/*
- 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 "subtitle.h"
-#include "film.h"
#include "image.h"
+#include "raw_image_proxy.h"
+#include "film.h"
#include "log.h"
-#include "options.h"
-#include "job.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<Film> f, DecodeOptions o, Job* j)
- : Decoder (f, o, j)
- , _video_frame (0)
- , _last_source_time (0)
+VideoDecoder::VideoDecoder (Decoder* parent, shared_ptr<const Content> c, shared_ptr<Log> log)
+ : DecoderPart (parent, log)
+ , _content (c)
{
}
-/** Called by subclasses to tell the world that some video data is ready.
- * We find a subtitle then emit it for listeners.
- * @param image frame to emit.
- * @param t Time of the frame within the source, in seconds.
+/** 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::emit_video (shared_ptr<Image> image, double t)
+VideoDecoder::emit (shared_ptr<const ImageProxy> image, Frame frame)
{
- shared_ptr<Subtitle> sub;
- if (_timed_subtitle && _timed_subtitle->displayed_at (t)) {
- sub = _timed_subtitle->subtitle ();
+ if (ignore ()) {
+ return;
}
- signal_video (image, false, sub);
- _last_source_time = t;
-}
-
-void
-VideoDecoder::repeat_last_video ()
-{
- if (!_last_image) {
- _last_image.reset (new SimpleImage (pixel_format(), native_size(), true));
- _last_image->make_black ();
+ 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;
}
-
- signal_video (_last_image, true, _last_subtitle);
-}
-
-void
-VideoDecoder::signal_video (shared_ptr<Image> image, bool same, shared_ptr<Subtitle> sub)
-{
- TIMING ("Decoder emits %1", _video_frame);
- Video (image, same, sub);
- ++_video_frame;
-
- _last_image = image;
- _last_subtitle = sub;
-}
-
-void
-VideoDecoder::emit_subtitle (shared_ptr<TimedSubtitle> s)
-{
- _timed_subtitle = s;
-
- if (_timed_subtitle) {
- Position const p = _timed_subtitle->subtitle()->position ();
- _timed_subtitle->subtitle()->set_position (Position (p.x - _film->crop().left, p.y - _film->crop().top));
+ 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);
}
-}
-void
-VideoDecoder::set_subtitle_stream (shared_ptr<SubtitleStream> s)
-{
- _subtitle_stream = s;
+ _position = ContentTime::from_frames (frame, _content->active_video_frame_rate ());
}
void
-VideoDecoder::set_progress () const
+VideoDecoder::seek ()
{
- if (_job && _film->length()) {
- _job->set_progress (float (_video_frame) / _film->length().get());
- }
+ _position = ContentTime();
+ _last_emitted.reset ();
}