LCOV - code coverage report
Current view: top level - libavformat - ircamenc.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 11 15 73.3 %
Date: 2017-12-15 11:05:35 Functions: 1 1 100.0 %

          Line data    Source code
       1             : /*
       2             :  * IRCAM muxer
       3             :  * Copyright (c) 2012 Paul B Mahol
       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/intreadwrite.h"
      23             : #include "avformat.h"
      24             : #include "avio_internal.h"
      25             : #include "internal.h"
      26             : #include "rawenc.h"
      27             : #include "ircam.h"
      28             : 
      29           1 : static int ircam_write_header(AVFormatContext *s)
      30             : {
      31           1 :     AVCodecParameters *par = s->streams[0]->codecpar;
      32             :     uint32_t tag;
      33             : 
      34           1 :     if (s->nb_streams != 1) {
      35           0 :         av_log(s, AV_LOG_ERROR, "only one stream is supported\n");
      36           0 :         return AVERROR(EINVAL);
      37             :     }
      38             : 
      39           1 :     tag = ff_codec_get_tag(ff_codec_ircam_le_tags, par->codec_id);
      40           1 :     if (!tag) {
      41           0 :         av_log(s, AV_LOG_ERROR, "unsupported codec\n");
      42           0 :         return AVERROR(EINVAL);
      43             :     }
      44             : 
      45           1 :     avio_wl32(s->pb, 0x0001A364);
      46           1 :     avio_wl32(s->pb, av_q2intfloat((AVRational){par->sample_rate, 1}));
      47           1 :     avio_wl32(s->pb, par->channels);
      48           1 :     avio_wl32(s->pb, tag);
      49           1 :     ffio_fill(s->pb, 0, 1008);
      50           1 :     return 0;
      51             : }
      52             : 
      53             : AVOutputFormat ff_ircam_muxer = {
      54             :     .name           = "ircam",
      55             :     .extensions     = "sf,ircam",
      56             :     .long_name      = NULL_IF_CONFIG_SMALL("Berkeley/IRCAM/CARL Sound Format"),
      57             :     .audio_codec    = AV_CODEC_ID_PCM_S16LE,
      58             :     .video_codec    = AV_CODEC_ID_NONE,
      59             :     .write_header   = ircam_write_header,
      60             :     .write_packet   = ff_raw_write_packet,
      61             :     .codec_tag      = (const AVCodecTag *const []){ ff_codec_ircam_le_tags, 0 },
      62             : };

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