2 * Copyright (C) 2003-2011 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 "libavutil/cpu.h"
29 #include "libavutil/imgutils.h"
30 #include "libavutil/mem.h"
31 #include "libavutil/avutil.h"
32 #include "libavutil/crc.h"
33 #include "libavutil/pixdesc.h"
34 #include "libavutil/lfg.h"
36 #include "libswscale/swscale.h"
38 /* HACK Duplicated from swscale_internal.h.
39 * Should be removed when a cleaner pixel format system exists. */
41 ((x) == AV_PIX_FMT_GRAY8 || \
42 (x) == AV_PIX_FMT_YA8 || \
43 (x) == AV_PIX_FMT_GRAY16BE || \
44 (x) == AV_PIX_FMT_GRAY16LE || \
45 (x) == AV_PIX_FMT_YA16BE || \
46 (x) == AV_PIX_FMT_YA16LE)
47 #define hasChroma(x) \
49 (x) == AV_PIX_FMT_MONOBLACK || \
50 (x) == AV_PIX_FMT_MONOWHITE))
52 ((x) == AV_PIX_FMT_BGR32 || \
53 (x) == AV_PIX_FMT_BGR32_1 || \
54 (x) == AV_PIX_FMT_RGB32 || \
55 (x) == AV_PIX_FMT_RGB32_1 || \
56 (x) == AV_PIX_FMT_YUVA420P)
58 static uint64_t getSSD(const uint8_t *src1, const uint8_t *src2, int stride1,
59 int stride2, int w, int h)
64 for (y = 0; y < h; y++) {
65 for (x = 0; x < w; x++) {
66 int d = src1[x + y * stride1] - src2[x + y * stride2];
81 // test by ref -> src -> dst -> out & compare out against ref
83 static int doTest(uint8_t *ref[4], int refStride[4], int w, int h,
84 enum AVPixelFormat srcFormat, enum AVPixelFormat dstFormat,
85 int srcW, int srcH, int dstW, int dstH, int flags,
88 const AVPixFmtDescriptor *desc_yuva420p = av_pix_fmt_desc_get(AV_PIX_FMT_YUVA420P);
89 const AVPixFmtDescriptor *desc_src = av_pix_fmt_desc_get(srcFormat);
90 const AVPixFmtDescriptor *desc_dst = av_pix_fmt_desc_get(dstFormat);
91 static enum AVPixelFormat cur_srcFormat;
92 static int cur_srcW, cur_srcH;
93 static uint8_t *src[4];
94 static int srcStride[4];
95 uint8_t *dst[4] = { 0 };
96 uint8_t *out[4] = { 0 };
97 int dstStride[4] = {0};
99 uint64_t ssdY, ssdU = 0, ssdV = 0, ssdA = 0;
100 struct SwsContext *dstContext = NULL, *outContext = NULL;
104 if (cur_srcFormat != srcFormat || cur_srcW != srcW || cur_srcH != srcH) {
105 struct SwsContext *srcContext = NULL;
108 for (p = 0; p < 4; p++)
111 res = av_image_fill_linesizes(srcStride, srcFormat, srcW);
113 fprintf(stderr, "av_image_fill_linesizes failed\n");
116 for (p = 0; p < 4; p++) {
117 srcStride[p] = FFALIGN(srcStride[p], 16);
119 src[p] = av_mallocz(srcStride[p] * srcH + 16);
120 if (srcStride[p] && !src[p]) {
126 srcContext = sws_getContext(w, h, AV_PIX_FMT_YUVA420P, srcW, srcH,
127 srcFormat, SWS_BILINEAR, NULL, NULL, NULL);
129 fprintf(stderr, "Failed to get %s ---> %s\n",
135 sws_scale(srcContext, (const uint8_t * const*)ref, refStride, 0, h, src, srcStride);
136 sws_freeContext(srcContext);
138 cur_srcFormat = srcFormat;
143 res = av_image_fill_linesizes(dstStride, dstFormat, dstW);
145 fprintf(stderr, "av_image_fill_linesizes failed\n");
149 for (i = 0; i < 4; i++) {
150 /* Image buffers passed into libswscale can be allocated any way you
151 * prefer, as long as they're aligned enough for the architecture, and
152 * they're freed appropriately (such as using av_free for buffers
153 * allocated with av_malloc). */
