2 * Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
4 * This file is part of FFmpeg.
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.
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.
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
27 #undef HAVE_AV_CONFIG_H
28 #include "libavcore/imgutils.h"
29 #include "libavutil/mem.h"
30 #include "libavutil/avutil.h"
31 #include "libavutil/crc.h"
32 #include "libavutil/pixdesc.h"
33 #include "libavutil/lfg.h"
36 /* HACK Duplicated from swscale_internal.h.
37 * Should be removed when a cleaner pixel format system exists. */
40 || (x)==PIX_FMT_GRAY16BE \
41 || (x)==PIX_FMT_GRAY16LE \
43 #define hasChroma(x) (!( \
45 || (x)==PIX_FMT_MONOBLACK \
46 || (x)==PIX_FMT_MONOWHITE \
48 #define isALPHA(x) ( \
50 || (x)==PIX_FMT_BGR32_1 \
51 || (x)==PIX_FMT_RGB32 \
52 || (x)==PIX_FMT_RGB32_1 \
53 || (x)==PIX_FMT_YUVA420P \
56 static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1, int stride2, int w, int h)
61 //printf("%d %d\n", w, h);
65 int d= src1[x + y*stride1] - src2[x + y*stride2];
67 //printf("%d", abs(src1[x + y*stride1] - src2[x + y*stride2])/26 );
82 // test by ref -> src -> dst -> out & compare out against ref
84 static int doTest(uint8_t *ref[4], int refStride[4], int w, int h,
85 enum PixelFormat srcFormat, enum PixelFormat dstFormat,
86 int srcW, int srcH, int dstW, int dstH, int flags,
89 static enum PixelFormat cur_srcFormat;
90 static int cur_srcW, cur_srcH;
91 static uint8_t *src[4];
92 static int srcStride[4];
93 uint8_t *dst[4] = {0};
94 uint8_t *out[4] = {0};
97 uint64_t ssdY, ssdU=0, ssdV=0, ssdA=0;
98 struct SwsContext *dstContext = NULL, *outContext = NULL;
102 if (cur_srcFormat != srcFormat || cur_srcW != srcW || cur_srcH != srcH) {
103 struct SwsContext *srcContext = NULL;
106 for (p = 0; p < 4; p++)
110 av_image_fill_linesizes(srcStride, srcFormat, srcW);
111 for (p = 0; p < 4; p++) {
113 src[p] = av_mallocz(srcStride[p]*srcH+16);
114 if (srcStride[p] && !src[p]) {
121 srcContext = sws_getContext(w, h, PIX_FMT_YUVA420P, srcW, srcH,
122 srcFormat, SWS_BILINEAR, NULL, NULL, NULL);
124 fprintf(stderr, "Failed to get %s ---> %s\n",
125 av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name,
126 av_pix_fmt_descriptors[srcFormat].name);
131 sws_scale(srcContext, ref, refStride, 0, h, src, srcStride);
132 sws_freeContext(srcContext);
134 cur_srcFormat = srcFormat;
139 av_image_fill_linesizes(dstStride, dstFormat, dstW);
140 for (i=0; i<4; i++) {
141 /* Image buffers passed into libswscale can be allocated any way you
142 * prefer, as long as they're aligned enough for the architecture, and
143 * they're freed appropriately (such as using av_free for buffers
144 * allocated with av_malloc). */
145 /* An extra 16 bytes is being allocated because some scalers may write
148 dst[i]= av_mallocz(dstStride[i]*dstH+16);
149 if (dstStride[i] && !dst[i]) {
157 dstContext= sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat, flags, NULL, NULL, NULL);
159 fprintf(stderr, "Failed to get %s ---> %s\n",
160 av_pix_fmt_descriptors[srcFormat].name,
161 av_pix_fmt_descriptors[dstFormat].name);
166 // printf("test %X %X %X -> %X %X %X\n", (int)ref[0], (int)ref[1], (int)ref[2],
167 // (int)src[0], (int)src[1], (int)src[2]);
169 printf(" %s %dx%d -> %s %3dx%3d flags=%2d",
170 av_pix_fmt_descriptors[srcFormat].name, srcW, srcH,
171 av_pix_fmt_descriptors[dstFormat].name, dstW, dstH,
175 sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
177 for (i = 0; i < 4 && dstStride[i]; i++) {
178 crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), crc, dst[i], dstStride[i] * dstH);
181 if (r && crc == r->crc) {
187 for (i=0; i<4; i++) {
189 out[i]= av_mallocz(refStride[i]*h);
190 if (refStride[i] && !out[i]) {
197 outContext= sws_getContext(dstW, dstH, dstFormat, w, h, PIX_FMT_YUVA420P, SWS_BILINEAR, NULL, NULL, NULL);
199 fprintf(stderr, "Failed to get %s ---> %s\n",
200 av_pix_fmt_descriptors[dstFormat].name,
201 av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name);
206 sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);
208 ssdY= getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
209 if (hasChroma(srcFormat) && hasChroma(dstFormat)) {
210 //FIXME check that output is really gray
