LCOV - code coverage report
Current view: top level - libavformat - aptxdec.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 17 0.0 %
Date: 2017-12-13 02:34:56 Functions: 0 2 0.0 %

          Line data    Source code
       1             : /*
       2             :  * RAW aptX demuxer
       3             :  *
       4             :  * Copyright (C) 2017  Aurelien Jacobs <aurel@gnuage.org>
       5             :  *
       6             :  * This file is part of FFmpeg.
       7             :  *
       8             :  * FFmpeg is free software; you can redistribute it and/or
       9             :  * modify it under the terms of the GNU Lesser General Public
      10             :  * License as published by the Free Software Foundation; either
      11             :  * version 2.1 of the License, or (at your option) any later version.
      12             :  *
      13             :  * FFmpeg is distributed in the hope that it will be useful,
      14             :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      15             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      16             :  * Lesser General Public License for more details.
      17             :  *
      18             :  * You should have received a copy of the GNU Lesser General Public
      19             :  * License along with FFmpeg; if not, write to the Free Software
      20             :  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
      21             :  */
      22             : 
      23             : #include "avformat.h"
      24             : #include "rawdec.h"
      25             : 
      26             : #define APTX_BLOCK_SIZE   4
      27             : #define APTX_PACKET_SIZE  (256*APTX_BLOCK_SIZE)
      28             : 
      29             : typedef struct AptXDemuxerContext {
      30             :     AVClass *class;
      31             :     int sample_rate;
      32             : } AptXDemuxerContext;
      33             : 
      34           0 : static int aptx_read_header(AVFormatContext *s)
      35             : {
      36           0 :     AptXDemuxerContext *s1 = s->priv_data;
      37           0 :     AVStream *st = avformat_new_stream(s, NULL);
      38           0 :     if (!st)
      39           0 :         return AVERROR(ENOMEM);
      40           0 :     st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
      41           0 :     st->codecpar->codec_id = AV_CODEC_ID_APTX;
      42           0 :     st->codecpar->format = AV_SAMPLE_FMT_S32P;
      43           0 :     st->codecpar->channels = 2;
      44           0 :     st->codecpar->sample_rate = s1->sample_rate;
      45           0 :     st->codecpar->bits_per_coded_sample = 4;
      46           0 :     st->codecpar->block_align = APTX_BLOCK_SIZE;
      47           0 :     st->codecpar->frame_size = APTX_PACKET_SIZE;
      48           0 :     st->start_time = 0;
      49           0 :     return 0;
      50             : }
      51             : 
      52           0 : static int aptx_read_packet(AVFormatContext *s, AVPacket *pkt)
      53             : {
      54           0 :     return av_get_packet(s->pb, pkt, APTX_PACKET_SIZE);
      55             : }
      56             : 
      57             : static const AVOption aptx_options[] = {
      58             :     { "sample_rate", "", offsetof(AptXDemuxerContext, sample_rate), AV_OPT_TYPE_INT, {.i64 = 48000}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
      59             :     { NULL },
      60             : };
      61             : 
      62             : static const AVClass aptx_demuxer_class = {
      63             :     .class_name = "aptx demuxer",
      64             :     .item_name  = av_default_item_name,
      65             :     .option     = aptx_options,
      66             :     .version    = LIBAVUTIL_VERSION_INT,
      67             : };
      68             : 
      69             : AVInputFormat ff_aptx_demuxer = {
      70             :     .name           = "aptx",
      71             :     .long_name      = NULL_IF_CONFIG_SMALL("raw aptX"),
      72             :     .extensions     = "aptx",
      73             :     .priv_data_size = sizeof(AptXDemuxerContext),
      74             :     .read_header    = aptx_read_header,
      75             :     .read_packet    = aptx_read_packet,
      76             :     .flags          = AVFMT_GENERIC_INDEX,
      77             :     .priv_class     = &aptx_demuxer_class,
      78             : };

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