/usr/include/sipxtapi/mp/mpau.h is in libsipxtapi-dev 3.3.0~test17-2.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (C) 2006 SIPez LLC.
// Licensed to SIPfoundry under a Contributor Agreement.
//
// Copyright (C) 2004-2006 SIPfoundry Inc.
// Licensed by SIPfoundry under the LGPL license.
//
// Copyright (C) 2004-2006 Pingtel Corp. All rights reserved.
// Licensed to SIPfoundry under a Contributor Agreement.
//
// $$
///////////////////////////////////////////////////////////////////////////////
#ifndef AU_H_INCLUDED
#define AU_H_INCLUDED
#include "mp/MpAudioAbstract.h"
#include "mp/MpAudioFileDecompress.h"
#include <iostream>
bool isAuFile(istream &file);
class MpAuRead: public MpAudioAbstract {
private:
istream & mStream;
int m_CompressionType;
AbstractDecompressor *_decoder;
public:
typedef enum {
DeG711MuLaw = 1,
DePcm8Unsigned,
DePcm16MsbSigned
} AuDecompressionType;
MpAuRead(istream & s, int raw = 0);
~MpAuRead() {
if (_decoder) delete _decoder;
}
size_t getSamples(AudioSample *buffer, size_t numSamples) {
return _decoder->getSamples(buffer,numSamples);
}
private:
size_t _dataLength;
public:
size_t readBytes(AudioByte *buffer, size_t length);
int getDecompressionType() {return m_CompressionType; }
size_t getBytesSize();
private:
bool _headerRead; ///< true if header has already been read
int _headerChannels; ///< channels from header
int _headerRate; ///< sampling rate from header
void ReadHeader(void);
protected:
void minMaxSamplingRate(long *min, long *max, long *preferred) {
ReadHeader();
*min = *max = *preferred = _headerRate;
}
void minMaxChannels(int *min, int *max, int *preferred) {
ReadHeader();
*min = *max = *preferred = _headerChannels;
}
};
#endif
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