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https://github.com/FFmpeg/FFmpeg.git
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2b541b8c1d
Most users only want to either read or write golomb codes, not both. By splitting these headers one avoids having unnecesssary (get|put)_hits.h inclusions. Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>
120 lines
3.2 KiB
C
120 lines
3.2 KiB
C
/*
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* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include <stdio.h>
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#include "libavutil/internal.h"
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#include "libavutil/mem.h"
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#include "libavcodec/get_bits.h"
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#include "libavcodec/golomb.h"
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#include "libavcodec/put_bits.h"
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#include "libavcodec/put_golomb.h"
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#define COUNT 8191
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#define SIZE (COUNT * 4)
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int main(void)
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{
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int i, ret = 0;
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uint8_t *temp;
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PutBitContext pb;
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GetBitContext gb;
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temp = av_malloc(SIZE);
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if (!temp)
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return 2;
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init_put_bits(&pb, temp, SIZE);
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for (i = 0; i < COUNT; i++)
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set_ue_golomb(&pb, i);
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flush_put_bits(&pb);
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init_get_bits(&gb, temp, 8 * SIZE);
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for (i = 0; i < COUNT; i++) {
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int j, s = show_bits(&gb, 25);
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j = get_ue_golomb(&gb);
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if (j != i) {
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fprintf(stderr, "get_ue_golomb: expected %d, got %d. bits: %7x\n",
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i, j, s);
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ret = 1;
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}
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}
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#define EXTEND(i) ((i) << 3 | (i) & 7)
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init_put_bits(&pb, temp, SIZE);
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for (i = 0; i < COUNT; i++)
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set_ue_golomb(&pb, EXTEND(i));
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flush_put_bits(&pb);
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init_get_bits(&gb, temp, 8 * SIZE);
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for (i = 0; i < COUNT; i++) {
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int j, s = show_bits_long(&gb, 32);
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j = get_ue_golomb_long(&gb);
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if (j != EXTEND(i)) {
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fprintf(stderr, "get_ue_golomb_long: expected %d, got %d. "
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"bits: %8x\n", EXTEND(i), j, s);
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ret = 1;
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}
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}
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#define EXTEND_L(i) ((i) << 4 | (i) & 15)
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init_put_bits(&pb, temp, SIZE);
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for (i = 0; i < COUNT; i++)
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set_ue_golomb_long(&pb, EXTEND_L(i));
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flush_put_bits(&pb);
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init_get_bits(&gb, temp, 8 * SIZE);
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for (i = 0; i < COUNT; i++) {
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int j, s = show_bits_long(&gb, 32);
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j = get_ue_golomb_long(&gb);
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if (j != EXTEND_L(i)) {
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fprintf(stderr, "get_ue_golomb_long: expected %d, got %d. "
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"bits: %8x\n", EXTEND_L(i), j, s);
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ret = 1;
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}
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}
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init_put_bits(&pb, temp, SIZE);
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for (i = 0; i < COUNT; i++)
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set_se_golomb(&pb, i - COUNT / 2);
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flush_put_bits(&pb);
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init_get_bits(&gb, temp, 8 * SIZE);
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for (i = 0; i < COUNT; i++) {
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int j, s = show_bits(&gb, 25);
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j = get_se_golomb(&gb);
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if (j != i - COUNT / 2) {
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fprintf(stderr, "get_se_golomb: expected %d, got %d. bits: %7x\n",
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i - COUNT / 2, j, s);
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ret = 1;
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}
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}
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av_free(temp);
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return ret;
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}
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