diff options
Diffstat (limited to 'libavcodec/dct-test.c')
| -rw-r--r-- | libavcodec/dct-test.c | 50 |
1 files changed, 36 insertions, 14 deletions
diff --git a/libavcodec/dct-test.c b/libavcodec/dct-test.c index d0fe34e1d7..2abb05bd3b 100644 --- a/libavcodec/dct-test.c +++ b/libavcodec/dct-test.c @@ -2,20 +2,20 @@ * (c) 2001 Fabrice Bellard * 2007 Marc Hoffman <marc.hoffman@analog.com> * - * This file is part of Libav. + * This file is part of FFmpeg. * - * Libav is free software; you can redistribute it and/or + * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * - * Libav is distributed in the hope that it will be useful, + * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with Libav; if not, write to the Free Software + * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ @@ -195,7 +195,7 @@ static inline void mmx_emms(void) static void dct_error(const char *name, int is_idct, void (*fdct_func)(DCTELEM *block), - void (*fdct_ref)(DCTELEM *block), int form, int test) + void (*fdct_ref)(DCTELEM *block), int form, int test, const int bits) { int it, i, scale; int err_inf, v; @@ -204,6 +204,7 @@ static void dct_error(const char *name, int is_idct, int maxout=0; int blockSumErrMax=0, blockSumErr; AVLFG prng; + const int vals=1<<bits; av_lfg_init(&prng, 1); @@ -216,7 +217,7 @@ static void dct_error(const char *name, int is_idct, switch(test){ case 0: for(i=0;i<64;i++) - block1[i] = (av_lfg_get(&prng) % 512) -256; + block1[i] = (av_lfg_get(&prng) % (2*vals)) -vals; if (is_idct){ ff_ref_fdct(block1); @@ -227,10 +228,10 @@ static void dct_error(const char *name, int is_idct, case 1:{ int num = av_lfg_get(&prng) % 10 + 1; for(i=0;i<num;i++) - block1[av_lfg_get(&prng) % 64] = av_lfg_get(&prng) % 512 -256; + block1[av_lfg_get(&prng) % 64] = av_lfg_get(&prng) % (2*vals) -vals; }break; case 2: - block1[0] = av_lfg_get(&prng) % 4096 - 2048; + block1[0] = av_lfg_get(&prng) % (16*vals) - (8*vals); block1[63]= (block1[0]&1)^1; break; } @@ -328,7 +329,7 @@ static void dct_error(const char *name, int is_idct, switch(test){ case 0: for(i=0;i<64;i++) - block1[i] = av_lfg_get(&prng) % 512 -256; + block1[i] = av_lfg_get(&prng) % (2*vals) -vals; if (is_idct){ ff_ref_fdct(block1); @@ -338,10 +339,10 @@ static void dct_error(const char *name, int is_idct, break; case 1:{ case 2: - block1[0] = av_lfg_get(&prng) % 512 -256; - block1[1] = av_lfg_get(&prng) % 512 -256; - block1[2] = av_lfg_get(&prng) % 512 -256; - block1[3] = av_lfg_get(&prng) % 512 -256; + block1[0] = av_lfg_get(&prng) % (2*vals) -vals; + block1[1] = av_lfg_get(&prng) % (2*vals) -vals; + block1[2] = av_lfg_get(&prng) % (2*vals) -vals; + block1[3] = av_lfg_get(&prng) % (2*vals) -vals; }break; } @@ -493,6 +494,25 @@ static void idct248_error(const char *name, if (v > err_max) err_max = v; } +#if 0 + printf("ref=\n"); + for(i=0;i<8;i++) { + int j; + for(j=0;j<8;j++) { + printf(" %3d", img_dest1[i*8+j]); + } + printf("\n"); + } + + printf("out=\n"); + for(i=0;i<8;i++) { + int j; + for(j=0;j<8;j++) { + printf(" %3d", img_dest[i*8+j]); + } + printf("\n"); + } +#endif } printf("%s %s: err_inf=%d\n", 1 ? "IDCT248" : "DCT248", @@ -533,6 +553,7 @@ int main(int argc, char **argv) int test_idct = 0, test_248_dct = 0; int c,i; int test=1; + int bits=8; cpu_flags = av_get_cpu_flags(); ff_ref_dct_init(); @@ -563,6 +584,7 @@ int main(int argc, char **argv) } if(optind <argc) test= atoi(argv[optind]); + if(optind+1 < argc) bits= atoi(argv[optind+1]); printf("ffmpeg DCT/IDCT test\n"); @@ -571,7 +593,7 @@ int main(int argc, char **argv) } else { for (i=0;algos[i].name;i++) if (algos[i].is_idct == test_idct && !(~cpu_flags & algos[i].mm_support)) { - dct_error (algos[i].name, algos[i].is_idct, algos[i].func, algos[i].ref, algos[i].format, test); + dct_error (algos[i].name, algos[i].is_idct, algos[i].func, algos[i].ref, algos[i].format, test, bits); } } return 0; |