qtmobility/plugins/multimedia/gstreamer/mediaplayer/qgstreamermetadataprovider.cpp
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#include "qgstreamermetadataprovider.h"
#include "qgstreamerplayersession.h"
#include <QDebug>
#include <gst/gstversion.h>
struct QGstreamerMetaDataKeyLookup
{
QtMultimedia::MetaData key;
const char *token;
};
static const QGstreamerMetaDataKeyLookup qt_gstreamerMetaDataKeys[] =
{
{ QtMultimedia::Title, GST_TAG_TITLE },
//{ QtMultimedia::SubTitle, 0 },
//{ QtMultimedia::Author, 0 },
{ QtMultimedia::Comment, GST_TAG_COMMENT },
{ QtMultimedia::Description, GST_TAG_DESCRIPTION },
//{ QtMultimedia::Category, 0 },
{ QtMultimedia::Genre, GST_TAG_GENRE },
{ QtMultimedia::Year, "year" },
//{ QtMultimedia::UserRating, 0 },
{ QtMultimedia::Language, GST_TAG_LANGUAGE_CODE },
{ QtMultimedia::Publisher, GST_TAG_ORGANIZATION },
{ QtMultimedia::Copyright, GST_TAG_COPYRIGHT },
//{ QtMultimedia::ParentalRating, 0 },
//{ QtMultimedia::RatingOrganisation, 0 },
// Media
//{ QtMultimedia::Size, 0 },
//{ QtMultimedia::MediaType, 0 },
{ QtMultimedia::Duration, GST_TAG_DURATION },
// Audio
{ QtMultimedia::AudioBitRate, GST_TAG_BITRATE },
{ QtMultimedia::AudioCodec, GST_TAG_AUDIO_CODEC },
//{ QtMultimedia::ChannelCount, 0 },
//{ QtMultimedia::SampleRate, 0 },
// Music
{ QtMultimedia::AlbumTitle, GST_TAG_ALBUM },
{ QtMultimedia::AlbumArtist, GST_TAG_ARTIST},
{ QtMultimedia::ContributingArtist, GST_TAG_PERFORMER },
#if (GST_VERSION_MAJOR >= 0) && (GST_VERSION_MINOR >= 10) && (GST_VERSION_MICRO >= 19)
{ QtMultimedia::Composer, GST_TAG_COMPOSER },
#endif
//{ QtMultimedia::Conductor, 0 },
//{ QtMultimedia::Lyrics, 0 },
//{ QtMultimedia::Mood, 0 },
{ QtMultimedia::TrackNumber, GST_TAG_TRACK_NUMBER },
//{ QtMultimedia::CoverArtUrlSmall, 0 },
//{ QtMultimedia::CoverArtUrlLarge, 0 },
// Image/Video
//{ QtMultimedia::Resolution, 0 },
//{ QtMultimedia::PixelAspectRatio, 0 },
// Video
//{ QtMultimedia::VideoFrameRate, 0 },
//{ QtMultimedia::VideoBitRate, 0 },
{ QtMultimedia::VideoCodec, GST_TAG_VIDEO_CODEC },
//{ QtMultimedia::PosterUrl, 0 },
// Movie
//{ QtMultimedia::ChapterNumber, 0 },
//{ QtMultimedia::Director, 0 },
{ QtMultimedia::LeadPerformer, GST_TAG_PERFORMER },
//{ QtMultimedia::Writer, 0 },
// Photos
//{ QtMultimedia::CameraManufacturer, 0 },
//{ QtMultimedia::CameraModel, 0 },
//{ QtMultimedia::Event, 0 },
//{ QtMultimedia::Subject, 0 }
};
QGstreamerMetaDataProvider::QGstreamerMetaDataProvider(QGstreamerPlayerSession *session, QObject *parent)
:QMetaDataReaderControl(parent), m_session(session)
{
connect(m_session, SIGNAL(tagsChanged()), SLOT(updateTags()));
}
QGstreamerMetaDataProvider::~QGstreamerMetaDataProvider()
{
}
bool QGstreamerMetaDataProvider::isMetaDataAvailable() const
{
return !m_session->tags().isEmpty();
}
bool QGstreamerMetaDataProvider::isWritable() const
{
return false;
}
QVariant QGstreamerMetaDataProvider::metaData(QtMultimedia::MetaData key) const
{
static const int count = sizeof(qt_gstreamerMetaDataKeys) / sizeof(QGstreamerMetaDataKeyLookup);
for (int i = 0; i < count; ++i) {
if (qt_gstreamerMetaDataKeys[i].key == key) {
return m_session->tags().value(QByteArray(qt_gstreamerMetaDataKeys[i].token));
}
}
return QVariant();
}
QList<QtMultimedia::MetaData> QGstreamerMetaDataProvider::availableMetaData() const
{
static QMap<QByteArray, QtMultimedia::MetaData> keysMap;
if (keysMap.isEmpty()) {
const int count = sizeof(qt_gstreamerMetaDataKeys) / sizeof(QGstreamerMetaDataKeyLookup);
for (int i = 0; i < count; ++i) {
keysMap[QByteArray(qt_gstreamerMetaDataKeys[i].token)] = qt_gstreamerMetaDataKeys[i].key;
}
}
QList<QtMultimedia::MetaData> res;
foreach (const QByteArray &key, m_session->tags().keys()) {
QtMultimedia::MetaData tag = keysMap.value(key, QtMultimedia::MetaData(-1));
if (tag != -1)
res.append(tag);
}
return res;
}
QVariant QGstreamerMetaDataProvider::extendedMetaData(const QString &key) const
{
return m_session->tags().value(key.toLatin1());
}
QStringList QGstreamerMetaDataProvider::availableExtendedMetaData() const
{
QStringList res;
foreach (const QByteArray &key, m_session->tags().keys())
res.append(QString(key));
return res;
}
void QGstreamerMetaDataProvider::updateTags()
{
emit metaDataChanged();
}