int main(int argc, char *argv[]) { uint64_t i, j; uint64_t sse = 0; double sse_d = 0.0; FILE *f[2]; uint8_t buf[2][SIZE]; int len = 1; int64_t max; int shift = argc < 5 ? 0 : atoi(argv[4]); int skip_bytes = argc < 6 ? 0 : atoi(argv[5]); uint64_t size0 = 0; uint64_t size1 = 0; uint64_t maxdist = 0; double maxdist_d = 0.0; if (argc < 3) { printf("tiny_psnr <file1> <file2> [<elem size> [<shift> [<skip bytes>]]]\n"); printf("WAV headers are skipped automatically.\n"); return 1; } if (argc > 3) { if (!strcmp(argv[3], "u8")) { len = 1; } else if (!strcmp(argv[3], "s16")) { len = 2; } else if (!strcmp(argv[3], "f32")) { len = 4; } else if (!strcmp(argv[3], "f64")) { len = 8; } else { char *end; len = strtol(argv[3], &end, 0); if (*end || len < 1 || len > 2) { fprintf(stderr, "Unsupported sample format: %s\n", argv[3]); return 1; } } } max = (1LL << (8 * len)) - 1; f[0] = fopen(argv[1], "rb"); f[1] = fopen(argv[2], "rb"); if (!f[0] || !f[1]) { fprintf(stderr, "Could not open input files.\n"); return 1; } for (i = 0; i < 2; i++) { uint8_t *p = buf[i]; if (fread(p, 1, 12, f[i]) != 12) return 1; if (!memcmp(p, "RIFF", 4) && !memcmp(p + 8, "WAVE", 4)) { if (fread(p, 1, 8, f[i]) != 8) return 1; while (memcmp(p, "data", 4)) { int s = p[4] | p[5] << 8 | p[6] << 16 | p[7] << 24; fseek(f[i], s, SEEK_CUR); if (fread(p, 1, 8, f[i]) != 8) return 1; } } else { fseek(f[i], -12, SEEK_CUR); } } fseek(f[shift < 0], abs(shift), SEEK_CUR); fseek(f[0], skip_bytes, SEEK_CUR); fseek(f[1], skip_bytes, SEEK_CUR); for (;;) { int s0 = fread(buf[0], 1, SIZE, f[0]); int s1 = fread(buf[1], 1, SIZE, f[1]); for (j = 0; j < FFMIN(s0, s1); j += len) { switch (len) { case 1: case 2: { int64_t a = buf[0][j]; int64_t b = buf[1][j]; int dist; if (len == 2) { a = get_s16l(buf[0] + j); b = get_s16l(buf[1] + j); } else { a = buf[0][j]; b = buf[1][j]; } sse += (a - b) * (a - b); dist = llabs(a - b); if (dist > maxdist) maxdist = dist; break; } case 4: case 8: { double dist, a, b; if (len == 8) { a = get_f64l(buf[0] + j); b = get_f64l(buf[1] + j); } else { a = get_f32l(buf[0] + j); b = get_f32l(buf[1] + j); } dist = fabs(a - b); sse_d += (a - b) * (a - b); if (dist > maxdist_d) maxdist_d = dist; break; } } } size0 += s0; size1 += s1; if (s0 + s1 <= 0) break; } i = FFMIN(size0, size1) / len; if (!i) i = 1; switch (len) { case 1: case 2: { uint64_t psnr; uint64_t dev = int_sqrt(((sse / i) * F * F) + (((sse % i) * F * F) + i / 2) / i); if (sse) psnr = ((2 * log16(max << 16) + log16(i) - log16(sse)) * 284619LL * F + (1LL << 31)) / (1LL << 32); else psnr = 1000 * F - 1; // floating point free infinity :) printf("stddev:%5d.%02d PSNR:%3d.%02d MAXDIFF:%5"PRIu64" bytes:%9"PRIu64"/%9"PRIu64"\n", (int)(dev / F), (int)(dev % F), (int)(psnr / F), (int)(psnr % F), maxdist, size0, size1); break; } case 4: case 8: { char psnr_str[64]; double dev = sqrt(sse_d / i); uint64_t scale = (len == 4) ? (1ULL << 24) : (1ULL << 32); if (sse_d) { double psnr = 2 * log(DBL_MAX) - log(i / sse_d); snprintf(psnr_str, sizeof(psnr_str), "%5.02f", psnr); } else snprintf(psnr_str, sizeof(psnr_str), "inf"); maxdist = maxdist_d * scale; printf("stddev:%10.2f PSNR:%s MAXDIFF:%10"PRIu64" bytes:%9"PRIu64"/%9"PRIu64"\n", dev * scale, psnr_str, maxdist, size0, size1); break; } } return 0; }
