a22a0195f1
It's easier to change only the necessary part of encoding settings. The settings are applied during the next event loop or before recording starts. Change-Id: Ia2b5c93826a302212aa7f79a0c75e4cbaaf1dd7a Reviewed-by: Ling Hu <ling.hu@nokia.com> Reviewed-by: Michael Goddard <michael.goddard@nokia.com>
153 lines
4.0 KiB
C++
153 lines
4.0 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** GNU Lesser General Public License Usage
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** This file may be used under the terms of the GNU Lesser General Public
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** License version 2.1 as published by the Free Software Foundation and
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** appearing in the file LICENSE.LGPL included in the packaging of this
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** file. Please review the following information to ensure the GNU Lesser
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** General Public License version 2.1 requirements will be met:
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Nokia gives you certain additional
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** rights. These rights are described in the Nokia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU General
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** Public License version 3.0 as published by the Free Software Foundation
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** and appearing in the file LICENSE.GPL included in the packaging of this
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** file. Please review the following information to ensure the GNU General
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** Public License version 3.0 requirements will be met:
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** http://www.gnu.org/copyleft/gpl.html.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms and
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** conditions contained in a signed written agreement between you and Nokia.
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**
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**
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**
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**
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef AUDIOCAPTURESESSION_H
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#define AUDIOCAPTURESESSION_H
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#include <QFile>
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#include <QUrl>
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#include <QDir>
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#include "audioencodercontrol.h"
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#include "audioendpointselector.h"
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#include "audiomediarecordercontrol.h"
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#include <qaudioformat.h>
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#include <qaudioinput.h>
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#include <qaudiodeviceinfo.h>
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QT_USE_NAMESPACE
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class AudioCaptureSession : public QObject
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{
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Q_OBJECT
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public:
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AudioCaptureSession(QObject *parent = 0);
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~AudioCaptureSession();
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QAudioFormat format() const;
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QAudioDeviceInfo* deviceInfo() const;
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bool isFormatSupported(const QAudioFormat &format) const;
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bool setFormat(const QAudioFormat &format);
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QStringList supportedContainers() const;
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QString containerFormat() const;
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void setContainerFormat(const QString &formatMimeType);
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QString containerDescription(const QString &formatMimeType) const;
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QUrl outputLocation() const;
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bool setOutputLocation(const QUrl& sink);
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qint64 position() const;
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int state() const;
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void record();
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void pause();
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void stop();
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public slots:
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void setCaptureDevice(const QString &deviceName);
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signals:
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void stateChanged(QMediaRecorder::State state);
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void positionChanged(qint64 position);
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void error(int error, const QString &errorString);
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private slots:
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void stateChanged(QAudio::State state);
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void notify();
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private:
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QDir defaultDir() const;
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QString generateFileName(const QDir &dir, const QString &ext) const;
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QFile file;
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QString m_captureDevice;
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QUrl m_sink;
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QUrl m_actualSink;
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QMediaRecorder::State m_state;
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QAudioInput *m_audioInput;
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QAudioDeviceInfo *m_deviceInfo;
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QAudioFormat m_format;
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qint64 m_position;
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bool wavFile;
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// WAV header stuff
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struct chunk
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{
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char id[4];
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quint32 size;
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};
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struct RIFFHeader
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{
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chunk descriptor;
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char type[4];
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};
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struct WAVEHeader
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{
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chunk descriptor;
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quint16 audioFormat; // PCM = 1
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quint16 numChannels;
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quint32 sampleRate;
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quint32 byteRate;
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quint16 blockAlign;
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quint16 bitsPerSample;
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};
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struct DATAHeader
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{
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chunk descriptor;
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// quint8 data[];
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};
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struct CombinedHeader
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{
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RIFFHeader riff;
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WAVEHeader wave;
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DATAHeader data;
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};
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CombinedHeader header;
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};
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#endif
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