LCOV - code coverage report
Current view: top level - libavformat - g722.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 12 13 92.3 %
Date: 2017-12-18 06:23:41 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * g722 raw demuxer
       3             :  * Copyright (c) 2010 Martin Storsjo
       4             :  *
       5             :  * This file is part of FFmpeg.
       6             :  *
       7             :  * FFmpeg is free software; you can redistribute it and/or
       8             :  * modify it under the terms of the GNU Lesser General Public
       9             :  * License as published by the Free Software Foundation; either
      10             :  * version 2.1 of the License, or (at your option) any later version.
      11             :  *
      12             :  * FFmpeg is distributed in the hope that it will be useful,
      13             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      14             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      15             :  * Lesser General Public License for more details.
      16             :  *
      17             :  * You should have received a copy of the GNU Lesser General Public
      18             :  * License along with FFmpeg; if not, write to the Free Software
      19             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      20             :  */
      21             : 
      22             : #include "libavutil/avassert.h"
      23             : #include "avformat.h"
      24             : #include "internal.h"
      25             : #include "rawdec.h"
      26             : 
      27           1 : static int g722_read_header(AVFormatContext *s)
      28             : {
      29             :     AVStream *st;
      30             : 
      31           1 :     st = avformat_new_stream(s, NULL);
      32           1 :     if (!st)
      33           0 :         return AVERROR(ENOMEM);
      34             : 
      35           1 :     st->codecpar->codec_type  = AVMEDIA_TYPE_AUDIO;
      36           1 :     st->codecpar->codec_id    = AV_CODEC_ID_ADPCM_G722;
      37           1 :     st->codecpar->sample_rate = 16000;
      38           1 :     st->codecpar->channels    = 1;
      39             : 
      40           2 :     st->codecpar->bits_per_coded_sample =
      41           2 :         av_get_bits_per_sample(st->codecpar->codec_id);
      42             : 
      43           1 :     av_assert0(st->codecpar->bits_per_coded_sample > 0);
      44             : 
      45           1 :     avpriv_set_pts_info(st, 64, 1, st->codecpar->sample_rate);
      46           1 :     return 0;
      47             : }
      48             : 
      49             : AVInputFormat ff_g722_demuxer = {
      50             :     .name           = "g722",
      51             :     .long_name      = NULL_IF_CONFIG_SMALL("raw G.722"),
      52             :     .read_header    = g722_read_header,
      53             :     .read_packet    = ff_raw_read_partial_packet,
      54             :     .flags          = AVFMT_GENERIC_INDEX,
      55             :     .extensions     = "g722,722",
      56             :     .raw_codec_id   = AV_CODEC_ID_ADPCM_G722,
      57             : };

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