/*
* 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) 1990-2001 by Sun Microsystems, Inc.
* All rights reserved.
*/
#ifndef _MULTIMEDIA_AUDIOTYPECONVERT_H
#define _MULTIMEDIA_AUDIOTYPECONVERT_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <AudioBuffer.h>
#ifdef __cplusplus
extern "C" {
#endif
// This is the abstract base class for an audio type conversion module
class AudioTypeConvert {
protected:
AudioHdr hdr; // contains type information
public:
AudioTypeConvert() {}; // Constructor
virtual ~AudioTypeConvert() {}; // Destructor
virtual AudioHdr DataType() const // Return type
{ return (hdr); }
// class methods specialized by subclasses
// TRUE if conversion ok
virtual Boolean CanConvert(
AudioHdr h) const = 0; // 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) = 0; // target header
virtual AudioError Flush(AudioBuffer*& buf) = 0; // flush any remaining
// data that may exist
};
#ifdef __cplusplus
}
#endif
#endif /* !_MULTIMEDIA_AUDIOTYPECONVERT_H */