Qmmp
visualbuffer_p.h
1 /***************************************************************************
2  * Copyright (C) 2017 by Ilya Kotov *
3  * forkotov02@ya.ru *
4  * *
5  * This program is free software; you can redistribute it and/or modify *
6  * it under the terms of the GNU General Public License as published by *
7  * the Free Software Foundation; either version 2 of the License, or *
8  * (at your option) any later version. *
9  * *
10  * This program is distributed in the hope that it will be useful, *
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of *
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
13  * GNU General Public License for more details. *
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15  * You should have received a copy of the GNU General Public License *
16  * along with this program; if not, write to the *
17  * Free Software Foundation, Inc., *
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19  ***************************************************************************/
20 
21 #ifndef VISUALBUFFER_P_H
22 #define VISUALBUFFER_P_H
23 
24 #include <QtGlobal>
25 #include <QTime>
26 #include <QMutex>
27 
28 #define VISUAL_BUFFER_SIZE 128 //number of nodes
29 
30 class VisualNode
31 {
32 public:
33  float data[2][512];
34  bool used;
35  qint64 ts;
36 
37  VisualNode()
38  {
39  used = false;
40  ts = 0;
41  }
42 };
43 
44 class VisualBuffer
45 {
46 public:
47  VisualBuffer();
48 
49  void add(float *pcm, int samples, int channels, qint64 ts, qint64 delay);
50  VisualNode *take();
51  void clear();
52  QMutex *mutex();
53 
54 private:
55  VisualNode m_buffer[VISUAL_BUFFER_SIZE];
56  qint64 m_elapsed;
57  int m_take_index;
58  int m_add_index;
59  QTime m_time;
60  QMutex m_mutex;
61 
62 };
63 
64 #endif // VISUALBUFFER_P_H