1/*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License, Version 1.0 only
6 * (the "License").  You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22/*
23 * Copyright (c) 1992-2001 by Sun Microsystems, Inc.
24 * All rights reserved.
25 */
26
27#ifndef _MULTIMEDIA_AUDIOTYPESAMPLERATE_H
28#define	_MULTIMEDIA_AUDIOTYPESAMPLERATE_H
29
30#pragma ident	"%Z%%M%	%I%	%E% SMI"
31
32#include <AudioTypeConvert.h>
33#include <Resample.h>
34
35#ifdef __cplusplus
36extern "C" {
37#endif
38
39// This is the class doing Sample Rate conversion
40
41class AudioTypeSampleRate : public AudioTypeConvert {
42private:
43	ResampleFilter	resampler;
44	int 		input_rate;
45	int		output_rate;
46
47protected:
48
49public:
50	AudioTypeSampleRate(int inrate, int outrate); // Constructor
51	~AudioTypeSampleRate();				// Destructor
52
53	// Class AudioTypeConvert methods specialized here
54	// TRUE if conversion ok
55	virtual Boolean CanConvert(
56	    AudioHdr h) const;			// type to check against
57
58	// Convert buffer to the specified type
59	// Either the input or output type must be handled by this class
60	// Convert to new type
61	virtual AudioError Convert(
62	    AudioBuffer*& inbuf,		// data buffer to process
63	    AudioHdr outhdr);			// target header
64
65	virtual AudioError Flush(AudioBuffer*& buf);	// flush remains
66};
67
68#ifdef __cplusplus
69}
70#endif
71
72#endif /* !_MULTIMEDIA_AUDIOTYPESAMPLERATE_H */
73