configure: fix sh_quote function
[libav.git] / libswscale / swscale-test.c
1 /*
2 * Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
3 *
4 * This file is part of FFmpeg.
5 *
6 * FFmpeg is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * FFmpeg is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with FFmpeg; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24 #include <inttypes.h>
25 #include <stdarg.h>
26
27 #undef HAVE_AV_CONFIG_H
28 #include "libavutil/mem.h"
29 #include "libavutil/avutil.h"
30 #include "libavutil/pixdesc.h"
31 #include "libavutil/lfg.h"
32 #include "swscale.h"
33
34 /* HACK Duplicated from swscale_internal.h.
35 * Should be removed when a cleaner pixel format system exists. */
36 #define isGray(x) ( \
37 (x)==PIX_FMT_GRAY8 \
38 || (x)==PIX_FMT_GRAY16BE \
39 || (x)==PIX_FMT_GRAY16LE \
40 )
41 #define hasChroma(x) (!( \
42 isGray(x) \
43 || (x)==PIX_FMT_MONOBLACK \
44 || (x)==PIX_FMT_MONOWHITE \
45 ))
46 #define isALPHA(x) ( \
47 (x)==PIX_FMT_BGR32 \
48 || (x)==PIX_FMT_BGR32_1 \
49 || (x)==PIX_FMT_RGB32 \
50 || (x)==PIX_FMT_RGB32_1 \
51 || (x)==PIX_FMT_YUVA420P \
52 )
53
54 static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, int w, int h)
55 {
56 int x,y;
57 uint64_t ssd=0;
58
59 //printf("%d %d\n", w, h);
60
61 for (y=0; y<h; y++) {
62 for (x=0; x<w; x++) {
63 int d= src1[x + y*stride1] - src2[x + y*stride2];
64 ssd+= d*d;
65 //printf("%d", abs(src1[x + y*stride1] - src2[x + y*stride2])/26 );
66 }
67 //printf("\n");
68 }
69 return ssd;
70 }
71
72 // test by ref -> src -> dst -> out & compare out against ref
73 // ref & out are YV12
74 static int doTest(uint8_t *ref[4], int refStride[4], int w, int h,
75 uint8_t *src[4], int srcStride[4],
76 enum PixelFormat srcFormat, enum PixelFormat dstFormat,
77 int srcW, int srcH, int dstW, int dstH, int flags)
78 {
79 uint8_t *dst[4] = {0};
80 uint8_t *out[4] = {0};
81 int dstStride[4];
82 int i;
83 uint64_t ssdY, ssdU=0, ssdV=0, ssdA=0;
84 struct SwsContext *dstContext = NULL, *outContext = NULL;
85 int res;
86
87 res = 0;
88 for (i=0; i<4; i++) {
89 // avoid stride % bpp != 0
90 if (dstFormat==PIX_FMT_RGB24 || dstFormat==PIX_FMT_BGR24)
91 dstStride[i]= dstW*3;
92 else if (dstFormat==PIX_FMT_RGB48BE || dstFormat==PIX_FMT_RGB48LE)
93 dstStride[i]= dstW*6;
94 else
95 dstStride[i]= dstW*4;
96
97 /* Image buffers passed into libswscale can be allocated any way you
98 * prefer, as long as they're aligned enough for the architecture, and
99 * they're freed appropriately (such as using av_free for buffers
100 * allocated with av_malloc). */
101 /* An extra 16 bytes is being allocated because some scalers may write
102 * out of bounds. */
103 dst[i]= av_mallocz(dstStride[i]*dstH+16);
104 out[i]= av_mallocz(refStride[i]*h);
105 if (!dst[i] || !out[i]) {
106 perror("Malloc");
107 res = -1;
108
109 goto end;
110 }
111 }
112
113 dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL);
114 if (!dstContext) {
115 fprintf(stderr, "Failed to get %s ---> %s\n",
116 av_pix_fmt_descriptors[srcFormat].name,
117 av_pix_fmt_descriptors[dstFormat].name);
118 res = -1;
119
120 goto end;
121 }
122 outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUVA420P, flags, NULL, NULL, NULL);
123 if (!outContext) {
124 fprintf(stderr, "Failed to get %s ---> %s\n",
125 av_pix_fmt_descriptors[dstFormat].name,
126 av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name);
127 res = -1;
128
129 goto end;
130 }
131 // printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2],
132 // (int)src[0], (int)src[1], (int)src[2]);
133
134 printf(" %s %dx%d -> %s %3dx%3d flags=%2d",
135 av_pix_fmt_descriptors[srcFormat].name, srcW, srcH,
136 av_pix_fmt_descriptors[dstFormat].name, dstW, dstH,
137 flags);
138 fflush(stdout);
139
140 sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
