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00021 #include <stdio.h>
00022 #include <stdlib.h>
00023 #include <string.h>
00024 #include <inttypes.h>
00025 #include <stdarg.h>
00026
00027 #undef HAVE_AV_CONFIG_H
00028 #include "libavutil/imgutils.h"
00029 #include "libavutil/mem.h"
00030 #include "libavutil/avutil.h"
00031 #include "libavutil/crc.h"
00032 #include "libavutil/pixdesc.h"
00033 #include "libavutil/lfg.h"
00034 #include "swscale.h"
00035
00036
00037
00038 #define isGray(x) \
00039 ((x) == PIX_FMT_GRAY8 || \
00040 (x) == PIX_FMT_Y400A || \
00041 (x) == PIX_FMT_GRAY16BE || \
00042 (x) == PIX_FMT_GRAY16LE)
00043 #define hasChroma(x) \
00044 (!(isGray(x) || \
00045 (x) == PIX_FMT_MONOBLACK || \
00046 (x) == PIX_FMT_MONOWHITE))
00047 #define isALPHA(x) \
00048 ((x) == PIX_FMT_BGR32 || \
00049 (x) == PIX_FMT_BGR32_1 || \
00050 (x) == PIX_FMT_RGB32 || \
00051 (x) == PIX_FMT_RGB32_1 || \
00052 (x) == PIX_FMT_YUVA420P)
00053
00054 static uint64_t getSSD(uint8_t *src1, uint8_t *src2, int stride1,
00055 int stride2, int w, int h)
00056 {
00057 int x, y;
00058 uint64_t ssd = 0;
00059
00060 for (y = 0; y < h; y++) {
00061 for (x = 0; x < w; x++) {
00062 int d = src1[x + y * stride1] - src2[x + y * stride2];
00063 ssd += d * d;
00064 }
00065 }
00066 return ssd;
00067 }
00068
00069 struct Results {
00070 uint64_t ssdY;
00071 uint64_t ssdU;
00072 uint64_t ssdV;
00073 uint64_t ssdA;
00074 uint32_t crc;
00075 };
00076
00077
00078
00079 static int doTest(uint8_t *ref[4], int refStride[4], int w, int h,
00080 enum PixelFormat srcFormat, enum PixelFormat dstFormat,
00081 int srcW, int srcH, int dstW, int dstH, int flags,
00082 struct Results *r)
00083 {
00084 static enum PixelFormat cur_srcFormat;
00085 static int cur_srcW, cur_srcH;
00086 static uint8_t *src[4];
00087 static int srcStride[4];
00088 uint8_t *dst[4] = { 0 };
00089 uint8_t *out[4] = { 0 };
00090 int dstStride[4];
00091 int i;
00092 uint64_t ssdY, ssdU = 0, ssdV = 0, ssdA = 0;
00093 struct SwsContext *dstContext = NULL, *outContext = NULL;
00094 uint32_t crc = 0;
00095 int res = 0;
00096
00097 if (cur_srcFormat != srcFormat || cur_srcW != srcW || cur_srcH != srcH) {
00098 struct SwsContext *srcContext = NULL;
00099 int p;
00100
00101 for (p = 0; p < 4; p++)
00102 av_freep(&src[p]);
00103
00104 av_image_fill_linesizes(srcStride, srcFormat, srcW);
00105 for (p = 0; p < 4; p++) {
00106 if (srcStride[p])
00107 src[p] = av_mallocz(srcStride[p] * srcH + 16);
00108 if (srcStride[p] && !src[p]) {
00109 perror("Malloc");
00110 res = -1;
00111 goto end;
00112 }
00113 }
00114 srcContext = sws_getContext(w, h, PIX_FMT_YUVA420P, srcW, srcH,
00115 srcFormat, SWS_BILINEAR, NULL, NULL, NULL);
00116 if (!srcContext) {
00117 fprintf(stderr, "Failed to get %s ---> %s\n",
