git-svn-id: http://webrtc.googlecode.com/svn/trunk@156 4adac7df-926f-26a2-2b94-8c16560cd09d

src/modules/audio_coding/main/test/PCMFile.h

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+/*
+ *  Copyright (c) 2011 The WebRTC project authors. All Rights Reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef PCMFILE_H
+#define PCMFILE_H
+
+#include "typedefs.h"
+#include "module_common_types.h"
+#include <cstdio>
+#include <cstdlib>
+
+// class PCMStream
+// {
+// protected:    
+//     PCMStream(){}
+//     ~PCMStream(){}
+// public:
+//     virtual WebRtc_Word32 Read10MsData(AudioFrame& audioFrame) = 0;
+//     virtual void Write10MsData(WebRtc_Word16 *playoutBuffer, WebRtc_UWord16 playoutLengthSmpls) = 0;
+//     virtual WebRtc_UWord16 PayloadLength10Ms() const = 0;
+//     virtual WebRtc_Word32 SamplingFrequency() const = 0;
+// };
+
+
+using namespace webrtc;
+
+class PCMFile /*: public PCMStream*/
+{
+public:
+    PCMFile();
+    ~PCMFile()
+    {
+        if(_pcmFile != NULL)
+        {
+            fclose(_pcmFile);
+        }
+    }
+    void Open(char *filename, WebRtc_UWord16 frequency, const char *mode, bool autoRewind = false);
+    
+    WebRtc_Word32 Read10MsData(AudioFrame& audioFrame);
+    
+    void Write10MsData(WebRtc_Word16 *playoutBuffer, WebRtc_UWord16 playoutLengthSmpls);
+    void Write10MsData(AudioFrame& audioFrame);
+
+    WebRtc_UWord16 PayloadLength10Ms() const;
+    WebRtc_Word32 SamplingFrequency() const;
+    void Close();
+    bool EndOfFile() const { return _endOfFile; }
+    void Rewind();
+    static WebRtc_Word16 ChooseFile(char* fileName, WebRtc_Word16 maxLen, WebRtc_UWord16* frequencyHz);
+    static WebRtc_Word16 ChooseFile(char* fileName, WebRtc_Word16 maxLen);
+    bool Rewinded();
+    void SaveStereo(
+        bool saveStereo = true);
+    void ReadStereo(
+        bool readStereo = true);
+private:
+    FILE*           _pcmFile;
+    WebRtc_UWord16    _nSamples10Ms;
+    WebRtc_Word32     _frequency;
+    bool            _endOfFile;
+    bool            _autoRewind;
+    bool            _rewinded;
+    WebRtc_UWord32    _timestamp;
+    bool            _saveStereo;
+    bool            _readStereo;
+};
+
+#endif