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
|
/*
* Copyright (C) 2003-2015 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef MPD_OUTPUT_WRAPPER_HXX
#define MPD_OUTPUT_WRAPPER_HXX
#include "util/Cast.hxx"
template<class T>
struct AudioOutputWrapper {
static T &Cast(AudioOutput &ao) {
return ContainerCast(ao, &T::base);
}
static AudioOutput *Init(const config_param ¶m, Error &error) {
T *t = T::Create(param, error);
return t != nullptr
? &t->base
: nullptr;
}
static void Finish(AudioOutput *ao) {
T *t = &Cast(*ao);
delete t;
}
static bool Enable(AudioOutput *ao, Error &error) {
T &t = Cast(*ao);
return t.Enable(error);
}
static void Disable(AudioOutput *ao) {
T &t = Cast(*ao);
t.Disable();
}
static bool Open(AudioOutput *ao, AudioFormat &audio_format,
Error &error) {
T &t = Cast(*ao);
return t.Open(audio_format, error);
}
static void Close(AudioOutput *ao) {
T &t = Cast(*ao);
t.Close();
}
gcc_pure
static unsigned Delay(AudioOutput *ao) {
T &t = Cast(*ao);
return t.Delay();
}
static size_t Play(AudioOutput *ao, const void *chunk, size_t size,
Error &error) {
T &t = Cast(*ao);
return t.Play(chunk, size, error);
}
static void Drain(AudioOutput *ao) {
T &t = Cast(*ao);
t.Drain();
}
static void Cancel(AudioOutput *ao) {
T &t = Cast(*ao);
t.Cancel();
}
gcc_pure
static bool Pause(AudioOutput *ao) {
T &t = Cast(*ao);
return t.Pause();
}
};
#endif
|
