/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2021 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 DCPOMATIC_DECODER_H
#define DCPOMATIC_DECODER_H
-#include <vector>
-#include <string>
-#include <stdint.h>
-#include <boost/shared_ptr.hpp>
-#include <boost/signals2.hpp>
-#include "util.h"
-#include "video_source.h"
-#include "audio_source.h"
+
+#include "dcpomatic_time.h"
#include "film.h"
+#include "types.h"
+#include "weak_film.h"
+#include <boost/utility.hpp>
+
+
+class AtmosDecoder;
+class AudioDecoder;
+class Decoded;
+class DecoderPart;
+class TextDecoder;
+class VideoDecoder;
-class Image;
-class Log;
-class DelayLine;
-class TimedSubtitle;
-class Subtitle;
-class FilterGraph;
/** @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
+class Decoder : public WeakConstFilm
{
public:
- Decoder (boost::shared_ptr<const Film>);
+ Decoder (std::weak_ptr<const Film> film);
virtual ~Decoder () {}
- virtual bool pass () = 0;
- virtual bool seek (double);
- virtual bool seek_back () {
- return true;
- }
- virtual bool seek_forward () {
- return true;
- }
+ Decoder (Decoder const&) = delete;
+ Decoder& operator= (Decoder const&) = delete;
- boost::signals2::signal<void()> OutputChanged;
+ std::shared_ptr<VideoDecoder> video;
+ std::shared_ptr<AudioDecoder> audio;
+ std::list<std::shared_ptr<TextDecoder>> text;
+ std::shared_ptr<AtmosDecoder> atmos;
-protected:
- boost::shared_ptr<const Film> _film;
+ std::shared_ptr<TextDecoder> only_text () const;
-private:
- virtual void film_changed (Film::Property) {}
+ /** 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;
+ virtual void seek (dcpomatic::ContentTime time, bool accurate);
- boost::signals2::scoped_connection _film_connection;
+ virtual dcpomatic::ContentTime position () const;
};
+
#endif