diff options
Diffstat (limited to 'libavcodec/golomb-test.c')
-rw-r--r-- | libavcodec/golomb-test.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/libavcodec/golomb-test.c b/libavcodec/golomb-test.c new file mode 100644 index 0000000000..e3c89b1587 --- /dev/null +++ b/libavcodec/golomb-test.c @@ -0,0 +1,73 @@ +/* + * This file is part of Libav. + * + * Libav 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, + * 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 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +#include <stdint.h> +#include <stdio.h> + +#include "avcodec.h" +#include "dsputil.h" +#include "get_bits.h" +#include "golomb.h" +#include "put_bits.h" + +#undef printf +#define COUNT 8000 +#define SIZE (COUNT*40) + +int main(void){ + int i; + uint8_t temp[SIZE]; + PutBitContext pb; + GetBitContext gb; + + init_put_bits(&pb, temp, SIZE); + printf("testing unsigned exp golomb\n"); + for(i=0; i<COUNT; i++){ + set_ue_golomb(&pb, i); + } + flush_put_bits(&pb); + + init_get_bits(&gb, temp, 8*SIZE); + for(i=0; i<COUNT; i++){ + int j, s = show_bits(&gb, 24); + + j= get_ue_golomb(&gb); + if(j != i){ + printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s); + } + } + + init_put_bits(&pb, temp, SIZE); + printf("testing signed exp golomb\n"); + for(i=0; i<COUNT; i++){ + set_se_golomb(&pb, i - COUNT/2); + } + flush_put_bits(&pb); + + init_get_bits(&gb, temp, 8*SIZE); + for(i=0; i<COUNT; i++){ + int j, s = show_bits(&gb, 24); + + j= get_se_golomb(&gb); + if(j != i - COUNT/2){ + printf("mismatch! at %d (%d should be %d) bits:%6X\n", i, j, i, s); + } + } + + return 0; +} |