]> git.sesse.net Git - kdenlive/blob - src/audiosignal.h
Audio scopes: Only deliver audio when required for better performance when scopes...
[kdenlive] / src / audiosignal.h
1 /***************************************************************************
2  *   Copyright (C) 2010 by Marco Gittler (g.marco@freenet.de)              *
3  *                                                                         *
4  *   This program is free software; you can redistribute it and/or modify  *
5  *   it under the terms of the GNU General Public License as published by  *
6  *   the Free Software Foundation; either version 2 of the License, or     *
7  *   (at your option) any later version.                                   *
8  *                                                                         *
9  *   This program is distributed in the hope that it will be useful,       *
10  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
11  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
12  *   GNU General Public License for more details.                          *
13  *                                                                         *
14  *   You should have received a copy of the GNU General Public License     *
15  *   along with this program; if not, write to the                         *
16  *   Free Software Foundation, Inc.,                                       *
17  *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
18  ***************************************************************************/
19
20 #ifndef AUDIOSIGNAL_H
21 #define AUDIOSIGNAL_H
22
23 #include <QByteArray>
24 #include <QList>
25 #include <QColor>
26 class QLabel;
27
28 #include  <QWidget>
29 class AudioSignal : public QWidget
30 {
31     Q_OBJECT
32 public:
33     AudioSignal(QWidget *parent = 0);
34     ~AudioSignal();
35     /** @brief Used for checking whether audio data needs to be delivered */
36     bool monitoringEnabled() const;
37
38 private:
39     QLabel* label;
40     QByteArray channels,peeks,peekage;
41     QList<QColor> col;
42     QAction *m_aMonitoringEnabled;
43
44 protected:
45     void paintEvent(QPaintEvent*);
46
47 public slots:
48     void showAudio(const QByteArray);
49     void slotReceiveAudio(const QVector<int16_t>&,int,int,int);
50 private slots:
51      void slotSwitchAudioMonitoring(bool isOn);
52
53 signals:
54     void updateAudioMonitoring();
55
56 };
57
58 #endif