AudioTypePcm.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]
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/*
* Copyright (c) 1990-2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _MULTIMEDIA_AUDIOTYPEPCM_H
#define _MULTIMEDIA_AUDIOTYPEPCM_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <AudioTypeConvert.h>
#ifdef __cplusplus
extern "C" {
#endif
// This is the class for a linear PCM conversion module
class AudioTypePcm : public AudioTypeConvert {
protected:
typedef unsigned char ulaw;
typedef unsigned char alaw;
// Conversion routines inline'd in the source file
double char2dbl(char);
double short2dbl(short);
double long2dbl(long);
long dbl2long(double, long);
void char2short(char *&, short *&);
void char2long(char *&, long *&);
void char2float(char *&, float *&);
void char2double(char *&, double *&);
void char2ulaw(char *&, ulaw *&);
void char2alaw(char *&, alaw *&);
void short2char(short *&, char *&);
void short2long(short *&, long *&);
void short2float(short *&, float *&);
void short2double(short *&, double *&);
void short2ulaw(short *&, ulaw *&);
void short2alaw(short *&, alaw *&);
void long2char(long *&, char *&);
void long2short(long *&, short *&);
void long2float(long *&, float *&);
void long2double(long *&, double *&);
void long2ulaw(long *&, ulaw *&);
void long2alaw(long *&, alaw *&);
void float2char(float *&, char *&);
void float2short(float *&, short *&);
void float2long(float *&, long *&);
void float2double(float *&, double *&);
void float2ulaw(float *&, ulaw *&);
void float2alaw(float *&, alaw *&);
void double2char(double *&, char *&);
void double2short(double *&, short *&);
void double2long(double *&, long *&);
void double2float(double *&, float *&);
void double2ulaw(double *&, ulaw *&);
void double2alaw(double *&, alaw *&);
void ulaw2char(ulaw *&, char *&);
void ulaw2short(ulaw*&, short *&);
void ulaw2long(ulaw*&, long *&);
void ulaw2float(ulaw *&, float *&);
void ulaw2double(ulaw *&, double *&);
void ulaw2alaw(ulaw *&, alaw *&);
void alaw2ulaw(alaw *&, ulaw *&);
void alaw2char(alaw *&, char *&);
void alaw2short(alaw *&, short *&);
void alaw2long(alaw *&, long *&);
void alaw2float(alaw *&, float *&);
void alaw2double(alaw *&, double *&);
public:
AudioTypePcm(); // Constructor
// 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);
};
#ifdef __cplusplus
}
#endif
#endif /* !_MULTIMEDIA_AUDIOTYPEPCM_H */