First checkin

git-svn-id: https://oreka.svn.sourceforge.net/svnroot/oreka/trunk@2 09dcff7a-b715-0410-9601-b79a96267cd0

1 files changed, 69 insertions, 0 deletions

diff --git a/orkaudio/audiofile/AudioFile.h b/orkaudio/audiofile/AudioFile.h
new file mode 100644
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+++ b/orkaudio/audiofile/AudioFile.h
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+/*
+ * Oreka -- A media capture and retrieval platform
+ * 
+ * Copyright (C) 2005, orecx LLC
+ *
+ * http://www.orecx.com
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License.
+ * Please refer to http://www.gnu.org/copyleft/gpl.html
+ *
+ */
+
+#ifndef __AUDIOFILE_H__
+#define __AUDIOFILE_H__
+
+#include "boost/shared_ptr.hpp"
+#include "ace/OS_NS_stdio.h"
+#include "ace/OS_NS_sys_stat.h"
+
+#include "StdString.h"
+#include "AudioCapture.h"
+
+
+/** Base class for all file accessor classes. */
+class AudioFile
+{
+public:
+	typedef enum {READ = 0, WRITE = 1} fileOpenModeEnum;
+
+	/** Open audio file for reading or writing.
+		Filename should include path information but not extension (which is automatically appended)
+		If the underlying format does not support stereo, data is transparently read from two files in read mode 
+		or two files are transparently written to in write mode */
+	virtual void Open(CStdString& filename, fileOpenModeEnum mode, bool stereo = false, int sampleRate = 8000) = 0;
+	/** Same as above but uses the intenal filename */
+	void Open(fileOpenModeEnum mode, bool stereo = false, int sampleRate = 8000);
+	/** Explicitely close the underlying file(s). This is also done automatically by the destructor */
+	virtual void Close() = 0;
+
+	/** Writes a chunk of audio to disk.
+		If stereo capture, this represents the local party */
+	virtual void WriteChunk(AudioChunkRef chunkRef) = 0;
+	/** Writes a chunk of audio from the remote pary to disk (if stereo capture)
+	//virtual bool WriteRemoteChunk(AudioChunkRef chunkRef) = 0;
+	/** Reads a chunk of audio stereo-wise 
+		If underlying storage is mono, remoteChunk will be NULL 
+		ReadChunkStereo guarantees that local and remote chunks returned are in sync */
+	//virtual bool ReadChunkStereo(AudioChunkRef& chunk, AudioChunkRef& remoteChunk) = 0;
+	/** Reads a chunk of audio mono-wise
+		If underlying file is stereo, ReadChunkMono merges the two streams in a synchronized manner and returns the result */
+	virtual int ReadChunkMono(AudioChunkRef& chunk) = 0;
+
+	/** Move the file to a new name including ".orig" suffix */
+	void MoveOrig();
+	void Delete();
+	virtual CStdString GetExtension() = 0;
+
+	static void RecursiveMkdir(CStdString& path);
+protected:
+	CStdString m_filename;
+	fileOpenModeEnum m_mode;
+	int m_numChunksWritten;
+};
+
+typedef boost::shared_ptr<AudioFile> AudioFileRef;
+
+#endif
+