 cr[0] = p[3];
679 cb++;
680 cr++;
de6d9b64 681 }
c50c0bc8
FB
682 p1 += src->linesize[0];
683 lum1 += dst->linesize[0];
d4f5d74a
GM
684 if (height>1) {
685 p = p1;
686 lum = lum1;
687 for(w = width; w >= 2; w -= 2) {
688 lum[0] = p[0];
689 lum[1] = p[2];
690 p += 4;
691 lum += 2;
692 }
693 if (w) {
694 lum[0] = p[0];
695 }
696 p1 += src->linesize[0];
697 lum1 += dst->linesize[0];
698 }
c50c0bc8
FB
699 cb1 += dst->linesize[1];
700 cr1 += dst->linesize[2];
701 }
702}
703
ebb177dd
TK
704static void uyvy422_to_yuv420p(AVPicture *dst, const AVPicture *src,
705 int width, int height)
706{
707 const uint8_t *p, *p1;
708 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
709 int w;
710
711 p1 = src->data[0];
712
713 lum1 = dst->data[0];
714 cb1 = dst->data[1];
715 cr1 = dst->data[2];
716
717 for(;height >= 1; height -= 2) {
718 p = p1;
719 lum = lum1;
720 cb = cb1;
721 cr = cr1;
722 for(w = width; w >= 2; w -= 2) {
723 lum[0] = p[1];
724 cb[0] = p[0];
725 lum[1] = p[3];
726 cr[0] = p[2];
727 p += 4;
728 lum += 2;
729 cb++;
730 cr++;
731 }
732 if (w) {
733 lum[0] = p[1];
734 cb[0] = p[0];
735 cr[0] = p[2];
736 cb++;
737 cr++;
738 }
739 p1 += src->linesize[0];
740 lum1 += dst->linesize[0];
741 if (height>1) {
742 p = p1;
743 lum = lum1;
744 for(w = width; w >= 2; w -= 2) {
745 lum[0] = p[1];
746 lum[1] = p[3];
747 p += 4;
748 lum += 2;
749 }
750 if (w) {
751 lum[0] = p[1];
752 }
753 p1 += src->linesize[0];
754 lum1 += dst->linesize[0];
755 }
756 cb1 += dst->linesize[1];
757 cr1 += dst->linesize[2];
758 }
759}
760
761
762static void uyvy422_to_yuv422p(AVPicture *dst, const AVPicture *src,
763 int width, int height)
764{
765 const uint8_t *p, *p1;
766 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
767 int w;
768
769 p1 = src->data[0];
770 lum1 = dst->data[0];
771 cb1 = dst->data[1];
772 cr1 = dst->data[2];
773 for(;height > 0; height--) {
774 p = p1;
775 lum = lum1;
776 cb = cb1;
777 cr = cr1;
778 for(w = width; w >= 2; w -= 2) {
779 lum[0] = p[1];
780 cb[0] = p[0];
781 lum[1] = p[3];
782 cr[0] = p[2];
783 p += 4;
784 lum += 2;
785 cb++;
786 cr++;
787 }
788 p1 += src->linesize[0];
789 lum1 += dst->linesize[0];
790 cb1 += dst->linesize[1];
791 cr1 += dst->linesize[2];
792 }
793}
794
795
da64ecc3 796static void yuv422_to_yuv422p(AVPicture *dst, const AVPicture *src,
c50c0bc8
FB
797 int width, int height)
798{
799 const uint8_t *p, *p1;
800 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
801 int w;
802
803 p1 = src->data[0];
804 lum1 = dst->data[0];
0a05e494
FB
805 cb1 = dst->data[1];
806 cr1 = dst->data[2];
807 for(;height > 0; height--) {
c50c0bc8
FB
808 p = p1;
809 lum = lum1;
810 cb = cb1;
811 cr = cr1;
812 for(w = width; w >= 2; w -= 2) {
813 lum[0] = p[0];
814 cb[0] = p[1];
815 lum[1] = p[2];
816 cr[0] = p[3];
817 p += 4;
818 lum += 2;
819 cb++;
820 cr++;
821 }
822 p1 += src->linesize[0];
823 lum1 += dst->linesize[0];
824 cb1 += dst->linesize[1];
825 cr1 += dst->linesize[2];
de6d9b64
FB
826 }
827}
828
da64ecc3 829static void yuv422p_to_yuv422(AVPicture *dst, const AVPicture *src,
c50c0bc8
FB
830 int width, int height)
831{
832 uint8_t *p, *p1;
833 const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
834 int w;
835
836 p1 = dst->data[0];
837 lum1 = src->data[0];
0a05e494
FB
838 cb1 = src->data[1];
839 cr1 = src->data[2];
840 for(;height > 0; height--) {
c50c0bc8
FB
841 p = p1;
842 lum = lum1;
843 cb = cb1;
844 cr = cr1;
845 for(w = width; w >= 2; w -= 2) {
846 p[0] = lum[0];
847 p[1] = cb[0];
848 p[2] = lum[1];
849 p[3] = cr[0];
850 p += 4;
851 lum += 2;
852 cb++;
853 cr++;
854 }
0a05e494
FB
855 p1 += dst->linesize[0];
856 lum1 += src->linesize[0];
857 cb1 += src->linesize[1];
858 cr1 += src->linesize[2];
c50c0bc8
FB
859 }
860}
861
ebb177dd
TK
862static void yuv422p_to_uyvy422(AVPicture *dst, const AVPicture *src,
863 int width, int height)
864{
865 uint8_t *p, *p1;
866 const uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
867 int w;
868
869 p1 = dst->data[0];
870 lum1 = src->data[0];
871 cb1 = src->data[1];
872 cr1 = src->data[2];
873 for(;height > 0; height--) {
874 p = p1;
875 lum = lum1;
876 cb = cb1;
877 cr = cr1;
878 for(w = width; w >= 2; w -= 2) {
879 p[1] = lum[0];
880 p[0] = cb[0];
881 p[3] = lum[1];
882 p[2] = cr[0];
883 p += 4;
884 lum += 2;
885 cb++;
886 cr++;
887 }
888 p1 += dst->linesize[0];
889 lum1 += src->linesize[0];
890 cb1 += src->linesize[1];
891 cr1 += src->linesize[2];
892 }
893}
894
f02be79d
RS
895static void uyvy411_to_yuv411p(AVPicture *dst, const AVPicture *src,
896 int width, int height)
897{
898 const uint8_t *p, *p1;
899 uint8_t *lum, *cr, *cb, *lum1, *cr1, *cb1;
900 int w;
901
902 p1 = src->data[0];
903 lum1 = dst->data[0];
904 cb1 = dst->data[1];
905 cr1 = dst->data[2];
906 for(;height > 0; height--) {
907 p = p1;
908 lum = lum1;
909 cb = cb1;
910 cr = cr1;
911 for(w = width; w >= 4; w -= 4) {
912 cb[0] = p[0];
913 lum[0] = p[1];
914 lum[1] = p[2];
915 cr[0] = p[3];
916 lum[2] = p[4];
917 lum[3] = p[5];
918 p += 6;
919 lum += 4;
920 cb++;
921 cr++;
922 }
923 p1 += src->linesize[0];
924 lum1 += dst->linesize[0];
925 cb1 += dst->linesize[1];
926 cr1 += dst->linesize[2];
927 }
928}
ebb177dd
TK
929
930
d7e2f57f
MN
931static void yuv420p_to_yuv422(AVPicture *dst, const AVPicture *src,
932 int width, int height)
933{
934 int w, h;
935 uint8_t *line1, *line2, *linesrc = dst->data[0];
936 uint8_t *lum1, *lum2, *lumsrc = src->data[0];
937 uint8_t *cb1, *cb2 = src->data[1];
938 uint8_t *cr1, *cr2 = src->data[2];
939
940 for(h = height / 2; h--;) {
941 line1 = linesrc;
942 line2 = linesrc + dst->linesize[0];
943
944 lum1 = lumsrc;
945 lum2 = lumsrc + src->linesize[0];
946
947 cb1 = cb2;
948 cr1 = cr2;
949
950 for(w = width / 2; w--;) {
951 *line1++ = *lum1++; *line2++ = *lum2++;
952 *line1++ = *line2++ = *cb1++;
953 *line1++ = *lum1++; *line2++ = *lum2++;
954 *line1++ = *line2++ = *cr1++;
955 }
956
957 linesrc += dst->linesize[0] * 2;
958 lumsrc += src->linesize[0] * 2;
959 cb2 += src->linesize[1];
960 cr2 += src->linesize[2];
961 }
962}
963
bac65165
LA
964static void yuv420p_to_uyvy422(AVPicture *dst, const AVPicture *src,
965 int width, int height)
966{
967 int w, h;
968 uint8_t *line1, *line2, *linesrc = dst->data[0];
969 uint8_t *lum1, *lum2, *lumsrc = src->data[0];
970 uint8_t *cb1, *cb2 = src->data[1];
971 uint8_t *cr1, *cr2 = src->data[2];
972
973 for(h = height / 2; h--;) {
