/*
- 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 VideoContent> c)
- : _video_content (c)
+VideoDecoder::VideoDecoder (Decoder* parent, shared_ptr<const Content> c)
+ : DecoderPart (parent)
+ , _content (c)
{
}
-/** Called by subclasses when they have a video frame ready */
+/** 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, ContentTime time)
+VideoDecoder::emit (shared_ptr<const Film> film, shared_ptr<const ImageProxy> image, Frame frame)
{
- switch (_video_content->video_frame_type ()) {
+ if (ignore ()) {
+ return;
+ }
+
+ switch (_content->video->frame_type ()) {
case VIDEO_FRAME_TYPE_2D:
- _pending.push_back (shared_ptr<DecodedVideo> (new DecodedVideo (time, image, EYES_BOTH, same)));
+ Data (ContentVideo (image, frame, EYES_BOTH, PART_WHOLE));
break;
- case VIDEO_FRAME_TYPE_3D_LEFT_RIGHT:
+ case VIDEO_FRAME_TYPE_3D:
{
- int const half = image->size().width / 2;
- _pending.push_back (shared_ptr<DecodedVideo> (new DecodedVideo (time, image->crop (Crop (0, half, 0, 0), true), EYES_LEFT, same)));
- _pending.push_back (shared_ptr<DecodedVideo> (new DecodedVideo (time, image->crop (Crop (half, 0, 0, 0), true), EYES_RIGHT, same)));
+ /* We should receive the same frame index twice for 3D; hence we know which
+ frame this one is.
+ */
+ bool const same = (_last_emitted_frame && _last_emitted_frame.get() == frame);
+ if (!same && _last_emitted_eyes && *_last_emitted_eyes == EYES_LEFT) {
+ /* We just got a new frame index but the last frame was left-eye; it looks like
+ this content is not really 3D.
+ */
+ boost::throw_exception (
+ DecodeError(
+ String::compose(
+ _("The content file %1 is set as 3D but does not appear to contain 3D images. Please set it to 2D. "
+ "You can still make a 3D DCP from this content by ticking the 3D option in the DCP video tab."),
+ _content->path(0)
+ )
+ )
+ );
+ }
+ Eyes const eyes = same ? EYES_RIGHT : EYES_LEFT;
+ Data (ContentVideo (image, frame, eyes, PART_WHOLE));
+ _last_emitted_frame = frame;
+ _last_emitted_eyes = eyes;
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:
- {
- int const half = image->size().height / 2;
- _pending.push_back (shared_ptr<DecodedVideo> (new DecodedVideo (time, image->crop (Crop (0, 0, 0, half), true), EYES_LEFT, same)));
- _pending.push_back (shared_ptr<DecodedVideo> (new DecodedVideo (time, image->crop (Crop (0, 0, half, 0), true), EYES_RIGHT, same)));
+ 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:
- assert (false);
+ DCPOMATIC_ASSERT (false);
}
+
+ _position = ContentTime::from_frames (frame, _content->active_video_frame_rate(film));
+}
+
+void
+VideoDecoder::seek ()
+{
+ _position = ContentTime();
+ _last_emitted_frame.reset ();
+ _last_emitted_eyes.reset ();
}
projects / dcpomatic.git / blobdiff