GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/tests/golomb.c Lines: 42 53 79.2 %
Date: 2020-09-25 23:16:12 Branches: 21 26 80.8 %

Line Branch Exec Source
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/*
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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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#define COUNT 8191
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#define SIZE (COUNT * 4)
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1
int main(void)
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{
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1
    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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1
    temp = av_malloc(SIZE);
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1
    if (!temp)
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        return 2;
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1
    init_put_bits(&pb, temp, SIZE);
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8192
    for (i = 0; i < COUNT; i++)
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8191
        set_ue_golomb(&pb, i);
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1
    flush_put_bits(&pb);
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1
    init_get_bits(&gb, temp, 8 * SIZE);
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8192
    for (i = 0; i < COUNT; i++) {
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8191
        int j, s = show_bits(&gb, 25);
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8191
        j = get_ue_golomb(&gb);
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8191
        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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1
    init_put_bits(&pb, temp, SIZE);
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8192
    for (i = 0; i < COUNT; i++)
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8191
        set_ue_golomb(&pb, EXTEND(i));
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1
    flush_put_bits(&pb);
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1
    init_get_bits(&gb, temp, 8 * SIZE);
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8192
    for (i = 0; i < COUNT; i++) {
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8191
        int j, s = show_bits_long(&gb, 32);
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8191
        j = get_ue_golomb_long(&gb);
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8191
        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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1
    init_put_bits(&pb, temp, SIZE);
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8192
    for (i = 0; i < COUNT; i++)
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8191
        set_ue_golomb_long(&pb, EXTEND_L(i));
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1
    flush_put_bits(&pb);
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1
    init_get_bits(&gb, temp, 8 * SIZE);
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8192
    for (i = 0; i < COUNT; i++) {
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8191
        int j, s = show_bits_long(&gb, 32);
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8191
        j = get_ue_golomb_long(&gb);
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8191
        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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1
    init_put_bits(&pb, temp, SIZE);
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8192
    for (i = 0; i < COUNT; i++)
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8191
        set_se_golomb(&pb, i - COUNT / 2);
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1
    flush_put_bits(&pb);
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1
    init_get_bits(&gb, temp, 8 * SIZE);
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8192
    for (i = 0; i < COUNT; i++) {
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8191
        int j, s = show_bits(&gb, 25);
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8191
        j = get_se_golomb(&gb);
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8191
        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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1
    av_free(temp);
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1
    return ret;
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}