974 line1 = linesrc;
975 line2 = linesrc + dst->linesize[0];
976
977 lum1 = lumsrc;
978 lum2 = lumsrc + src->linesize[0];
979
980 cb1 = cb2;
981 cr1 = cr2;
982
983 for(w = width / 2; w--;) {
984 *line1++ = *line2++ = *cb1++;
985 *line1++ = *lum1++; *line2++ = *lum2++;
986 *line1++ = *line2++ = *cr1++;
987 *line1++ = *lum1++; *line2++ = *lum2++;
988 }
989
990 linesrc += dst->linesize[0] * 2;
991 lumsrc += src->linesize[0] * 2;
992 cb2 += src->linesize[1];
993 cr2 += src->linesize[2];
994 }
995}
996
c50c0bc8 997#define SCALEBITS 10
de6d9b64 998#define ONE_HALF (1 << (SCALEBITS - 1))
c50c0bc8 999#define FIX(x) ((int) ((x) * (1<<SCALEBITS) + 0.5))
de6d9b64 1000
c50c0bc8
FB
1001#define YUV_TO_RGB1_CCIR(cb1, cr1)\
1002{\
1003 cb = (cb1) - 128;\
1004 cr = (cr1) - 128;\
1005 r_add = FIX(1.40200*255.0/224.0) * cr + ONE_HALF;\
1006 g_add = - FIX(0.34414*255.0/224.0) * cb - FIX(0.71414*255.0/224.0) * cr + \
1007 ONE_HALF;\
1008 b_add = FIX(1.77200*255.0/224.0) * cb + ONE_HALF;\
1009}
b6147995 1010
c50c0bc8
FB
1011#define YUV_TO_RGB2_CCIR(r, g, b, y1)\
1012{\
1013 y = ((y1) - 16) * FIX(255.0/219.0);\
1014 r = cm[(y + r_add) >> SCALEBITS];\
1015 g = cm[(y + g_add) >> SCALEBITS];\
1016 b = cm[(y + b_add) >> SCALEBITS];\
1017}
1018
1019#define YUV_TO_RGB1(cb1, cr1)\
1020{\
1021 cb = (cb1) - 128;\
1022 cr = (cr1) - 128;\
1023 r_add = FIX(1.40200) * cr + ONE_HALF;\
1024 g_add = - FIX(0.34414) * cb - FIX(0.71414) * cr + ONE_HALF;\
1025 b_add = FIX(1.77200) * cb + ONE_HALF;\
1026}
b6147995
FB
1027
1028#define YUV_TO_RGB2(r, g, b, y1)\
1029{\
c50c0bc8
FB
1030 y = (y1) << SCALEBITS;\
1031 r = cm[(y + r_add) >> SCALEBITS];\
1032 g = cm[(y + g_add) >> SCALEBITS];\
1033 b = cm[(y + b_add) >> SCALEBITS];\
b6147995
FB
1034}
1035
c50c0bc8 1036#define Y_CCIR_TO_JPEG(y)\
b6147995
FB
1037 cm[((y) * FIX(255.0/219.0) + (ONE_HALF - 16 * FIX(255.0/219.0))) >> SCALEBITS]
1038
c50c0bc8 1039#define Y_JPEG_TO_CCIR(y)\
b6147995
FB
1040 (((y) * FIX(219.0/255.0) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
1041
c50c0bc8
FB
1042#define C_CCIR_TO_JPEG(y)\
1043 cm[(((y) - 128) * FIX(127.0/112.0) + (ONE_HALF + (128 << SCALEBITS))) >> SCALEBITS]
1044
1045/* NOTE: the clamp is really necessary! */
4cfbf61b
FH
1046static inline int C_JPEG_TO_CCIR(int y) {
1047 y = (((y - 128) * FIX(112.0/127.0) + (ONE_HALF + (128 << SCALEBITS))) >> SCALEBITS);
1048 if (y < 16)
1049 y = 16;
1050 return y;
1051}
1052
c50c0bc8 1053
b6147995
FB
1054#define RGB_TO_Y(r, g, b) \
1055((FIX(0.29900) * (r) + FIX(0.58700) * (g) + \
1056 FIX(0.11400) * (b) + ONE_HALF) >> SCALEBITS)
1057
c50c0bc8 1058#define RGB_TO_U(r1, g1, b1, shift)\
b6147995 1059(((- FIX(0.16874) * r1 - FIX(0.33126) * g1 + \
c50c0bc8 1060 FIX(0.50000) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
b6147995 1061
c50c0bc8 1062#define RGB_TO_V(r1, g1, b1, shift)\
b6147995 1063(((FIX(0.50000) * r1 - FIX(0.41869) * g1 - \
c50c0bc8 1064 FIX(0.08131) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
b6147995
FB
1065
1066#define RGB_TO_Y_CCIR(r, g, b) \
1067((FIX(0.29900*219.0/255.0) * (r) + FIX(0.58700*219.0/255.0) * (g) + \
1068 FIX(0.11400*219.0/255.0) * (b) + (ONE_HALF + (16 << SCALEBITS))) >> SCALEBITS)
1069
c50c0bc8 1070#define RGB_TO_U_CCIR(r1, g1, b1, shift)\
b6147995 1071(((- FIX(0.16874*224.0/255.0) * r1 - FIX(0.33126*224.0/255.0) * g1 + \
c50c0bc8 1072 FIX(0.50000*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
b6147995 1073
c50c0bc8 1074#define RGB_TO_V_CCIR(r1, g1, b1, shift)\
b6147995 1075(((FIX(0.50000*224.0/255.0) * r1 - FIX(0.41869*224.0/255.0) * g1 - \
c50c0bc8 1076 FIX(0.08131*224.0/255.0) * b1 + (ONE_HALF << shift) - 1) >> (SCALEBITS + shift)) + 128)
b6147995 1077
c50c0bc8
FB
1078static uint8_t y_ccir_to_jpeg[256];
1079static uint8_t y_jpeg_to_ccir[256];
1080static uint8_t c_ccir_to_jpeg[256];
1081static uint8_t c_jpeg_to_ccir[256];
1082
1083/* init various conversion tables */
1084static void img_convert_init(void)
b6147995 1085{
c50c0bc8 1086 int i;
b6147995
FB
1087 uint8_t *cm = cropTbl + MAX_NEG_CROP;
1088
c50c0bc8
FB
1089 for(i = 0;i < 256; i++) {
1090 y_ccir_to_jpeg[i] = Y_CCIR_TO_JPEG(i);
1091 y_jpeg_to_ccir[i] = Y_JPEG_TO_CCIR(i);
1092 c_ccir_to_jpeg[i] = C_CCIR_TO_JPEG(i);
1093 c_jpeg_to_ccir[i] = C_JPEG_TO_CCIR(i);
b6147995
FB
1094 }
1095}
1096
c50c0bc8
FB
1097/* apply to each pixel the given table */
1098static void img_apply_table(uint8_t *dst, int dst_wrap,
1099 const uint8_t *src, int src_wrap,
1100 int width, int height, const uint8_t *table1)
b6147995
FB
1101{
1102 int n;
1103 const uint8_t *s;
1104 uint8_t *d;
c50c0bc8 1105 const uint8_t *table;
b6147995 1106
c50c0bc8 1107 table = table1;
b6147995
FB
1108 for(;height > 0; height--) {
1109 s = src;
1110 d = dst;
1111 n = width;
1112 while (n >= 4) {
c50c0bc8
FB
1113 d[0] = table[s[0]];
1114 d[1] = table[s[1]];
1115 d[2] = table[s[2]];
1116 d[3] = table[s[3]];
b6147995
FB
1117 d += 4;
1118 s += 4;
1119 n -= 4;
1120 }
1121 while (n > 0) {
c50c0bc8 1122 d[0] = table[s[0]];
b6147995
FB
1123 d++;
1124 s++;
1125 n--;
1126 }
1127 dst += dst_wrap;
1128 src += src_wrap;
1129 }
1130}
1131
85c242d8 1132/* XXX: use generic filter ? */
e352ff08
FB
1133/* XXX: in most cases, the sampling position is incorrect */
1134
1135/* 4x1 -> 1x1 */
1136static void shrink41(uint8_t *dst, int dst_wrap,
1137 const uint8_t *src, int src_wrap,
1138 int width, int height)
1139{
1140 int w;
1141 const uint8_t *s;
1142 uint8_t *d;
1143
1144 for(;height > 0; height--) {
1145 s = src;
1146 d = dst;
1147 for(w = width;w > 0; w--) {
1148 d[0] = (s[0] + s[1] + s[2] + s[3] + 2) >> 2;
1149 s += 4;
1150 d++;
1151 }
1152 src += src_wrap;
1153 dst += dst_wrap;
1154 }
1155}
1156
1157/* 2x1 -> 1x1 */
1158static void shrink21(uint8_t *dst, int dst_wrap,
1159 const uint8_t *src, int src_wrap,
1160 int width, int height)
1161{
1162 int w;
1163 const uint8_t *s;
1164 uint8_t *d;
1165
1166 for(;height > 0; height--) {
1167 s = src;
1168 d = dst;
1169 for(w = width;w > 0; w--) {
1170 d[0] = (s[0] + s[1]) >> 1;
1171 s += 2;
1172 d++;
1173 }
1174 src += src_wrap;
1175 dst += dst_wrap;
1176 }
1177}
1178
85c242d8 1179/* 1x2 -> 1x1 */
e352ff08
FB
1180static void shrink12(uint8_t *dst, int dst_wrap,
1181 const uint8_t *src, int src_wrap,
1182 int width, int height)
85c242d8
FB
1183{
1184 int w;
e352ff08
FB
1185 uint8_t *d;
1186 const uint8_t *s1, *s2;
85c242d8
