/*
- 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
#ifndef DCPOMATIC_PLAYER_H
#define DCPOMATIC_PLAYER_H
-#include <list>
-#include <boost/shared_ptr.hpp>
-#include <boost/enable_shared_from_this.hpp>
#include "playlist.h"
#include "content.h"
#include "film.h"
#include "rect.h"
-#include "audio_merger.h"
#include "audio_content.h"
-#include "decoded.h"
+#include "dcpomatic_time.h"
+#include "content_subtitle.h"
+#include "position_image.h"
+#include "piece.h"
+#include "content_video.h"
+#include "player_subtitles.h"
+#include <boost/shared_ptr.hpp>
+#include <boost/enable_shared_from_this.hpp>
+#include <list>
class Job;
class Film;
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 Decoder;
+class Resampler;
+class PlayerVideo;
+class ImageProxy;
+
class PlayerStatistics
{
public:
, skip (0)
{}
- int64_t silence;
+ 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.
+ * @brief A class which can `play' a Playlist.
*/
-
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 ();
-
- bool pass ();
- void seek (DCPTime, bool);
-
- DCPTime video_position () const {
- return _video_position;
- }
+ std::list<boost::shared_ptr<PlayerVideo> > get_video (DCPTime time, bool accurate);
+ boost::shared_ptr<AudioBuffers> get_audio (DCPTime time, DCPTime length, bool accurate);
+ PlayerSubtitles get_subtitles (DCPTime time, DCPTime length, bool starting);
+ std::list<boost::shared_ptr<Font> > get_subtitle_fonts ();
void set_video_container_size (dcp::Size);
void set_approximate_size ();
-
- bool repeat_last_video ();
+ void set_ignore_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.
private:
friend class PlayerWrapper;
friend class Piece;
+ friend struct player_overlaps_test;
void setup_pieces ();
void playlist_changed ();
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 ();
+ std::list<PositionImage> transform_image_subtitles (std::list<ImageSubtitle>) const;
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>);
-
+ VideoFrame dcp_to_content_video (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ DCPTime content_video_to_dcp (boost::shared_ptr<const Piece> piece, VideoFrame f) const;
+ AudioFrame dcp_to_content_audio (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ ContentTime dcp_to_content_subtitle (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ boost::shared_ptr<PlayerVideo> black_player_video_frame (DCPTime) const;
+
+ /** @return Pieces of content type C that overlap a specified time range in the DCP */
+ template<class C>
+ std::list<boost::shared_ptr<Piece> >
+ overlaps (DCPTime from, DCPTime to)
+ {
+ if (!_have_valid_pieces) {
+ setup_pieces ();
+ }
+
+ std::list<boost::shared_ptr<Piece> > overlaps;
+ for (typename std::list<boost::shared_ptr<Piece> >::const_iterator i = _pieces.begin(); i != _pieces.end(); ++i) {
+ if (!boost::dynamic_pointer_cast<C> ((*i)->content)) {
+ continue;
+ }
+
+ if ((*i)->content->position() <= to && (*i)->content->end() >= from) {
+ overlaps.push_back (*i);
+ }
+ }
+
+ return overlaps;
+ }
+
boost::shared_ptr<const Film> _film;
boost::shared_ptr<const Playlist> _playlist;
-
- bool _video;
- bool _audio;
/** 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 */
- DCPTime _video_position;
- /** The time after the last audio that we emitted */
- DCPTime _audio_position;
-
- AudioMerger _audio_merger;
-
+ /** Size of the image in the DCP (e.g. 1990x1080 for flat) */
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;
+ boost::shared_ptr<Image> _black_image;
- bool _just_did_inaccurate_seek;
bool _approximate_size;
+ /** true if the player should ignore all video; i.e. never produce any */
+ bool _ignore_video;
PlayerStatistics _statistics;