154 /* An extra 16 bytes is being allocated because some scalers may write
156 dstStride[i] = FFALIGN(dstStride[i], 16);
158 dst[i] = av_mallocz(dstStride[i] * dstH + 16);
159 if (dstStride[i] && !dst[i]) {
167 dstContext = sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat,
168 flags, NULL, NULL, NULL);
170 fprintf(stderr, "Failed to get %s ---> %s\n",
171 desc_src->name, desc_dst->name);
176 printf(" %s %dx%d -> %s %3dx%3d flags=%2d",
177 desc_src->name, srcW, srcH,
178 desc_dst->name, dstW, dstH,
182 sws_scale(dstContext, (const uint8_t * const*)src, srcStride, 0, srcH, dst, dstStride);
184 for (i = 0; i < 4 && dstStride[i]; i++)
185 crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), crc, dst[i],
186 dstStride[i] * dstH);
188 if (r && crc == r->crc) {
194 for (i = 0; i < 4; i++) {
195 refStride[i] = FFALIGN(refStride[i], 16);
197 out[i] = av_mallocz(refStride[i] * h);
198 if (refStride[i] && !out[i]) {
204 outContext = sws_getContext(dstW, dstH, dstFormat, w, h,
205 AV_PIX_FMT_YUVA420P, SWS_BILINEAR,
208 fprintf(stderr, "Failed to get %s ---> %s\n",
210 desc_yuva420p->name);
214 sws_scale(outContext, (const uint8_t * const*)dst, dstStride, 0, dstH, out, refStride);
216 ssdY = getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
217 if (hasChroma(srcFormat) && hasChroma(dstFormat)) {
218 //FIXME check that output is really gray
219 ssdU = getSSD(ref[1], out[1], refStride[1], refStride[1],
220 (w + 1) >> 1, (h + 1) >> 1);
221 ssdV = getSSD(ref[2], out[2], refStride[2], refStride[2],
222 (w + 1) >> 1, (h + 1) >> 1);
224 if (isALPHA(srcFormat) && isALPHA(dstFormat))
225 ssdA = getSSD(ref[3], out[3], refStride[3], refStride[3], w, h);
232 sws_freeContext(outContext);
234 for (i = 0; i < 4; i++)
239 printf(" CRC=%08x SSD=%5"PRId64 ",%5"PRId64 ",%5"PRId64 ",%5"PRId64 "\n",
240 crc, ssdY, ssdU, ssdV, ssdA);
243 sws_freeContext(dstContext);
245 for (i = 0; i < 4; i++)
252 static void selfTest(uint8_t *ref[4], int refStride[4], int w, int h,
253 enum AVPixelFormat srcFormat_in,
254 enum AVPixelFormat dstFormat_in)
256 const int flags[] = { SWS_FAST_BILINEAR, SWS_BILINEAR, SWS_BICUBIC,
257 SWS_X, SWS_POINT, SWS_AREA, 0 };
260 const int dstW[] = { srcW - srcW / 3, srcW, srcW + srcW / 3, 0 };
261 const int dstH[] = { srcH - srcH / 3, srcH, srcH + srcH / 3, 0 };
262 enum AVPixelFormat srcFormat, dstFormat;
263 const AVPixFmtDescriptor *desc_src, *desc_dst;
265 for (srcFormat = srcFormat_in != AV_PIX_FMT_NONE ? srcFormat_in : 0;
266 srcFormat < AV_PIX_FMT_NB; srcFormat++) {
267 if (!sws_isSupportedInput(srcFormat) ||
268 !sws_isSupportedOutput(srcFormat))
271 desc_src = av_pix_fmt_desc_get(srcFormat);
273 for (dstFormat = dstFormat_in != AV_PIX_FMT_NONE ? dstFormat_in : 0;
274 dstFormat < AV_PIX_FMT_NB; dstFormat++) {
278 if (!sws_isSupportedInput(dstFormat) ||
279 !sws_isSupportedOutput(dstFormat))
282 desc_dst = av_pix_fmt_desc_get(dstFormat);
284 printf("%s -> %s\n", desc_src->name, desc_dst->name);
287 for (k = 0; flags[k] && !res; k++)
288 for (i = 0; dstW[i] && !res; i++)
289 for (j = 0; dstH[j] && !res; j++)
290 res = doTest(ref, refStride, w, h,
