LCOV - code coverage report
Current view: top level - libavcodec - cook_parser.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 9 9 100.0 %
Date: 2017-12-14 01:15:32 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * Copyright (c) 2012 Justin Ruggles <justin.ruggles@gmail.com>
       3             :  *
       4             :  * This file is part of FFmpeg.
       5             :  *
       6             :  * FFmpeg is free software; you can redistribute it and/or
       7             :  * modify it under the terms of the GNU Lesser General Public
       8             :  * License as published by the Free Software Foundation; either
       9             :  * version 2.1 of the License, or (at your option) any later version.
      10             :  *
      11             :  * FFmpeg is distributed in the hope that it will be useful,
      12             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      13             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      14             :  * Lesser General Public License for more details.
      15             :  *
      16             :  * You should have received a copy of the GNU Lesser General Public
      17             :  * License along with FFmpeg; if not, write to the Free Software
      18             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      19             :  */
      20             : 
      21             : /**
      22             :  * @file
      23             :  * Cook audio parser
      24             :  *
      25             :  * Determines subpacket duration from extradata.
      26             :  */
      27             : 
      28             : #include <stdint.h>
      29             : 
      30             : #include "libavutil/intreadwrite.h"
      31             : #include "parser.h"
      32             : 
      33             : typedef struct CookParseContext {
      34             :     int duration;
      35             : } CookParseContext;
      36             : 
      37         503 : static int cook_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
      38             :                       const uint8_t **poutbuf, int *poutbuf_size,
      39             :                       const uint8_t *buf, int buf_size)
      40             : {
      41         503 :     CookParseContext *s = s1->priv_data;
      42             : 
      43         508 :     if (!s->duration &&
      44          10 :                 avctx->extradata && avctx->extradata_size >= 8 && avctx->channels)
      45           5 :         s->duration = AV_RB16(avctx->extradata + 4) / avctx->channels;
      46             : 
      47         503 :     s1->duration = s->duration;
      48             : 
      49             :     /* always return the full packet. this parser isn't doing any splitting or
      50             :        combining, only setting packet duration */
      51         503 :     *poutbuf      = buf;
      52         503 :     *poutbuf_size = buf_size;
      53         503 :     return buf_size;
      54             : }
      55             : 
      56             : AVCodecParser ff_cook_parser = {
      57             :     .codec_ids      = { AV_CODEC_ID_COOK },
      58             :     .priv_data_size = sizeof(CookParseContext),
      59             :     .parser_parse   = cook_parse,
      60             : };

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