X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg_decoder.h;h=bd4b74f88395ddfbb9461ffbcfbd515632fac017;hb=d33678b8e64de795becd3fa336dbbb099c691f58;hp=8f0482aad8331dcd12685e1d4724e08469b20eb8;hpb=09a9ac376db005a40a351736bcff4077f098825d;p=dcpomatic.git

diff --git a/src/lib/ffmpeg_decoder.h b/src/lib/ffmpeg_decoder.h
index 8f0482aad..bd4b74f88 100644
--- a/src/lib/ffmpeg_decoder.h
+++ b/src/lib/ffmpeg_decoder.h
@@ -1,88 +1,105 @@
 /*
-    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/>.
 
 */
 
+
 /** @file  src/ffmpeg_decoder.h
  *  @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 <boost/thread/mutex.hpp>
+
+#include "bitmap_text.h"
+#include "decoder.h"
+#include "ffmpeg.h"
+#include "video_filter_graph_set.h"
 extern "C" {
 #include <libavcodec/avcodec.h>
-#include <libpostproc/postprocess.h>
 }
-#include "util.h"
-#include "decoder.h"
-#include "video_decoder.h"
-#include "audio_decoder.h"
-#include "ffmpeg.h"
+#include <boost/thread/mutex.hpp>
+#include <stdint.h>
+
+
+class AudioBuffers;
+class FFmpegAudioStream;
+class Image;
+class Log;
+class VideoFilterGraph;
+struct ffmpeg_pts_offset_test;
 
-class Film;
-class ffmpeg_pts_offset_test;
 
 /** @class FFmpegDecoder
  *  @brief A decoder using FFmpeg to decode content.
  */
-class FFmpegDecoder : public VideoDecoder, public AudioDecoder, public FFmpeg
+class FFmpegDecoder : public FFmpeg, public Decoder
 {
 public:
-	FFmpegDecoder (boost::shared_ptr<const Film>, boost::shared_ptr<const FFmpegContent>, bool video, bool audio);
-	~FFmpegDecoder ();
+	FFmpegDecoder (std::shared_ptr<const Film> film, std::shared_ptr<const FFmpegContent>, bool fast);
 
-	void pass ();
-	void seek (VideoContent::Frame);
-	void seek_back ();
-	bool done () const;
+	bool pass () override;
+	void seek (dcpomatic::ContentTime time, bool) override;
 
 private:
-	friend class ::ffmpeg_pts_offset_test;
+	friend struct ::ffmpeg_pts_offset_test;
+
+	enum class FlushResult {
+		DONE,
+		AGAIN
+	};
+
+	FlushResult flush();
 
-	/* No copy construction */
-	FFmpegDecoder (FFmpegDecoder const &);
-	FFmpegDecoder& operator= (FFmpegDecoder const &);
+	AVSampleFormat audio_sample_format (std::shared_ptr<FFmpegAudioStream> stream) const;
+	int bytes_per_audio_sample (std::shared_ptr<FFmpegAudioStream> stream) const;
 
-	static double compute_pts_offset (double, double, float);
+	std::shared_ptr<FFmpegAudioStream> audio_stream_from_index (int index) const;
+	void process_audio_frame (std::shared_ptr<FFmpegAudioStream> stream);
 
-	void setup_subtitle ();
+	void process_video_frame ();
 
-	AVSampleFormat audio_sample_format () const;
-	int bytes_per_audio_sample () const;
-	void do_seek (VideoContent::Frame, bool, bool);
+	bool decode_and_process_video_packet (AVPacket* packet);
+	void decode_and_process_audio_packet (AVPacket* packet);
+	void decode_and_process_subtitle_packet (AVPacket* packet);
 
-	bool decode_video_packet ();
-	void decode_audio_packet ();
+	BitmapText process_bitmap_subtitle (AVSubtitleRect const * rect);
+	void process_ass_subtitle (std::string ass, dcpomatic::ContentTime from);
 
 	void maybe_add_subtitle ();
-	boost::shared_ptr<AudioBuffers> deinterleave_audio (uint8_t** data, int size);
 
-	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<boost::shared_ptr<FilterGraph> > _filter_graphs;
-	boost::mutex _filter_graphs_mutex;
+	FlushResult flush_codecs();
+	FlushResult flush_fill();
+
+	VideoFilterGraphSet _filter_graphs;
+
+	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;
+
+	std::shared_ptr<Image> _black_image;
+
+	std::map<std::shared_ptr<FFmpegAudioStream>, boost::optional<dcpomatic::ContentTime>> _next_time;
 
-	bool _decode_video;
-	bool _decode_audio;
+	enum class FlushState {
+		CODECS,
+		AUDIO_DECODER,
+		FILL,
+	};
 
-	double _pts_offset;
+	FlushState _flush_state = FlushState::CODECS;
 };