1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
|
/*
* 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_AUDIOLIST_H
#define _MULTIMEDIA_AUDIOLIST_H
#pragma ident "%Z%%M% %I% %E% SMI"
#include <Audio.h>
#ifdef __cplusplus
extern "C" {
#endif
// This is the 'base' class for a list of extents of audio objects
class AudioList : public Audio {
// Define a linked list nested class
class AudioListEntry {
private:
void operator=(AudioListEntry); // Assignment is illegal
public:
Audio* aptr; // pointer to audio object
AudioListEntry* next; // pointer to next in list
AudioListEntry* prev; // pointer to previous
// Constructor w/obj
AudioListEntry(
Audio* obj); // referenced audio object
~AudioListEntry(); // Destructor
void newptr(Audio* newa); // Reset extent
// Link in new extent
void link(
AudioListEntry* after); // link after this one
// Split an extent
void split(
Double pos); // split at offset
};
private:
AudioListEntry head; // list head
AudioListEntry* first() const; // Return first extent
// Locate extent/offset
virtual Boolean getposition(
Double& pos, // target position (updated)
AudioListEntry*& ep) const; // returned entry pointer
AudioList operator=(AudioList); // Assignment is illegal
public:
AudioList(const char *name = "[list]"); // Constructor
virtual ~AudioList(); // Destructor
// 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 isList() const { return (TRUE); }
// list manipulation methods
// Insert an entry
virtual AudioError Insert(
Audio* obj); // object to insert
// Insert an entry
virtual AudioError Insert(
Audio* obj, // object to insert
Double pos); // insertion offset, in seconds
// Append an entry
virtual AudioError Append(
Audio* obj); // object to append
// copy to another audio obj.
virtual AudioError AsyncCopy(
Audio* ap, // dest audio object
Double& frompos,
Double& topos,
Double& limit);
};
#ifdef __cplusplus
}
#endif
#endif /* !_MULTIMEDIA_AUDIOLIST_H */
|