141 sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);
142
143 ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
144 if (hasChroma(srcFormat) && hasChroma(dstFormat)) {
145 //FIXME check that output is really gray
146 ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);
147 ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);
148 }
149 if (isALPHA(srcFormat) && isALPHA(dstFormat))
150 ssdA= getSSD(ref[3], out[3], refStride[3], refStride[3], w, h);
151
152 ssdY/= w*h;
153 ssdU/= w*h/4;
154 ssdV/= w*h/4;
155 ssdA/= w*h;
156
157 printf(" SSD=%5"PRId64",%5"PRId64",%5"PRId64",%5"PRId64"\n",
158 ssdY, ssdU, ssdV, ssdA);
159
160 end:
161
162 sws_freeContext(dstContext);
163 sws_freeContext(outContext);
164
165 for (i=0; i<4; i++) {
166 av_free(dst[i]);
167 av_free(out[i]);
168 }
169
170 return res;
171 }
172
173 static void selfTest(uint8_t *ref[4], int refStride[4], int w, int h)
174 {
175 const int flags[] = { SWS_FAST_BILINEAR,
176 SWS_BILINEAR, SWS_BICUBIC,
177 SWS_X , SWS_POINT , SWS_AREA, 0 };
178 const int srcW = w;
179 const int srcH = h;
180 const int dstW[] = { srcW - srcW/3, srcW, srcW + srcW/3, 0 };
181 const int dstH[] = { srcH - srcH/3, srcH, srcH + srcH/3, 0 };
182 enum PixelFormat srcFormat, dstFormat;
183
184 for (srcFormat = 0; srcFormat < PIX_FMT_NB; srcFormat++) {
185 if (!sws_isSupportedInput(srcFormat) || !sws_isSupportedOutput(srcFormat))
186 continue;
187
188 for (dstFormat = 0; dstFormat < PIX_FMT_NB; dstFormat++) {
189 int i, j, k;
190 int res = 0;
191
192 if (!sws_isSupportedInput(dstFormat) || !sws_isSupportedOutput(dstFormat))
193 continue;
194
195 printf("%s -> %s\n",
196 av_pix_fmt_descriptors[srcFormat].name,
197 av_pix_fmt_descriptors[dstFormat].name);
198 fflush(stdout);
199
200 for (k = 0; flags[k] && !res; k++) {
201 struct SwsContext *srcContext = NULL;
202 uint8_t *src[4] = {0};
203 int srcStride[4];
204 int p;
205 for (p = 0; p < 4; p++) {
206 if (srcFormat == PIX_FMT_RGB24 ||
207 srcFormat == PIX_FMT_BGR24)
208 srcStride[p] = srcW*3;
209 else if (srcFormat==PIX_FMT_RGB48BE ||
210 srcFormat==PIX_FMT_RGB48LE)
211 srcStride[p] = srcW*6;
212 else
213 srcStride[p] = srcW*4;
214 src[p] = av_mallocz(srcStride[p]*srcH+16);
215 if (!src[p]) {
216 perror("Malloc");
217 return;
218 }
219 }
220 srcContext = sws_getContext(w, h, PIX_FMT_YUVA420P, srcW, srcH,
221 srcFormat, flags[k], NULL, NULL, NULL);
222 if (!srcContext) {
223 fprintf(stderr, "Failed to get %s ---> %s\n",
224 av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name,
225 av_pix_fmt_descriptors[srcFormat].name);
226 return;
227 }
228 sws_scale(srcContext, ref, refStride, 0, h, src, srcStride);
229
230 for (i = 0; dstW[i] && !res; i++)
231 for (j = 0; dstH[j] && !res; j++)
232 res = doTest(ref, refStride, w, h, src, srcStride,
233 srcFormat, dstFormat,
234 srcW, srcH, dstW[i], dstH[j], flags[k]);
235
236 sws_freeContext(srcContext);
237 for (p = 0; p < 4; p++)
238 av_free(src[p]);
239 }
240 }
241 }
242 }
243
244 #define W 96
245 #define H 96
246
247 int main(int argc, char **argv)
248 {
249 uint8_t *rgb_data = av_malloc (W*H*4);
250 uint8_t *rgb_src[3]= {rgb_data, NULL, NULL};
251 int rgb_stride[3]={4*W, 0, 0};
252 uint8_t *data = av_malloc (4*W*H);
253 uint8_t *src[4]= {data, data+W*H, data+W*H*2, data+W*H*3};
254 int stride[4]={W, W, W, W};
255 int x, y;
256 struct SwsContext *sws;
257 AVLFG rand;
258
259 if (!rgb_data || !data)
260 return -1;
261
262 sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUVA420P, SWS_BILINEAR, NULL, NULL, NULL);
263
264 av_lfg_init(&rand, 1);
265
266 for (y=0; y<H; y++) {
267 for (x=0; x<W*4; x++) {
268 rgb_data[ x + y*4*W]= av_lfg_get(&rand);
269 }
270 }
271 sws_scale(sws, rgb_src, rgb_stride, 0, H, src, stride);
272 sws_freeContext(sws);
273 av_free(rgb_data);
274
275 selfTest(src, stride, W, H);
276 av_free(data);
277
278 return 0;
279 }