GCC Code Coverage Report
Directory: ../../../ffmpeg/ Exec Total Coverage
File: src/libavcodec/vp9_parser.c Lines: 20 21 95.2 %
Date: 2020-08-14 10:39:37 Branches: 10 12 83.3 %

Line Branch Exec Source
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/*
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 * VP9 compatible video decoder
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 *
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 * Copyright (C) 2013 Ronald S. Bultje <rsbultje gmail com>
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 * Copyright (C) 2013 Clément Bœsch <u pkh me>
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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 "libavutil/intreadwrite.h"
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#include "libavcodec/get_bits.h"
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#include "parser.h"
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static int parse(AVCodecParserContext *ctx,
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                 AVCodecContext *avctx,
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                 const uint8_t **out_data, int *out_size,
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                 const uint8_t *data, int size)
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{
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    GetBitContext gb;
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    int res, profile, keyframe;
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    *out_data = data;
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    *out_size = size;
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    if (!size || (res = init_get_bits8(&gb, data, size)) < 0)
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        return size; // parsers can't return errors
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2226
    get_bits(&gb, 2); // frame marker
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2226
    profile  = get_bits1(&gb);
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    profile |= get_bits1(&gb) << 1;
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    if (profile == 3) profile += get_bits1(&gb);
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    if (profile > 3)
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        return size;
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    avctx->profile = profile;
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    if (get_bits1(&gb)) {
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        keyframe = 0;
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    } else {
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2195
        keyframe  = !get_bits1(&gb);
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    }
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    if (!keyframe) {
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1984
        ctx->pict_type = AV_PICTURE_TYPE_P;
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1984
        ctx->key_frame = 0;
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    } else {
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        ctx->pict_type = AV_PICTURE_TYPE_I;
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        ctx->key_frame = 1;
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    }
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    return size;
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}
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AVCodecParser ff_vp9_parser = {
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    .codec_ids      = { AV_CODEC_ID_VP9 },
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    .parser_parse   = parse,
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};