/*
- 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/>.
*/
/** @file src/decoder.h
- * @brief Parent class for decoders of content.
+ * @brief Decoder class.
*/
-#ifndef DVDOMATIC_DECODER_H
-#define DVDOMATIC_DECODER_H
-
-#include <vector>
-#include <string>
-#include <stdint.h>
-#include <boost/shared_ptr.hpp>
-#include <boost/signals2.hpp>
-#include "util.h"
-#include "stream.h"
-#include "video_source.h"
-#include "audio_source.h"
-
-class Job;
-class Options;
-class Image;
-class Log;
-class DelayLine;
-class TimedSubtitle;
-class Subtitle;
-class Film;
-class FilterGraph;
+#ifndef DCPOMATIC_DECODER_H
+#define DCPOMATIC_DECODER_H
+
+#include "types.h"
+#include "film.h"
+#include "dcpomatic_time.h"
+#include <boost/utility.hpp>
+
+class Decoded;
+class VideoDecoder;
+class AudioDecoder;
+class TextDecoder;
+class DecoderPart;
/** @class Decoder.
* @brief Parent class for decoders of content.
- *
- * These classes can be instructed run through their content
- * (by calling ::go), and they emit signals when video or audio data is ready for something else
- * to process.
*/
-class Decoder : public VideoSource, public AudioSource
+class Decoder : public boost::noncopyable
{
public:
- Decoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *);
+ Decoder (boost::weak_ptr<const Film> film);
virtual ~Decoder () {}
- /* Methods to query our input video */
+ boost::shared_ptr<VideoDecoder> video;
+ boost::shared_ptr<AudioDecoder> audio;
+ std::list<boost::shared_ptr<TextDecoder> > text;
- /** @return video frames per second, or 0 if unknown */
- virtual float frames_per_second () const = 0;
- /** @return native size in pixels */
- virtual Size native_size () const = 0;
+ boost::shared_ptr<TextDecoder> only_text () const;
- 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;
-
+ /** Do some decoding and perhaps emit video, audio or subtitle data.
+ * @return true if this decoder will emit no more data unless a seek() happens.
+ */
virtual bool pass () = 0;
- void go ();
-
- SourceFrame video_frame () const {
- return _video_frame;
- }
-
- virtual void set_audio_stream (boost::optional<AudioStream>);
- virtual void set_subtitle_stream (boost::optional<SubtitleStream>);
+ virtual void seek (dcpomatic::ContentTime time, bool accurate);
- boost::optional<AudioStream> audio_stream () const {
- return _audio_stream;
- }
-
- boost::optional<SubtitleStream> subtitle_stream () const {
- return _subtitle_stream;
- }
-
- std::vector<AudioStream> audio_streams () const {
- return _audio_streams;
- }
-
- std::vector<SubtitleStream> subtitle_streams () const {
- return _subtitle_streams;
- }
+ dcpomatic::ContentTime position () const;
protected:
-
- virtual PixelFormat pixel_format () const = 0;
-
- void emit_video (boost::shared_ptr<Image>);
- void emit_subtitle (boost::shared_ptr<TimedSubtitle>);
- void repeat_last_video ();
-
- /** our Film */
- boost::shared_ptr<Film> _film;
- /** our options */
- boost::shared_ptr<const Options> _opt;
- /** associated Job, or 0 */
- Job* _job;
-
- boost::optional<AudioStream> _audio_stream;
- boost::optional<SubtitleStream> _subtitle_stream;
-
- std::vector<AudioStream> _audio_streams;
- std::vector<SubtitleStream> _subtitle_streams;
-
-private:
- void signal_video (boost::shared_ptr<Image>, boost::shared_ptr<Subtitle>);
+ boost::shared_ptr<const Film> film () const;
- SourceFrame _video_frame;
-
- boost::shared_ptr<TimedSubtitle> _timed_subtitle;
-
- boost::shared_ptr<Image> _last_image;
- boost::shared_ptr<Subtitle> _last_subtitle;
+private:
+ boost::weak_ptr<const Film> _film;
};
#endif