FB
1187
1188 for(;height > 0; height--) {
1189 s1 = src;
1190 s2 = s1 + src_wrap;
1191 d = dst;
1192 for(w = width;w >= 4; w-=4) {
1193 d[0] = (s1[0] + s2[0]) >> 1;
1194 d[1] = (s1[1] + s2[1]) >> 1;
1195 d[2] = (s1[2] + s2[2]) >> 1;
1196 d[3] = (s1[3] + s2[3]) >> 1;
1197 s1 += 4;
1198 s2 += 4;
1199 d += 4;
1200 }
1201 for(;w > 0; w--) {
1202 d[0] = (s1[0] + s2[0]) >> 1;
1203 s1++;
1204 s2++;
1205 d++;
1206 }
1207 src += 2 * src_wrap;
1208 dst += dst_wrap;
1209 }
1210}
1211
1212/* 2x2 -> 1x1 */
0c1a9eda 1213static void shrink22(uint8_t *dst, int dst_wrap,
e352ff08 1214 const uint8_t *src, int src_wrap,
85c242d8
FB
1215 int width, int height)
1216{
1217 int w;
e352ff08
FB
1218 const uint8_t *s1, *s2;
1219 uint8_t *d;
85c242d8
FB
1220
1221 for(;height > 0; height--) {
1222 s1 = src;
1223 s2 = s1 + src_wrap;
1224 d = dst;
1225 for(w = width;w >= 4; w-=4) {
0a9ad8d1
FB
1226 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
1227 d[1] = (s1[2] + s1[3] + s2[2] + s2[3] + 2) >> 2;
1228 d[2] = (s1[4] + s1[5] + s2[4] + s2[5] + 2) >> 2;
1229 d[3] = (s1[6] + s1[7] + s2[6] + s2[7] + 2) >> 2;
85c242d8
FB
1230 s1 += 8;
1231 s2 += 8;
1232 d += 4;
1233 }
1234 for(;w > 0; w--) {
0a9ad8d1 1235 d[0] = (s1[0] + s1[1] + s2[0] + s2[1] + 2) >> 2;
85c242d8
FB
1236 s1 += 2;
1237 s2 += 2;
1238 d++;
1239 }
1240 src += 2 * src_wrap;
1241 dst += dst_wrap;
1242 }
1243}
1244
e352ff08
FB
1245/* 4x4 -> 1x1 */
1246static void shrink44(uint8_t *dst, int dst_wrap,
1247 const uint8_t *src, int src_wrap,
6742d95d
FR
1248 int width, int height)
1249{
1250 int w;
e352ff08
FB
1251 const uint8_t *s1, *s2, *s3, *s4;
1252 uint8_t *d;
6742d95d
FR
1253
1254 for(;height > 0; height--) {
1255 s1 = src;
e352ff08
FB
1256 s2 = s1 + src_wrap;
1257 s3 = s2 + src_wrap;
1258 s4 = s3 + src_wrap;
6742d95d 1259 d = dst;
e352ff08
FB
1260 for(w = width;w > 0; w--) {
1261 d[0] = (s1[0] + s1[1] + s1[2] + s1[3] +
1262 s2[0] + s2[1] + s2[2] + s2[3] +
1263 s3[0] + s3[1] + s3[2] + s3[3] +
1264 s4[0] + s4[1] + s4[2] + s4[3] + 8) >> 4;
1265 s1 += 4;
1266 s2 += 4;
1267 s3 += 4;
1268 s4 += 4;
6742d95d
FR
1269 d++;
1270 }
e352ff08
FB
1271 src += 4 * src_wrap;
1272 dst += dst_wrap;
1273 }
1274}
1275
1276static void grow21_line(uint8_t *dst, const uint8_t *src,
1277 int width)
1278{
1279 int w;
1280 const uint8_t *s1;
1281 uint8_t *d;
1282
1283 s1 = src;
1284 d = dst;
1285 for(w = width;w >= 4; w-=4) {
1286 d[1] = d[0] = s1[0];
1287 d[3] = d[2] = s1[1];
1288 s1 += 2;
1289 d += 4;
1290 }
1291 for(;w >= 2; w -= 2) {
1292 d[1] = d[0] = s1[0];
1293 s1 ++;
1294 d += 2;
1295 }
1296 /* only needed if width is not a multiple of two */
1297 /* XXX: veryfy that */
1298 if (w) {
1299 d[0] = s1[0];
1300 }
1301}
1302
1303static void grow41_line(uint8_t *dst, const uint8_t *src,
1304 int width)
1305{
1306 int w, v;
1307 const uint8_t *s1;
1308 uint8_t *d;
1309
1310 s1 = src;
1311 d = dst;
1312 for(w = width;w >= 4; w-=4) {
1313 v = s1[0];
1314 d[0] = v;
1315 d[1] = v;
1316 d[2] = v;
1317 d[3] = v;
1318 s1 ++;
1319 d += 4;
1320 }
1321}
1322
1323/* 1x1 -> 2x1 */
1324static void grow21(uint8_t *dst, int dst_wrap,
1325 const uint8_t *src, int src_wrap,
1326 int width, int height)
1327{
1328 for(;height > 0; height--) {
1329 grow21_line(dst, src, width);
1330 src += src_wrap;
1331 dst += dst_wrap;
1332 }
1333}
1334
1335/* 1x1 -> 2x2 */
1336static void grow22(uint8_t *dst, int dst_wrap,
1337 const uint8_t *src, int src_wrap,
1338 int width, int height)
1339{
1340 for(;height > 0; height--) {
1341 grow21_line(dst, src, width);
6742d95d
FR
1342 if (height%2)
1343 src += src_wrap;
1344 dst += dst_wrap;
1345 }
1346}
1347
e352ff08
FB
1348/* 1x1 -> 4x1 */
1349static void grow41(uint8_t *dst, int dst_wrap,
1350 const uint8_t *src, int src_wrap,
1351 int width, int height)
1352{
1353 for(;height > 0; height--) {
1354 grow41_line(dst, src, width);
1355 src += src_wrap;
1356 dst += dst_wrap;
1357 }
1358}
1359
1360/* 1x1 -> 4x4 */
1361static void grow44(uint8_t *dst, int dst_wrap,
1362 const uint8_t *src, int src_wrap,
1363 int width, int height)
1364{
1365 for(;height > 0; height--) {
1366 grow41_line(dst, src, width);
1367 if ((height & 3) == 1)
1368 src += src_wrap;
1369 dst += dst_wrap;
1370 }
1371}
1372
524c6b63 1373/* 1x2 -> 2x1 */
0c1a9eda 1374static void conv411(uint8_t *dst, int dst_wrap,
e352ff08 1375 const uint8_t *src, int src_wrap,
789587d5
FB
1376 int width, int height)
1377{
1378 int w, c;
e352ff08
FB
1379 const uint8_t *s1, *s2;
1380 uint8_t *d;
789587d5 1381
50643575
MN
1382 width>>=1;
1383
524c6b63 1384 for(;height > 0; height--) {
789587d5
FB
1385 s1 = src;
1386 s2 = src + src_wrap;
1387 d = dst;
1388 for(w = width;w > 0; w--) {
1389 c = (s1[0] + s2[0]) >> 1;
1390 d[0] = c;
1391 d[1] = c;
1392 s1++;
1393 s2++;
1394 d += 2;
1395 }
1396 src += src_wrap * 2;
1397 dst += dst_wrap;
1398 }
1399}
1400
7e7e5940
FB
1401/* XXX: add jpeg quantize code */
1402
1403#define TRANSP_INDEX (6*6*6)
1404
1405/* this is maybe slow, but allows for extensions */
1406static inline unsigned char gif_clut_index(uint8_t r, uint8_t g, uint8_t b)
85c242d8 1407{
7e7e5940 1408 return ((((r)/47)%6)*6*6+(((g)/47)%6)*6+(((b)/47)%6));
85c242d8
FB
1409}
1410
7e7e5940
FB
1411static void build_rgb_palette(uint8_t *palette, int has_alpha)
1412{
1413 uint32_t *pal;
1414 static const uint8_t pal_value[6] = { 0x00, 0x33, 0x66, 0x99, 0xcc, 0xff };
1415 int i, r, g, b;
1416
1417 pal = (uint32_t *)palette;
1418 i = 0;
1419 for(r = 0; r < 6; r++) {
1420 for(g = 0; g < 6; g++) {
1421 for(b = 0; b < 6; b++) {
1422 pal[i++] = (0xff << 24) | (pal_value[r] << 16) |
1423 (pal_value[g] << 8) | pal_value[b];
1424 }
1425 }
1426 }
1427 if (has_alpha)
1428 pal[i++] = 0;
1429 while (i < 256)
1430 pal[i++] = 0xff000000;
524c6b63
FB
1431}
1432
1433/* copy bit n to bits 0 ... n - 1 */
1434static inline unsigned int bitcopy_n(unsigned int a, int n)
b71472eb 1435{
524c6b63
FB
1436 int mask;
1437 mask = (1 << n) - 1;
1438 return (a & (0xff & ~mask)) | ((-((a >> n) & 1)) & mask);
1439}
1440
1441/* rgb555 handling */
1442
7e7e5940
FB
1443#define RGB_NAME rgb555
1444
524c6b63
FB
1445#define RGB_IN(r, g, b, s)\
1446{\
0c1a9eda 1447 unsigned int v = ((const uint16_t *)(s))[0];\
524c6b63
FB
1448 r = bitcopy_n(v >> (10 - 3), 3);\
1449 g = bitcopy_n(v >> (5 - 3), 3);\
1450 b = bitcopy_n(v << 3, 3);\
1451}
1452
7e7e5940 1453#define RGBA_IN(r, g, b, a, s)\
