/*
- 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
*/
-#ifndef DVDOMATIC_AUDIO_DECODER_H
-#define DVDOMATIC_AUDIO_DECODER_H
+/** @file src/lib/audio_decoder.h
+ * @brief Parent class for audio decoders.
+ */
+
+#ifndef DCPOMATIC_AUDIO_DECODER_H
+#define DCPOMATIC_AUDIO_DECODER_H
-#include "audio_source.h"
-#include "stream.h"
#include "decoder.h"
+#include "content.h"
+#include "audio_content.h"
+#include "content_audio.h"
+#include <boost/enable_shared_from_this.hpp>
+
+class AudioBuffers;
+class AudioDecoderStream;
-class AudioDecoder : public AudioSource, public virtual Decoder
+/** @class AudioDecoder.
+ * @brief Parent class for audio decoders.
+ */
+class AudioDecoder : public virtual Decoder, public boost::enable_shared_from_this<AudioDecoder>
{
public:
- AudioDecoder (boost::shared_ptr<Film>, boost::shared_ptr<const Options>, Job *);
-
- virtual void set_audio_stream (boost::optional<AudioStream>);
+ AudioDecoder (boost::shared_ptr<const AudioContent>);
- boost::optional<AudioStream> audio_stream () const {
- return _audio_stream;
+ boost::shared_ptr<const AudioContent> audio_content () const {
+ return _audio_content;
}
- std::vector<AudioStream> audio_streams () const {
- return _audio_streams;
- }
+ /** 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);
protected:
- boost::optional<AudioStream> _audio_stream;
- std::vector<AudioStream> _audio_streams;
+ 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;
+ /** An AudioDecoderStream object to manage each stream in _audio_content */
+ std::map<AudioStreamPtr, boost::shared_ptr<AudioDecoderStream> > _streams;
};
#endif