It builds.
[dcpomatic.git] / src / lib / player.h
index 6860807b3deb72c7d1cf5866a2bac44e232cb68f..be5cbddb4a15d051f6793ba4cbf0992d65248128 100644 (file)
 #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"
 
 class Job;
 class Film;
@@ -37,29 +38,8 @@ 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 DCPVideo;
+class Decoder;
 
 class PlayerStatistics
 {
@@ -92,45 +72,40 @@ public:
 
        void dump (boost::shared_ptr<Log>) const;
 };
+
+class Piece
+{
+public:
+       Piece (boost::shared_ptr<Content> c, boost::shared_ptr<Decoder> d, FrameRateChange f)
+               : content (c)
+               , decoder (d)
+               , frc (f)
+       {}
+
+       boost::shared_ptr<Content> content;
+       boost::shared_ptr<Decoder> decoder;
+       FrameRateChange frc;
+};
+
 /** @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;
-       }
+       boost::shared_ptr<DCPVideo> get_video (DCPTime time, bool accurate);
+       boost::shared_ptr<AudioBuffers> get_audio (DCPTime time, DCPTime length, bool accurate);
 
        void set_video_container_size (dcp::Size);
        void set_approximate_size ();
-
-       bool repeat_last_video ();
+       void set_burn_subtitles (bool burn) {
+               _burn_subtitles = burn;
+       }
 
        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.
@@ -146,67 +121,43 @@ private:
        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> process_content_image_subtitles (
+               boost::shared_ptr<SubtitleContent>, std::list<boost::shared_ptr<ContentImageSubtitle> >
+               );
+       std::list<PositionImage> process_content_text_subtitles (std::list<boost::shared_ptr<ContentTextSubtitle> >);
        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;
+       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;
+
+       template<class C>
+       std::list<boost::shared_ptr<Piece> >
+       overlaps (DCPTime t)
+       {
+               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) && (*i)->content->position() >= t && (*i)->content->end() < t) {
+                               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;
-
        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;
+       bool _burn_subtitles;
 
        PlayerStatistics _statistics;