X-Git-Url: https://main.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Faudio_ring_buffers.h;h=4c90ed7911d4137d3acd3e5de96591f5a234bbc3;hb=0330b684fe616b465e65b67f7d995e659fa83fca;hp=cec7c712aee24d663bc2de8dc8859e47568f23fa;hpb=4f9cb03792e85cbb5b4d554ab8ec0a3275fa7524;p=dcpomatic.git

diff --git a/src/lib/audio_ring_buffers.h b/src/lib/audio_ring_buffers.h
index cec7c712a..4c90ed791 100644
--- a/src/lib/audio_ring_buffers.h
+++ b/src/lib/audio_ring_buffers.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2016-2017 Carl Hetherington <cth@carlh.net>
+    Copyright (C) 2016-2021 Carl Hetherington <cth@carlh.net>
 
     This file is part of DCP-o-matic.
 
@@ -18,37 +18,39 @@
 
 */
 
+
 #ifndef DCPOMATIC_AUDIO_RING_BUFFERS_H
 #define DCPOMATIC_AUDIO_RING_BUFFERS_H
 
+
 #include "audio_buffers.h"
 #include "types.h"
 #include "dcpomatic_time.h"
-#include <boost/shared_ptr.hpp>
 #include <boost/thread.hpp>
 #include <list>
 
-class AudioRingBuffers : public boost::noncopyable
+
+class AudioRingBuffers
 {
 public:
 	AudioRingBuffers ();
 
-	void put (boost::shared_ptr<const AudioBuffers> data, DCPTime time);
-	void get (float* out, int channels, int frames);
+	AudioRingBuffers (AudioBuffers const&) = delete;
+	AudioRingBuffers& operator= (AudioBuffers const&) = delete;
 
-	void clear ();
-	Frame size ();
+	void put (std::shared_ptr<const AudioBuffers> data, dcpomatic::DCPTime time, int frame_rate);
+	boost::optional<dcpomatic::DCPTime> get (float* out, int channels, int frames);
+	boost::optional<dcpomatic::DCPTime> peek () const;
 
-	DCPTime latest () const {
-		boost::mutex::scoped_lock lm (_mutex);
-		return _latest;
-	}
+	void clear ();
+	/** @return number of frames currently available */
+	Frame size () const;
 
 private:
 	mutable boost::mutex _mutex;
-	std::list<boost::shared_ptr<const AudioBuffers> > _buffers;
-	DCPTime _latest;
-	int _used_in_head;
+	std::list<std::pair<std::shared_ptr<const AudioBuffers>, dcpomatic::DCPTime> > _buffers;
+	int _used_in_head = 0;
 };
 
+
 #endif