/*
- 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/>.
*/
-#ifndef DVDOMATIC_VIDEO_DECODER_H
-#define DVDOMATIC_VIDEO_DECODER_H
+/** @file src/lib/video_decoder.h
+ * @brief VideoDecoder class.
+ */
-#include "video_source.h"
-#include "stream.h"
-#include "decoder.h"
+#ifndef DCPOMATIC_VIDEO_DECODER_H
+#define DCPOMATIC_VIDEO_DECODER_H
-class VideoDecoder : public TimedVideoSource, public virtual Decoder
+#include "decoder.h"
+#include "video_content.h"
+#include "util.h"
+#include "content_video.h"
+#include "decoder_part.h"
+#include <boost/signals2.hpp>
+#include <boost/shared_ptr.hpp>
+
+class VideoContent;
+class ImageProxy;
+class Image;
+class Log;
+
+/** @class VideoDecoder
+ * @brief Parent for classes which decode video.
+ */
+class VideoDecoder : public DecoderPart
{
public:
- VideoDecoder (boost::shared_ptr<Film>, DecodeOptions);
-
- /** @return video frames per second, or 0 if unknown */
- virtual float frames_per_second () const = 0;
- /** @return native size in pixels */
- virtual libdcp::Size native_size () const = 0;
- /** @return length (in source video frames), according to our content's header */
- virtual SourceFrame 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;
-
- virtual void set_subtitle_stream (boost::shared_ptr<SubtitleStream>);
-
- void set_progress (Job *) const;
-
- int video_frame () const {
- return _video_frame;
- }
+ VideoDecoder (Decoder* parent, boost::shared_ptr<const Content> c);
- boost::shared_ptr<SubtitleStream> subtitle_stream () const {
- return _subtitle_stream;
- }
-
- std::vector<boost::shared_ptr<SubtitleStream> > subtitle_streams () const {
- return _subtitle_streams;
- }
+ 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);
- double last_source_time () const {
- return _last_source_time;
+ dcpomatic::ContentTime position (boost::shared_ptr<const Film>) const {
+ return _position;
}
-protected:
-
- virtual PixelFormat pixel_format () const = 0;
-
- void emit_video (boost::shared_ptr<Image>, bool, double);
- void emit_subtitle (boost::shared_ptr<TimedSubtitle>);
+ void seek ();
+ void emit (boost::shared_ptr<const Film> film, boost::shared_ptr<const ImageProxy>, Frame frame);
- /** Subtitle stream to use when decoding */
- boost::shared_ptr<SubtitleStream> _subtitle_stream;
- /** Subtitle streams that this decoder's content has */
- std::vector<boost::shared_ptr<SubtitleStream> > _subtitle_streams;
+ /** @return true if the emitted data was accepted, false if not */
+ boost::signals2::signal<void (ContentVideo)> Data;
private:
- int _video_frame;
- double _last_source_time;
-
- boost::shared_ptr<TimedSubtitle> _timed_subtitle;
+ /** Time of last thing to be emitted */
+ boost::shared_ptr<const Content> _content;
+ boost::optional<Frame> _last_emitted;
+ dcpomatic::ContentTime _position;
};
#endif