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
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
|
// not used
#include "decoderthread.h"
/*
* TODO:
* o need to maintain aspect ratio while resizing
* o clicking in the middle of the slider bar shuld move the slider to the middle
* o need to be able to rewind the move when it is done playing
* o need to be able to load another move and play it w/o restarting player
* o pause button needs to work
* o need images for btns
*/
DecoderThread::DecoderThread()
{
channel = NULL;
geometry.setX(0);
geometry.setY(0);
geometry.setWidth(0);
geometry.setHeight(0);
stream_id = 101;
elapsedTime = 0;
la_seekPos = -1;
videoTimer = NULL;
audioTimer = NULL;
}
void DecoderThread::run()
{
/* need a media file */
if (filename.length() == 0)
{
emit on_decoderErrorMsg("No media file",
"Please select a media file to play");
return;
}
}
void DecoderThread::startMediaPlay()
{
MediaPacket *mediaPkt;
int is_video_frame;
int rv;
/* setup video timer; each time this timer fires, it sends */
/* one video pkt to the client then resets the callback duration */
videoTimer = new QTimer;
connect(videoTimer, SIGNAL(timeout()), this, SLOT(videoTimerCallback()));
//videoTimer->start(1500);
/* setup audio timer; does the same as above, but with audio pkts */
audioTimer = new QTimer;
connect(audioTimer, SIGNAL(timeout()), this, SLOT(audioTimerCallback()));
//audioTimer->start(500);
/* setup pktTimer; each time this timer fires, it reads AVPackets */
/* and puts them into audio/video Queues */
pktTimer = new QTimer;
connect(pktTimer, SIGNAL(timeout()), this, SLOT(pktTimerCallback()));
while (1)
{
/* fill the audio/video queues with initial data; thereafter */
/* data will be filled by pktTimerCallback() */
if ((audioQueue.count() >= 3000) || (videoQueue.count() >= 3000))
{
//pktTimer->start(50);
//videoTimer->start(1500);
//audioTimer->start(500);
playVideo = new PlayVideo(NULL, &videoQueue, channel, 101);
playVideoThread = new QThread(this);
connect(playVideoThread, SIGNAL(started()), playVideo, SLOT(play()));
playVideo->moveToThread(playVideoThread);
playVideoThread->start();
playAudio = new PlayAudio(NULL, &audioQueue, channel, 101);
playAudioThread = new QThread(this);
connect(playAudioThread, SIGNAL(started()), playAudio, SLOT(play()));
playAudio->moveToThread(playAudioThread);
playAudioThread->start();
return;
}
mediaPkt = new MediaPacket;
rv = xrdpvr_get_frame(&mediaPkt->av_pkt,
&is_video_frame,
&mediaPkt->delay_in_us);
if (rv < 0)
{
/* looks like we reached end of file */
break;
}
if (is_video_frame)
videoQueue.enqueue(mediaPkt);
else
audioQueue.enqueue(mediaPkt);
} /* end while (1) */
}
void DecoderThread::on_mediaSeek(int value)
{
mutex.lock();
la_seekPos = value;
mutex.unlock();
qDebug() << "media seek value=" << value;
/* pktTimer stops at end of media; need to restart it */
if (!pktTimer->isActive())
{
updateSlider();
pktTimer->start(100);
}
}
void DecoderThread::setFilename(QString filename)
{
this->filename = filename;
}
void DecoderThread::stopPlayer()
{
pktTimer->stop();
audioQueue.clear();
videoQueue.clear();
}
void DecoderThread::pausePlayer()
{
pktTimer->stop();
}
void DecoderThread::resumePlayer()
{
pktTimer->start(100);
}
void DecoderThread::close()
{
}
void DecoderThread::audioTimerCallback()
{
MediaPacket *pkt;
int delayInMs;
if (audioQueue.isEmpty())
{
qDebug() << "audioTimerCallback: got empty";
audioTimer->setInterval(100);
return;
}
pkt = audioQueue.dequeue();
delayInMs = (int) ((float) pkt->delay_in_us / 1000.0);
send_audio_pkt(channel, 101, pkt->av_pkt);
delete pkt;
//qDebug() << "audioTimerCallback: delay :" << delayInMs;
audioTimer->setInterval(delayInMs);
}
void DecoderThread::videoTimerCallback()
{
MediaPacket *pkt;
int delayInMs;
if (videoQueue.isEmpty())
{
qDebug() << "videoTimerCallback: GOT EMPTY";
videoTimer->setInterval(100);
return;
}
pkt = videoQueue.dequeue();
delayInMs = (int) 10; // ((float) pkt->delay_in_us / 1000.0);
send_video_pkt(channel, 101, pkt->av_pkt);
delete pkt;
updateSlider();
//qDebug() << "videoTimerCallback: delay :" << delayInMs;
videoTimer->setInterval(delayInMs);
}
void DecoderThread::pktTimerCallback()
{
MediaPacket *mediaPkt;
int is_video_frame;
int rv;
while (1)
{
qDebug() << "pktTimerCallback: audioCount=" << audioQueue.count() << "videoCount=" << videoQueue.count();
#if 1
if ((audioQueue.count() >= 20) || (videoQueue.count() >= 20))
return;
#else
if (videoQueue.count() >= 60)
return;
#endif
mediaPkt = new MediaPacket;
rv = xrdpvr_get_frame(&mediaPkt->av_pkt,
&is_video_frame,
&mediaPkt->delay_in_us);
if (rv < 0)
{
/* looks like we reached end of file */
qDebug() << "###### looks like we reached EOF";
pktTimer->stop();
// LK_TODO set some flag so audio/video timer also stop when q is empty
return;
}
if (is_video_frame)
videoQueue.enqueue(mediaPkt);
else
audioQueue.enqueue(mediaPkt);
}
}
void DecoderThread::updateSlider()
{
if (elapsedTime == 0)
elapsedTime = av_gettime();
/* time elapsed in 1/100th sec units since play started */
emit on_elapsedtime((av_gettime() - elapsedTime) / 10000);
mutex.lock();
if (la_seekPos >= 0)
{
qDebug() << "seeking to" << la_seekPos;
//audioTimer->stop();
//videoTimer->stop();
xrdpvr_seek_media(la_seekPos, 0);
elapsedTime = av_gettime() - la_seekPos * 1000000;
//audioTimer->start(10);
//videoTimer->start(10);
la_seekPos = -1;
}
mutex.unlock();
}
|
