X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Fvideo_decoder.h;h=9d69f743a33d6c08d3efae5af36329a4278cb709;hb=38e89b25f6042d7a9dc023bbdeff98b09cbdd26f;hp=42add42aacc547c3be5e2bced87882dfdacecd0b;hpb=9e758fddfb8bbadb1fc84e393daa815445d5e9d5;p=dcpomatic.git

diff --git a/src/lib/video_decoder.h b/src/lib/video_decoder.h
index 42add42aa..9d69f743a 100644
--- a/src/lib/video_decoder.h
+++ b/src/lib/video_decoder.h
@@ -1,61 +1,77 @@
 /*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2021 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/>.
 
 */
 
+
+/** @file  src/lib/video_decoder.h
+ *  @brief VideoDecoder class.
+ */
+
+
 #ifndef DCPOMATIC_VIDEO_DECODER_H
 #define DCPOMATIC_VIDEO_DECODER_H
 
-#include <boost/signals2.hpp>
-#include <boost/shared_ptr.hpp>
+
 #include "decoder.h"
 #include "video_content.h"
 #include "util.h"
+#include "content_video.h"
+#include "decoder_part.h"
+#include <boost/signals2.hpp>
+
 
 class VideoContent;
 class ImageProxy;
+class Image;
+class Log;
+class FrameIntervalChecker;
 
-class VideoDecoder : public virtual Decoder
+
+/** @class VideoDecoder
+ *  @brief Parent for classes which decode video.
+ */
+class VideoDecoder : public DecoderPart
 {
 public:
-	VideoDecoder (boost::shared_ptr<const Film>, boost::shared_ptr<const VideoContent>);
-
-	/** Seek so that the next pass() will yield (approximately) the requested frame.
-	 *  Pass accurate = true to try harder to get close to the request.
-	 */
-	virtual void seek (VideoContent::Frame frame, bool accurate) = 0;
-
-	/** Emitted when a video frame is ready.
-	 *  First parameter is the video image.
-	 *  Second parameter is the eye(s) which should see this image.
-	 *  Third parameter is the part of this image that should be used.
-	 *  Fourth parameter is true if the image is the same as the last one that was emitted for this Eyes value.
-	 *  Fourth parameter is the frame within our source.
-	 */
-	boost::signals2::signal<void (boost::shared_ptr<const ImageProxy>, Eyes, Part, bool, VideoContent::Frame)> Video;
-	
-protected:
-
-	void video (boost::shared_ptr<const ImageProxy>, bool, VideoContent::Frame);
-	boost::shared_ptr<const VideoContent> _video_content;
-	/** This is in frames without taking 3D into account (e.g. if we are doing 3D alternate,
-	 *  this would equal 2 on the left-eye second frame (not 1)).
-	 */
-	VideoContent::Frame _video_position;
+	VideoDecoder (Decoder* parent, std::shared_ptr<const Content> c);
+
+	friend struct video_decoder_fill_test1;
+	friend struct video_decoder_fill_test2;
+	friend struct ffmpeg_pts_offset_test;
+	friend void ffmpeg_decoder_sequential_test_one (boost::filesystem::path file, float fps, int gaps, int video_length);
+
+	boost::optional<dcpomatic::ContentTime> position (std::shared_ptr<const Film>) const {
+		return _position;
+	}
+
+	void seek ();
+	void emit (std::shared_ptr<const Film> film, std::shared_ptr<const ImageProxy>, Frame frame);
+
+	boost::signals2::signal<void (ContentVideo)> Data;
+
+private:
+	std::shared_ptr<const Content> _content;
+	/** Eyes of last thing to be emitted; only used for THREE_D_ALTERNATE */
+	boost::optional<Eyes> _last_emitted_eyes;
+	boost::optional<dcpomatic::ContentTime> _position;
+	boost::scoped_ptr<FrameIntervalChecker> _frame_interval_checker;
 };
 
+
 #endif