00118 av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name,
00119 av_pix_fmt_descriptors[srcFormat].name);
00120 res = -1;
00121 goto end;
00122 }
00123 sws_scale(srcContext, ref, refStride, 0, h, src, srcStride);
00124 sws_freeContext(srcContext);
00125
00126 cur_srcFormat = srcFormat;
00127 cur_srcW = srcW;
00128 cur_srcH = srcH;
00129 }
00130
00131 av_image_fill_linesizes(dstStride, dstFormat, dstW);
00132 for (i = 0; i < 4; i++) {
00133
00134
00135
00136
00137
00138
00139 if (dstStride[i])
00140 dst[i] = av_mallocz(dstStride[i] * dstH + 16);
00141 if (dstStride[i] && !dst[i]) {
00142 perror("Malloc");
00143 res = -1;
00144
00145 goto end;
00146 }
00147 }
00148
00149 dstContext = sws_getContext(srcW, srcH, srcFormat, dstW, dstH, dstFormat,
00150 flags, NULL, NULL, NULL);
00151 if (!dstContext) {
00152 fprintf(stderr, "Failed to get %s ---> %s\n",
00153 av_pix_fmt_descriptors[srcFormat].name,
00154 av_pix_fmt_descriptors[dstFormat].name);
00155 res = -1;
00156 goto end;
00157 }
00158
00159 printf(" %s %dx%d -> %s %3dx%3d flags=%2d",
00160 av_pix_fmt_descriptors[srcFormat].name, srcW, srcH,
00161 av_pix_fmt_descriptors[dstFormat].name, dstW, dstH,
00162 flags);
00163 fflush(stdout);
00164
00165 sws_scale(dstContext, src, srcStride, 0, srcH, dst, dstStride);
00166
00167 for (i = 0; i < 4 && dstStride[i]; i++)
00168 crc = av_crc(av_crc_get_table(AV_CRC_32_IEEE), crc, dst[i],
00169 dstStride[i] * dstH);
00170
00171 if (r && crc == r->crc) {
00172 ssdY = r->ssdY;
00173 ssdU = r->ssdU;
00174 ssdV = r->ssdV;
00175 ssdA = r->ssdA;
00176 } else {
00177 for (i = 0; i < 4; i++) {
00178 if (refStride[i])
00179 out[i] = av_mallocz(refStride[i] * h);
00180 if (refStride[i] && !out[i]) {
00181 perror("Malloc");
00182 res = -1;
00183 goto end;
00184 }
00185 }
00186 outContext = sws_getContext(dstW, dstH, dstFormat, w, h,
00187 PIX_FMT_YUVA420P, SWS_BILINEAR,
00188 NULL, NULL, NULL);
00189 if (!outContext) {
00190 fprintf(stderr, "Failed to get %s ---> %s\n",
00191 av_pix_fmt_descriptors[dstFormat].name,
00192 av_pix_fmt_descriptors[PIX_FMT_YUVA420P].name);
00193 res = -1;
00194 goto end;
00195 }
00196 sws_scale(outContext, dst, dstStride, 0, dstH, out, refStride);
00197
00198 ssdY = getSSD(ref[0], out[0], refStride[0], refStride[0], w, h);
00199 if (hasChroma(srcFormat) && hasChroma(dstFormat)) {
00200
00201 ssdU = getSSD(ref[1], out[1], refStride[1], refStride[1],
00202 (w + 1) >> 1, (h + 1) >> 1);
00203 ssdV = getSSD(ref[2], out[2], refStride[2], refStride[2],
00204 (w + 1) >> 1, (h + 1) >> 1);
00205 }
00206 if (isALPHA(srcFormat) && isALPHA(dstFormat))
00207 ssdA = getSSD(ref[3], out[3], refStride[3], refStride[3], w, h);
00208
00209 ssdY /= w * h;
00210 ssdU /= w * h / 4;
00211 ssdV /= w * h / 4;
00212 ssdA /= w * h;
00213
00214 sws_freeContext(outContext);
00215
