/*
- Copyright (C) 2012 Carl Hetherington <cth@carlh.net>
+ Copyright (C) 2012-2014 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
#define DCPOMATIC_AUDIO_DECODER_H
#include "decoder.h"
-#include "content.h"
-#include "audio_content.h"
-#include "decoded.h"
+#include "content_audio.h"
+#include "audio_stream.h"
+#include <boost/enable_shared_from_this.hpp>
class AudioBuffers;
-class Resampler;
+class AudioContent;
+class AudioDecoderStream;
/** @class AudioDecoder.
* @brief Parent class for audio decoders.
*/
-class AudioDecoder : public virtual Decoder
+class AudioDecoder : public virtual Decoder, public boost::enable_shared_from_this<AudioDecoder>
{
public:
- AudioDecoder (boost::shared_ptr<const Film>, boost::shared_ptr<const AudioContent>);
-
+ AudioDecoder (boost::shared_ptr<const AudioContent>, bool fast);
+
boost::shared_ptr<const AudioContent> audio_content () const {
return _audio_content;
}
- void seek (ContentTime time, bool accurate);
-
-protected:
+ /** 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_audio (AudioStreamPtr stream, Frame time, Frame length, bool accurate);
+
+ void set_ignore_audio ();
- void audio (boost::shared_ptr<const AudioBuffers>, ContentTime);
+ bool fast () const {
+ return _fast;
+ }
+
+protected:
+ void audio (AudioStreamPtr stream, boost::shared_ptr<const AudioBuffers>, ContentTime);
void flush ();
+ void seek (ContentTime t, bool accurate);
+private:
boost::shared_ptr<const AudioContent> _audio_content;
- boost::shared_ptr<Resampler> _resampler;
- boost::optional<ContentTime> _audio_position;
+ /** An AudioDecoderStream object to manage each stream in _audio_content */
+ std::map<AudioStreamPtr, boost::shared_ptr<AudioDecoderStream> > _streams;
+ bool _ignore_audio;
+ bool _fast;
};
#endif