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/*
Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
This program 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,
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.
*/
/** @file src/decoder.h
* @brief Parent class for decoders of content.
*/
#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"
#include "film.h"
#include "options.h"
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
{
public:
Decoder (boost::shared_ptr<Film>, DecodeOptions);
virtual ~Decoder () {}
virtual bool pass () = 0;
virtual bool seek (double);
virtual bool seek_to_last ();
boost::signals2::signal<void()> OutputChanged;
protected:
/** our Film */
boost::shared_ptr<Film> _film;
/** our decode options */
DecodeOptions _opt;
private:
virtual void film_changed (Film::Property) {}
boost::signals2::scoped_connection _film_connection;
};
#endif
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