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#include "s60audioencodercontrol.h"
#include "s60audiocapturesession.h"

#include <QAudioFormat>

#include <QtCore/qdebug.h>

S60AudioEncoderControl::S60AudioEncoderControl(QObject *session, QObject *parent)
    :QAudioEncoderControl(parent), m_quality(QtMediaServices::NormalQuality)
{   
    m_session = qobject_cast<S60AudioCaptureSession*>(session);
    QAudioFormat fmt = m_session->format();
    // medium, 22050Hz mono S16
    fmt.setSampleType(QAudioFormat::SignedInt);
    fmt.setSampleSize(16);
    fmt.setFrequency(22050);
    fmt.setChannels(1);
    m_session->setFormat(fmt);
}

S60AudioEncoderControl::~S60AudioEncoderControl()
{
}

QStringList S60AudioEncoderControl::supportedAudioCodecs() const
{
    return m_session->supportedAudioCodecs();
}

QString S60AudioEncoderControl::audioCodec() const
{
    return m_session->format().codec();
}

bool S60AudioEncoderControl::setAudioCodec(const QString &codecName)
{
    QAudioFormat fmt = m_session->format();
    fmt.setCodec(codecName);
    return m_session->setFormat(fmt);
}

QString S60AudioEncoderControl::codecDescription(const QString &codecName) const
{
	return m_session->codecDescription(codecName);    
}

int S60AudioEncoderControl::bitRate() const
{
    return (m_session->format().frequency() * m_session->format().channels() * (m_session->format().sampleSize() / 8));
}

void S60AudioEncoderControl::setBitRate(int value)
{
    Q_UNUSED(value)
    //Note: None of the default codecs provided in the MMF support the setting of bit rates.                
}

QtMediaServices::EncodingQuality S60AudioEncoderControl::quality() const
{
    return m_quality;
}

void S60AudioEncoderControl::setQuality(QtMediaServices::EncodingQuality value)
{
    QAudioFormat fmt = m_session->format();

    switch (value) {
    case QtMediaServices::VeryLowQuality:
    case QtMediaServices::LowQuality:
        // low, 8000Hz mono U8
        fmt.setSampleType(QAudioFormat::UnSignedInt);
        fmt.setSampleSize(8);
        fmt.setFrequency(8000);
        fmt.setChannels(1);
        break;
    case QtMediaServices::NormalQuality:
        // medium, 22050Hz mono S16
        fmt.setSampleType(QAudioFormat::SignedInt);
        fmt.setSampleSize(16);
        fmt.setFrequency(22050);
        fmt.setChannels(1);
        break;
    case QtMediaServices::HighQuality:
    case QtMediaServices::VeryHighQuality:    
        // high, 44100Hz mono S16
        fmt.setSampleType(QAudioFormat::SignedInt);
        fmt.setSampleSize(16);
        fmt.setFrequency(44100);
        fmt.setChannels(1);
        break;
    default:
        break;
    }
    m_session->setFormat(fmt);
    m_quality = value;  
}

QStringList S60AudioEncoderControl::supportedEncodingOptions(const QString &codec) const
{
    Q_UNUSED(codec)
    QStringList list;
    if (codec == "PCM") 
        list << "quality" << "channels" << "samplerate";        
     return list;
}

QVariant S60AudioEncoderControl::encodingOption(const QString &codec, const QString &name) const
{
    if (codec == "PCM") {
        QAudioFormat fmt = m_session->format();
        
        if(qstrcmp(name.toLocal8Bit().constData(), "bitrate") == 0) {
            return QVariant(bitRate());
        }
        else if(qstrcmp(name.toLocal8Bit().constData(), "quality") == 0) {
            return QVariant(quality());
        }        
        else if(qstrcmp(name.toLocal8Bit().constData(), "channels") == 0) {
            return QVariant(fmt.channels());
        }                
        else if(qstrcmp(name.toLocal8Bit().constData(), "samplerate") == 0) {
            return QVariant(fmt.frequency());
        }       
    }
    return QVariant();
}

void S60AudioEncoderControl::setEncodingOption(
        const QString &codec, const QString &name, const QVariant &value)
{
    if (codec == "PCM") {        
        if(qstrcmp(name.toLocal8Bit().constData(), "bitrate") == 0) {
            setBitRate(value.toInt());
        } else if(qstrcmp(name.toLocal8Bit().constData(), "quality") == 0) {
            setQuality((QtMediaServices::EncodingQuality)value.toInt());
        } else if(qstrcmp(name.toLocal8Bit().constData(), "channels") == 0) {
            setChannelCount(value.toInt());
        } else if(qstrcmp(name.toLocal8Bit().constData(), "samplerate") == 0) {
            setSampleRate(value.toInt());       
        }        
    }
}

int S60AudioEncoderControl::sampleRate() const
{
    return m_session->format().frequency();
}

void S60AudioEncoderControl::setSampleRate(int sampleRate)
{
    QAudioFormat fmt = m_session->format();
    fmt.setFrequency(sampleRate);
    m_session->setFormat(fmt);
}

QList<int> S60AudioEncoderControl::supportedSampleRates(const QAudioEncoderSettings &settings, bool *continuous) const
{
    if (continuous)
        *continuous = false;
    
    return m_session->supportedAudioSampleRates(settings);       
}

int S60AudioEncoderControl::channelCount() const
{
    return m_session->format().channels();
}

void S60AudioEncoderControl::setChannelCount(int channels)
{
    QAudioFormat fmt = m_session->format();
    fmt.setChannels(channels);
    m_session->setFormat(fmt);
}

int S60AudioEncoderControl::sampleSize() const
{
    return m_session->format().sampleSize();
}

void S60AudioEncoderControl::setSampleSize(int sampleSize)
{
    QAudioFormat fmt = m_session->format();
    fmt.setSampleSize(sampleSize);
    m_session->setFormat(fmt);
}

QAudioEncoderSettings S60AudioEncoderControl::audioSettings() const
{
    QAudioEncoderSettings settings;
    settings.setCodec(audioCodec());
    settings.setBitRate(bitRate());
    settings.setQuality(quality());
    settings.setSampleRate(sampleRate());
    settings.setChannelCount(channelCount());
    return settings;
}

void S60AudioEncoderControl::setAudioSettings(const QAudioEncoderSettings &settings)
{
    if (settings.encodingMode() == QtMediaServices::ConstantQualityEncoding) {             
        setAudioCodec(settings.codec());
        setQuality(settings.quality());
        if (settings.sampleRate() > 0)
            setSampleRate(settings.sampleRate());   
        if (settings.channelCount() > 0)
            setChannelCount(settings.channelCount());
    }else {        
        setAudioCodec(settings.codec());        
        setSampleRate(settings.sampleRate());
        setChannelCount(settings.channelCount());
    }    
}