291 srcFormat, dstFormat,
292 srcW, srcH, dstW[i], dstH[j], flags[k],
294 if (dstFormat_in != AV_PIX_FMT_NONE)
297 if (srcFormat_in != AV_PIX_FMT_NONE)
302 static int fileTest(uint8_t *ref[4], int refStride[4], int w, int h, FILE *fp,
303 enum AVPixelFormat srcFormat_in,
304 enum AVPixelFormat dstFormat_in)
308 while (fgets(buf, sizeof(buf), fp)) {
310 enum AVPixelFormat srcFormat;
313 enum AVPixelFormat dstFormat;
320 " %12s %dx%d -> %12s %dx%d flags=%d CRC=%x"
321 " SSD=%"SCNu64 ", %"SCNu64 ", %"SCNu64 ", %"SCNu64 "\n",
322 srcStr, &srcW, &srcH, dstStr, &dstW, &dstH,
323 &flags, &r.crc, &r.ssdY, &r.ssdU, &r.ssdV, &r.ssdA);
325 srcStr[0] = dstStr[0] = 0;
326 ret = sscanf(buf, "%12s -> %12s\n", srcStr, dstStr);
329 srcFormat = av_get_pix_fmt(srcStr);
330 dstFormat = av_get_pix_fmt(dstStr);
332 if (srcFormat == AV_PIX_FMT_NONE || dstFormat == AV_PIX_FMT_NONE ||
333 srcW > 8192U || srcH > 8192U || dstW > 8192U || dstH > 8192U) {
334 fprintf(stderr, "malformed input file\n");
337 if ((srcFormat_in != AV_PIX_FMT_NONE && srcFormat_in != srcFormat) ||
338 (dstFormat_in != AV_PIX_FMT_NONE && dstFormat_in != dstFormat))
345 doTest(ref, refStride, w, h,
346 srcFormat, dstFormat,
347 srcW, srcH, dstW, dstH, flags,
357 int main(int argc, char **argv)
359 enum AVPixelFormat srcFormat = AV_PIX_FMT_NONE;
360 enum AVPixelFormat dstFormat = AV_PIX_FMT_NONE;
361 uint8_t *rgb_data = av_malloc(W * H * 4);
362 const uint8_t * const rgb_src[4] = { rgb_data, NULL, NULL, NULL };
363 int rgb_stride[4] = { 4 * W, 0, 0, 0 };
364 uint8_t *data = av_malloc(4 * W * H);
365 uint8_t *src[4] = { data, data + W * H, data + W * H * 2, data + W * H * 3 };
366 int stride[4] = { W, W, W, W };
368 struct SwsContext *sws;
374 if (!rgb_data || !data)
377 for (i = 1; i < argc; i += 2) {
378 if (argv[i][0] != '-' || i + 1 == argc)
380 if (!strcmp(argv[i], "-ref")) {
381 fp = fopen(argv[i + 1], "r");
383 fprintf(stderr, "could not open '%s'\n", argv[i + 1]);
386 } else if (!strcmp(argv[i], "-cpuflags")) {
387 unsigned flags = av_get_cpu_flags();
388 int ret = av_parse_cpu_caps(&flags, argv[i + 1]);
390 fprintf(stderr, "invalid cpu flags %s\n", argv[i + 1]);
393 av_force_cpu_flags(flags);
394 } else if (!strcmp(argv[i], "-src")) {
395 srcFormat = av_get_pix_fmt(argv[i + 1]);
396 if (srcFormat == AV_PIX_FMT_NONE) {
397 fprintf(stderr, "invalid pixel format %s\n", argv[i + 1]);
400 } else if (!strcmp(argv[i], "-dst")) {
401 dstFormat = av_get_pix_fmt(argv[i + 1]);
402 if (dstFormat == AV_PIX_FMT_NONE) {
403 fprintf(stderr, "invalid pixel format %s\n", argv[i + 1]);
408 fprintf(stderr, "bad option or argument missing (%s)\n", argv[i]);
413 sws = sws_getContext(W / 12, H / 12, AV_PIX_FMT_RGB32, W, H,
414 AV_PIX_FMT_YUVA420P, SWS_BILINEAR, NULL, NULL, NULL);
416 av_lfg_init(&rand, 1);
418 for (y = 0; y < H; y++)
419 for (x = 0; x < W * 4; x++)
420 rgb_data[ x + y * 4 * W] = av_lfg_get(&rand);
421 sws_scale(sws, rgb_src, rgb_stride, 0, H / 12, src, stride);
422 sws_freeContext(sws);
426 res = fileTest(src, stride, W, H, fp, srcFormat, dstFormat);
429 selfTest(src, stride, W, H, srcFormat, dstFormat);