--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/plugins/multimedia/audiocapture/audiocapturesession.cpp Wed Aug 25 15:49:42 2010 +0300
@@ -0,0 +1,358 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Mobility Components.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtCore/qdebug.h>
+#include <QtCore/qurl.h>
+#include <QtCore/qdir.h>
+#include <qaudiodeviceinfo.h>
+
+#include "../../../src/multimedia/qmediarecorder.h"
+
+#include "audiocapturesession.h"
+
+AudioCaptureSession::AudioCaptureSession(QObject *parent):
+ QObject(parent)
+{
+ m_deviceInfo = new QAudioDeviceInfo(QAudioDeviceInfo::defaultInputDevice());
+ m_audioInput = 0;
+ m_position = 0;
+ m_state = QMediaRecorder::StoppedState;
+
+ m_format.setFrequency(8000);
+ m_format.setChannels(1);
+ m_format.setSampleSize(8);
+ m_format.setSampleType(QAudioFormat::UnSignedInt);
+ m_format.setCodec("audio/pcm");
+ wavFile = true;
+}
+
+AudioCaptureSession::~AudioCaptureSession()
+{
+ stop();
+
+ if(m_audioInput)
+ delete m_audioInput;
+}
+
+QAudioDeviceInfo* AudioCaptureSession::deviceInfo() const
+{
+ return m_deviceInfo;
+}
+
+QAudioFormat AudioCaptureSession::format() const
+{
+ return m_format;
+}
+
+bool AudioCaptureSession::isFormatSupported(const QAudioFormat &format) const
+{
+ if(m_deviceInfo) {
+ if(format.codec().contains(QLatin1String("audio/x-wav"))) {
+ QAudioFormat fmt = format;
+ fmt.setCodec("audio/pcm");
+ return m_deviceInfo->isFormatSupported(fmt);
+ } else
+ return m_deviceInfo->isFormatSupported(format);
+ }
+ return false;
+}
+
+bool AudioCaptureSession::setFormat(const QAudioFormat &format)
+{
+ if(m_deviceInfo) {
+
+ QAudioFormat fmt = format;
+
+ if(m_deviceInfo->isFormatSupported(fmt)) {
+ m_format = fmt;
+ if(m_audioInput) delete m_audioInput;
+ m_audioInput = 0;
+ QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
+ for(int i=0;i<devices.size();i++) {
+ if(qstrcmp(m_deviceInfo->deviceName().toLocal8Bit().constData(),
+ devices.at(i).deviceName().toLocal8Bit().constData()) == 0) {
+ m_audioInput = new QAudioInput(devices.at(i),m_format);
+ connect(m_audioInput,SIGNAL(stateChanged(QAudio::State)),this,SLOT(stateChanged(QAudio::State)));
+ connect(m_audioInput,SIGNAL(notify()),this,SLOT(notify()));
+ break;
+ }
+ }
+ } else {
+ m_format = m_deviceInfo->preferredFormat();
+ qWarning()<<"failed to setFormat using preferred...";
+ }
+ }
+ return false;
+}
+
+QStringList AudioCaptureSession::supportedContainers() const
+{
+ QStringList list;
+ if(m_deviceInfo) {
+ if (m_deviceInfo->supportedCodecs().size() > 0) {
+ list << "audio/x-wav";
+ list << "audio/pcm";
+ }
+ }
+ return list;
+}
+
+QString AudioCaptureSession::containerDescription(const QString &formatMimeType) const
+{
+ if(m_deviceInfo) {
+ if (formatMimeType.contains(QLatin1String("audio/pcm")))
+ return QString(tr("RAW file format"));
+ if (formatMimeType.contains(QLatin1String("audio/x-wav")))
+ return QString(tr("WAV file format"));
+ }
+ return QString();
+}
+
+void AudioCaptureSession::setContainerMimeType(const QString &formatMimeType)
+{
+ if (!formatMimeType.contains(QLatin1String("audio/x-wav")) &&
+ !formatMimeType.contains(QLatin1String("audio/pcm")) &&
+ !formatMimeType.isEmpty())
+ return;
+
+ if(m_deviceInfo) {
+ if (!m_deviceInfo->supportedCodecs().contains(QLatin1String("audio/pcm")))
+ return;
+
+ if (formatMimeType.isEmpty() || formatMimeType.contains(QLatin1String("audio/x-wav"))) {
+ wavFile = true;
+ m_format.setCodec("audio/pcm");
+ } else {
+ wavFile = false;
+ m_format.setCodec(formatMimeType);
+ }
+ }
+}
+
+QString AudioCaptureSession::containerMimeType() const
+{
+ if(wavFile)
+ return QString("audio/x-wav");
+
+ return QString("audio/pcm");
+}
+
+QUrl AudioCaptureSession::outputLocation() const
+{
+ return m_actualSink;
+}
+
+bool AudioCaptureSession::setOutputLocation(const QUrl& sink)
+{
+ m_sink = m_actualSink = sink;
+ return true;
+}
+
+qint64 AudioCaptureSession::position() const
+{
+ return m_position;
+}
+
+int AudioCaptureSession::state() const
+{
+ return int(m_state);
+}
+
+QDir AudioCaptureSession::defaultDir() const
+{
+ QStringList dirCandidates;
+
+#if defined(Q_WS_MAEMO_5) || defined(Q_WS_MAEMO_6)
+ dirCandidates << QLatin1String("/home/user/MyDocs");
+#endif
+
+ dirCandidates << QDir::home().filePath("Documents");
