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
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/*
output to arts
Copyright (C) 2000 Martin Vogt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Library General Public License as published by
the Free Software Foundation.
For more information look at the file COPYRIGHT in this package
*/
#include "artsOutputStream.h"
#include "windowOut.h"
#include "avSyncer.h"
#include "../util/abstract/threadQueue.h"
ArtsOutputStream::ArtsOutputStream(void (*streamStateChangeCallback)(void*)) {
audioTime=new AudioTime();
x11Window=new WindowOut();
privateBufferSize=1024*32;
// we can dynamically change the buffer size,
// over a config switch in avSyncer
// but for now this should be ok
// Arts must pass the total size of the audiobuffer
// from /dev/dsp + connected nodes
// or arts need a video interface
stream=new BufferInputStream(privateBufferSize,1024*64,"artsLoopback");
avSyncer=new AVSyncer(privateBufferSize);
// with the ThreadQueue we protect all calls to the
// x11 output. This is necessary, because arts may call
// in the future "config" entries to switch the video
// mode (full,double,desktop)
threadQueue=new ThreadQueue();
// we set it, but its never used !
this->streamStateChangeCallback=streamStateChangeCallback;
}
ArtsOutputStream::~ArtsOutputStream() {
delete stream;
delete audioTime;
delete x11Window;
delete avSyncer;
delete threadQueue;
}
int ArtsOutputStream::audioSetup(int freq,int stereo,
int sign,int big,int sampleSize) {
audioTime->setFormat(stereo,sampleSize,freq,sign,big);
avSyncer->audioSetup(freq,stereo,sign,big,sampleSize);
OutputStream::audioSetup(freq,stereo,sign,big,sampleSize);
return true;
}
AudioTime* ArtsOutputStream::getAudioTime() {
return audioTime;
}
void ArtsOutputStream::audioClose() {
audioTime->setTime(0.0);
// if we close this stream the thread is kicked out.
stream->close();
stream->clear();
avSyncer->audioClose();
}
void ArtsOutputStream::audioFlush() {
OutputStream::audioFlush();
audioClose();
}
void ArtsOutputStream::audioOpen() {
audioTime->setTime(0.0);
// if we close this stream the thread is kicked out.
stream->open("artsLoopback");
}
int ArtsOutputStream::audioPlay(TimeStamp* startStamp,
TimeStamp* endStamp,char *buffer, int size) {
int write=size;
// we call this for stream state handling
OutputStream::audioPlay(startStamp,endStamp,buffer,size);
// store sync information
avSyncer->audioPlay(startStamp,endStamp,buffer,size);
// here we simulate our own blocking audio device
if (stream->isOpen()==false) {
audioTime->sleepWrite(size);
} else {
write=stream->write(buffer,size,startStamp);
}
return write;
}
int ArtsOutputStream::read(char** buffer,int bytes) {
int back=stream->readRemote(buffer,bytes);
return back;
}
void ArtsOutputStream::forwardReadPtr(int bytes) {
audioTime->forwardTime(bytes);
stream->forwardReadPtr(bytes);
}
int ArtsOutputStream::getPreferredDeliverSize() {
return avSyncer->getPreferredDeliverSize();
}
int ArtsOutputStream::openWindow(int width, int height,const char *title) {
threadQueue->waitForExclusiveAccess();
int back=x11Window->openWindow(width,height,title);
threadQueue->releaseExclusiveAccess();
return back;
}
int ArtsOutputStream::x11WindowId() {
return x11Window->x11WindowId();
}
void ArtsOutputStream::closeWindow() {
threadQueue->waitForExclusiveAccess();
x11Window->closeWindow();
threadQueue->releaseExclusiveAccess();
}
void ArtsOutputStream::flushWindow() {
threadQueue->waitForExclusiveAccess();
x11Window->flushWindow();
threadQueue->releaseExclusiveAccess();
}
PictureArray* ArtsOutputStream::lockPictureArray() {
PictureArray* back;
threadQueue->waitForExclusiveAccess();
back=x11Window->lockPictureArray();
threadQueue->releaseExclusiveAccess();
return back;
}
void ArtsOutputStream::unlockPictureArray(PictureArray* pictureArray) {
YUVPicture* pic=pictureArray->getYUVPictureCallback();
if (avSyncer->syncPicture(pic)==false) {
return;
}
threadQueue->waitForExclusiveAccess();
x11Window->unlockPictureArray(pictureArray);
threadQueue->releaseExclusiveAccess();
}
int ArtsOutputStream::getBufferFillgrade() {
return stream->getFillgrade();
}
int ArtsOutputStream::getFrameusec() {
return avSyncer->getFrameusec();
}
void ArtsOutputStream::setAudioBufferSize(int size) {
avSyncer->setAudioBufferSize(privateBufferSize+size);
}
void ArtsOutputStream::config(const char* key,const char* value,
void* user_data) {
threadQueue->waitForExclusiveAccess();
avSyncer->config(key,value,user_data);
x11Window->config(key,value,user_data);
threadQueue->releaseExclusiveAccess();
}
|