524c6b63 1454{\
7e7e5940
FB
1455 unsigned int v = ((const uint16_t *)(s))[0];\
1456 r = bitcopy_n(v >> (10 - 3), 3);\
1457 g = bitcopy_n(v >> (5 - 3), 3);\
1458 b = bitcopy_n(v << 3, 3);\
b5ff5e22 1459 a = (-(v >> 15)) & 0xff;\
7e7e5940
FB
1460}
1461
1462#define RGBA_OUT(d, r, g, b, a)\
1463{\
1464 ((uint16_t *)(d))[0] = ((r >> 3) << 10) | ((g >> 3) << 5) | (b >> 3) | \
1465 ((a << 8) & 0x8000);\
524c6b63
FB
1466}
1467
1468#define BPP 2
1469
7e7e5940 1470#include "imgconvert_template.h"
524c6b63
FB
1471
1472/* rgb565 handling */
1473
7e7e5940
FB
1474#define RGB_NAME rgb565
1475
524c6b63
FB
1476#define RGB_IN(r, g, b, s)\
1477{\
0c1a9eda 1478 unsigned int v = ((const uint16_t *)(s))[0];\
524c6b63
FB
1479 r = bitcopy_n(v >> (11 - 3), 3);\
1480 g = bitcopy_n(v >> (5 - 2), 2);\
1481 b = bitcopy_n(v << 3, 3);\
1482}
1483
1484#define RGB_OUT(d, r, g, b)\
1485{\
0c1a9eda 1486 ((uint16_t *)(d))[0] = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);\
524c6b63
FB
1487}
1488
1489#define BPP 2
1490
7e7e5940 1491#include "imgconvert_template.h"
524c6b63
FB
1492
1493/* bgr24 handling */
1494
7e7e5940
FB
1495#define RGB_NAME bgr24
1496
524c6b63
FB
1497#define RGB_IN(r, g, b, s)\
1498{\
1499 b = (s)[0];\
1500 g = (s)[1];\
1501 r = (s)[2];\
1502}
1503
1504#define RGB_OUT(d, r, g, b)\
1505{\
1506 (d)[0] = b;\
1507 (d)[1] = g;\
1508 (d)[2] = r;\
1509}
1510
1511#define BPP 3
1512
7e7e5940 1513#include "imgconvert_template.h"
524c6b63
FB
1514
1515#undef RGB_IN
1516#undef RGB_OUT
1517#undef BPP
1518
1519/* rgb24 handling */
1520
7e7e5940
FB
1521#define RGB_NAME rgb24
1522#define FMT_RGB24
1523
524c6b63
FB
1524#define RGB_IN(r, g, b, s)\
1525{\
1526 r = (s)[0];\
1527 g = (s)[1];\
1528 b = (s)[2];\
1529}
1530
1531#define RGB_OUT(d, r, g, b)\
1532{\
1533 (d)[0] = r;\
1534 (d)[1] = g;\
1535 (d)[2] = b;\
1536}
1537
1538#define BPP 3
1539
7e7e5940 1540#include "imgconvert_template.h"
524c6b63
FB
1541
1542/* rgba32 handling */
1543
7e7e5940
FB
1544#define RGB_NAME rgba32
1545#define FMT_RGBA32
1546
524c6b63
FB
1547#define RGB_IN(r, g, b, s)\
1548{\
0c1a9eda 1549 unsigned int v = ((const uint32_t *)(s))[0];\
524c6b63
FB
1550 r = (v >> 16) & 0xff;\
1551 g = (v >> 8) & 0xff;\
1552 b = v & 0xff;\
1553}
1554
7e7e5940 1555#define RGBA_IN(r, g, b, a, s)\
524c6b63 1556{\
7e7e5940
FB
1557 unsigned int v = ((const uint32_t *)(s))[0];\
1558 a = (v >> 24) & 0xff;\
1559 r = (v >> 16) & 0xff;\
1560 g = (v >> 8) & 0xff;\
1561 b = v & 0xff;\
524c6b63
FB
1562}
1563
7e7e5940
FB
1564#define RGBA_OUT(d, r, g, b, a)\
1565{\
1566 ((uint32_t *)(d))[0] = (a << 24) | (r << 16) | (g << 8) | b;\
b71472eb
PG
1567}
1568
7e7e5940 1569#define BPP 4
524c6b63 1570
7e7e5940 1571#include "imgconvert_template.h"
b71472eb 1572
da64ecc3 1573static void mono_to_gray(AVPicture *dst, const AVPicture *src,
2a877875 1574 int width, int height, int xor_mask)
524c6b63
FB
1575{
1576 const unsigned char *p;
1577 unsigned char *q;
1578 int v, dst_wrap, src_wrap;
1579 int y, w;
1580
1581 p = src->data[0];
1582 src_wrap = src->linesize[0] - ((width + 7) >> 3);
1583
1584 q = dst->data[0];
2a877875 1585 dst_wrap = dst->linesize[0] - width;
524c6b63
FB
1586 for(y=0;y<height;y++) {
1587 w = width;
1588 while (w >= 8) {
2a877875
FB
1589 v = *p++ ^ xor_mask;
1590 q[0] = -(v >> 7);
1591 q[1] = -((v >> 6) & 1);
1592 q[2] = -((v >> 5) & 1);
1593 q[3] = -((v >> 4) & 1);
1594 q[4] = -((v >> 3) & 1);
1595 q[5] = -((v >> 2) & 1);
1596 q[6] = -((v >> 1) & 1);
1597 q[7] = -((v >> 0) & 1);
524c6b63 1598 w -= 8;
2a877875 1599 q += 8;
524c6b63
FB
1600 }
1601 if (w > 0) {
2a877875 1602 v = *p++ ^ xor_mask;
524c6b63 1603 do {
2a877875
FB
1604 q[0] = -((v >> 7) & 1);
1605 q++;
524c6b63
FB
1606 v <<= 1;
1607 } while (--w);
85c242d8 1608 }
524c6b63
FB
1609 p += src_wrap;
1610 q += dst_wrap;
85c242d8
FB
1611 }
1612}
1613
da64ecc3 1614static void monowhite_to_gray(AVPicture *dst, const AVPicture *src,
524c6b63
FB
1615 int width, int height)
1616{
2a877875
FB
1617 mono_to_gray(dst, src, width, height, 0xff);
1618}
524c6b63 1619
da64ecc3 1620static void monoblack_to_gray(AVPicture *dst, const AVPicture *src,
2a877875
FB
1621 int width, int height)
1622{
1623 mono_to_gray(dst, src, width, height, 0x00);
1624}
524c6b63 1625
da64ecc3 1626static void gray_to_mono(AVPicture *dst, const AVPicture *src,
2a877875
FB
1627 int width, int height, int xor_mask)
1628{
1629 int n;
0c1a9eda
ZK
1630 const uint8_t *s;
1631 uint8_t *d;
2a877875
FB
1632 int j, b, v, n1, src_wrap, dst_wrap, y;
1633
1634 s = src->data[0];
1635 src_wrap = src->linesize[0] - width;
1636
1637 d = dst->data[0];
1638 dst_wrap = dst->linesize[0] - ((width + 7) >> 3);
524c6b63
FB
1639
1640 for(y=0;y<height;y++) {
2a877875
FB
1641 n = width;
1642 while (n >= 8) {
1643 v = 0;
1644 for(j=0;j<8;j++) {
1645 b = s[0];
1646 s++;
1647 v = (v << 1) | (b >> 7);
1648 }
1649 d[0] = v ^ xor_mask;
1650 d++;
1651 n -= 8;
524c6b63 1652 }
2a877875
FB
1653 if (n > 0) {
1654 n1 = n;
1655 v = 0;
1656 while (n > 0) {
1657 b = s[0];
1658 s++;
1659 v = (v << 1) | (b >> 7);
1660 n--;
1661 }
1662 d[0] = (v << (8 - (n1 & 7))) ^ xor_mask;
1663 d++;
524c6b63 1664 }
2a877875
FB
1665 s += src_wrap;
1666 d += dst_wrap;
524c6b63
FB
1667 }
1668}
1669
da64ecc3 1670static void gray_to_monowhite(AVPicture *dst, const AVPicture *src,
2a877875
FB
1671 int width, int height)
1672{
1673 gray_to_mono(dst, src, width, height, 0xff);
1674}
1675
da64ecc3 1676static void gray_to_monoblack(AVPicture *dst, const AVPicture *src,
2a877875
FB
1677 int width, int height)
1678{
1679 gray_to_mono(dst, src, width, height, 0x00);
1680}
1681
524c6b63 1682typedef struct ConvertEntry {
da64ecc3
DH
1683 void (*convert)(AVPicture *dst,
1684 const AVPicture *src, int width, int height);
524c6b63
FB
1685} ConvertEntry;
1686
c50c0bc8
FB
1687/* Add each new convertion function in this table. In order to be able
1688 to convert from any format to any format, the following constraints
1689 must be satisfied:
1690
1691 - all FF_COLOR_RGB formats must convert to and from PIX_FMT_RGB24
1692
1693 - all FF_COLOR_GRAY formats must convert to and from PIX_FMT_GRAY8
1694
1695 - all FF_COLOR_RGB formats with alpha must convert to and from PIX_FMT_RGBA32
1696
e352ff08 1697 - PIX_FMT_YUV444P and PIX_FMT_YUVJ444P must convert to and from
c50c0bc8
FB
1698 PIX_FMT_RGB24.
1699
1700 - PIX_FMT_422 must convert to and from PIX_FMT_422P.
