2732e23887
- Renamed LICENSE.LGPL to LICENSE.LGPLv21 - Added LICENSE.LGPLv3 & LICENSE.GPLv2 - Removed LICENSE.GPL Change-Id: Ied06887225df341064c12bcc14c259ae74116f2e Reviewed-by: Jani Heikkinen <jani.heikkinen@digia.com>
404 lines
12 KiB
C++
404 lines
12 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2014 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL21$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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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, Digia gives you certain additional
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** rights. These rights are described in the Digia 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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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtCore/qdebug.h>
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#include <QtCore/qurl.h>
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#include <QtCore/qdir.h>
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#include <qaudiodeviceinfo.h>
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#include "qmediarecorder.h"
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#include "audiocapturesession.h"
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#include "audiocaptureprobecontrol.h"
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QT_BEGIN_NAMESPACE
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void FileProbeProxy::startProbes(const QAudioFormat &format)
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{
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m_format = format;
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}
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void FileProbeProxy::stopProbes()
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{
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m_format = QAudioFormat();
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}
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void FileProbeProxy::addProbe(AudioCaptureProbeControl *probe)
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{
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QMutexLocker locker(&m_probeMutex);
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if (m_probes.contains(probe))
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return;
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m_probes.append(probe);
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}
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void FileProbeProxy::removeProbe(AudioCaptureProbeControl *probe)
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{
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QMutexLocker locker(&m_probeMutex);
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m_probes.removeOne(probe);
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}
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qint64 FileProbeProxy::writeData(const char *data, qint64 len)
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{
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if (m_format.isValid()) {
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QMutexLocker locker(&m_probeMutex);
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foreach (AudioCaptureProbeControl* probe, m_probes)
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probe->bufferProbed(data, len, m_format);
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}
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return QFile::writeData(data, len);
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}
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AudioCaptureSession::AudioCaptureSession(QObject *parent)
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: QObject(parent)
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, m_state(QMediaRecorder::StoppedState)
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, m_status(QMediaRecorder::UnloadedStatus)
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, m_audioInput(0)
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, m_deviceInfo(QAudioDeviceInfo::defaultInputDevice())
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, m_wavFile(true)
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{
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m_format = m_deviceInfo.preferredFormat();
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}
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AudioCaptureSession::~AudioCaptureSession()
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{
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setState(QMediaRecorder::StoppedState);
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}
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QAudioFormat AudioCaptureSession::format() const
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{
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return m_format;
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}
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void AudioCaptureSession::setFormat(const QAudioFormat &format)
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{
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m_format = format;
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}
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void AudioCaptureSession::setContainerFormat(const QString &formatMimeType)
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{
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m_wavFile = (formatMimeType.isEmpty()
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|| QString::compare(formatMimeType, QLatin1String("audio/x-wav")) == 0);
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}
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QString AudioCaptureSession::containerFormat() const
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{
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if (m_wavFile)
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return QStringLiteral("audio/x-wav");
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return QStringLiteral("audio/x-raw");
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}
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QUrl AudioCaptureSession::outputLocation() const
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{
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return m_actualOutputLocation;
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}
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bool AudioCaptureSession::setOutputLocation(const QUrl& location)
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{
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if (m_requestedOutputLocation == location)
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return false;
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m_actualOutputLocation = QUrl();
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m_requestedOutputLocation = location;
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if (m_requestedOutputLocation.isEmpty())
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return true;
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if (m_requestedOutputLocation.isValid() && (m_requestedOutputLocation.isLocalFile()
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|| m_requestedOutputLocation.isRelative())) {
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emit actualLocationChanged(m_requestedOutputLocation);
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return true;
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}
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m_requestedOutputLocation = QUrl();
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return false;
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}
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qint64 AudioCaptureSession::position() const
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{
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if (m_audioInput)
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return m_audioInput->processedUSecs() / 1000;
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return 0;
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}
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void AudioCaptureSession::setState(QMediaRecorder::State state)
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{
