/*
- Copyright (C) 2012-2013 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2016 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 <boost/shared_ptr.hpp>
-#include <boost/weak_ptr.hpp>
-#include <boost/utility.hpp>
#include "types.h"
#include "dcpomatic_time.h"
+#include <boost/utility.hpp>
class Decoded;
+class VideoDecoder;
+class AudioDecoder;
+class SubtitleDecoder;
+class DecoderPart;
/** @class Decoder.
* @brief Parent class for decoders of content.
class Decoder : public boost::noncopyable
{
public:
- Decoder ();
virtual ~Decoder () {}
- /** Seek so that the next peek() will yield the next thing
- * (video/sound frame, subtitle etc.) at or after the requested
- * time. Pass accurate = true to try harder to get close to
- * the request.
- */
- virtual void seek (ContentTime time, bool accurate);
-
- boost::shared_ptr<Decoded> peek ();
+ boost::shared_ptr<VideoDecoder> video;
+ boost::shared_ptr<AudioDecoder> audio;
+ boost::shared_ptr<SubtitleDecoder> subtitle;
- /* Consume the last peek()ed thing so that it won't be returned
- * from the next peek().
- */
- void consume ();
-
-protected:
-
- /** Perform one decode pass of the content, which may or may not
- * result in a complete quantum (Decoded object) of decoded stuff
- * being added to _pending.
- * @return true if the decoder is done (i.e. no more data will be
- * produced by any future calls to pass() without a seek() first).
+ /** 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 flush () {};
-
- std::list<boost::shared_ptr<Decoded> > _pending;
- bool _done;
+ virtual void seek (ContentTime time, bool accurate);
+
+ ContentTime position () const;
};
#endif