e352ff08
FB
1701
1702 The other conversion functions are just optimisations for common cases.
524c6b63
FB
1703*/
1704static ConvertEntry convert_table[PIX_FMT_NB][PIX_FMT_NB] = {
1705 [PIX_FMT_YUV420P] = {
d7e2f57f
MN
1706 [PIX_FMT_YUV422] = {
1707 .convert = yuv420p_to_yuv422,
1708 },
524c6b63 1709 [PIX_FMT_RGB555] = {
ef9f7306 1710 .convert = yuv420p_to_rgb555
524c6b63
FB
1711 },
1712 [PIX_FMT_RGB565] = {
ef9f7306 1713 .convert = yuv420p_to_rgb565
524c6b63
FB
1714 },
1715 [PIX_FMT_BGR24] = {
ef9f7306 1716 .convert = yuv420p_to_bgr24
524c6b63
FB
1717 },
1718 [PIX_FMT_RGB24] = {
ef9f7306 1719 .convert = yuv420p_to_rgb24
524c6b63
FB
1720 },
1721 [PIX_FMT_RGBA32] = {
ef9f7306 1722 .convert = yuv420p_to_rgba32
524c6b63 1723 },
bac65165
LA
1724 [PIX_FMT_UYVY422] = {
1725 .convert = yuv420p_to_uyvy422,
1726 },
524c6b63 1727 },
c50c0bc8
FB
1728 [PIX_FMT_YUV422P] = {
1729 [PIX_FMT_YUV422] = {
1730 .convert = yuv422p_to_yuv422,
1731 },
ebb177dd
TK
1732 [PIX_FMT_UYVY422] = {
1733 .convert = yuv422p_to_uyvy422,
1734 },
c50c0bc8
FB
1735 },
1736 [PIX_FMT_YUV444P] = {
1737 [PIX_FMT_RGB24] = {
1738 .convert = yuv444p_to_rgb24
1739 },
1740 },
1741 [PIX_FMT_YUVJ420P] = {
524c6b63 1742 [PIX_FMT_RGB555] = {
c50c0bc8 1743 .convert = yuvj420p_to_rgb555
524c6b63
FB
1744 },
1745 [PIX_FMT_RGB565] = {
c50c0bc8 1746 .convert = yuvj420p_to_rgb565
524c6b63
FB
1747 },
1748 [PIX_FMT_BGR24] = {
c50c0bc8 1749 .convert = yuvj420p_to_bgr24
524c6b63
FB
1750 },
1751 [PIX_FMT_RGB24] = {
c50c0bc8 1752 .convert = yuvj420p_to_rgb24
524c6b63
FB
1753 },
1754 [PIX_FMT_RGBA32] = {
c50c0bc8
FB
1755 .convert = yuvj420p_to_rgba32
1756 },
1757 },
1758 [PIX_FMT_YUVJ444P] = {
1759 [PIX_FMT_RGB24] = {
1760 .convert = yuvj444p_to_rgb24
524c6b63
FB
1761 },
1762 },
1763 [PIX_FMT_YUV422] = {
1764 [PIX_FMT_YUV420P] = {
ef9f7306 1765 .convert = yuv422_to_yuv420p,
524c6b63 1766 },
c50c0bc8
FB
1767 [PIX_FMT_YUV422P] = {
1768 .convert = yuv422_to_yuv422p,
1769 },
524c6b63 1770 },
ebb177dd
TK
1771 [PIX_FMT_UYVY422] = {
1772 [PIX_FMT_YUV420P] = {
1773 .convert = uyvy422_to_yuv420p,
1774 },
1775 [PIX_FMT_YUV422P] = {
1776 .convert = uyvy422_to_yuv422p,
1777 },
1778 },
524c6b63
FB
1779 [PIX_FMT_RGB24] = {
1780 [PIX_FMT_YUV420P] = {
ef9f7306 1781 .convert = rgb24_to_yuv420p
524c6b63
FB
1782 },
1783 [PIX_FMT_RGB565] = {
ef9f7306 1784 .convert = rgb24_to_rgb565
524c6b63
FB
1785 },
1786 [PIX_FMT_RGB555] = {
ef9f7306 1787 .convert = rgb24_to_rgb555
524c6b63 1788 },
7e7e5940
FB
1789 [PIX_FMT_RGBA32] = {
1790 .convert = rgb24_to_rgba32
1791 },
1792 [PIX_FMT_BGR24] = {
1793 .convert = rgb24_to_bgr24
1794 },
524c6b63 1795 [PIX_FMT_GRAY8] = {
ef9f7306 1796 .convert = rgb24_to_gray
524c6b63 1797 },
7e7e5940 1798 [PIX_FMT_PAL8] = {
7e6d70d0
FB
1799 .convert = rgb24_to_pal8
1800 },
c50c0bc8
FB
1801 [PIX_FMT_YUV444P] = {
1802 .convert = rgb24_to_yuv444p
1803 },
1804 [PIX_FMT_YUVJ420P] = {
1805 .convert = rgb24_to_yuvj420p
1806 },
1807 [PIX_FMT_YUVJ444P] = {
1808 .convert = rgb24_to_yuvj444p
1809 },
524c6b63
FB
1810 },
1811 [PIX_FMT_RGBA32] = {
7e7e5940
FB
1812 [PIX_FMT_RGB24] = {
1813 .convert = rgba32_to_rgb24
1814 },
1815 [PIX_FMT_RGB555] = {
1816 .convert = rgba32_to_rgb555
1817 },
1818 [PIX_FMT_PAL8] = {
1819 .convert = rgba32_to_pal8
1820 },
524c6b63 1821 [PIX_FMT_YUV420P] = {
ef9f7306 1822 .convert = rgba32_to_yuv420p
524c6b63 1823 },
69572401
FB
1824 [PIX_FMT_GRAY8] = {
1825 .convert = rgba32_to_gray
1826 },
524c6b63
FB
1827 },
1828 [PIX_FMT_BGR24] = {
7e7e5940
FB
1829 [PIX_FMT_RGB24] = {
1830 .convert = bgr24_to_rgb24
1831 },
524c6b63 1832 [PIX_FMT_YUV420P] = {
ef9f7306 1833 .convert = bgr24_to_yuv420p
524c6b63 1834 },
69572401
FB
1835 [PIX_FMT_GRAY8] = {
1836 .convert = bgr24_to_gray
1837 },
524c6b63
FB
1838 },
1839 [PIX_FMT_RGB555] = {
7e7e5940
FB
1840 [PIX_FMT_RGB24] = {
1841 .convert = rgb555_to_rgb24
1842 },
1843 [PIX_FMT_RGBA32] = {
1844 .convert = rgb555_to_rgba32
1845 },
524c6b63 1846 [PIX_FMT_YUV420P] = {
ef9f7306 1847 .convert = rgb555_to_yuv420p
524c6b63 1848 },
69572401
FB
1849 [PIX_FMT_GRAY8] = {
1850 .convert = rgb555_to_gray
1851 },
524c6b63
FB
1852 },
1853 [PIX_FMT_RGB565] = {
7e7e5940
FB
1854 [PIX_FMT_RGB24] = {
1855 .convert = rgb565_to_rgb24
1856 },
524c6b63 1857 [PIX_FMT_YUV420P] = {
ef9f7306 1858 .convert = rgb565_to_yuv420p
524c6b63 1859 },
69572401
FB
1860 [PIX_FMT_GRAY8] = {
1861 .convert = rgb565_to_gray
1862 },
524c6b63
FB
1863 },
1864 [PIX_FMT_GRAY8] = {
69572401
FB
1865 [PIX_FMT_RGB555] = {
1866 .convert = gray_to_rgb555
1867 },
1868 [PIX_FMT_RGB565] = {
1869 .convert = gray_to_rgb565
1870 },
524c6b63 1871 [PIX_FMT_RGB24] = {
ef9f7306 1872 .convert = gray_to_rgb24
524c6b63 1873 },
69572401
FB
1874 [PIX_FMT_BGR24] = {
1875 .convert = gray_to_bgr24
1876 },
1877 [PIX_FMT_RGBA32] = {
1878 .convert = gray_to_rgba32
1879 },
2a877875 1880 [PIX_FMT_MONOWHITE] = {
ef9f7306 1881 .convert = gray_to_monowhite
2a877875
FB
1882 },
1883 [PIX_FMT_MONOBLACK] = {
ef9f7306 1884 .convert = gray_to_monoblack
2a877875 1885 },
524c6b63
FB
1886 },
1887 [PIX_FMT_MONOWHITE] = {
2a877875 1888 [PIX_FMT_GRAY8] = {
ef9f7306 1889 .convert = monowhite_to_gray
524c6b63
FB
1890 },
1891 },
1892 [PIX_FMT_MONOBLACK] = {
