X-Git-Url: https://git.carlh.net/gitweb/?a=blobdiff_plain;f=src%2Flib%2Faudio_buffers.h;h=75bc686f83086df201ecd200510c04cbeb6b59e1;hb=a0c0e609f7fbff8513135428378cc16684bae937;hp=47b8145a1de2892e6126ca3cea8738a034514eff;hpb=a183c1776cfd020a37d028ebb0f641352f49697b;p=dcpomatic.git

diff --git a/src/lib/audio_buffers.h b/src/lib/audio_buffers.h
index 47b8145a1..75bc686f8 100644
--- a/src/lib/audio_buffers.h
+++ b/src/lib/audio_buffers.h
@@ -17,6 +17,9 @@
 
 */
 
+#ifndef DVDOMATIC_AUDIO_BUFFERS_H
+#define DVDOMATIC_AUDIO_BUFFERS_H
+
 #include <boost/shared_ptr.hpp>
 
 /** @class AudioBuffers
@@ -30,6 +33,8 @@ public:
 	AudioBuffers (boost::shared_ptr<const AudioBuffers>);
 	~AudioBuffers ();
 
+	AudioBuffers & operator= (AudioBuffers const &);
+
 	void ensure_size (int);
 
 	float** data () const {
@@ -50,6 +55,9 @@ public:
 
 	void make_silent ();
 	void make_silent (int c);
+	void make_silent (int from, int frames);
+
+	void apply_gain (float);
 
 	void copy_from (AudioBuffers const * from, int frames_to_copy, int read_offset, int write_offset);
 	void move (int from, int to, int frames);
@@ -57,6 +65,9 @@ public:
 	void accumulate_frames (AudioBuffers const *, int read_offset, int write_offset, int frames);
 
 private:
+	void allocate (int, int);
+	void deallocate ();
+	
 	/** Number of channels */
 	int _channels;
 	/** Number of frames (where a frame is one sample across all channels) */
@@ -66,3 +77,5 @@ private:
 	/** Audio data (so that, e.g. _data[2][6] is channel 2, sample 6) */
 	float** _data;
 };
+
+#endif