X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fffmpeg_decoder.h;h=174cc39954b9fccc92153ea249cfc421e4458e80;hb=47f25009bcbc765e397bcb471dd361a511c99daf;hp=18c2e2aeb316fa937a253a5dbc70a9bdd7535f96;hpb=9b0d04f34424c9aeddaf07007838f2c8c0113093;p=dcpomatic.git

diff --git a/src/lib/ffmpeg_decoder.h b/src/lib/ffmpeg_decoder.h
index 18c2e2aeb..174cc3995 100644
--- a/src/lib/ffmpeg_decoder.h
+++ b/src/lib/ffmpeg_decoder.h
@@ -25,12 +25,18 @@
 #include <string>
 #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;
@@ -39,8 +45,8 @@ struct AVFormatContext;
 struct AVFrame;
 struct AVBufferContext;
 struct AVCodec;
+struct AVStream;
 class Job;
-class FilmState;
 class Options;
 class Image;
 class Log;
@@ -48,45 +54,67 @@ 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<const FilmState>, boost::shared_ptr<const Options>, Job *, Log *, 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 */
-	int length_in_frames () const;
-	int decoding_frames () const;
-	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;
-
-private:
-
-	bool do_pass ();
-	PixelFormat pixel_format () const;
+	float video_frame_rate () const;
+	libdcp::Size native_size () const;
+	ContentVideoFrame video_length () const;
 	int time_base_numerator () const;
 	int time_base_denominator () const;
 	int sample_aspect_ratio_numerator () const;
 	int sample_aspect_ratio_denominator () const;
-	void overlay (boost::shared_ptr<Image> image) const;
+
+	std::vector<FFmpegSubtitleStream> subtitle_streams () const {
+		return _subtitle_streams;
+	}
+	
+	std::vector<FFmpegAudioStream> audio_streams () const {
+		return _audio_streams;
+	}
+
+	bool seek (double);
+	void seek_forward ();
+	void seek_back ();
+	bool pass ();
+
+private:
+
+	/* No copy construction */
+	FFmpegDecoder (FFmpegDecoder const &);
+	FFmpegDecoder& operator= (FFmpegDecoder const &);
+
+	PixelFormat pixel_format () const;
+	AVSampleFormat audio_sample_format () const;
+	int bytes_per_audio_sample () const;
+	bool do_seek (double, bool, bool);
+
+	void filter_and_emit_video ();
 
 	void setup_general ();
 	void setup_video ();
 	void setup_audio ();
 	void setup_subtitle ();
 
+	void decode_audio_packet ();
+
 	void maybe_add_subtitle ();
+	boost::shared_ptr<AudioBuffers> deinterleave_audio (uint8_t** data, int size);
+
+	void film_changed (Film::Property);
+
+	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* _frame;
 	
+	AVFrame* _frame;
+
 	AVCodecContext* _video_codec_context;
 	AVCodec* _video_codec;
 	AVCodecContext* _audio_codec_context;    ///< may be 0 if there is no audio
@@ -95,6 +123,20 @@ private:
 	AVCodec* _subtitle_codec;                ///< may be 0 if there is no subtitle
 
 	AVPacket _packet;
-	AVSubtitle _subtitle;
-	bool _have_subtitle;
+
+	std::list<boost::shared_ptr<FilterGraph> > _filter_graphs;
+	boost::mutex _filter_graphs_mutex;
+
+        std::vector<FFmpegSubtitleStream> _subtitle_streams;
+        std::vector<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;
 };