2a877875 1893 [PIX_FMT_GRAY8] = {
ef9f7306 1894 .convert = monoblack_to_gray
524c6b63
FB
1895 },
1896 },
7e6d70d0
FB
1897 [PIX_FMT_PAL8] = {
1898 [PIX_FMT_RGB555] = {
1899 .convert = pal8_to_rgb555
1900 },
1901 [PIX_FMT_RGB565] = {
1902 .convert = pal8_to_rgb565
1903 },
1904 [PIX_FMT_BGR24] = {
1905 .convert = pal8_to_bgr24
1906 },
1907 [PIX_FMT_RGB24] = {
1908 .convert = pal8_to_rgb24
1909 },
1910 [PIX_FMT_RGBA32] = {
1911 .convert = pal8_to_rgba32
1912 },
1913 },
f02be79d
RS
1914 [PIX_FMT_UYVY411] = {
1915 [PIX_FMT_YUV411P] = {
1916 .convert = uyvy411_to_yuv411p,
1917 },
1918 },
1919
524c6b63
FB
1920};
1921
75917b88 1922int avpicture_alloc(AVPicture *picture,
524c6b63
FB
1923 int pix_fmt, int width, int height)
1924{
5c91a675 1925 unsigned int size;
524c6b63
FB
1926 void *ptr;
1927
1928 size = avpicture_get_size(pix_fmt, width, height);
0ecca7a4
MN
1929 if(size<0)
1930 goto fail;
524c6b63
FB
1931 ptr = av_malloc(size);
1932 if (!ptr)
1933 goto fail;
1934 avpicture_fill(picture, ptr, pix_fmt, width, height);
1935 return 0;
1936 fail:
1937 memset(picture, 0, sizeof(AVPicture));
1938 return -1;
1939}
1940
75917b88 1941void avpicture_free(AVPicture *picture)
524c6b63 1942{
8e1e6f31 1943 av_free(picture->data[0]);
524c6b63
FB
1944}
1945
c50c0bc8
FB
1946/* return true if yuv planar */
1947static inline int is_yuv_planar(PixFmtInfo *ps)
1948{
1949 return (ps->color_type == FF_COLOR_YUV ||
7e7e5940
FB
1950 ps->color_type == FF_COLOR_YUV_JPEG) &&
1951 ps->pixel_type == FF_PIXEL_PLANAR;
c50c0bc8
FB
1952}
1953
85c242d8
FB
1954/* XXX: always use linesize. Return -1 if not supported */
1955int img_convert(AVPicture *dst, int dst_pix_fmt,
da64ecc3 1956 const AVPicture *src, int src_pix_fmt,
524c6b63 1957 int src_width, int src_height)
85c242d8 1958{
c50c0bc8 1959 static int inited;
2a877875 1960 int i, ret, dst_width, dst_height, int_pix_fmt;
524c6b63
FB
1961 PixFmtInfo *src_pix, *dst_pix;
1962 ConvertEntry *ce;
1963 AVPicture tmp1, *tmp = &tmp1;
1964
1965 if (src_pix_fmt < 0 || src_pix_fmt >= PIX_FMT_NB ||
1966 dst_pix_fmt < 0 || dst_pix_fmt >= PIX_FMT_NB)
1967 return -1;
1968 if (src_width <= 0 || src_height <= 0)
1969 return 0;
69572401 1970
c50c0bc8
FB
1971 if (!inited) {
1972 inited = 1;
1973 img_convert_init();
1974 }
1975
524c6b63
FB
1976 dst_width = src_width;
1977 dst_height = src_height;
69572401 1978
524c6b63
FB
1979 dst_pix = &pix_fmt_info[dst_pix_fmt];
1980 src_pix = &pix_fmt_info[src_pix_fmt];
1981 if (src_pix_fmt == dst_pix_fmt) {
7e7e5940
FB
1982 /* no conversion needed: just copy */
1983 img_copy(dst, src, dst_pix_fmt, dst_width, dst_height);
524c6b63
FB
1984 return 0;
1985 }
1986
1987 ce = &convert_table[src_pix_fmt][dst_pix_fmt];
1988 if (ce->convert) {
ebb177dd 1989 /* specific conversion routine */
524c6b63
FB
1990 ce->convert(dst, src, dst_width, dst_height);
1991 return 0;
1992 }
1993
524c6b63 1994 /* gray to YUV */
c50c0bc8 1995 if (is_yuv_planar(dst_pix) &&
b6147995 1996 src_pix_fmt == PIX_FMT_GRAY8) {
524c6b63
FB
1997 int w, h, y;
1998 uint8_t *d;
1999
b6147995 2000 if (dst_pix->color_type == FF_COLOR_YUV_JPEG) {
7e7e5940 2001 img_copy_plane(dst->data[0], dst->linesize[0],
b6147995
FB
2002 src->data[0], src->linesize[0],
2003 dst_width, dst_height);
2004 } else {
c50c0bc8
FB
2005 img_apply_table(dst->data[0], dst->linesize[0],
2006 src->data[0], src->linesize[0],
2007 dst_width, dst_height,
2008 y_jpeg_to_ccir);
b6147995 2009 }
524c6b63
FB
2010 /* fill U and V with 128 */
2011 w = dst_width;
2012 h = dst_height;
2013 w >>= dst_pix->x_chroma_shift;
2014 h >>= dst_pix->y_chroma_shift;
2015 for(i = 1; i <= 2; i++) {
2016 d = dst->data[i];
2a877875
FB
2017 for(y = 0; y< h; y++) {
2018 memset(d, 128, w);
524c6b63
FB
2019 d += dst->linesize[i];
2020 }
b71472eb 2021 }
524c6b63
FB
2022 return 0;
2023 }
2024
2025 /* YUV to gray */
c50c0bc8 2026 if (is_yuv_planar(src_pix) &&
b6147995
FB
2027 dst_pix_fmt == PIX_FMT_GRAY8) {
2028 if (src_pix->color_type == FF_COLOR_YUV_JPEG) {
7e7e5940 2029 img_copy_plane(dst->data[0], dst->linesize[0],
b6147995
FB
2030 src->data[0], src->linesize[0],
2031 dst_width, dst_height);
2032 } else {
c50c0bc8
FB
2033 img_apply_table(dst->data[0], dst->linesize[0],
2034 src->data[0], src->linesize[0],
2035 dst_width, dst_height,
2036 y_ccir_to_jpeg);
b6147995 2037 }
524c6b63
FB
2038 return 0;
2039 }
2040
c50c0bc8
FB
2041 /* YUV to YUV planar */
2042 if (is_yuv_planar(dst_pix) && is_yuv_planar(src_pix)) {
e352ff08 2043 int x_shift, y_shift, w, h, xy_shift;
0c1a9eda 2044 void (*resize_func)(uint8_t *dst, int dst_wrap,
e352ff08 2045 const uint8_t *src, int src_wrap,
524c6b63
FB
2046 int width, int height);
2047
2048 /* compute chroma size of the smallest dimensions */
2049 w = dst_width;
2050 h = dst_height;
2051 if (dst_pix->x_chroma_shift >= src_pix->x_chroma_shift)
2052 w >>= dst_pix->x_chroma_shift;
2053 else
2054 w >>= src_pix->x_chroma_shift;
2055 if (dst_pix->y_chroma_shift >= src_pix->y_chroma_shift)
2056 h >>= dst_pix->y_chroma_shift;
2057 else
2058 h >>= src_pix->y_chroma_shift;
2059
2060 x_shift = (dst_pix->x_chroma_shift - src_pix->x_chroma_shift);
2061 y_shift = (dst_pix->y_chroma_shift - src_pix->y_chroma_shift);
