X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Faudio_decoder.h;h=387b1ad7ff74e396a6e85978ec6731a8c3af60d9;hb=e60bb3e51bd1508b149e6b8f6608f09b5196ae26;hp=35d9f3560b7d55565ddc3eb8cf9b17e1bebe4ac7;hpb=cab9a1d569396065a6e9eb39386736908564d6b4;p=dcpomatic.git

diff --git a/src/lib/audio_decoder.h b/src/lib/audio_decoder.h
index 35d9f3560..387b1ad7f 100644
--- a/src/lib/audio_decoder.h
+++ b/src/lib/audio_decoder.h
@@ -1,5 +1,5 @@
 /*
-    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
@@ -27,33 +27,41 @@
 #include "decoder.h"
 #include "content.h"
 #include "audio_content.h"
-#include "decoded.h"
+#include "content_audio.h"
+#include <boost/enable_shared_from_this.hpp>
 
 class AudioBuffers;
-class Resampler;
+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 AudioContent>);
-	
+
 	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 audio (boost::shared_ptr<const AudioBuffers>, ContentTime);
+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;
 };
 
 #endif