LCOV - code coverage report
Current view: top level - libavcodec - xma_parser.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 14 0.0 %
Date: 2017-12-14 01:15:32 Functions: 0 1 0.0 %

          Line data    Source code
       1             : /*
       2             :  * This file is part of FFmpeg.
       3             :  *
       4             :  * FFmpeg is free software; you can redistribute it and/or
       5             :  * modify it under the terms of the GNU Lesser General Public
       6             :  * License as published by the Free Software Foundation; either
       7             :  * version 2.1 of the License, or (at your option) any later version.
       8             :  *
       9             :  * FFmpeg is distributed in the hope that it will be useful,
      10             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      11             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      12             :  * Lesser General Public License for more details.
      13             :  *
      14             :  * You should have received a copy of the GNU Lesser General Public
      15             :  * License along with FFmpeg; if not, write to the Free Software
      16             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      17             :  */
      18             : 
      19             : /**
      20             :  * @file
      21             :  * XMA2 audio parser
      22             :  */
      23             : 
      24             : #include "parser.h"
      25             : 
      26             : typedef struct XMAParserContext{
      27             :     int skip_packets;
      28             : } XMAParserContext;
      29             : 
      30           0 : static int xma_parse(AVCodecParserContext *s1, AVCodecContext *avctx,
      31             :                      const uint8_t **poutbuf, int *poutbuf_size,
      32             :                      const uint8_t *buf, int buf_size)
      33             : {
      34           0 :     XMAParserContext *s = s1->priv_data;
      35             : 
      36           0 :     if (buf_size % 2048 == 0) {
      37           0 :         int duration = 0, packet, nb_packets = buf_size / 2048;
      38             : 
      39           0 :         for (packet = 0; packet < nb_packets; packet++) {
      40           0 :             if (s->skip_packets == 0) {
      41           0 :                 duration += buf[packet * 2048] * 128;
      42           0 :                 s->skip_packets = buf[packet * 2048 + 3] + 1;
      43             :             }
      44           0 :             s->skip_packets--;
      45             :         }
      46             : 
      47           0 :         s1->duration = duration;
      48           0 :         s1->key_frame = !!duration;
      49             :     }
      50             : 
      51             :     /* always return the full packet. this parser isn't doing any splitting or
      52             :        combining, only packet analysis */
      53           0 :     *poutbuf      = buf;
      54           0 :     *poutbuf_size = buf_size;
      55           0 :     return buf_size;
      56             : }
      57             : 
      58             : AVCodecParser ff_xma_parser = {
      59             :     .codec_ids      = { AV_CODEC_ID_XMA2 },
      60             :     .priv_data_size = sizeof(XMAParserContext),
      61             :     .parser_parse   = xma_parse,
      62             : };

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