00216 for (i = 0; i < 4; i++)
00217 if (refStride[i])
00218 av_free(out[i]);
00219 }
00220
00221 printf(" CRC=%08x SSD=%5"PRId64 ",%5"PRId64 ",%5"PRId64 ",%5"PRId64 "\n",
00222 crc, ssdY, ssdU, ssdV, ssdA);
00223
00224 end:
00225 sws_freeContext(dstContext);
00226
00227 for (i = 0; i < 4; i++)
00228 if (dstStride[i])
00229 av_free(dst[i]);
00230
00231 return res;
00232 }
00233
00234 static void selfTest(uint8_t *ref[4], int refStride[4], int w, int h,
00235 enum PixelFormat srcFormat_in,
00236 enum PixelFormat dstFormat_in)
00237 {
00238 const int flags[] = { SWS_FAST_BILINEAR, SWS_BILINEAR, SWS_BICUBIC,
00239 SWS_X, SWS_POINT, SWS_AREA, 0 };
00240 const int srcW = w;
00241 const int srcH = h;
00242 const int dstW[] = { srcW - srcW / 3, srcW, srcW + srcW / 3, 0 };
00243 const int dstH[] = { srcH - srcH / 3, srcH, srcH + srcH / 3, 0 };
00244 enum PixelFormat srcFormat, dstFormat;
00245
00246 for (srcFormat = srcFormat_in != PIX_FMT_NONE ? srcFormat_in : 0;
00247 srcFormat < PIX_FMT_NB; srcFormat++) {
00248 if (!sws_isSupportedInput(srcFormat) ||
00249 !sws_isSupportedOutput(srcFormat))
00250 continue;
00251
00252 for (dstFormat = dstFormat_in != PIX_FMT_NONE ? dstFormat_in : 0;
00253 dstFormat < PIX_FMT_NB; dstFormat++) {
00254 int i, j, k;
00255 int res = 0;
00256
00257 if (!sws_isSupportedInput(dstFormat) ||
00258 !sws_isSupportedOutput(dstFormat))
00259 continue;
00260
00261 printf("%s -> %s\n",
00262 av_pix_fmt_descriptors[srcFormat].name,
00263 av_pix_fmt_descriptors[dstFormat].name);
00264 fflush(stdout);
00265
00266 for (k = 0; flags[k] && !res; k++)
00267 for (i = 0; dstW[i] && !res; i++)
00268 for (j = 0; dstH[j] && !res; j++)
00269 res = doTest(ref, refStride, w, h,
00270 srcFormat, dstFormat,
00271 srcW, srcH, dstW[i], dstH[j], flags[k],
00272 NULL);
00273 if (dstFormat_in != PIX_FMT_NONE)
00274 break;
00275 }
00276 if (srcFormat_in != PIX_FMT_NONE)
00277 break;
00278 }
00279 }
00280
00281 static int fileTest(uint8_t *ref[4], int refStride[4], int w, int h, FILE *fp,
00282 enum PixelFormat srcFormat_in,
00283 enum PixelFormat dstFormat_in)
00284 {
00285 char buf[256];
00286
00287 while (fgets(buf, sizeof(buf), fp)) {
00288 struct Results r;
00289 enum PixelFormat srcFormat;
00290 char srcStr[12];
00291 int srcW, srcH;
00292 enum PixelFormat dstFormat;
00293 char dstStr[12];
00294 int dstW, dstH;
00295 int flags;
00296 int ret;
00297
00298 ret = sscanf(buf,
00299 " %12s %dx%d -> %12s %dx%d flags=%d CRC=%x"
00300 " SSD=%"PRId64 ", %"PRId64 ", %"PRId64 ", %"PRId64 "\n",
00301 srcStr, &srcW, &srcH, dstStr, &dstW, &dstH,
00302 &flags, &r.crc, &r.ssdY, &r.ssdU, &r.ssdV, &r.ssdA);
00303 if (ret != 12) {
00304 srcStr[0] = dstStr[0] = 0;
00305 ret = sscanf(buf, "%12s -> %12s\n", srcStr, dstStr);
00306 }
00307
00308 srcFormat = av_get_pix_fmt(srcStr);
