/*
- Copyright (C) 2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2013-2018 Carl Hetherington <cth@carlh.net>
- This program is free software; you can redistribute it and/or modify
+ This file is part of DCP-o-matic.
+
+ DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
- This program is distributed in the hope that it will be useful,
+ DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef DCPOMATIC_PLAYER_H
#define DCPOMATIC_PLAYER_H
-#include <list>
+#include "player_subtitles.h"
+#include "active_subtitles.h"
+#include "film.h"
+#include "content.h"
+#include "position_image.h"
+#include "piece.h"
+#include "content_video.h"
+#include "content_audio.h"
+#include "content_subtitle.h"
+#include "audio_stream.h"
+#include "audio_merger.h"
+#include "empty.h"
#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"
-
-class VideoDecoder;
-class AudioDecoder;
-class Job;
-class Film;
+#include <list>
+
+namespace dcp {
+ class ReelAsset;
+}
+
+class PlayerVideo;
class Playlist;
-class AudioContent;
+class Font;
+class AudioBuffers;
+class ReferencedReelAsset;
+class Shuffler;
+
+class PlayerProperty
+{
+public:
+ static int const VIDEO_CONTAINER_SIZE;
+ static int const PLAYLIST;
+ static int const FILM_CONTAINER;
+ static int const FILM_VIDEO_FRAME_RATE;
+ static int const DCP_DECODE_REDUCTION;
+};
/** @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 TimedVideoSource, public TimedAudioSource, public TimedVideoSink, 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 ();
+ Player (boost::shared_ptr<const Film>, boost::shared_ptr<const Playlist> playlist);
+ ~Player ();
bool pass ();
- void set_progress (boost::shared_ptr<Job>);
- bool seek (double);
- void seek_back ();
- void seek_forward ();
-
- double last_video_time () const;
+ void seek (DCPTime time, bool accurate);
+
+ std::list<boost::shared_ptr<Font> > get_subtitle_fonts ();
+ std::list<ReferencedReelAsset> get_reel_assets ();
+ dcp::Size video_container_size () const {
+ return _video_container_size;
+ }
+
+ void set_video_container_size (dcp::Size);
+ void set_ignore_video ();
+ void set_ignore_subtitle ();
+ void set_always_burn_subtitles (bool burn);
+ void set_fast ();
+ void set_play_referenced ();
+ void set_dcp_decode_reduction (boost::optional<int> reduction);
+
+ /** 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 first parameter is what changed.
+ * The second parameter is true if these signals are currently likely to be frequent.
+ */
+ boost::signals2::signal<void (int, bool)> Changed;
+
+ /** Emitted when a video frame is ready. These emissions happen in the correct order. */
+ boost::signals2::signal<void (boost::shared_ptr<PlayerVideo>, DCPTime)> Video;
+ boost::signals2::signal<void (boost::shared_ptr<AudioBuffers>, DCPTime)> Audio;
+ /** Emitted when a subtitle is ready. This signal may be emitted considerably
+ * after the corresponding Video.
+ */
+ boost::signals2::signal<void (PlayerSubtitles, DCPTimePeriod)> Subtitle;
private:
- void process_video (boost::shared_ptr<const Image> i, bool same, boost::shared_ptr<Subtitle> s, double);
- void process_audio (boost::weak_ptr<const AudioContent>, boost::shared_ptr<const AudioBuffers>, double);
- void setup_decoders ();
+ friend class PlayerWrapper;
+ friend class Piece;
+ friend struct player_time_calculation_test1;
+ friend struct player_time_calculation_test2;
+ friend struct player_time_calculation_test3;
+ friend struct player_subframe_test;
+
+ void setup_pieces ();
+ void flush ();
+ void film_changed (Film::Property);
void playlist_changed ();
- void content_changed (boost::weak_ptr<Content>, int);
+ void playlist_content_changed (boost::weak_ptr<Content>, int, bool);
+ std::list<PositionImage> transform_image_subtitles (std::list<ImageSubtitle>) const;
+ Frame dcp_to_content_video (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ DCPTime content_video_to_dcp (boost::shared_ptr<const Piece> piece, Frame f) const;
+ Frame dcp_to_resampled_audio (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ DCPTime resampled_audio_to_dcp (boost::shared_ptr<const Piece> piece, Frame f) const;