211 ssdU= getSSD(ref[1], out[1], refStride[1], refStride[1], (w+1)>>1, (h+1)>>1);
212 ssdV= getSSD(ref[2], out[2], refStride[2], refStride[2], (w+1)>>1, (h+1)>>1);
214 if (isALPHA(srcFormat) && isALPHA(dstFormat))
215 ssdA= getSSD(ref[3], out[3], refStride[3], refStride[3], w, h);
222 sws_freeContext(outContext);
224 for (i=0; i<4; i++) {
230 printf(" CRC=%08x SSD=%5"PRId64",%5"PRId64",%5"PRId64",%5"PRId64"\n",
231 crc, ssdY, ssdU, ssdV, ssdA);
235 sws_freeContext(dstContext);
237 for (i=0; i<4; i++) {
245 static void selfTest(uint8_t *ref[4], int refStride[4], int w, int h,
246 enum PixelFormat srcFormat_in,
247 enum PixelFormat dstFormat_in)
249 const int flags[] = { SWS_FAST_BILINEAR,
250 SWS_BILINEAR, SWS_BICUBIC,
251 SWS_X , SWS_POINT , SWS_AREA, 0 };
254 const int dstW[] = { srcW - srcW/3, srcW, srcW + srcW/3, 0 };
255 const int dstH[] = { srcH - srcH/3, srcH, srcH + srcH/3, 0 };
256 enum PixelFormat srcFormat, dstFormat;
258 for (srcFormat = srcFormat_in != PIX_FMT_NONE ? srcFormat_in : 0;
259 srcFormat < PIX_FMT_NB; srcFormat++) {
260 if (!sws_isSupportedInput(srcFormat) || !sws_isSupportedOutput(srcFormat))
263 for (dstFormat = dstFormat_in != PIX_FMT_NONE ? dstFormat_in : 0;
264 dstFormat < PIX_FMT_NB; dstFormat++) {
268 if (!sws_isSupportedInput(dstFormat) || !sws_isSupportedOutput(dstFormat))
272 av_pix_fmt_descriptors[srcFormat].name,
273 av_pix_fmt_descriptors[dstFormat].name);
276 for (k = 0; flags[k] && !res; k++) {
277 for (i = 0; dstW[i] && !res; i++)
278 for (j = 0; dstH[j] && !res; j++)
279 res = doTest(ref, refStride, w, h,
280 srcFormat, dstFormat,
281 srcW, srcH, dstW[i], dstH[j], flags[k],
284 if (dstFormat_in != PIX_FMT_NONE)
287 if (srcFormat_in != PIX_FMT_NONE)
292 static int fileTest(uint8_t *ref[4], int refStride[4], int w, int h, FILE *fp,
293 enum PixelFormat srcFormat_in,
294 enum PixelFormat dstFormat_in)
298 while (fgets(buf, sizeof(buf), fp)) {
300 enum PixelFormat srcFormat;
303 enum PixelFormat dstFormat;
309 ret = sscanf(buf, " %12s %dx%d -> %12s %dx%d flags=%d CRC=%x"
310 " SSD=%"PRId64", %"PRId64", %"PRId64", %"PRId64"\n",
311 srcStr, &srcW, &srcH, dstStr, &dstW, &dstH,
312 &flags, &r.crc, &r.ssdY, &r.ssdU, &r.ssdV, &r.ssdA);
314 srcStr[0] = dstStr[0] = 0;
315 ret = sscanf(buf, "%12s -> %12s\n", srcStr, dstStr);
318 srcFormat = av_get_pix_fmt(srcStr);
319 dstFormat = av_get_pix_fmt(dstStr);
321 if (srcFormat == PIX_FMT_NONE || dstFormat == PIX_FMT_NONE) {
322 fprintf(stderr, "malformed input file\n");
325 if ((srcFormat_in != PIX_FMT_NONE && srcFormat_in != srcFormat) ||
326 (dstFormat_in != PIX_FMT_NONE && dstFormat_in != dstFormat))
333 doTest(ref, refStride, w, h,
334 srcFormat, dstFormat,
335 srcW, srcH, dstW, dstH, flags,
345 int main(int argc, char **argv)
347 enum PixelFormat srcFormat = PIX_FMT_NONE;
348 enum PixelFormat dstFormat = PIX_FMT_NONE;
349 uint8_t *rgb_data = av_malloc (W*H*4);
350 uint8_t *rgb_src[3]= {rgb_data, NULL, NULL};
351 int rgb_stride[3]={4*W, 0, 0};
352 uint8_t *data = av_malloc (4*W*H);
353 uint8_t *src[4]= {data, data+W*H, data+W*H*2, data+W*H*3};
354 int stride[4]={W, W, W, W};
356 struct SwsContext *sws;
361 if (!rgb_data || !data)
364 sws= sws_getContext(W/12, H/12, PIX_FMT_RGB32, W, H, PIX_FMT_YUVA420P, SWS_BILINEAR, NULL, NULL, NULL);
366 av_lfg_init(&rand, 1);
368 for (y=0; y<H; y++) {
369 for (x=0; x<W*4; x++) {
370 rgb_data[ x + y*4*W]= av_lfg_get(&rand);
373 sws_scale(sws, rgb_src, rgb_stride, 0, H, src, stride);
374 sws_freeContext(sws);
377 for (i = 1; i < argc; i += 2) {
378 if (argv[i][0] != '-' || i+1 == argc)
380 if (!strcmp(argv[i], "-ref")) {
381 FILE *fp = fopen(argv[i+1], "r");
383 fprintf(stderr, "could not open '%s'\n", argv[i+1]);
386 res = fileTest(src, stride, W, H, fp, srcFormat, dstFormat);
389 } else if (!strcmp(argv[i], "-src")) {
390 srcFormat = av_get_pix_fmt(argv[i+1]);
391 if (srcFormat == PIX_FMT_NONE) {
392 fprintf(stderr, "invalid pixel format %s\n", argv[i+1]);
395 } else if (!strcmp(argv[i], "-dst")) {
396 dstFormat = av_get_pix_fmt(argv[i+1]);
397 if (dstFormat == PIX_FMT_NONE) {
398 fprintf(stderr, "invalid pixel format %s\n", argv[i+1]);
403 fprintf(stderr, "bad option or argument missing (%s)\n", argv[i]);
408 selfTest(src, stride, W, H, srcFormat, dstFormat);