not getting proper metadata from a media file .

[saber]

i made a function to get the metadata .
but i am not getting all the metadata .example like duration.

        QStringList infos;
        QStringList metadatalist = m_player->availableMetaData();
        int list_size = metadatalist.size();
        QString metadata_key;
        QVariant var_data;

        for (int indx = 0; indx < list_size; indx++)
        {
            metadata_key  = metadatalist.at(indx);
            var_data      = m_player->metaData(metadata_key);

            infos << QString(metadata_key + QString(" : %1").arg(var_data.toString()));
        }

i am not getting duration for example.

but i am getting duration by this code

float pi = m_player->duration()/60001;

what is wrong?

[mrjj]

@saber
Hi
Maybe duration is not included in the meta data.
m_player->duration() not from meta data as far as i know.

[saber]

@mrjj
ok got that.
another issue .

float pi = m_player->duration()/60001;

dose giving me a round number(5,9,8) instead of float number (3.5,2.5).

[mrjj]

@saber
Hi
Try
float pi = m_player->duration()/60001.0; // note the extra .0

if m_player->duration() returns INT
float pi = (float)m_player->duration()/60001.0;

or the very c++ way
float pi = static_cast<float>(m_player->duration())/60001;

[saber]

here is the final function

//in constractor

m_player = new QMediaPlayer(this);
        m_player->setMedia(QUrl::fromLocalFile(pathName));
        connect(m_player, SIGNAL(mediaStatusChanged(QMediaPlayer::MediaStatus)),
                this, SLOT(detailmedia(QMediaPlayer::MediaStatus)));

void propertiesw::detailmedia(QMediaPlayer::MediaStatus status)
{
    if (status == QMediaPlayer::LoadedMedia){

         QStringList infos;
        QStringList metadatalist = m_player->availableMetaData();
        int list_size = metadatalist.size();
        QString metadata_key;
        QVariant var_data;

        for (int indx = 0; indx < list_size; indx++)
        {
            metadata_key  = metadatalist.at(indx);
            var_data      = m_player->metaData(metadata_key);

            infos << QString(metadata_key + QString(" : %1").arg(var_data.toString()));
        }

        float pi = m_player->duration()/60000.0;

        infos << QString("Duration"+ QString(" : %1").arg(QString::number(pi)));
    }
}

[mrjj]

ok :)
so .0 was enough ?

[saber]

@mrjj

yes.
as simple as can be.