Reasonably straightforward stuff; main things are adding

[dcpomatic.git] / src / lib / video_decoder.h

diff --git a/src/lib/video_decoder.h b/src/lib/video_decoder.h
index c04874342c07846f81d69ad9f02797165b3977b3..c787faa0413e4181c8206aa35fad5123e6e54e16 100644 (file)
--- a/src/lib/video_decoder.h
+++ b/src/lib/video_decoder.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2015 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
@@ -17,60 +17,67 @@
 
 */
 
-#ifndef DVDOMATIC_VIDEO_DECODER_H
-#define DVDOMATIC_VIDEO_DECODER_H
+/** @file  src/lib/video_decoder.h
+ *  @brief VideoDecoder class.
+ */
+
+#ifndef DCPOMATIC_VIDEO_DECODER_H
+#define DCPOMATIC_VIDEO_DECODER_H
 
-#include "video_source.h"
 #include "decoder.h"
+#include "video_content.h"
+#include "util.h"
+#include "content_video.h"
+#include <boost/signals2.hpp>
+#include <boost/shared_ptr.hpp>
 
 class VideoContent;
-
-class VideoDecoder : public VideoSource, public virtual Decoder
+class ImageProxy;
+class Image;
+class Log;
+
+/** @class VideoDecoder
+ *  @brief Parent for classes which decode video.
+ */
+class VideoDecoder : public virtual Decoder
 {
 public:
-       VideoDecoder (boost::shared_ptr<const Film>);
-
-       /** @return video frame rate second, or 0 if unknown */
-       virtual float video_frame_rate () const = 0;
-       /** @return native size in pixels */
-       virtual libdcp::Size native_size () const = 0;
-       /** @return length according to our content's header */
-       virtual ContentVideoFrame video_length () const = 0;
-
-       virtual int time_base_numerator () const = 0;
-       virtual int time_base_denominator () const = 0;
-       virtual int sample_aspect_ratio_numerator () const = 0;
-       virtual int sample_aspect_ratio_denominator () const = 0;
-
-       void set_progress (Job *) const;
-       
-       int video_frame () const {
-               return _video_frame;
-       }
+       VideoDecoder (boost::shared_ptr<const VideoContent> c, boost::shared_ptr<Log> log);
 
-       double last_source_time () const {
-               return _last_source_time;
-       }
+       std::list<ContentVideo> get_video (Frame frame, bool accurate);
 
-protected:
-       
-       virtual PixelFormat pixel_format () const = 0;
-
-       void emit_video (boost::shared_ptr<Image>, double);
-       void emit_subtitle (boost::shared_ptr<TimedSubtitle>);
-       bool have_last_video () const;
-       void repeat_last_video (double);
+       boost::shared_ptr<const VideoContent> video_content () const {
+               return _video_content;
+       }
 
-private:
-       void signal_video (boost::shared_ptr<Image>, bool, boost::shared_ptr<Subtitle>, double);
+       void set_ignore_video ();
 
-       int _video_frame;
-       double _last_source_time;
-       
-       boost::shared_ptr<TimedSubtitle> _timed_subtitle;
+#ifdef DCPOMATIC_DEBUG
+       int test_gaps;
+#endif
 
-       boost::shared_ptr<Image> _last_image;
-       boost::shared_ptr<Subtitle> _last_subtitle;
+protected:
+       friend struct video_decoder_fill_test1;
+       friend struct video_decoder_fill_test2;
+
+       void seek (ContentTime time, bool accurate);
+       void video (boost::shared_ptr<const ImageProxy>, Frame frame);
+       std::list<ContentVideo> decoded_video (Frame frame);
+       void fill_one_eye (Frame from, Frame to, Eyes);
+       void fill_both_eyes (Frame from, Frame to, Eyes);
+
+       boost::shared_ptr<const VideoContent> _video_content;
+       boost::shared_ptr<Log> _log;
+       std::list<ContentVideo> _decoded_video;
+       boost::shared_ptr<Image> _black_image;
+       boost::optional<ContentTime> _last_seek_time;
+       bool _last_seek_accurate;
+       /** true if this decoder should ignore all video; i.e. never produce any */
+       bool _ignore_video;
+       /** if set, this is a frame for which we got no data because the Decoder said
+        *  it has no more to give.
+        */
+       boost::optional<Frame> _no_data_frame;
 };
 
 #endif