+ dirCandidates << QDir::home().filePath("My Documents");
+ dirCandidates << QDir::homePath();
+ dirCandidates << QDir::currentPath();
+ dirCandidates << QDir::tempPath();
+
+ foreach (const QString &path, dirCandidates) {
+ QDir dir(path);
+ if (dir.exists() && QFileInfo(path).isWritable())
+ return dir;
+ }
+
+ return QDir();
+}
+
+QString AudioCaptureSession::generateFileName(const QDir &dir, const QString &ext) const
+{
+
+ int lastClip = 0;
+ foreach(QString fileName, dir.entryList(QStringList() << QString("clip_*.%1").arg(ext))) {
+ int imgNumber = fileName.mid(5, fileName.size()-6-ext.length()).toInt();
+ lastClip = qMax(lastClip, imgNumber);
+ }
+
+ QString name = QString("clip_%1.%2").arg(lastClip+1,
+ 4, //fieldWidth
+ 10,
+ QLatin1Char('0')).arg(ext);
+
+ return dir.absoluteFilePath(name);
+}
+
+void AudioCaptureSession::record()
+{
+ if(!m_audioInput) {
+ setFormat(m_format);
+ }
+
+ m_actualSink = m_sink;
+
+ if (m_actualSink.isEmpty()) {
+ QString ext = wavFile ? QLatin1String("wav") : QLatin1String("raw");
+ m_actualSink = generateFileName(defaultDir(), ext);
+ }
+
+ if(m_actualSink.toLocalFile().length() > 0)
+ file.setFileName(m_actualSink.toLocalFile());
+ else
+ file.setFileName(m_actualSink.toString());
+
+ if(m_audioInput) {
+ if(m_state == QMediaRecorder::StoppedState) {
+ if(file.open(QIODevice::WriteOnly)) {
+ memset(&header,0,sizeof(CombinedHeader));
+ memcpy(header.riff.descriptor.id,"RIFF",4);
+ header.riff.descriptor.size = 0xFFFFFFFF; // This should be updated on stop(), filesize-8
+ memcpy(header.riff.type,"WAVE",4);
+ memcpy(header.wave.descriptor.id,"fmt ",4);
+ header.wave.descriptor.size = 16;
+ header.wave.audioFormat = 1; // for PCM data
+ header.wave.numChannels = m_format.channels();
+ header.wave.sampleRate = m_format.frequency();
+ header.wave.byteRate = m_format.frequency()*m_format.channels()*m_format.sampleSize()/8;
+ header.wave.blockAlign = m_format.channels()*m_format.sampleSize()/8;
+ header.wave.bitsPerSample = m_format.sampleSize();
+ memcpy(header.data.descriptor.id,"data",4);
+ header.data.descriptor.size = 0xFFFFFFFF; // This should be updated on stop(),samples*channels*sampleSize/8
+ if (wavFile)
+ file.write((char*)&header,sizeof(CombinedHeader));
+
+ m_audioInput->start(qobject_cast<QIODevice*>(&file));
+ } else {
+ emit error(1,QString("can't open source, failed"));
+ m_state = QMediaRecorder::StoppedState;
+ emit stateChanged(m_state);
+ }
+ }
+ }
+
+ m_state = QMediaRecorder::RecordingState;
+}
+
+void AudioCaptureSession::pause()
+{
+ if(m_audioInput)
+ m_audioInput->stop();
+
+ m_state = QMediaRecorder::PausedState;
+}
+
+void AudioCaptureSession::stop()
+{
+ if(m_audioInput) {
+ m_audioInput->stop();
+ file.close();
+ if (wavFile) {
+ qint32 fileSize = file.size()-8;
+ file.open(QIODevice::ReadWrite | QIODevice::Unbuffered);
+ file.read((char*)&header,sizeof(CombinedHeader));
+ header.riff.descriptor.size = fileSize; // filesize-8
+ header.data.descriptor.size = fileSize-44; // samples*channels*sampleSize/8
+ file.seek(0);
+ file.write((char*)&header,sizeof(CombinedHeader));
+ file.close();
+ }
+ m_position = 0;
+ }
+ m_state = QMediaRecorder::StoppedState;
+}
+
+void AudioCaptureSession::stateChanged(QAudio::State state)
+{
+ switch(state) {
+ case QAudio::ActiveState:
+ emit stateChanged(QMediaRecorder::RecordingState);
+ break;
+ default:
+ if(!((m_state == QMediaRecorder::PausedState)||(m_state == QMediaRecorder::StoppedState)))
+ m_state = QMediaRecorder::StoppedState;
+
+ emit stateChanged(m_state);
+ break;
+ }
+}
+
+void AudioCaptureSession::notify()
+{
+ m_position += m_audioInput->notifyInterval();
+ emit positionChanged(m_position);
+}
+
+void AudioCaptureSession::setCaptureDevice(const QString &deviceName)
+{
+ m_captureDevice = deviceName;
+ if(m_deviceInfo)
+ delete m_deviceInfo;
+
+ m_deviceInfo = 0;
+
+ QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
+ for(int i = 0; i < devices.size(); i++) {
+ if(qstrcmp(m_captureDevice.toLocal8Bit().constData(),
+ devices.at(i).deviceName().toLocal8Bit().constData())==0){
+ m_deviceInfo = new QAudioDeviceInfo(QAudioDeviceInfo::defaultInputDevice());
+ return;
+ }
+ }
+ m_deviceInfo = new QAudioDeviceInfo(QAudioDeviceInfo::defaultInputDevice());
+}
+
+
+