LCOV - code coverage report
Current view: top level - libavformat - aptxdec.c (source / functions) Hit Total Coverage
Test: coverage.info Lines: 0 33 0.0 %
Date: 2018-02-22 12:37:23 Functions: 0 5 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             : #define APTX_HD_BLOCK_SIZE   6
      30             : #define APTX_HD_PACKET_SIZE  (256*APTX_HD_BLOCK_SIZE)
      31             : 
      32             : typedef struct AptXDemuxerContext {
      33             :     AVClass *class;
      34             :     int sample_rate;
      35             : } AptXDemuxerContext;
      36             : 
      37           0 : static AVStream *aptx_read_header_common(AVFormatContext *s)
      38             : {
      39           0 :     AptXDemuxerContext *s1 = s->priv_data;
      40           0 :     AVStream *st = avformat_new_stream(s, NULL);
      41           0 :     if (!st)
      42           0 :         return NULL;
      43           0 :     st->codecpar->codec_type = AVMEDIA_TYPE_AUDIO;
      44           0 :     st->codecpar->format = AV_SAMPLE_FMT_S32P;
      45           0 :     st->codecpar->channels = 2;
      46           0 :     st->codecpar->sample_rate = s1->sample_rate;
      47           0 :     st->start_time = 0;
      48           0 :     return st;
      49             : }
      50             : 
      51           0 : static int aptx_read_header(AVFormatContext *s)
      52             : {
      53           0 :     AVStream *st = aptx_read_header_common(s);
      54           0 :     if (!st)
      55           0 :         return AVERROR(ENOMEM);
      56           0 :     st->codecpar->codec_id = AV_CODEC_ID_APTX;
      57           0 :     st->codecpar->bits_per_coded_sample = 4;
      58           0 :     st->codecpar->block_align = APTX_BLOCK_SIZE;
      59           0 :     st->codecpar->frame_size = APTX_PACKET_SIZE;
      60           0 :     return 0;
      61             : }
      62             : 
      63           0 : static int aptx_hd_read_header(AVFormatContext *s)
      64             : {
      65           0 :     AVStream *st = aptx_read_header_common(s);
      66           0 :     if (!st)
      67           0 :         return AVERROR(ENOMEM);
      68           0 :     st->codecpar->codec_id = AV_CODEC_ID_APTX_HD;
      69           0 :     st->codecpar->bits_per_coded_sample = 6;
      70           0 :     st->codecpar->block_align = APTX_HD_BLOCK_SIZE;
      71           0 :     st->codecpar->frame_size = APTX_HD_PACKET_SIZE;
      72           0 :     return 0;
      73             : }
      74             : 
      75           0 : static int aptx_read_packet(AVFormatContext *s, AVPacket *pkt)
      76             : {
      77           0 :     return av_get_packet(s->pb, pkt, APTX_PACKET_SIZE);
      78             : }
      79             : 
      80           0 : static int aptx_hd_read_packet(AVFormatContext *s, AVPacket *pkt)
      81             : {
      82           0 :     return av_get_packet(s->pb, pkt, APTX_HD_PACKET_SIZE);
      83             : }
      84             : 
      85             : static const AVOption aptx_options[] = {
      86             :     { "sample_rate", "", offsetof(AptXDemuxerContext, sample_rate), AV_OPT_TYPE_INT, {.i64 = 48000}, 0, INT_MAX, AV_OPT_FLAG_DECODING_PARAM },
      87             :     { NULL },
      88             : };
      89             : 
      90             : #if CONFIG_APTX_DEMUXER
      91             : static const AVClass aptx_demuxer_class = {
      92             :     .class_name = "aptx demuxer",
      93             :     .item_name  = av_default_item_name,
      94             :     .option     = aptx_options,
      95             :     .version    = LIBAVUTIL_VERSION_INT,
      96             : };
      97             : 
      98             : AVInputFormat ff_aptx_demuxer = {
      99             :     .name           = "aptx",
     100             :     .long_name      = NULL_IF_CONFIG_SMALL("raw aptX"),
     101             :     .extensions     = "aptx",
     102             :     .priv_data_size = sizeof(AptXDemuxerContext),
     103             :     .read_header    = aptx_read_header,
     104             :     .read_packet    = aptx_read_packet,
     105             :     .flags          = AVFMT_GENERIC_INDEX,
     106             :     .priv_class     = &aptx_demuxer_class,
     107             : };
     108             : #endif
     109             : 
     110             : #if CONFIG_APTX_HD_DEMUXER
     111             : static const AVClass aptx_hd_demuxer_class = {
     112             :     .class_name = "aptx hd demuxer",
     113             :     .item_name  = av_default_item_name,
     114             :     .option     = aptx_options,
     115             :     .version    = LIBAVUTIL_VERSION_INT,
     116             : };
     117             : 
     118             : AVInputFormat ff_aptx_hd_demuxer = {
     119             :     .name           = "aptx_hd",
     120             :     .long_name      = NULL_IF_CONFIG_SMALL("raw aptX HD"),
     121             :     .extensions     = "aptxhd",
     122             :     .priv_data_size = sizeof(AptXDemuxerContext),
     123             :     .read_header    = aptx_hd_read_header,
     124             :     .read_packet    = aptx_hd_read_packet,
     125             :     .flags          = AVFMT_GENERIC_INDEX,
     126             :     .priv_class     = &aptx_hd_demuxer_class,
     127             : };
     128             : #endif

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