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if (m_state == state)
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return;
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m_state = state;
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emit stateChanged(m_state);
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switch (m_state) {
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case QMediaRecorder::StoppedState:
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stop();
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break;
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case QMediaRecorder::PausedState:
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pause();
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break;
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case QMediaRecorder::RecordingState:
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record();
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break;
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}
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}
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QMediaRecorder::State AudioCaptureSession::state() const
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{
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return m_state;
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}
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void AudioCaptureSession::setStatus(QMediaRecorder::Status status)
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{
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if (m_status == status)
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return;
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m_status = status;
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emit statusChanged(m_status);
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}
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QMediaRecorder::Status AudioCaptureSession::status() const
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{
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return m_status;
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}
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QDir AudioCaptureSession::defaultDir() const
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{
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QStringList dirCandidates;
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#if defined(Q_WS_MAEMO_6)
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dirCandidates << QLatin1String("/home/user/MyDocs");
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#endif
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dirCandidates << QDir::home().filePath("Documents");
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dirCandidates << QDir::home().filePath("My Documents");
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dirCandidates << QDir::homePath();
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dirCandidates << QDir::currentPath();
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dirCandidates << QDir::tempPath();
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foreach (const QString &path, dirCandidates) {
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QDir dir(path);
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if (dir.exists() && QFileInfo(path).isWritable())
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return dir;
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}
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return QDir();
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}
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QString AudioCaptureSession::generateFileName(const QString &requestedName,
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const QString &extension) const
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{
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if (requestedName.isEmpty())
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return generateFileName(defaultDir(), extension);
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QString path = requestedName;
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if (QFileInfo(path).isRelative())
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path = defaultDir().absoluteFilePath(path);
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if (QFileInfo(path).isDir())
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return generateFileName(QDir(path), extension);
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if (!path.endsWith(extension))
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path.append(QString(".%1").arg(extension));
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return path;
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}
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QString AudioCaptureSession::generateFileName(const QDir &dir,
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const QString &ext) const
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{
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int lastClip = 0;
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foreach(QString fileName, dir.entryList(QStringList() << QString("clip_*.%1").arg(ext))) {
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int imgNumber = fileName.midRef(5, fileName.size()-6-ext.length()).toInt();
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lastClip = qMax(lastClip, imgNumber);
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}
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QString name = QString("clip_%1.%2").arg(lastClip+1,
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4, //fieldWidth
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10,
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QLatin1Char('0')).arg(ext);
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return dir.absoluteFilePath(name);
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}
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void AudioCaptureSession::record()
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{
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if (m_status == QMediaRecorder::PausedStatus) {
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m_audioInput->resume();
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} else {
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if (m_deviceInfo.isNull()) {
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emit error(QMediaRecorder::ResourceError,
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QStringLiteral("No input device available."));
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m_state = QMediaRecorder::StoppedState;
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emit stateChanged(m_state);
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setStatus(QMediaRecorder::UnavailableStatus);
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return;
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}
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setStatus(QMediaRecorder::LoadingStatus);
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m_format = m_deviceInfo.nearestFormat(m_format);
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m_audioInput = new QAudioInput(m_deviceInfo, m_format);
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connect(m_audioInput, SIGNAL(stateChanged(QAudio::State)),
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this, SLOT(audioInputStateChanged(QAudio::State)));
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connect(m_audioInput, SIGNAL(notify()),
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this, SLOT(notify()));
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QString filePath = generateFileName(
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m_requestedOutputLocation.isLocalFile() ? m_requestedOutputLocation.toLocalFile()
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: m_requestedOutputLocation.toString(),
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m_wavFile ? QLatin1String("wav")
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: QLatin1String("raw"));
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m_actualOutputLocation = QUrl::fromLocalFile(filePath);
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if (m_actualOutputLocation != m_requestedOutputLocation)
