AudioTypeSampleRate.h revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1992-2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _MULTIMEDIA_AUDIOTYPESAMPLERATE_H
#define _MULTIMEDIA_AUDIOTYPESAMPLERATE_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <AudioTypeConvert.h>
#include <Resample.h>
#ifdef __cplusplus
extern "C" {
#endif
// This is the class doing Sample Rate conversion
class AudioTypeSampleRate : public AudioTypeConvert {
private:
ResampleFilter resampler;
int input_rate;
int output_rate;
protected:
public:
AudioTypeSampleRate(int inrate, int outrate); // Constructor
~AudioTypeSampleRate(); // Destructor
// Class AudioTypeConvert methods specialized here
// TRUE if conversion ok
virtual Boolean CanConvert(
AudioHdr h) const; // type to check against
// Convert buffer to the specified type
// Either the input or output type must be handled by this class
// Convert to new type
virtual AudioError Convert(
AudioBuffer*& inbuf, // data buffer to process
AudioHdr outhdr); // target header
virtual AudioError Flush(AudioBuffer*& buf); // flush remains
};
#ifdef __cplusplus
}
#endif
#endif /* !_MULTIMEDIA_AUDIOTYPESAMPLERATE_H */