X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg_decoder.h;h=c3747961266789a8b2da5447d15dc9c578d3cc1b;hb=996b0c06e23bcb6b300d7b8799df94993692e07d;hp=58e08a7797a005eeaefab25e8fa5553ee6c15bf2;hpb=73e4d3e55ea103dfbb0e26ed47019fda2612a902;p=dcpomatic.git

diff --git a/src/lib/ffmpeg_decoder.h b/src/lib/ffmpeg_decoder.h
index 58e08a779..c37479612 100644
--- a/src/lib/ffmpeg_decoder.h
+++ b/src/lib/ffmpeg_decoder.h
@@ -1,3 +1,5 @@
+/* -*- c-basic-offset: 8; default-tab-width: 8; -*- */
+
 /*
     Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
 
@@ -26,12 +28,17 @@
 #include <stdint.h>
 #include <boost/shared_ptr.hpp>
 #include <boost/optional.hpp>
+#include <boost/thread/mutex.hpp>
 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 "film.h"
+#include "ffmpeg_content.h"
 
 struct AVFilterGraph;
 struct AVCodecContext;
@@ -49,55 +56,71 @@ class Log;
 /** @class FFmpegDecoder
  *  @brief A decoder using FFmpeg to decode content.
  */
-class FFmpegDecoder : public Decoder
+class FFmpegDecoder : public VideoDecoder, public AudioDecoder
 {
 public:
-	FFmpegDecoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *, bool, bool);
+	FFmpegDecoder (boost::shared_ptr<const Film>, boost::shared_ptr<const FFmpegContent>, bool video, bool audio, bool subtitles);
 	~FFmpegDecoder ();
 
-	/* Methods to query our input video */
-	float frames_per_second () const;
-	Size native_size () const;
-	int audio_channels () const;
-	int audio_sample_rate () const;
-	AVSampleFormat audio_sample_format () const;
-	int64_t audio_channel_layout () const;
-	bool has_subtitles () const;
+	/* Decoder */
+
+	void pass ();
+	void seek (Time);
+	void seek_back ();
+	void seek_forward ();
+	Time next () const;
+
+	/* VideoDecoder */
+
+	float video_frame_rate () const;
+	libdcp::Size video_size () const;
+	ContentVideoFrame video_length () const;
+
+	/* FFmpegDecoder */
+
+	std::vector<boost::shared_ptr<FFmpegSubtitleStream> > subtitle_streams () const {
+		return _subtitle_streams;
+	}
+	
+	std::vector<boost::shared_ptr<FFmpegAudioStream> > audio_streams () const {
+		return _audio_streams;
+	}
 
-	std::vector<AudioStream> audio_streams () const;
-	std::vector<SubtitleStream> subtitle_streams () const;
+	boost::shared_ptr<const FFmpegContent> ffmpeg_content () const {
+		return _ffmpeg_content;
+	}
 
 private:
 
-	bool do_pass ();
+	/* No copy construction */
+	FFmpegDecoder (FFmpegDecoder const &);
+	FFmpegDecoder& operator= (FFmpegDecoder const &);
+
 	PixelFormat pixel_format () const;
-	int time_base_numerator () const;
-	int time_base_denominator () const;
-	int sample_aspect_ratio_numerator () const;
-	int sample_aspect_ratio_denominator () const;
+	AVSampleFormat audio_sample_format () const;
+	int bytes_per_audio_sample () const;
+	void do_seek (Time, bool, bool);
 
 	void setup_general ();
 	void setup_video ();
 	void setup_audio ();
 	void setup_subtitle ();
 
+	bool decode_video_packet ();
+	void decode_audio_packet ();
+
 	void maybe_add_subtitle ();
+	boost::shared_ptr<AudioBuffers> deinterleave_audio (uint8_t** data, int size);
 
 	std::string stream_name (AVStream* s) const;
 
+	boost::shared_ptr<const FFmpegContent> _ffmpeg_content;
+
 	AVFormatContext* _format_context;
 	int _video_stream;
-	int _audio_stream; ///< may be < 0 if there is no audio
-	int _subtitle_stream; ///< may be < 0 if there is no subtitle
 	
-	AVFrame* _video_frame[2];
-	int _last_video_frame;
-	int _this_video_frame;
-	AVFrame* _audio_frame;
+	AVFrame* _frame;
 
-	std::vector<AudioStream> _audio_streams;
-	std::vector<SubtitleStream> _subtitle_streams;
-	
 	AVCodecContext* _video_codec_context;
 	AVCodec* _video_codec;
 	AVCodecContext* _audio_codec_context;    ///< may be 0 if there is no audio
@@ -107,6 +130,19 @@ private:
 
 	AVPacket _packet;
 
-	boost::optional<double> _first_video;
-	boost::optional<double> _first_audio;
+	std::list<boost::shared_ptr<FilterGraph> > _filter_graphs;
+	boost::mutex _filter_graphs_mutex;
+
+        std::vector<boost::shared_ptr<FFmpegSubtitleStream> > _subtitle_streams;
+        std::vector<boost::shared_ptr<FFmpegAudioStream> > _audio_streams;
+
+	bool _decode_video;
+	bool _decode_audio;
+	bool _decode_subtitles;
+
+	/* It would appear (though not completely verified) that one must have
+	   a mutex around calls to avcodec_open* and avcodec_close... and here
+	   it is.
+	*/
+	static boost::mutex _mutex;
 };