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emit actualLocationChanged(m_actualOutputLocation);
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file.setFileName(filePath);
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setStatus(QMediaRecorder::LoadedStatus);
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setStatus(QMediaRecorder::StartingStatus);
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if (file.open(QIODevice::WriteOnly)) {
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if (m_wavFile) {
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memset(&header,0,sizeof(CombinedHeader));
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memcpy(header.riff.descriptor.id,"RIFF",4);
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header.riff.descriptor.size = 0xFFFFFFFF; // This should be updated on stop(), filesize-8
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memcpy(header.riff.type,"WAVE",4);
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memcpy(header.wave.descriptor.id,"fmt ",4);
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header.wave.descriptor.size = 16;
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header.wave.audioFormat = 1; // for PCM data
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header.wave.numChannels = m_format.channelCount();
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header.wave.sampleRate = m_format.sampleRate();
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header.wave.byteRate = m_format.sampleRate()*m_format.channelCount()*m_format.sampleSize()/8;
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header.wave.blockAlign = m_format.channelCount()*m_format.sampleSize()/8;
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header.wave.bitsPerSample = m_format.sampleSize();
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memcpy(header.data.descriptor.id,"data",4);
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header.data.descriptor.size = 0xFFFFFFFF; // This should be updated on stop(),samples*channels*sampleSize/8
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file.write((char*)&header,sizeof(CombinedHeader));
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}
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file.startProbes(m_format);
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m_audioInput->start(qobject_cast<QIODevice*>(&file));
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} else {
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delete m_audioInput;
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m_audioInput = 0;
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emit error(QMediaRecorder::ResourceError,
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QStringLiteral("Can't open output location"));
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m_state = QMediaRecorder::StoppedState;
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emit stateChanged(m_state);
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setStatus(QMediaRecorder::UnloadedStatus);
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}
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}
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}
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void AudioCaptureSession::pause()
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{
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m_audioInput->suspend();
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}
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void AudioCaptureSession::stop()
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{
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if(m_audioInput) {
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m_audioInput->stop();
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file.stopProbes();
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file.close();
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if (m_wavFile) {
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qint32 fileSize = file.size()-8;
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file.open(QIODevice::ReadWrite | QIODevice::Unbuffered);
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file.read((char*)&header,sizeof(CombinedHeader));
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header.riff.descriptor.size = fileSize; // filesize-8
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header.data.descriptor.size = fileSize-44; // samples*channels*sampleSize/8
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file.seek(0);
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file.write((char*)&header,sizeof(CombinedHeader));
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file.close();
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}
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delete m_audioInput;
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m_audioInput = 0;
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setStatus(QMediaRecorder::UnloadedStatus);
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}
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}
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void AudioCaptureSession::addProbe(AudioCaptureProbeControl *probe)
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{
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file.addProbe(probe);
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}
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void AudioCaptureSession::removeProbe(AudioCaptureProbeControl *probe)
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{
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file.removeProbe(probe);
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}
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void AudioCaptureSession::audioInputStateChanged(QAudio::State state)
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{
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switch(state) {
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case QAudio::ActiveState:
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setStatus(QMediaRecorder::RecordingStatus);
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break;
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case QAudio::SuspendedState:
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setStatus(QMediaRecorder::PausedStatus);
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break;
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case QAudio::StoppedState:
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setStatus(QMediaRecorder::FinalizingStatus);
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break;
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default:
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break;
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}
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}
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void AudioCaptureSession::notify()
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{
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emit positionChanged(position());
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}
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void AudioCaptureSession::setCaptureDevice(const QString &deviceName)
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{
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m_captureDevice = deviceName;
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QList<QAudioDeviceInfo> devices = QAudioDeviceInfo::availableDevices(QAudio::AudioInput);
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for (int i = 0; i < devices.size(); ++i) {
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QAudioDeviceInfo info = devices.at(i);
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if (m_captureDevice == info.deviceName()){
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m_deviceInfo = info;
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return;
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}
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}
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m_deviceInfo = QAudioDeviceInfo::defaultInputDevice();
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}
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QT_END_NAMESPACE
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