Fix mis-merge.

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

diff --git a/src/lib/video_decoder.cc b/src/lib/video_decoder.cc
index 457cfe47b1e3de06671b646d7ddaf48926c2f1c8..813320eb86f89ecd5518a315df121a9011500411 100644 (file)
--- a/src/lib/video_decoder.cc
+++ b/src/lib/video_decoder.cc
@@ -1,41 +1,106 @@
 /*
-    Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2012-2018 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/>.
 
 */
 
 #include "video_decoder.h"
 #include "image.h"
+#include "raw_image_proxy.h"
+#include "film.h"
+#include "log.h"
+#include "compose.hpp"
+#include <boost/foreach.hpp>
+#include <iostream>
 
 #include "i18n.h"
 
 using std::cout;
+using std::list;
+using std::max;
+using std::back_inserter;
 using boost::shared_ptr;
+using boost::optional;
 
-VideoDecoder::VideoDecoder (shared_ptr<const Film> f)
-       : Decoder (f)
-       , _video_position (0)
+VideoDecoder::VideoDecoder (Decoder* parent, shared_ptr<const Content> c)
+       : DecoderPart (parent)
+       , _content (c)
 {
 
 }
 
+/** Called by decoder classes when they have a video frame ready.
+ *  @param frame Frame index within the content; this does not take into account 3D
+ *  so for 3D_ALTERNATE this value goes:
+ *     0: frame 0 left
+ *     1: frame 0 right
+ *     2: frame 1 left
+ *     3: frame 1 right
+ *  and so on.
+ */
 void
-VideoDecoder::video (shared_ptr<const Image> image, bool same, VideoContent::Frame frame)
+VideoDecoder::emit (shared_ptr<const Film> film, shared_ptr<const ImageProxy> image, Frame frame)
 {
-        Video (image, same, frame);
-       _video_position = frame + 1;
+       if (ignore ()) {
+               return;
+       }
+
+       switch (_content->video->frame_type ()) {
+       case VIDEO_FRAME_TYPE_2D:
+               Data (ContentVideo (image, frame, EYES_BOTH, PART_WHOLE));
+               break;
+       case VIDEO_FRAME_TYPE_3D:
+       {
+               /* We receive the same frame index twice for 3D; hence we know which
+                  frame this one is.
+               */
+               bool const same = (_last_emitted && _last_emitted.get() == frame);
+               Data (ContentVideo (image, frame, same ? EYES_RIGHT : EYES_LEFT, PART_WHOLE));
+               _last_emitted = frame;
+               break;
+       }
+       case VIDEO_FRAME_TYPE_3D_ALTERNATE:
+               Data (ContentVideo (image, frame / 2, (frame % 2) ? EYES_RIGHT : EYES_LEFT, PART_WHOLE));
+               frame /= 2;
+               break;
+       case VIDEO_FRAME_TYPE_3D_LEFT_RIGHT:
+               Data (ContentVideo (image, frame, EYES_LEFT, PART_LEFT_HALF));
+               Data (ContentVideo (image, frame, EYES_RIGHT, PART_RIGHT_HALF));
+               break;
+       case VIDEO_FRAME_TYPE_3D_TOP_BOTTOM:
+               Data (ContentVideo (image, frame, EYES_LEFT, PART_TOP_HALF));
+               Data (ContentVideo (image, frame, EYES_RIGHT, PART_BOTTOM_HALF));
+               break;
+       case VIDEO_FRAME_TYPE_3D_LEFT:
+               Data (ContentVideo (image, frame, EYES_LEFT, PART_WHOLE));
+               break;
+       case VIDEO_FRAME_TYPE_3D_RIGHT:
+               Data (ContentVideo (image, frame, EYES_RIGHT, PART_WHOLE));
+               break;
+       default:
+               DCPOMATIC_ASSERT (false);
+       }
+
+       _position = ContentTime::from_frames (frame, _content->active_video_frame_rate(film));
 }
 
+void
+VideoDecoder::seek ()
+{
+       _position = ContentTime();
+       _last_emitted.reset ();
+}