Merge 1.0-seek and subtitle-content.
[dcpomatic.git] / src / lib / player.h
index 5f7c2e3694217749d0b7846da747b61bb3c061f7..377e8bd18e5ae3634d4faa0848f19fbcee088082 100644 (file)
 #include <list>
 #include <boost/shared_ptr.hpp>
 #include <boost/enable_shared_from_this.hpp>
+#include <libdcp/subtitle_asset.h>
 #include "playlist.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;
@@ -36,23 +38,66 @@ class Playlist;
 class AudioContent;
 class Piece;
 class Image;
-class Resampler;
 
-/** @class Player
- *  @brief A class which can `play' a Playlist; emitting its audio and video.
+/** @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, libdcp::Size, libdcp::Size, Scaler const *);
+
+       void set_subtitle (boost::shared_ptr<const Image>, Position<int>);
+       
+       boost::shared_ptr<Image> image (AVPixelFormat, bool);
 
-struct IncomingVideo
+private:
+       boost::shared_ptr<const Image> _in;
+       Crop _crop;
+       libdcp::Size _inter_size;
+       libdcp::Size _out_size;
+       Scaler const * _scaler;
+       boost::shared_ptr<const Image> _subtitle_image;
+       Position<int> _subtitle_position;
+};
+
+class PlayerStatistics
 {
 public:
-       boost::weak_ptr<Piece> weak_piece;
-       boost::shared_ptr<const Image> image;
-       Eyes eyes;
-       bool same;
-       VideoContent::Frame frame;
-       Time extra;
+       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)
+               {}
+               
+               int64_t 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 boost::enable_shared_from_this<Player>, public boost::noncopyable
 {
 public:
@@ -62,16 +107,19 @@ public:
        void disable_audio ();
 
        bool pass ();
-       void seek (Time, bool);
+       void seek (DCPTime, bool);
 
-       Time video_position () const {
+       DCPTime video_position () const {
                return _video_position;
        }
 
        void set_video_container_size (libdcp::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.
@@ -79,10 +127,10 @@ public:
         *  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<const Image>, Eyes, ColourConversion, bool, Time)> Video;
+       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>, Time)> Audio;
+       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
@@ -96,19 +144,19 @@ private:
        friend class PlayerWrapper;
        friend class Piece;
 
-       void process_video (boost::weak_ptr<Piece>, boost::shared_ptr<const Image>, Eyes, bool, VideoContent::Frame, Time);
-       void process_audio (boost::weak_ptr<Piece>, boost::shared_ptr<const AudioBuffers>, AudioContent::Frame);
-       void process_subtitle (boost::weak_ptr<Piece>, boost::shared_ptr<Image>, dcpomatic::Rect<double>, Time, Time);
        void setup_pieces ();
        void playlist_changed ();
        void content_changed (boost::weak_ptr<Content>, int, bool);
-       void do_seek (Time, bool);
+       void do_seek (DCPTime, bool);
        void flush ();
        void emit_black ();
-       void emit_silence (OutputAudioFrame);
-       boost::shared_ptr<Resampler> resampler (boost::shared_ptr<AudioContent>, bool);
+       void emit_silence (AudioFrame);
        void film_changed (Film::Property);
-       void update_subtitle ();
+       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;
@@ -121,29 +169,30 @@ private:
        std::list<boost::shared_ptr<Piece> > _pieces;
 
        /** The time after the last video that we emitted */
-       Time _video_position;
+       DCPTime _video_position;
        /** The time after the last audio that we emitted */
-       Time _audio_position;
+       DCPTime _audio_position;
 
-       AudioMerger<Time, AudioContent::Frame> _audio_merger;
+       AudioMerger<DCPTime, AudioFrame> _audio_merger;
 
        libdcp::Size _video_container_size;
-       boost::shared_ptr<Image> _black_frame;
-       std::map<boost::shared_ptr<AudioContent>, boost::shared_ptr<Resampler> > _resamplers;
+       boost::shared_ptr<PlayerImage> _black_frame;
 
        struct {
                boost::weak_ptr<Piece> piece;
-               boost::shared_ptr<Image> image;
-               dcpomatic::Rect<double> rect;
-               Time from;
-               Time to;
-       } _in_subtitle;
+               boost::shared_ptr<DecodedImageSubtitle> subtitle;
+       } _image_subtitle;
 
        struct {
-               boost::shared_ptr<Image> image;
+               boost::weak_ptr<Piece> piece;
+               boost::shared_ptr<DecodedTextSubtitle> subtitle;
+       } _text_subtitle;
+       
+       struct {
                Position<int> position;
-               Time from;
-               Time to;
+               boost::shared_ptr<Image> image;
+               DCPTime from;
+               DCPTime to;
        } _out_subtitle;
 
 #ifdef DCPOMATIC_DEBUG
@@ -152,7 +201,15 @@ private:
 
        bool _last_emit_was_black;
 
-       IncomingVideo _last_incoming_video;
+       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;
 
        boost::signals2::scoped_connection _playlist_changed_connection;
        boost::signals2::scoped_connection _playlist_content_changed_connection;