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/*
Copyright (C) 2012-2014 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/** @file src/ffmpeg_decoder.h
* @brief A decoder using FFmpeg to decode content.
*/
#include "util.h"
#include "video_decoder.h"
#include "audio_decoder.h"
#include "subtitle_decoder.h"
#include "ffmpeg.h"
extern "C" {
#include <libavcodec/avcodec.h>
}
#include <boost/shared_ptr.hpp>
#include <boost/thread/mutex.hpp>
#include <stdint.h>
class Log;
class FilterGraph;
class FFmpegAudioStream;
struct ffmpeg_pts_offset_test;
/** @class FFmpegDecoder
* @brief A decoder using FFmpeg to decode content.
*/
class FFmpegDecoder : public VideoDecoder, public AudioDecoder, public SubtitleDecoder, public FFmpeg
{
public:
FFmpegDecoder (boost::shared_ptr<const FFmpegContent>, boost::shared_ptr<Log>, bool fast);
private:
friend struct ::ffmpeg_pts_offset_test;
bool pass ();
void seek (ContentTime time, bool);
void flush ();
AVSampleFormat audio_sample_format (boost::shared_ptr<FFmpegAudioStream> stream) const;
int bytes_per_audio_sample (boost::shared_ptr<FFmpegAudioStream> stream) const;
bool decode_video_packet ();
void decode_audio_packet ();
void decode_subtitle_packet ();
void decode_bitmap_subtitle (AVSubtitleRect const * rect, ContentTimePeriod period);
void maybe_add_subtitle ();
boost::shared_ptr<AudioBuffers> deinterleave_audio (boost::shared_ptr<FFmpegAudioStream> stream, uint8_t** data, int size);
std::list<ContentTimePeriod> image_subtitles_during (ContentTimePeriod, bool starting) const;
std::list<ContentTimePeriod> text_subtitles_during (ContentTimePeriod, bool starting) const;
boost::shared_ptr<Log> _log;
std::list<boost::shared_ptr<FilterGraph> > _filter_graphs;
boost::mutex _filter_graphs_mutex;
ContentTime _pts_offset;
};
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