Details
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Bug
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Resolution: Out of scope
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P2: Important
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None
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5.13.1
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None
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Linux/X11
Description
I have a local nginx server and 4 sec ogg files with opus stream inside.
I can try to play this file with VLC or for example with
gst-launch-1.0 -m souphttpsrc location=http://127.0.0.1/test.ogg ! decodebin ! progressreport update-freq=1 ! audioconvert ! audioresample ! autoaudiosink
Both report correct position and duration.
But with QMediaPlayer only position is reported properly while duration looks somewhat random.
If instead of http I load the same file with file:// it's duration is detected properly. So it's purely http-related problem.
Also if I recode this file to mpeg4 container (still with opus) then duration is always reported correctly regardless of file source.
I also tried to fully recode the file to pcm and back to ogg+opus to make sure it's not anyhow damaged but results are the same.
Below is the code I used for testing
#include <QDebug> #include <QMediaPlayer> #include <QtCore/QCoreApplication> using namespace std; int main(int argc, char* argv[]) { QCoreApplication app(argc, argv); auto mp = new QMediaPlayer(); mp->connect(mp, &QMediaPlayer::durationChanged, &app, [](qint64 d) { qDebug("duration=%lld", d); }); mp->connect(mp, &QMediaPlayer::positionChanged, &app, [](qint64 p) { qDebug("position=%lld", p); }); mp->connect(mp, &QMediaPlayer::mediaStatusChanged, &app, [](QMediaPlayer::MediaStatus status) { qDebug() << "status=" << status; if (status >= QMediaPlayer::EndOfMedia) qApp->quit(); }); auto src = "http://localhost/test.ogg"; QUrl url(src); qDebug() << url; mp->setMedia(QMediaContent(url)); mp->play(); return app.exec(); }
And output may look like following (no duration reported at all and position jumped to 0 in the end)
QUrl("http://localhost/test.ogg")
position=0
status= QMediaPlayer::LoadingMedia
position=0
status= QMediaPlayer::BufferedMedia
position=0
position=839
position=1792
position=2743
position=3691
position=0
status= QMediaPlayer::EndOfMedia
or like this (wrong duration and weird position jumps)
QUrl("http://localhost/test.ogg")
position=0
status= QMediaPlayer::LoadingMedia
position=0
duration=1533
status= QMediaPlayer::BufferedMedia
position=0
status= QMediaPlayer::StalledMedia
status= QMediaPlayer::BufferedMedia
status= QMediaPlayer::StalledMedia
status= QMediaPlayer::BufferedMedia
position=0
position=929
position=1980
position=3030
position=4030
position=1533
status= QMediaPlayer::EndOfMedia