00309 dstFormat = av_get_pix_fmt(dstStr);
00310
00311 if (srcFormat == PIX_FMT_NONE || dstFormat == PIX_FMT_NONE) {
00312 fprintf(stderr, "malformed input file\n");
00313 return -1;
00314 }
00315 if ((srcFormat_in != PIX_FMT_NONE && srcFormat_in != srcFormat) ||
00316 (dstFormat_in != PIX_FMT_NONE && dstFormat_in != dstFormat))
00317 continue;
00318 if (ret != 12) {
00319 printf("%s", buf);
00320 continue;
00321 }
00322
00323 doTest(ref, refStride, w, h,
00324 srcFormat, dstFormat,
00325 srcW, srcH, dstW, dstH, flags,
00326 &r);
00327 }
00328
00329 return 0;
00330 }
00331
00332 #define W 96
00333 #define H 96
00334
00335 int main(int argc, char **argv)
00336 {
00337 enum PixelFormat srcFormat = PIX_FMT_NONE;
00338 enum PixelFormat dstFormat = PIX_FMT_NONE;
00339 uint8_t *rgb_data = av_malloc(W * H * 4);
00340 uint8_t *rgb_src[4] = { rgb_data, NULL, NULL, NULL };
00341 int rgb_stride[4] = { 4 * W, 0, 0, 0 };
00342 uint8_t *data = av_malloc(4 * W * H);
00343 uint8_t *src[4] = { data, data + W * H, data + W * H * 2, data + W * H * 3 };
00344 int stride[4] = { W, W, W, W };
00345 int x, y;
00346 struct SwsContext *sws;
00347 AVLFG rand;
00348 int res = -1;
00349 int i;
00350
00351 if (!rgb_data || !data)
00352 return -1;
00353
00354 sws = sws_getContext(W / 12, H / 12, PIX_FMT_RGB32, W, H,
00355 PIX_FMT_YUVA420P, SWS_BILINEAR, NULL, NULL, NULL);
00356
00357 av_lfg_init(&rand, 1);
00358
00359 for (y = 0; y < H; y++)
00360 for (x = 0; x < W * 4; x++)
00361 rgb_data[ x + y * 4 * W] = av_lfg_get(&rand);
00362 sws_scale(sws, rgb_src, rgb_stride, 0, H, src, stride);
00363 sws_freeContext(sws);
00364 av_free(rgb_data);
00365
00366 for (i = 1; i < argc; i += 2) {
00367 if (argv[i][0] != '-' || i + 1 == argc)
00368 goto bad_option;
00369 if (!strcmp(argv[i], "-ref")) {
00370 FILE *fp = fopen(argv[i + 1], "r");
00371 if (!fp) {
00372 fprintf(stderr, "could not open '%s'\n", argv[i + 1]);
00373 goto error;
00374 }
00375 res = fileTest(src, stride, W, H, fp, srcFormat, dstFormat);
00376 fclose(fp);
00377 goto end;
00378 } else if (!strcmp(argv[i], "-src")) {
00379 srcFormat = av_get_pix_fmt(argv[i + 1]);
00380 if (srcFormat == PIX_FMT_NONE) {
00381 fprintf(stderr, "invalid pixel format %s\n", argv[i + 1]);
00382 return -1;
00383 }
00384 } else if (!strcmp(argv[i], "-dst")) {
00385 dstFormat = av_get_pix_fmt(argv[i + 1]);
00386 if (dstFormat == PIX_FMT_NONE) {
00387 fprintf(stderr, "invalid pixel format %s\n", argv[i + 1]);
00388 return -1;
00389 }
00390 } else {
00391 bad_option:
00392 fprintf(stderr, "bad option or argument missing (%s)\n", argv[i]);
00393 goto error;
00394 }
00395 }
00396
00397 selfTest(src, stride, W, H, srcFormat, dstFormat);
00398 end:
00399 res = 0;
00400 error:
00401 av_free(data);
00402
00403 return res;
00404 }