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    41 

    42 #include "s60audioencodercontrol.h"

    43 #include "s60audiocapturesession.h"

    44 

    45 #include <QAudioFormat>

    46 

    47 #include <QtCore/qdebug.h>

    48 

    49 S60AudioEncoderControl::S60AudioEncoderControl(QObject *parent)

    50     :QAudioEncoderControl(parent)

    51 {

    52     QAudioFormat fmt;

    53     fmt.setSampleSize(8);

    54     fmt.setChannels(1);

    55     fmt.setFrequency(8000);

    56     fmt.setSampleType(QAudioFormat::SignedInt);

    57     //fmt.setCodec("audio/pcm");

    58 

    59     m_session = qobject_cast<S60AudioCaptureSession*>(parent);

    60 }

    61 

    62 S60AudioEncoderControl::~S60AudioEncoderControl()

    63 {

    64 }

    65 

    66 QStringList S60AudioEncoderControl::supportedAudioCodecs() const

    67 {

    68     return m_session->supportedAudioCodecs();

    69 }

    70 

    71 QString S60AudioEncoderControl::audioCodec() const

    72 {

    73     return m_session->format().codec();

    74 }

    75 

    76 bool S60AudioEncoderControl::setAudioCodec(const QString &codecName)

    77 {

    78     QAudioFormat fmt = m_session->format();

    79     fmt.setCodec(codecName);

    80     return m_session->setFormat(fmt);

    81 }

    82 

    83 QString S60AudioEncoderControl::codecDescription(const QString &codecName) const

    84 {

    85 	return m_session->codecDescription(codecName);

    86     /*

    87 	if(qstrcmp(codecName.toLocal8Bit().constData(), "audio/x-wav") == 0)

    88         return QString("wav file format");

    89 

    90     return QString();

    91     */

    92 }

    93 

    94 int S60AudioEncoderControl::bitRate() const

    95 {

    96     return (m_session->format().frequency() * m_session->format().channels() * (m_session->format().sampleSize() / 8));

    97 }

    98 

    99 void S60AudioEncoderControl::setBitRate(int value)

   100 {

   101     QAudioFormat fmt = m_session->format();

   102 

   103     if(value <= 8) {

   104         // low, 8000Hz mono U8

   105         fmt.setSampleType(QAudioFormat::UnSignedInt);

   106         fmt.setSampleSize(8);

   107         fmt.setFrequency(8000);

   108         fmt.setChannels(1);

   109 

   110     } else if(value <= 44) {

   111         // medium, 22050Hz mono S16

   112         fmt.setSampleType(QAudioFormat::SignedInt);

   113         fmt.setSampleSize(16);

   114         fmt.setFrequency(22050);

   115         fmt.setChannels(1);

   116 

   117     } else {

   118         // high, 44100Hz mono S16

   119         fmt.setSampleType(QAudioFormat::SignedInt);

   120         fmt.setSampleSize(16);

   121         fmt.setFrequency(44100);

   122         fmt.setChannels(1);

   123 

   124     }

   125     m_session->setFormat(fmt);

   126 }

   127 

   128 QtMedia::EncodingQuality S60AudioEncoderControl::quality() const

   129 {

   130     return QtMedia::NormalQuality;

   131 }

   132 

   133 void S60AudioEncoderControl::setQuality(QtMedia::EncodingQuality value)

   134 {

   135     Q_UNUSED(value)

   136 }

   137 

   138 QStringList S60AudioEncoderControl::supportedEncodingOptions(const QString &codec) const

   139 {

   140     Q_UNUSED(codec)

   141 

   142     QStringList list;

   143     return list;

   144 }

   145 

   146 QVariant S60AudioEncoderControl::encodingOption(const QString &codec, const QString &name) const

   147 {

   148     Q_UNUSED(codec)

   149 	QAudioFormat fmt = m_session->format();

   150     

   151     if(qstrcmp(name.toLocal8Bit().constData(), "bitrate") == 0) {

   152         return QVariant(fmt.frequency());

   153     }

   154 

   155     return QVariant();

   156 }

   157 

   158 void S60AudioEncoderControl::setEncodingOption(

   159         const QString &codec, const QString &name, const QVariant &value)

   160 {

   161     Q_UNUSED(value)

   162     Q_UNUSED(codec)

   163 

   164     //QAudioFormat fmt = m_session->format();

   165 

   166     if(qstrcmp(name.toLocal8Bit().constData(), "bitrate") == 0) {

   167 		setBitRate(value.toInt());

   168 

   169     } else if(qstrcmp(name.toLocal8Bit().constData(), "quality") == 0) {

   170         setQuality((QtMedia::EncodingQuality)value.toInt());

   171 

   172     } else

   173         qWarning() << "option: " << name << " is an unknown option!";

   174 }

   175 

   176 int S60AudioEncoderControl::sampleRate() const

   177 {

   178     return m_session->format().frequency();

   179 }

   180 

   181 void S60AudioEncoderControl::setSampleRate(int sampleRate)

   182 {

   183     QAudioFormat fmt = m_session->format();

   184     fmt.setFrequency(sampleRate);

   185     m_session->setFormat(fmt);

   186 }

   187 

   188 QList<int> S60AudioEncoderControl::supportedSampleRates(const QAudioEncoderSettings &settings, bool *continuous) const

   189 {

   190     if (continuous)

   191         *continuous = false;

   192 

   193     //TODO: return supported sample rates

   194     return QList<int>(); //m_session->deviceInfo()->supportedFrequencies();

   195 }

   196 

   197 int S60AudioEncoderControl::channelCount() const

   198 {

   199     return m_session->format().channels();

   200 }

   201 

   202 void S60AudioEncoderControl::setChannelCount(int channels)

   203 {

   204     QAudioFormat fmt = m_session->format();

   205     fmt.setChannels(channels);

   206     m_session->setFormat(fmt);

   207 }

   208 

   209 QList<int> S60AudioEncoderControl::supportedChannelCounts() const

   210 {

   211     return QList<int>() << 1 << 2;

   212 }

   213 

   214 int S60AudioEncoderControl::sampleSize() const

   215 {

   216     return m_session->format().sampleSize();

   217 }

   218 

   219 void S60AudioEncoderControl::setSampleSize(int sampleSize)

   220 {

   221     QAudioFormat fmt = m_session->format();

   222     fmt.setSampleSize(sampleSize);

   223     m_session->setFormat(fmt);

   224 }

   225 

   226 QList<int> S60AudioEncoderControl::supportedSampleSizes() const

   227 {

   228     //QList<int> sizes = m_session->deviceInfo()->supportedSampleSizes();

   229     return QList<int>(); //sizes;

   230 }

   231 

   232 QAudioEncoderSettings S60AudioEncoderControl::audioSettings() const

   233 {

   234     QAudioEncoderSettings settings;

   235     settings.setCodec(audioCodec());

   236     settings.setBitRate(bitRate());

   237     settings.setQuality(quality());

   238     settings.setSampleRate(sampleRate());

   239     settings.setChannelCount(channelCount());

   240     return settings;

   241 }

   242 

   243 void S60AudioEncoderControl::setAudioSettings(const QAudioEncoderSettings &settings)

   244 {

   245     setAudioCodec(settings.codec());

   246     setBitRate(settings.bitRate());

   247     setQuality(settings.quality());

   248     setSampleRate(settings.sampleRate());

   249     setChannelCount(settings.channelCount());

   250 }