e352ff08
FB
2062 xy_shift = ((x_shift & 0xf) << 4) | (y_shift & 0xf);
2063 /* there must be filters for conversion at least from and to
2064 YUV444 format */
2065 switch(xy_shift) {
2066 case 0x00:
7e7e5940 2067 resize_func = img_copy_plane;
e352ff08
FB
2068 break;
2069 case 0x10:
2070 resize_func = shrink21;
2071 break;
2072 case 0x20:
2073 resize_func = shrink41;
2074 break;
2075 case 0x01:
2076 resize_func = shrink12;
2077 break;
2078 case 0x11:
524c6b63 2079 resize_func = shrink22;
e352ff08
FB
2080 break;
2081 case 0x22:
2082 resize_func = shrink44;
2083 break;
2084 case 0xf0:
2085 resize_func = grow21;
2086 break;
2087 case 0xe0:
2088 resize_func = grow41;
2089 break;
2090 case 0xff:
524c6b63 2091 resize_func = grow22;
e352ff08
FB
2092 break;
2093 case 0xee:
2094 resize_func = grow44;
2095 break;
2096 case 0xf1:
524c6b63 2097 resize_func = conv411;
e352ff08
FB
2098 break;
2099 default:
524c6b63 2100 /* currently not handled */
e352ff08 2101 goto no_chroma_filter;
85c242d8 2102 }
524c6b63 2103
7e7e5940
FB
2104 img_copy_plane(dst->data[0], dst->linesize[0],
2105 src->data[0], src->linesize[0],
2106 dst_width, dst_height);
566986ee 2107
524c6b63 2108 for(i = 1;i <= 2; i++)
566986ee
MK
2109 resize_func(dst->data[i], dst->linesize[i],
2110 src->data[i], src->linesize[i],
185fdc54 2111 dst_width>>dst_pix->x_chroma_shift, dst_height>>dst_pix->y_chroma_shift);
c50c0bc8
FB
2112 /* if yuv color space conversion is needed, we do it here on
2113 the destination image */
2114 if (dst_pix->color_type != src_pix->color_type) {
2115 const uint8_t *y_table, *c_table;
2116 if (dst_pix->color_type == FF_COLOR_YUV) {
2117 y_table = y_jpeg_to_ccir;
2118 c_table = c_jpeg_to_ccir;
2119 } else {
2120 y_table = y_ccir_to_jpeg;
2121 c_table = c_ccir_to_jpeg;
2122 }
2123 img_apply_table(dst->data[0], dst->linesize[0],
2124 dst->data[0], dst->linesize[0],
2125 dst_width, dst_height,
2126 y_table);
2127
2128 for(i = 1;i <= 2; i++)
2129 img_apply_table(dst->data[i], dst->linesize[i],
2130 dst->data[i], dst->linesize[i],
2131 dst_width>>dst_pix->x_chroma_shift,
2132 dst_height>>dst_pix->y_chroma_shift,
2133 c_table);
2134 }
2135 return 0;
85c242d8 2136 }
e352ff08 2137 no_chroma_filter:
524c6b63 2138
2a877875 2139 /* try to use an intermediate format */
c50c0bc8
FB
2140 if (src_pix_fmt == PIX_FMT_YUV422 ||
2141 dst_pix_fmt == PIX_FMT_YUV422) {
2142 /* specific case: convert to YUV422P first */
2143 int_pix_fmt = PIX_FMT_YUV422P;
ebb177dd
TK
2144 } else if (src_pix_fmt == PIX_FMT_UYVY422 ||
2145 dst_pix_fmt == PIX_FMT_UYVY422) {
2146 /* specific case: convert to YUV422P first */
2147 int_pix_fmt = PIX_FMT_YUV422P;
f02be79d
RS
2148 } else if (src_pix_fmt == PIX_FMT_UYVY411 ||
2149 dst_pix_fmt == PIX_FMT_UYVY411) {
2150 /* specific case: convert to YUV411P first */
2151 int_pix_fmt = PIX_FMT_YUV411P;
c50c0bc8
FB
2152 } else if ((src_pix->color_type == FF_COLOR_GRAY &&
2153 src_pix_fmt != PIX_FMT_GRAY8) ||
2154 (dst_pix->color_type == FF_COLOR_GRAY &&
2155 dst_pix_fmt != PIX_FMT_GRAY8)) {
2156 /* gray8 is the normalized format */
2a877875 2157 int_pix_fmt = PIX_FMT_GRAY8;
c50c0bc8
FB
2158 } else if ((is_yuv_planar(src_pix) &&
2159 src_pix_fmt != PIX_FMT_YUV444P &&
2160 src_pix_fmt != PIX_FMT_YUVJ444P)) {
2161 /* yuv444 is the normalized format */
2162 if (src_pix->color_type == FF_COLOR_YUV_JPEG)
2163 int_pix_fmt = PIX_FMT_YUVJ444P;
2164 else
2165 int_pix_fmt = PIX_FMT_YUV444P;
2166 } else if ((is_yuv_planar(dst_pix) &&
2167 dst_pix_fmt != PIX_FMT_YUV444P &&
2168 dst_pix_fmt != PIX_FMT_YUVJ444P)) {
2169 /* yuv444 is the normalized format */
2170 if (dst_pix->color_type == FF_COLOR_YUV_JPEG)
2171 int_pix_fmt = PIX_FMT_YUVJ444P;
2172 else
2173 int_pix_fmt = PIX_FMT_YUV444P;
2a877875 2174 } else {
c50c0bc8
FB
2175 /* the two formats are rgb or gray8 or yuv[j]444p */
2176 if (src_pix->is_alpha && dst_pix->is_alpha)
2177 int_pix_fmt = PIX_FMT_RGBA32;
2178 else
2179 int_pix_fmt = PIX_FMT_RGB24;
2a877875
FB
2180 }
2181 if (avpicture_alloc(tmp, int_pix_fmt, dst_width, dst_height) < 0)
2182 return -1;
2183 ret = -1;
2184 if (img_convert(tmp, int_pix_fmt,
2185 src, src_pix_fmt, src_width, src_height) < 0)
2186 goto fail1;
2187 if (img_convert(dst, dst_pix_fmt,
2188 tmp, int_pix_fmt, dst_width, dst_height) < 0)
2189 goto fail1;
2190 ret = 0;
2191 fail1:
2192 avpicture_free(tmp);
2193 return ret;
85c242d8
FB
2194}
2195
0469baf1 2196/* NOTE: we scan all the pixels to have an exact information */
da64ecc3 2197static int get_alpha_info_pal8(const AVPicture *src, int width, int height)
0469baf1
FB
2198{
2199 const unsigned char *p;
2200 int src_wrap, ret, x, y;
2201 unsigned int a;
2202 uint32_t *palette = (uint32_t *)src->data[1];
2203
2204 p = src->data[0];
2205 src_wrap = src->linesize[0] - width;
2206 ret = 0;
2207 for(y=0;y<height;y++) {
2208 for(x=0;x<width;x++) {
2209 a = palette[p[0]] >> 24;
2210 if (a == 0x00) {
2211 ret |= FF_ALPHA_TRANSP;
2212 } else if (a != 0xff) {
2213 ret |= FF_ALPHA_SEMI_TRANSP;
2214 }
2215 p++;
2216 }
2217 p += src_wrap;
2218 }
2219 return ret;
2220}
2221
2222/**
2223 * Tell if an image really has transparent alpha values.
