Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Octocat-spinner-32-eaf2f5

Cannot retrieve contributors at this time

file 101 lines (83 sloc) 2.655 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100
/*
* Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of FFmpeg.
*
* 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.
*
* 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 FFmpeg; 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 "libavutil/mem.h"

#include "get_bits.h"
#include "golomb.h"
#include "put_bits.h"

#undef fprintf
#define COUNT 8191
#define SIZE (COUNT * 4)

int main(void)
{
    int i, ret = 0;
    uint8_t *temp;
    PutBitContext pb;
    GetBitContext gb;

    temp = av_malloc(SIZE);
    if (!temp)
        return 2;

    init_put_bits(&pb, temp, SIZE);
    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, 25);

        j = get_ue_golomb(&gb);
        if (j != i) {
            fprintf(stderr, "get_ue_golomb: expected %d, got %d. bits: %7x\n",
                    i, j, s);
            ret = 1;
        }
    }

#define EXTEND(i) (i << 3 | i & 7)
    init_put_bits(&pb, temp, SIZE);
    for (i = 0; i < COUNT; i++)
        set_ue_golomb(&pb, EXTEND(i));
    flush_put_bits(&pb);

    init_get_bits(&gb, temp, 8 * SIZE);
    for (i = 0; i < COUNT; i++) {
        int j, s = show_bits_long(&gb, 32);

        j = get_ue_golomb_long(&gb);
        if (j != EXTEND(i)) {
            fprintf(stderr, "get_ue_golomb_long: expected %d, got %d. "
                    "bits: %8x\n", EXTEND(i), j, s);
            ret = 1;
        }
    }

    init_put_bits(&pb, temp, SIZE);
    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, 25);

        j = get_se_golomb(&gb);
        if (j != i - COUNT / 2) {
            fprintf(stderr, "get_se_golomb: expected %d, got %d. bits: %7x\n",
                    i - COUNT / 2, j, s);
            ret = 1;
        }
    }

    av_free(temp);

    return ret;
}
Something went wrong with that request. Please try again.