/usr/include/sipxtapi/mp/MpAudioResource.h is in libsipxtapi-dev 3.3.0~test17-1.
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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 _MpAudioResource_h_
#define _MpAudioResource_h_
// SYSTEM INCLUDES
// APPLICATION INCLUDES
#include "mp/MpResource.h"
#include "mp/MpAudioBuf.h"
// DEFINES
// MACROS
// EXTERNAL FUNCTIONS
// EXTERNAL VARIABLES
// CONSTANTS
// STRUCTS
// TYPEDEFS
/// Abstract base class for all audio processing objects.
/**
* This class adds doProcessFrame() function which should be
* defined in all derived classes.
*/
class MpAudioResource : public MpResource
{
/* //////////////////////////// PUBLIC //////////////////////////////////// */
public:
/* ============================ CREATORS ================================== */
///@name Creators
//@{
/// Constructor
MpAudioResource(const UtlString& rName,
int minInputs, int maxInputs,
int minOutputs, int maxOutputs);
/// Destructor
virtual ~MpAudioResource();
//@}
/* ============================ MANIPULATORS ============================== */
///@name Manipulators
//@{
/// Wrapper around <i>doProcessFrame()</i>.
virtual UtlBoolean processFrame(void);
/**<
* Returns TRUE if successful, FALSE otherwise.
* This method prepares the input buffers before calling
* <i>doProcessFrame()</i> and distributes the output buffers to the
* appropriate downstream resources after <i>doProcessFrame()</i>
* returns.
*/
//@}
/* ============================ ACCESSORS ================================= */
///@name Accessors
//@{
//@}
/* ============================ INQUIRY =================================== */
///@name Inquiry
//@{
//@}
/* //////////////////////////// PROTECTED ///////////////////////////////// */
protected:
/// @brief This method does the real work for the media processing resource and
/// must be defined in each class derived from this one.
virtual UtlBoolean doProcessFrame(MpBufPtr inBufs[],
MpBufPtr outBufs[],
int inBufsSize,
int outBufsSize,
UtlBoolean isEnabled,
int samplesPerFrame,
int samplesPerSecond
) = 0;
/**<
* @param inBufs (in) array of pointers to input buffers for the resource
* @param outBufs (out) array of pointers to output buffers produce by the resource
* @param inBufsSize (in) size of the inBufs array
* @param outBufsSize (in) size of the outBufs array
* @param isEnabled (in) indicates whether this resource has been enabled
* @param samplesPerFrame (in) samples to produce per frame processing interval
* @param samplesPerSecond (in) samples to produce per second
*
* @returns TRUE if successful, FALSE otherwise.
*/
/* //////////////////////////// PRIVATE /////////////////////////////////// */
private:
/// Copy constructor (not implemented for this class)
MpAudioResource(const MpAudioResource& rMpResource);
/// Assignment operator (not implemented for this class)
MpAudioResource& operator=(const MpAudioResource& rhs);
};
/* ============================ INLINE METHODS ============================ */
#endif // _MpAudioResource_h_
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