diff -r cfcbf08528c4 -r 2b40d63a9c3d qtmobility/plugins/multimedia/audiocapture/audioencodercontrol.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/qtmobility/plugins/multimedia/audiocapture/audioencodercontrol.cpp Fri Apr 16 15:51:22 2010 +0300 @@ -0,0 +1,168 @@ +/**************************************************************************** +** +** Copyright (C) 2009 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 "audioencodercontrol.h" +#include "audiocapturesession.h" + +#include + +#include + +AudioEncoderControl::AudioEncoderControl(QObject *parent) + :QAudioEncoderControl(parent) +{ + m_session = qobject_cast(parent); + + QT_PREPEND_NAMESPACE(QAudioFormat) fmt; + fmt.setSampleSize(8); + fmt.setChannels(1); + fmt.setFrequency(8000); + fmt.setSampleType(QT_PREPEND_NAMESPACE(QAudioFormat)::SignedInt); + fmt.setCodec("audio/pcm"); + fmt.setByteOrder(QAudioFormat::LittleEndian); + m_session->setFormat(fmt); + + m_settings.setEncodingMode(QtMedia::ConstantQualityEncoding); + m_settings.setCodec("audio/pcm"); + m_settings.setBitRate(8000); + m_settings.setChannelCount(1); + m_settings.setSampleRate(8000); + m_settings.setQuality(QtMedia::LowQuality); +} + +AudioEncoderControl::~AudioEncoderControl() +{ +} + +QStringList AudioEncoderControl::supportedAudioCodecs() const +{ + QStringList list; + if (m_session->supportedContainers().size() > 0) + list.append("audio/pcm"); + + return list; +} + +QString AudioEncoderControl::codecDescription(const QString &codecName) const +{ + if (codecName.contains(QLatin1String("audio/pcm"))) + return QString(tr("PCM audio data")); + + return QString(); +} + +QStringList AudioEncoderControl::supportedEncodingOptions(const QString &codec) const +{ + Q_UNUSED(codec) + + QStringList list; + return list; +} + +QVariant AudioEncoderControl::encodingOption(const QString &codec, const QString &name) const +{ + Q_UNUSED(codec) + Q_UNUSED(name) + + return QVariant(); +} + +void AudioEncoderControl::setEncodingOption( + const QString &codec, const QString &name, const QVariant &value) +{ + Q_UNUSED(value) + Q_UNUSED(codec) + Q_UNUSED(name) +} + +QList AudioEncoderControl::supportedSampleRates(const QAudioEncoderSettings &, bool *continuous) const +{ + if (continuous) + *continuous = false; + + return m_session->deviceInfo()->supportedFrequencies(); +} + +QAudioEncoderSettings AudioEncoderControl::audioSettings() const +{ + return m_settings; +} + +void AudioEncoderControl::setAudioSettings(const QAudioEncoderSettings &settings) +{ + QAudioFormat fmt = m_session->format(); + + if (settings.encodingMode() == QtMedia::ConstantQualityEncoding) { + if (settings.quality() == QtMedia::LowQuality) { + fmt.setSampleSize(8); + fmt.setChannels(1); + fmt.setFrequency(8000); + fmt.setSampleType(QAudioFormat::UnSignedInt); + + } else if (settings.quality() == QtMedia::NormalQuality) { + fmt.setSampleSize(16); + fmt.setChannels(1); + fmt.setFrequency(22050); + fmt.setSampleType(QAudioFormat::SignedInt); + + } else { + fmt.setSampleSize(16); + fmt.setChannels(1); + fmt.setFrequency(44100); + fmt.setSampleType(QAudioFormat::SignedInt); + } + + } else { + fmt.setChannels(settings.channelCount()); + fmt.setFrequency(settings.sampleRate()); + if (settings.sampleRate() == 8000 && settings.bitRate() == 8000) { + fmt.setSampleType(QAudioFormat::UnSignedInt); + fmt.setSampleSize(8); + } else { + fmt.setSampleSize(16); + fmt.setSampleType(QAudioFormat::SignedInt); + } + } + fmt.setCodec("audio/pcm"); + + m_session->setFormat(fmt); + m_settings = settings; +}