#include <list>
#include <boost/shared_ptr.hpp>
#include <boost/enable_shared_from_this.hpp>
-#include "video_source.h"
-#include "audio_source.h"
-#include "video_sink.h"
-#include "audio_sink.h"
+#include "playlist.h"
+#include "audio_buffers.h"
+#include "content.h"
-class VideoDecoder;
-class SndfileDecoder;
class Job;
class Film;
class Playlist;
class AudioContent;
-
-class Player : public VideoSource, public AudioSource, public VideoSink, public boost::enable_shared_from_this<Player>
+class Piece;
+class Image;
+class Resampler;
+
+/** @class Player
+ * @brief A class which can `play' a Playlist; emitting its audio and video.
+ */
+
+class Player : public boost::enable_shared_from_this<Player>
{
public:
Player (boost::shared_ptr<const Film>, boost::shared_ptr<const Playlist>);
void disable_video ();
void disable_audio ();
- void disable_subtitles ();
- void disable_video_sync ();
bool pass ();
- void set_progress (boost::shared_ptr<Job>);
- bool seek (double);
+ void seek (Time);
+ void seek_back ();
+
+ Time video_position () const {
+ return _video_position;
+ }
- double last_video_time () const;
+ void set_video_container_size (libdcp::Size);
+
+ /** Emitted when a video frame is ready.
+ * First parameter is the video image.
+ * Second parameter is true if the image is the same as the last one that was emitted.
+ * Third parameter is the time.
+ */
+ boost::signals2::signal<void (boost::shared_ptr<const Image>, bool, Time)> Video;
+
+ /** Emitted when some audio data is ready */
+ boost::signals2::signal<void (boost::shared_ptr<const AudioBuffers>, Time)> Audio;
private:
- void process_video (boost::shared_ptr<Image> i, bool same, boost::shared_ptr<Subtitle> s);
- void process_audio (boost::weak_ptr<const AudioContent>, boost::shared_ptr<AudioBuffers>);
- void setup_decoders ();
+
+ void process_video (boost::weak_ptr<Piece>, boost::shared_ptr<const Image>, bool, VideoContent::Frame);
+ void process_audio (boost::weak_ptr<Piece>, boost::shared_ptr<const AudioBuffers>, AudioContent::Frame);
+ void setup_pieces ();
void playlist_changed ();
void content_changed (boost::weak_ptr<Content>, int);
+ void do_seek (Time, bool);
+ void flush ();
+ void emit_black ();
+ void emit_silence (OutputAudioFrame);
+ boost::shared_ptr<Resampler> resampler (boost::shared_ptr<AudioContent>);
boost::shared_ptr<const Film> _film;
boost::shared_ptr<const Playlist> _playlist;
bool _video;
bool _audio;
- bool _subtitles;
-
- bool _have_valid_decoders;
- std::list<boost::shared_ptr<VideoDecoder> > _video_decoders;
- std::list<boost::shared_ptr<VideoDecoder> >::iterator _video_decoder;
- std::list<boost::shared_ptr<SndfileDecoder> > _sndfile_decoders;
- boost::shared_ptr<AudioBuffers> _sndfile_buffers;
+ /** Our pieces are ready to go; if this is false the pieces must be (re-)created before they are used */
+ bool _have_valid_pieces;
+ std::list<boost::shared_ptr<Piece> > _pieces;
+
+ /** The time after the last video that we emitted */
+ Time _video_position;
+ /** The time after the last audio that we emitted */
+ Time _audio_position;
+
+ AudioBuffers _audio_buffers;
- bool _video_sync;
+ libdcp::Size _video_container_size;
+ boost::shared_ptr<Image> _black_frame;
+ std::map<boost::shared_ptr<AudioContent>, boost::shared_ptr<Resampler> > _resamplers;
};
#endif