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
|
/***************************************************************************
* Copyright (C) 2007-2008 by Zhuravlev Uriy *
* stalkerg@gmail.com *
* *
* 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. *
***************************************************************************/
#include <QObject>
#include <QApplication>
#include <QtGlobal>
#include <QDir>
#include <QSettings>
#include "outputjack.h"
#include <qmmp/audioparameters.h>
#include <qmmp/buffer.h>
#include <qmmp/visual.h>
#include <stdio.h>
#include <unistd.h>
#include <string.h>
#define JACK_TIMEOUT 500000L
OutputJACK::OutputJACK() : Output(), m_inited(false)
{
JACK_Init();
m_wait_time = 0;
jack_device = 0;
}
OutputJACK::~OutputJACK()
{
uninitialize();
}
bool OutputJACK::initialize(quint32 freq, ChannelMap map, Qmmp::AudioFormat format)
{
qDebug("OutputJACK: initialize");
int bits = 0;
unsigned long f = freq;
Qmmp::AudioFormat input_format = Qmmp::PCM_S8;
switch(format)
{
case Qmmp::PCM_S8:
bits = 8;
input_format = Qmmp::PCM_S8;
break;
default:
bits = 16;
input_format = Qmmp::PCM_S16LE;
}
if(JACK_Open(&jack_device, bits, &f, map.count()))
{
m_inited = false;
return false;
}
m_inited = true;
configure(f, map, input_format);
return true;
}
qint64 OutputJACK::latency()
{
return 0;
}
qint64 OutputJACK::writeAudio(unsigned char *data, qint64 maxSize)
{
if(!m_inited)
return -1;
qint64 l = JACK_Write(jack_device, data, maxSize);
if(JACK_GetState(jack_device) != PLAYING && JACK_GetState(jack_device) != RESET)
{
qWarning("OutputJACK: jack is not in PLAYING or RESET states");
return -1;
}
if (l == 0)
{
usleep(2000);
m_wait_time += 2000;
if(m_wait_time > JACK_TIMEOUT)
{
qWarning("OutputJACK: jack timeout error");
return -1;
}
}
else
m_wait_time = 0;
return l;
}
void OutputJACK::reset()
{
JACK_Reset(jack_device);
}
void OutputJACK::uninitialize()
{
if (!m_inited)
return;
JACK_Close(jack_device);
m_inited = false;
}
|
