xref: /illumos-gate/usr/src/cmd/audio/include/AudioTypeG72X.h (revision e82490700e19f1b8a2cef6102f4726144d281988)
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_AUDIOTYPEG72X_H
28 #define	_MULTIMEDIA_AUDIOTYPEG72X_H
29 
30 #include <AudioTypeConvert.h>
31 #include <audio_encode.h>
32 
33 #ifdef __cplusplus
34 extern "C" {
35 #endif
36 
37 // This is the class for CCITT G.72X compress/decompress
38 
39 class AudioTypeG72X : public AudioTypeConvert {
40 private:
41 	struct audio_g72x_state 	g72x_state;
42 	Boolean				initialized;
43 
44 protected:
45 
46 public:
47 	AudioTypeG72X();	// Constructor
48 	~AudioTypeG72X();	// Destructor
49 
50 	// Class AudioTypeConvert methods specialized here
51 
52 	// TRUE if conversion ok
53 	virtual Boolean CanConvert(
54 	    AudioHdr h) const;			// type to check against
55 
56 	// Convert buffer to the specified type
57 	// Either the input or output type must be handled by this class
58 
59 	// Convert to new type
60 	virtual AudioError Convert(
61 	    AudioBuffer*& inbuf,		// data buffer to process
62 	    AudioHdr outhdr);			// target header
63 
64 	virtual AudioError Flush(AudioBuffer*& buf);
65 };
66 
67 #ifdef __cplusplus
68 }
69 #endif
70 
71 #endif /* !_MULTIMEDIA_AUDIOTYPEG72X_H */
72