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****************************************************************************/

#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 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<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;

}