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/*
* 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_AUDIOEXTENT_H
#define _MULTIMEDIA_AUDIOEXTENT_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <values.h>
#include <Audio.h>
#ifdef __cplusplus
extern "C" {
#endif
// This class defines an extent of a referenced audio class
class AudioExtent : public Audio {
private:
Audio* ref; // reference to audio object
Double start; // start time
Double end; // end time
AudioExtent operator=(AudioExtent); // Assignment is illegal
public:
// Constructor
AudioExtent(
Audio* obj, // audio object
double s = 0., // start time
double e = AUDIO_UNKNOWN_TIME); // end time
virtual ~AudioExtent(); // Destructor
Audio* GetRef() const; // Get audio obj
void SetRef(Audio* r); // Set audio obj
Double GetStart() const; // Get start time
void SetStart(Double s); // Set start time
Double GetEnd() const; // Get end time
void SetEnd(Double e); // Set end time
// class Audio methods specialized here
virtual Double GetLength() const; // Get length, in secs
virtual char *GetName() const; // Get name string
virtual AudioHdr GetHeader(); // Get header
virtual AudioHdr GetHeader(Double pos); // Get header at pos
// Read from position
virtual AudioError ReadData(
void* buf, // buffer to fill
size_t& len, // buffer length (updated)
Double& pos); // start position (updated)
// Write is prohibited
virtual AudioError WriteData(
void* buf, // buffer to copy
size_t& len, // buffer length (updated)
Double& pos); // start position (updated)
virtual Boolean isExtent() const { return (TRUE); }
};
#ifdef __cplusplus
}
#endif
#endif /* !_MULTIMEDIA_AUDIOEXTENT_H */
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