static int run_psnr(FILE *f[2], int len, int shift, int skip_bytes) { int i, j; uint64_t sse = 0; double sse_d = 0.0; uint8_t buf[2][SIZE]; int64_t max = (1LL << (8 * len)) - 1; int size0 = 0; int size1 = 0; uint64_t maxdist = 0; double maxdist_d = 0.0; int noseek; noseek = fseek(f[0], 0, SEEK_SET) || fseek(f[1], 0, SEEK_SET); if (!noseek) { for (i = 0; i < 2; i++) { uint8_t *p = buf[i]; if (fread(p, 1, 12, f[i]) != 12) return -1; if (!memcmp(p, "RIFF", 4) && !memcmp(p + 8, "WAVE", 4)) { if (fread(p, 1, 8, f[i]) != 8) return -1; while (memcmp(p, "data", 4)) { int s = p[4] | p[5] << 8 | p[6] << 16 | p[7] << 24; fseek(f[i], s, SEEK_CUR); if (fread(p, 1, 8, f[i]) != 8) return -1; } } else { fseek(f[i], -12, SEEK_CUR); } } fseek(f[shift < 0], abs(shift), SEEK_CUR); fseek(f[0], skip_bytes, SEEK_CUR); fseek(f[1], skip_bytes, SEEK_CUR); } for (;;) { int s0 = fread(buf[0], 1, SIZE, f[0]); int s1 = fread(buf[1], 1, SIZE, f[1]); for (j = 0; j < FFMIN(s0, s1); j += len) { switch (len) { case 1: case 2: { int64_t a, b; int dist; if (len == 2) { a = get_s16l(buf[0] + j); b = get_s16l(buf[1] + j); } else { a = buf[0][j]; b = buf[1][j]; } sse += (a - b) * (a - b); dist = llabs(a - b); if (dist > maxdist) maxdist = dist; break; } case 4: case 8: { double dist, a, b; if (len == 8) { a = get_f64l(buf[0] + j); b = get_f64l(buf[1] + j); } else { a = get_f32l(buf[0] + j); b = get_f32l(buf[1] + j); } dist = fabs(a - b); sse_d += (a - b) * (a - b); if (dist > maxdist_d) maxdist_d = dist; break; } } } size0 += s0; size1 += s1; if (s0 + s1 <= 0) break; } i = FFMIN(size0, size1) / len; if (!i) i = 1; switch (len) { case 1: case 2: { uint64_t psnr; uint64_t dev = int_sqrt(((sse / i) * F * F) + (((sse % i) * F * F) + i / 2) / i); if (sse) psnr = ((2 * log16(max << 16) + log16(i) - log16(sse)) * 284619LL * F + (1LL << 31)) / (1LL << 32); else psnr = 1000 * F - 1; // floating point free infinity :) printf("stddev:%5d.%02d PSNR:%3d.%02d MAXDIFF:%5"PRIu64" bytes:%9d/%9d\n", (int)(dev / F), (int)(dev % F), (int)(psnr / F), (int)(psnr % F), maxdist, size0, size1); return psnr; } case 4: case 8: { char psnr_str[64]; double psnr = INT_MAX; double dev = sqrt(sse_d / i); uint64_t scale = (len == 4) ? (1ULL << 24) : (1ULL << 32); if (sse_d) { psnr = 2 * log(DBL_MAX) - log(i / sse_d); snprintf(psnr_str, sizeof(psnr_str), "%5.02f", psnr); } else snprintf(psnr_str, sizeof(psnr_str), "inf"); maxdist = maxdist_d * scale; printf("stddev:%10.2f PSNR:%s MAXDIFF:%10"PRIu64" bytes:%9d/%9d\n", dev * scale, psnr_str, maxdist, size0, size1); return psnr; } } return -1; }
static int run_psnr(FILE *f[2], int len, int shift, int skip_bytes) { int i, j; uint64_t sse = 0; double sse_d = 0.0; uint8_t buf[2][SIZE]; int64_t max = (1LL << (8 * len)) - 1; int size0 = 0; int size1 = 0; uint64_t maxdist = 0; double maxdist_d = 0.0; int noseek; noseek = fseek(f[0], 0, SEEK_SET) || fseek(f[1], 0, SEEK_SET); if (!noseek) { for (i = 0; i < 2; i++) { uint8_t *p = buf[i]; if (fread(p, 1, 12, f[i]) != 12) return 1; if (!memcmp(p, "RIFF", 4) && !memcmp(p + 8, "WAVE", 4)) { if (fread(p, 1, 8, f[i]) != 8) return 1; while (memcmp(p, "data", 4)) { int s = p[4] | p[5] << 8 | p[6] << 16 | p[7] << 24; fseek(f[i], s, SEEK_CUR); if (fread(p, 1, 8, f[i]) != 8) return 1; } } else { fseek(f[i], -12, SEEK_CUR); } } fseek(f[shift < 0], abs(shift), SEEK_CUR); fseek(f[0], skip_bytes, SEEK_CUR); fseek(f[1], skip_bytes, SEEK_CUR); } fflush(stdout); for (;;) { int s0 = fread(buf[0], 1, SIZE, f[0]); int s1 = fread(buf[1], 1, SIZE, f[1]); int tempsize = FFMIN(s0,s1); DECLARE_ALIGNED(32, FFTComplex, fftcomplexa)[SIZE/len]; DECLARE_ALIGNED(32, FFTComplex, fftcomplexb)[SIZE/len]; for (j = 0; j < tempsize; j += len) { switch (len) { case 1: case 2: { int64_t a = buf[0][j]; int64_t b = buf[1][j]; int dist; if (len == 2) { fftcomplexa[j/len].re = get_s16l(buf[0] + j); fftcomplexb[j/len].re = get_s16l(buf[1] + j); fftcomplexa[j/len].im = 0; fftcomplexb[j/len].im = 0; } else { fftcomplexa[j/len].re = buf[0][j]; fftcomplexb[j/len].re = buf[1][j]; fftcomplexa[j/len].im = 0; fftcomplexb[j/len].im = 0; } dist = abs(fftcomplexa[j/len].re-fftcomplexb[j/len].re); if (dist > maxdist) maxdist = dist; break; break; } case 4: case 8: { double dist, a, b; if (len == 8) { fftcomplexa[j/len].re = (float) get_f64l(buf[0] + j); fftcomplexb[j/len].re = (float) get_f64l(buf[1] + j); fftcomplexa[j/len].im = 0; fftcomplexb[j/len].im = 0; } else { fftcomplexa[j/len].re = (float) get_f32l(buf[0] + j); fftcomplexb[j/len].re = (float) get_f32l(buf[1] + j); fftcomplexa[j/len].im = 0; fftcomplexb[j/len].im = 0; } dist = abs(fftcomplexa[j/len].re-fftcomplexb[j/len].re); if (dist > maxdist_d) maxdist_d = dist; break; } } } for(;j<SIZE;j+=len){ fftcomplexa[j/len].re = 0; fftcomplexb[j/len].re = 0; fftcomplexa[j/len].im = 0; fftcomplexb[j/len].im = 0; } size0 += s0; size1 += s1; if (s0 + s1 <= 0) break; FFTContext* fftcontexta = av_fft_init(floor(log2(SIZE/len)),0); av_fft_permute (fftcontexta, fftcomplexa); int temp = 0; av_fft_calc (fftcontexta, fftcomplexa); FFTContext* fftcontextb = av_fft_init(floor(log2(SIZE/len)),0); av_fft_permute (fftcontextb, fftcomplexb); av_fft_calc (fftcontextb, fftcomplexb); float* maskingfunc = get_mask_array(SIZE/len); float* mask = get_mask(fftcomplexa, SIZE/len, maskingfunc); double psysse = get_psy_sse(fftcomplexa,fftcomplexb, mask, SIZE/len); free(maskingfunc); free(mask); sse+=psysse; sse_d+=psysse; } fflush(stdout); i = FFMIN(size0, size1) / len; if (!i) i = 1; switch (len) { case 1: case 2: { uint64_t psnr; uint64_t dev = int_sqrt(((sse / i) * F * F) + (((sse % i) * F * F) + i / 2) / i); if (sse) psnr = ((2 * log16(max << 16) + log16(i) - log16(sse)) * 284619LL * F + (1LL << 31)) / (1LL << 32); else psnr = 1000 * F - 1; // floating point free infinity :) printf("stddev:%5d.%02d PSYSNR:%3d.%02d MAXDIFF:%5"PRIu64" bytes:%9d/%9d\n", (int)(dev / F), (int)(dev % F), (int)(psnr / F), (int)(psnr % F), maxdist, size0, size1); return psnr; } case 4: case 8: { char psnr_str[64]; double psnr = INT_MAX; double dev = sqrt(sse_d / i); uint64_t scale = (len == 4) ? (1ULL << 24) : (1ULL << 32); if (sse_d) { psnr = 2 * log(DBL_MAX) - log(i / sse_d); snprintf(psnr_str, sizeof(psnr_str), "%5.02f", psnr); } else snprintf(psnr_str, sizeof(psnr_str), "inf"); maxdist = maxdist_d * scale; printf("stddev:%10.2f PSYSNR:%s MAXDIFF:%10"PRIu64" bytes:%9d/%9d\n", dev * scale, psnr_str, maxdist, size0, size1); return psnr; } } return -1; }