2224 * @return ored mask of FF_ALPHA_xxx constants
2225 */
da64ecc3
DH
2226int img_get_alpha_info(const AVPicture *src,
2227 int pix_fmt, int width, int height)
0469baf1
FB
2228{
2229 PixFmtInfo *pf = &pix_fmt_info[pix_fmt];
2230 int ret;
2231
2232 pf = &pix_fmt_info[pix_fmt];
2233 /* no alpha can be represented in format */
2234 if (!pf->is_alpha)
2235 return 0;
2236 switch(pix_fmt) {
2237 case PIX_FMT_RGBA32:
2238 ret = get_alpha_info_rgba32(src, width, height);
2239 break;
2240 case PIX_FMT_RGB555:
2241 ret = get_alpha_info_rgb555(src, width, height);
2242 break;
2243 case PIX_FMT_PAL8:
2244 ret = get_alpha_info_pal8(src, width, height);
2245 break;
2246 default:
2247 /* we do not know, so everything is indicated */
2248 ret = FF_ALPHA_TRANSP | FF_ALPHA_SEMI_TRANSP;
2249 break;
2250 }
2251 return ret;
2252}
5981f4e6
F
2253
2254#ifdef HAVE_MMX
2255#define DEINT_INPLACE_LINE_LUM \
2256 movd_m2r(lum_m4[0],mm0);\
2257 movd_m2r(lum_m3[0],mm1);\
2258 movd_m2r(lum_m2[0],mm2);\
2259 movd_m2r(lum_m1[0],mm3);\
2260 movd_m2r(lum[0],mm4);\
2261 punpcklbw_r2r(mm7,mm0);\
2262 movd_r2m(mm2,lum_m4[0]);\
2263 punpcklbw_r2r(mm7,mm1);\
2264 punpcklbw_r2r(mm7,mm2);\
2265 punpcklbw_r2r(mm7,mm3);\
2266 punpcklbw_r2r(mm7,mm4);\
2267 paddw_r2r(mm3,mm1);\
2268 psllw_i2r(1,mm2);\
2269 paddw_r2r(mm4,mm0);\
2270 psllw_i2r(2,mm1);\
2271 paddw_r2r(mm6,mm2);\
2272 paddw_r2r(mm2,mm1);\
2273 psubusw_r2r(mm0,mm1);\
2274 psrlw_i2r(3,mm1);\
2275 packuswb_r2r(mm7,mm1);\
2276 movd_r2m(mm1,lum_m2[0]);
2277
2278#define DEINT_LINE_LUM \
2279 movd_m2r(lum_m4[0],mm0);\
2280 movd_m2r(lum_m3[0],mm1);\
2281 movd_m2r(lum_m2[0],mm2);\
2282 movd_m2r(lum_m1[0],mm3);\
2283 movd_m2r(lum[0],mm4);\
2284 punpcklbw_r2r(mm7,mm0);\
2285 punpcklbw_r2r(mm7,mm1);\
2286 punpcklbw_r2r(mm7,mm2);\
2287 punpcklbw_r2r(mm7,mm3);\
2288 punpcklbw_r2r(mm7,mm4);\
2289 paddw_r2r(mm3,mm1);\
2290 psllw_i2r(1,mm2);\
2291 paddw_r2r(mm4,mm0);\
2292 psllw_i2r(2,mm1);\
2293 paddw_r2r(mm6,mm2);\
2294 paddw_r2r(mm2,mm1);\
2295 psubusw_r2r(mm0,mm1);\
2296 psrlw_i2r(3,mm1);\
2297 packuswb_r2r(mm7,mm1);\
2298 movd_r2m(mm1,dst[0]);
2299#endif
2300
85c242d8 2301/* filter parameters: [-1 4 2 4 -1] // 8 */
da64ecc3
DH
2302static void deinterlace_line(uint8_t *dst,
2303 const uint8_t *lum_m4, const uint8_t *lum_m3,
2304 const uint8_t *lum_m2, const uint8_t *lum_m1,
2305 const uint8_t *lum,
2306 int size)
85c242d8 2307{
5981f4e6 2308#ifndef HAVE_MMX
0c1a9eda 2309 uint8_t *cm = cropTbl + MAX_NEG_CROP;
85c242d8 2310 int sum;
85c242d8
FB
2311
2312 for(;size > 0;size--) {
5981f4e6
F
2313 sum = -lum_m4[0];
2314 sum += lum_m3[0] << 2;
2315 sum += lum_m2[0] << 1;
2316 sum += lum_m1[0] << 2;
2317 sum += -lum[0];
85c242d8 2318 dst[0] = cm[(sum + 4) >> 3];
5981f4e6
F
2319 lum_m4++;
2320 lum_m3++;
2321 lum_m2++;
2322 lum_m1++;
2323 lum++;
85c242d8 2324 dst++;
85c242d8 2325 }
5981f4e6
F
2326#else
2327
782c5984
MN
2328 {
2329 mmx_t rounder;
2330 rounder.uw[0]=4;
2331 rounder.uw[1]=4;
2332 rounder.uw[2]=4;
2333 rounder.uw[3]=4;
2334 pxor_r2r(mm7,mm7);
2335 movq_m2r(rounder,mm6);
2336 }
5981f4e6
F
2337 for (;size > 3; size-=4) {
2338 DEINT_LINE_LUM
2339 lum_m4+=4;
2340 lum_m3+=4;
2341 lum_m2+=4;
2342 lum_m1+=4;
2343 lum+=4;
2344 dst+=4;
2345 }
2346#endif
2347}
0c1a9eda 2348static void deinterlace_line_inplace(uint8_t *lum_m4, uint8_t *lum_m3, uint8_t *lum_m2, uint8_t *lum_m1, uint8_t *lum,
5981f4e6
F
2349 int size)
2350{
2351#ifndef HAVE_MMX
0c1a9eda 2352 uint8_t *cm = cropTbl + MAX_NEG_CROP;
5981f4e6
F
2353 int sum;
2354
2355 for(;size > 0;size--) {
2356 sum = -lum_m4[0];
2357 sum += lum_m3[0] << 2;
2358 sum += lum_m2[0] << 1;
2359 lum_m4[0]=lum_m2[0];
2360 sum += lum_m1[0] << 2;
2361 sum += -lum[0];
2362 lum_m2[0] = cm[(sum + 4) >> 3];
2363 lum_m4++;
2364 lum_m3++;
2365 lum_m2++;
2366 lum_m1++;
2367 lum++;
2368 }
2369#else
2370
782c5984
MN
2371 {
2372 mmx_t rounder;
2373 rounder.uw[0]=4;
2374 rounder.uw[1]=4;
2375 rounder.uw[2]=4;
2376 rounder.uw[3]=4;
2377 pxor_r2r(mm7,mm7);
2378 movq_m2r(rounder,mm6);
2379 }
5981f4e6
F
2380 for (;size > 3; size-=4) {
2381 DEINT_INPLACE_LINE_LUM
2382 lum_m4+=4;
2383 lum_m3+=4;
2384 lum_m2+=4;
2385 lum_m1+=4;
2386 lum+=4;
2387 }
2388#endif
85c242d8
FB
2389}
2390
2391/* deinterlacing : 2 temporal taps, 3 spatial taps linear filter. The
2392 top field is copied as is, but the bottom field is deinterlaced
2393 against the top field. */
0c1a9eda 2394static void deinterlace_bottom_field(uint8_t *dst, int dst_wrap,
da64ecc3 2395 const uint8_t *src1, int src_wrap,
5981f4e6 2396 int width, int height)
85c242d8 2397{
da64ecc3 2398 const uint8_t *src_m2, *src_m1, *src_0, *src_p1, *src_p2;
5981f4e6
F
2399 int y;
2400
2401 src_m2 = src1;
2402 src_m1 = src1;
2403 src_0=&src_m1[src_wrap];
2404 src_p1=&src_0[src_wrap];
2405 src_p2=&src_p1[src_wrap];
2406 for(y=0;y<(height-2);y+=2) {
2407 memcpy(dst,src_m1,width);
85c242d8 2408 dst += dst_wrap;
5981f4e6
F
2409 deinterlace_line(dst,src_m2,src_m1,src_0,src_p1,src_p2,width);
2410 src_m2 = src_0;
2411 src_m1 = src_p1;
2412 src_0 = src_p2;
2413 src_p1 += 2*src_wrap;
2414 src_p2 += 2*src_wrap;
85c242d8 2415 dst += dst_wrap;
85c242d8 2416 }
5981f4e6
F
2417 memcpy(dst,src_m1,width);
2418 dst += dst_wrap;
2419 /* do last line */
2420 deinterlace_line(dst,src_m2,src_m1,src_0,src_0,src_0,width);
2421}
2422
0c1a9eda 2423static void deinterlace_bottom_field_inplace(uint8_t *src1, int src_wrap,
da64ecc3 2424 int width, int height)
5981f4e6 2425{
0c1a9eda 2426 uint8_t *src_m1, *src_0, *src_p1, *src_p2;
5981f4e6 2427 int y;
0c1a9eda
ZK
2428 uint8_t *buf;
2429 buf = (uint8_t*)av_malloc(width);
5981f4e6
F
2430
2431 src_m1 = src1;
2432 memcpy(buf,src_m1,width);
2433 src_0=&src_m1[src_wrap];
2434 src_p1=&src_0[src_wrap];
2435 src_p2=&src_p1[src_wrap];
2436 for(y=0;y<(height-2);y+=2) {
2437 deinterlace_line_inplace(buf,src_m1,src_0,src_p1,src_p2,width);
2438 src_m1 = src_p1;
2439 src_0 = src_p2;
2440 src_p1 += 2*src_wrap;
2441 src_p2 += 2*src_wrap;
2442 }
2443 /* do last line */
2444 deinterlace_line_inplace(buf,src_m1,src_0,src_0,src_0,width);
6000abfa 2445 av_free(buf);
85c242d8
FB
2446}
2447
2448
5981f4e6 2449/* deinterlace - if not supported return -1 */
da64ecc3 2450int avpicture_deinterlace(AVPicture *dst, const AVPicture *src,
de6d9b64
FB
2451 int pix_fmt, int width, int height)
2452{
85c242d8
FB
2453 int i;
2454
2455 if (pix_fmt != PIX_FMT_YUV420P &&
2456 pix_fmt != PIX_FMT_YUV422P &&
47017dd8
RS
2457 pix_fmt != PIX_FMT_YUV444P &&
2458 pix_fmt != PIX_FMT_YUV411P)
85c242d8 2459 return -1;
5981f4e6 2460 if ((width & 3) != 0 || (height & 3) != 0)
85c242d8 2461 return -1;
5981f4e6 2462
85c242d8
FB
2463 for(i=0;i<3;i++) {
2464 if (i == 1) {
2465 switch(pix_fmt) {
2466 case PIX_FMT_YUV420P:
2467 width >>= 1;
2468 height >>= 1;
2469 break;
2470 case PIX_FMT_YUV422P:
2471 width >>= 1;
2472 break;
47017dd8
RS
2473 case PIX_FMT_YUV411P:
2474 width >>= 2;
2475 break;
85c242d8
FB
2476 default:
2477 break;
2478 }
2479 }
5981f4e6 2480 if (src == dst) {
da64ecc3 2481 deinterlace_bottom_field_inplace(dst->data[i], dst->linesize[i],
85c242d8 2482 width, height);
5981f4e6
F
2483 } else {
2484 deinterlace_bottom_field(dst->data[i],dst->linesize[i],
2485 src->data[i], src->linesize[i],
2486 width, height);
2487 }
de6d9b64 2488 }
5981f4e6
F
2489#ifdef HAVE_MMX
2490 emms();
2491#endif
85c242d8 2492 return 0;
de6d9b64 2493}
cd4af68a
ZK
2494
2495#undef FIX