+ ContentTime dcp_to_content_time (boost::shared_ptr<const Piece> piece, DCPTime t) const;
+ DCPTime content_time_to_dcp (boost::shared_ptr<const Piece> piece, ContentTime t) const;
+ boost::shared_ptr<PlayerVideo> black_player_video_frame (Eyes eyes) const;
+ void video (boost::weak_ptr<Piece>, ContentVideo);
+ void audio (boost::weak_ptr<Piece>, AudioStreamPtr, ContentAudio);
+ void image_subtitle_start (boost::weak_ptr<Piece>, ContentImageSubtitle);
+ void text_subtitle_start (boost::weak_ptr<Piece>, ContentTextSubtitle);
+ void subtitle_stop (boost::weak_ptr<Piece>, ContentTime);
+ DCPTime one_video_frame () const;
+ void fill_audio (DCPTimePeriod period);
+ std::pair<boost::shared_ptr<AudioBuffers>, DCPTime> discard_audio (
+ boost::shared_ptr<const AudioBuffers> audio, DCPTime time, DCPTime discard_to
+ ) const;
+ boost::optional<PositionImage> subtitles_for_frame (DCPTime time) const;
+ void emit_video (boost::shared_ptr<PlayerVideo> pv, DCPTime time);
+ void do_emit_video (boost::shared_ptr<PlayerVideo> pv, DCPTime time);
+ void emit_audio (boost::shared_ptr<AudioBuffers> data, DCPTime time);
boost::shared_ptr<const Film> _film;
boost::shared_ptr<const Playlist> _playlist;
-
- bool _video;
- bool _audio;
- bool _subtitles;
-
- /** Our decoders are ready to go; if this is false the decoders must be (re-)created before they are used */
- bool _have_valid_decoders;
- /** Video decoders in order of presentation */
- std::vector<boost::shared_ptr<VideoDecoder> > _video_decoders;
- /** Start positions of each video decoder in seconds*/
- std::vector<double> _video_start;
- /** Index of current video decoder */
- size_t _video_decoder;
- /** Audio decoders in order of presentation (if they are from FFmpeg) */
- std::vector<boost::shared_ptr<AudioDecoder> > _audio_decoders;
- /** Start positions of each audio decoder (if they are from FFmpeg) in seconds */
- std::vector<double> _audio_start;
- /** Current audio decoder index if we are running them sequentially; otherwise undefined */
- size_t _sequential_audio_decoder;
-
- boost::shared_ptr<AudioBuffers> _audio_buffers;
- boost::optional<double> _audio_time;
+
+ /** 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;
+
+ /** Size of the image in the DCP (e.g. 1990x1080 for flat) */
+ dcp::Size _video_container_size;
+ boost::shared_ptr<Image> _black_image;
+
+ /** true if the player should ignore all video; i.e. never produce any */
+ bool _ignore_video;
+ /** true if the player should ignore all audio; i.e. never produce any */
+ bool _ignore_subtitle;
+ /** true if the player should always burn subtitles into the video regardless
+ of content settings
+ */
+ bool _always_burn_subtitles;
+ /** true if we should try to be fast rather than high quality */
+ bool _fast;
+ /** true if we should `play' (i.e output) referenced DCP data (e.g. for preview) */
+ bool _play_referenced;
+
+ /** Time just after the last video frame we emitted, or the time of the last accurate seek */
+ boost::optional<DCPTime> _last_video_time;
+ boost::optional<Eyes> _last_video_eyes;
+ /** Time just after the last audio frame we emitted, or the time of the last accurate seek */
+ boost::optional<DCPTime> _last_audio_time;
+
+ boost::optional<int> _dcp_decode_reduction;
+
+ typedef std::map<boost::weak_ptr<Piece>, boost::shared_ptr<PlayerVideo> > LastVideoMap;
+ LastVideoMap _last_video;
+
+ AudioMerger _audio_merger;
+ Shuffler* _shuffler;
+ std::list<std::pair<boost::shared_ptr<PlayerVideo>, DCPTime> > _delay;
+
+ class StreamState
+ {
+ public:
+ StreamState () {}
+
+ StreamState (boost::shared_ptr<Piece> p, DCPTime l)
+ : piece(p)
+ , last_push_end(l)
+ {}
+
+ boost::shared_ptr<Piece> piece;
+ DCPTime last_push_end;
+ };
+ std::map<AudioStreamPtr, StreamState> _stream_states;
+
+ Empty _black;
+ Empty _silent;
+
+ ActiveSubtitles _active_subtitles;
+ boost::shared_ptr<AudioProcessor> _audio_processor;
+
+ boost::signals2::scoped_connection _film_changed_connection;
+ boost::signals2::scoped_connection _playlist_changed_connection;
+ boost::signals2::scoped_connection _playlist_content_changed_connection;
};
#endif
projects / dcpomatic.git / blobdiff