Initial copy of QtMultimediaKit.

Comes from original repo, with SHA1: 2c82d5611655e5967f5c5095af50c0991c4378b2
2011-06-29 13:38:46 +10:00
commit 2a34e88c1e
1048 changed files with 206259 additions and 0 deletions
--- a/src/plugins/audiocapture/audioencodercontrol.cpp
+++ b/src/plugins/audiocapture/audioencodercontrol.cpp
@@ -0,0 +1,168 @@
+/****************************************************************************
+**
+** 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 "audioencodercontrol.h"
+#include "audiocapturesession.h"
+
+#include <qaudioformat.h>
+
+#include <QtCore/qdebug.h>
+
+AudioEncoderControl::AudioEncoderControl(QObject *parent)
+    :QAudioEncoderControl(parent)
+{
+    m_session = qobject_cast<AudioCaptureSession*>(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(QtMultimediaKit::ConstantQualityEncoding);
+    m_settings.setCodec("audio/pcm");
+    m_settings.setBitRate(8000);
+    m_settings.setChannelCount(1);
+    m_settings.setSampleRate(8000);
+    m_settings.setQuality(QtMultimediaKit::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 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<int> 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() == QtMultimediaKit::ConstantQualityEncoding) {
+        if (settings.quality() == QtMultimediaKit::LowQuality) {
+            fmt.setSampleSize(8);
+            fmt.setChannels(1);
+            fmt.setFrequency(8000);
+            fmt.setSampleType(QAudioFormat::UnSignedInt);
+
+        } else if (settings.quality() == QtMultimediaKit::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;
+}