diff options
author | Joerg Bornemann <joerg.bornemann@digia.com> | 2012-12-05 13:03:09 +0100 |
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committer | The Qt Project <gerrit-noreply@qt-project.org> | 2012-12-05 18:20:35 +0100 |
commit | 6b4994c265889db2058b7d5850b51ddfc5478754 (patch) | |
tree | 623e53eb8004b6b8ecdb7e2867ab489dde606fac /examples/multimedia/audiooutput/audiooutput.h | |
parent | 90c8ba233b77ed74012de3b5598a7617672e9d31 (diff) |
centralize and fixup example sources install targets
This follows suit with aeb036e in qtbase.
Change-Id: Ie8580d0a1f38ab9858b0e44c9f99bdc552a1752a
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@digia.com>
Reviewed-by: hjk <qthjk@ovi.com>
Diffstat (limited to 'examples/multimedia/audiooutput/audiooutput.h')
-rw-r--r-- | examples/multimedia/audiooutput/audiooutput.h | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/examples/multimedia/audiooutput/audiooutput.h b/examples/multimedia/audiooutput/audiooutput.h new file mode 100644 index 000000000..52c29cc79 --- /dev/null +++ b/examples/multimedia/audiooutput/audiooutput.h @@ -0,0 +1,122 @@ +/**************************************************************************** +** +** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** You may use this file under the terms of the BSD license as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names +** of its contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef AUDIOOUTPUT_H +#define AUDIOOUTPUT_H + +#include <math.h> + +#include <QAudioOutput> +#include <QByteArray> +#include <QComboBox> +#include <QIODevice> +#include <QLabel> +#include <QMainWindow> +#include <QObject> +#include <QPushButton> +#include <QSlider> +#include <QTimer> + +class Generator : public QIODevice +{ + Q_OBJECT + +public: + Generator(const QAudioFormat &format, qint64 durationUs, int sampleRate, QObject *parent); + ~Generator(); + + void start(); + void stop(); + + qint64 readData(char *data, qint64 maxlen); + qint64 writeData(const char *data, qint64 len); + qint64 bytesAvailable() const; + +private: + void generateData(const QAudioFormat &format, qint64 durationUs, int sampleRate); + +private: + qint64 m_pos; + QByteArray m_buffer; +}; + +class AudioTest : public QMainWindow +{ + Q_OBJECT + +public: + AudioTest(); + ~AudioTest(); + +private: + void initializeWindow(); + void initializeAudio(); + void createAudioOutput(); + +private: + QTimer *m_pullTimer; + + // Owned by layout + QPushButton *m_modeButton; + QPushButton *m_suspendResumeButton; + QComboBox *m_deviceBox; + QLabel *m_volumeLabel; + QSlider *m_volumeSlider; + + QAudioDeviceInfo m_device; + Generator *m_generator; + QAudioOutput *m_audioOutput; + QIODevice *m_output; // not owned + QAudioFormat m_format; + + bool m_pullMode; + QByteArray m_buffer; + +private slots: + void notified(); + void pullTimerExpired(); + void toggleMode(); + void toggleSuspendResume(); + void stateChanged(QAudio::State state); + void deviceChanged(int index); + void volumeChanged(int); +}; + +#endif // AUDIOOUTPUT_H |