xref: /illumos-gate/usr/src/cmd/audio/include/AudioTypeMux.h (revision 581cede61ac9c14d8d4ea452562a567189eead78)
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_AUDIOTYPEMUX_H
28 #define	_MULTIMEDIA_AUDIOTYPEMUX_H
29 
30 #pragma ident	"%Z%%M%	%I%	%E% SMI"
31 
32 #include <AudioTypeConvert.h>
33 
34 #ifdef __cplusplus
35 extern "C" {
36 #endif
37 
38 // This is the class doing channel multiplex/demultiplex
39 
40 class AudioTypeMux : public AudioTypeConvert {
41 
42 protected:
43 
44 public:
45 	AudioTypeMux();				// Constructor
46 	~AudioTypeMux();			// Destructor
47 
48 	// Class AudioTypeConvert methods specialized here
49 	// TRUE if conversion ok
50 	virtual Boolean CanConvert(
51 	    AudioHdr h) const;			// type to check against
52 
53 	// Convert buffer to the specified type
54 	// Either the input or output type must be handled by this class
55 
56 	// Convert to new type
57 	virtual AudioError Convert(
58 	    AudioBuffer*& inbuf,		// data buffer to process
59 	    AudioHdr outhdr);			// target header
60 
61 	virtual AudioError Flush(AudioBuffer*& buf);
62 };
63 
64 #ifdef __cplusplus
65 }
66 #endif
67 
68 #endif /* !_MULTIMEDIA_AUDIOTYPEMUX_H */
69