-/* -*- c-basic-offset: 8; default-tab-width: 8; -*- */
-
/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2014 Carl Hetherington <cth@carlh.net>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
#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"
+#include "film.h"
+#include "rect.h"
+#include "audio_merger.h"
+#include "audio_content.h"
+#include "decoded.h"
class Job;
class Film;
class Playlist;
class AudioContent;
class Piece;
+class Image;
+
+/** @class PlayerImage
+ * @brief A wrapper for an Image which contains some pending operations; these may
+ * not be necessary if the receiver of the PlayerImage throws it away.
+ */
+class PlayerImage
+{
+public:
+ PlayerImage (boost::shared_ptr<const Image>, Crop, dcp::Size, dcp::Size, Scaler const *);
+
+ void set_subtitle (boost::shared_ptr<const Image>, Position<int>);
+
+ boost::shared_ptr<Image> image (AVPixelFormat, bool);
+
+private:
+ boost::shared_ptr<const Image> _in;
+ Crop _crop;
+ dcp::Size _inter_size;
+ dcp::Size _out_size;
+ Scaler const * _scaler;
+ boost::shared_ptr<const Image> _subtitle_image;
+ Position<int> _subtitle_position;
+};
+class PlayerStatistics
+{
+public:
+ struct Video {
+ Video ()
+ : black (0)
+ , repeat (0)
+ , good (0)
+ , skip (0)
+ {}
+
+ int black;
+ int repeat;
+ int good;
+ int skip;
+ } video;
+
+ struct Audio {
+ Audio ()
+ : silence (0)
+ , good (0)
+ , skip (0)
+ {}
+
+ DCPTime silence;
+ int64_t good;
+ int64_t skip;
+ } audio;
+
+ void dump (boost::shared_ptr<Log>) const;
+};
+
/** @class Player
* @brief A class which can `play' a Playlist; emitting its audio and video.
*/
-
-class Player : public VideoSource, public AudioSource, public boost::enable_shared_from_this<Player>
+
+class Player : public boost::enable_shared_from_this<Player>, public boost::noncopyable
{
public:
Player (boost::shared_ptr<const Film>, boost::shared_ptr<const Playlist>);
void disable_video ();
void disable_audio ();
- void disable_subtitles ();
bool pass ();
- bool seek (Time);
- void seek_back ();
- void seek_forward ();
+ void seek (DCPTime, bool);
- Time last_video () const {
- return _last_video;
+ DCPTime video_position () const {
+ return _video_position;
}
+ void set_video_container_size (dcp::Size);
+ void set_approximate_size ();
+
+ bool repeat_last_video ();
+
+ PlayerStatistics const & statistics () const;
+
+ /** Emitted when a video frame is ready.
+ * First parameter is the video image.
+ * Second parameter is the eye(s) that should see this image.
+ * Third parameter is the colour conversion that should be used for this image.
+ * Fourth parameter is true if the image is the same as the last one that was emitted.
+ * Fifth parameter is the time.
+ */
+ boost::signals2::signal<void (boost::shared_ptr<PlayerImage>, Eyes, ColourConversion, bool, DCPTime)> Video;
+
+ /** Emitted when some audio data is ready */
+ boost::signals2::signal<void (boost::shared_ptr<const AudioBuffers>, DCPTime)> Audio;
+
+ /** Emitted when something has changed such that if we went back and emitted
+ * the last frame again it would look different. This is not emitted after
+ * a seek.
+ *
+ * The parameter is true if these signals are currently likely to be frequent.
+ */
+ boost::signals2::signal<void (bool)> Changed;
+
private:
+ friend class PlayerWrapper;
+ friend class Piece;
- void process_video (boost::shared_ptr<Piece>, boost::shared_ptr<const Image>, bool, boost::shared_ptr<Subtitle>, Time);
- void process_audio (boost::shared_ptr<Piece>, boost::shared_ptr<const AudioBuffers>, Time);
void setup_pieces ();
void playlist_changed ();
- void content_changed (boost::weak_ptr<Content>, int);
- void emit_black_frame ();
- void emit_silence (Time);
+ void content_changed (boost::weak_ptr<Content>, int, bool);
+ void do_seek (DCPTime, bool);
+ void flush ();
+ void emit_black ();
+ void emit_silence (DCPTime);
+ void film_changed (Film::Property);
+ void update_subtitle_from_image ();
+ void update_subtitle_from_text ();
+ void emit_video (boost::weak_ptr<Piece>, boost::shared_ptr<DecodedVideo>);
+ void emit_audio (boost::weak_ptr<Piece>, boost::shared_ptr<DecodedAudio>);
+ void step_video_position (boost::shared_ptr<DecodedVideo>);
boost::shared_ptr<const Film> _film;
boost::shared_ptr<const Playlist> _playlist;
bool _video;
bool _audio;
- bool _subtitles;
/** 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;
- /** Time of the earliest thing not yet to have been emitted */
- Time _position;
- Time _last_black;
- Time _last_silence;
+ /** The time after the last video that we emitted */
+ DCPTime _video_position;
+ /** The time after the last audio that we emitted */
+ DCPTime _audio_position;
+
+ AudioMerger _audio_merger;
+
+ dcp::Size _video_container_size;
+ boost::shared_ptr<PlayerImage> _black_frame;
+
+ struct {
+ boost::weak_ptr<Piece> piece;
+ boost::shared_ptr<DecodedImageSubtitle> subtitle;
+ } _image_subtitle;
+
+ struct {
+ boost::weak_ptr<Piece> piece;
+ boost::shared_ptr<DecodedTextSubtitle> subtitle;
+ } _text_subtitle;
+
+ struct {
+ Position<int> position;
+ boost::shared_ptr<Image> image;
+ DCPTime from;
+ DCPTime to;
+ } _out_subtitle;
+
+#ifdef DCPOMATIC_DEBUG
+ boost::shared_ptr<Content> _last_video;
+#endif
+
+ bool _last_emit_was_black;
+
+ struct {
+ boost::weak_ptr<Piece> weak_piece;
+ boost::shared_ptr<DecodedVideo> video;
+ } _last_incoming_video;
+
+ bool _just_did_inaccurate_seek;
+ bool _approximate_size;
+
+ PlayerStatistics _statistics;
- /* XXX: position and last_video? Need both? */
- AudioBuffers _audio_buffers;
- Time _last_video;
- bool _last_was_black;
- Time _next_audio;
+ boost::signals2::scoped_connection _playlist_changed_connection;
+ boost::signals2::scoped_connection _playlist_content_changed_connection;
+ boost::signals2::scoped_connection _film_changed_connection;
};
#endif
projects / dcpomatic.git / blobdiff