/*
- Copyright (C) 2012-2016 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2017 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
#include "audio_stream.h"
#include "decoder_part.h"
#include <boost/enable_shared_from_this.hpp>
+#include <boost/signals2.hpp>
class AudioBuffers;
class AudioContent;
class AudioDecoder : public boost::enable_shared_from_this<AudioDecoder>, public DecoderPart
{
public:
- AudioDecoder (Decoder* parent, boost::shared_ptr<const AudioContent>, boost::shared_ptr<Log> log);
+ AudioDecoder (Decoder* parent, boost::shared_ptr<const AudioContent> content, boost::shared_ptr<Log> log);
- /** Try to fetch some audio from a specific place in this content.
- * @param frame Frame to start from (after resampling, if applicable)
- * @param length Frames to get (after resampling, if applicable)
- * @param accurate true to try hard to return frames from exactly `frame', false if we don't mind nearby frames.
- * @return Time-stamped audio data which may or may not be from the location (and of the length) requested.
- */
- ContentAudio get (AudioStreamPtr stream, Frame time, Frame length, bool accurate);
+ ContentTime position () const;
+ void emit (AudioStreamPtr stream, boost::shared_ptr<const AudioBuffers>, ContentTime);
+ void seek ();
- void set_fast ();
-
- void give (AudioStreamPtr stream, boost::shared_ptr<const AudioBuffers>, ContentTime);
- void flush ();
- void seek (ContentTime t, bool accurate);
+ boost::signals2::signal<void (AudioStreamPtr, ContentAudio)> Data;
private:
- /** An AudioDecoderStream object to manage each stream in _audio_content */
- std::map<AudioStreamPtr, boost::shared_ptr<AudioDecoderStream> > _streams;
+ /** Frame after the last one that was emitted from Data for each AudioStream */
+ std::map<AudioStreamPtr, Frame> _positions;
};
#endif