/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic 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,
+ DCP-o-matic 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.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
* @brief A decoder using FFmpeg to decode content.
*/
-#include <vector>
-#include <string>
-#include <stdint.h>
-#include <boost/shared_ptr.hpp>
-#include <boost/optional.hpp>
+#include "util.h"
+#include "decoder.h"
+#include "ffmpeg.h"
extern "C" {
#include <libavcodec/avcodec.h>
-#include <libpostproc/postprocess.h>
}
-#include "util.h"
-#include "decoder.h"
+#include <boost/thread/mutex.hpp>
+#include <stdint.h>
-struct AVFilterGraph;
-struct AVCodecContext;
-struct AVFilterContext;
-struct AVFormatContext;
-struct AVFrame;
-struct AVBufferContext;
-struct AVCodec;
-struct AVStream;
-class Job;
-class Options;
-class Image;
class Log;
+class VideoFilterGraph;
+class FFmpegAudioStream;
+class AudioBuffers;
+class Image;
+struct ffmpeg_pts_offset_test;
/** @class FFmpegDecoder
* @brief A decoder using FFmpeg to decode content.
*/
-class FFmpegDecoder : public Decoder
+class FFmpegDecoder : public FFmpeg, public Decoder
{
public:
- FFmpegDecoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *);
- ~FFmpegDecoder ();
+ FFmpegDecoder (std::shared_ptr<const Film> film, std::shared_ptr<const FFmpegContent>, bool fast);
- /* Methods to query our input video */
- float frames_per_second () const;
- Size native_size () const;
- int time_base_numerator () const;
- int time_base_denominator () const;
- int sample_aspect_ratio_numerator () const;
- int sample_aspect_ratio_denominator () const;
-
- void set_audio_stream (boost::optional<AudioStream>);
- void set_subtitle_stream (boost::optional<SubtitleStream>);
+ bool pass () override;
+ void seek (dcpomatic::ContentTime time, bool) override;
private:
+ friend struct ::ffmpeg_pts_offset_test;
- bool pass ();
- PixelFormat pixel_format () const;
- AVSampleFormat audio_sample_format () const;
- int bytes_per_audio_sample () const;
+ bool flush ();
- void filter_and_emit_video (AVFrame *);
+ AVSampleFormat audio_sample_format (std::shared_ptr<FFmpegAudioStream> stream) const;
+ int bytes_per_audio_sample (std::shared_ptr<FFmpegAudioStream> stream) const;
- void setup_general ();
- void setup_video ();
- void setup_audio ();
- void setup_subtitle ();
+ std::shared_ptr<FFmpegAudioStream> audio_stream_from_index (int index) const;
+ std::pair<int, bool> decode_audio_packet (std::shared_ptr<FFmpegAudioStream> stream, AVPacket* packet);
+ void process_audio_frame (std::shared_ptr<FFmpegAudioStream> stream);
- void maybe_add_subtitle ();
- boost::shared_ptr<AudioBuffers> deinterleave_audio (uint8_t* data, int size);
+ bool decode_and_process_video_packet (AVPacket* packet);
+ void decode_and_process_audio_packet (AVPacket* packet);
+ void decode_and_process_subtitle_packet (AVPacket* packet);
- std::string stream_name (AVStream* s) const;
+ void process_bitmap_subtitle (AVSubtitleRect const * rect, dcpomatic::ContentTime from);
+ void process_ass_subtitle (std::string ass, dcpomatic::ContentTime from);
- AVFormatContext* _format_context;
- int _video_stream;
-
- AVFrame* _frame;
+ void maybe_add_subtitle ();
+ std::shared_ptr<AudioBuffers> deinterleave_audio (std::shared_ptr<FFmpegAudioStream> stream) const;
- AVCodecContext* _video_codec_context;
- AVCodec* _video_codec;
- AVCodecContext* _audio_codec_context; ///< may be 0 if there is no audio
- AVCodec* _audio_codec; ///< may be 0 if there is no audio
- AVCodecContext* _subtitle_codec_context; ///< may be 0 if there is no subtitle
- AVCodec* _subtitle_codec; ///< may be 0 if there is no subtitle
+ std::list<std::shared_ptr<VideoFilterGraph> > _filter_graphs;
+ boost::mutex _filter_graphs_mutex;
- AVPacket _packet;
+ dcpomatic::ContentTime _pts_offset;
+ boost::optional<dcpomatic::ContentTime> _current_subtitle_to;
+ /** true if we have a subtitle which has not had emit_stop called for it yet */
+ bool _have_current_subtitle = false;
- boost::optional<double> _first_video;
- boost::optional<double> _first_audio;
+ std::shared_ptr<Image> _black_image;
- std::list<boost::shared_ptr<FilterGraph> > _filter_graphs;
+ std::map<std::shared_ptr<FFmpegAudioStream>, boost::optional<dcpomatic::ContentTime>> _next_time;
};