Hi everybody,
If any of you are using the QGst library but could not figure out how to use the QGst::StreamVolume functionality (like once I did :) this is the right place.
Using QGst::StreamVolume is fairly simple. You just have to create a pipeline from the playbin2 element that will play the audio/video (as in the Player example
http://gstreamer.freedesktop.org/data/doc/gstreamer/head/qt-gstreamer/html/player_2main_8cpp-example.html)
then create a stream volume and cast the pipeline to stream volume as follows:
// Don't forget to include the headers first
#include <QGst/Pipeline>
#include <QGst/StreamVolume>
QGst::PipelinePtr m_pipeline = QGst::ElementFactory::make("playbin2").dynamicCast<QGst::Pipeline>();
QGst::StreamVolumePtr m_streamVolume = m_pipeline.dynamicCast<QGst::StreamVolume>();
Then you can use the stream volume functions setVolume(), volume() and setMuted(), isMuted() to set the volume or mute your audio/video.
You can find the last version of the Player example with added volume control here:
https://bugzilla.gnome.org/show_bug.cgi?id=649040Thanks to for all their help and advice. Hope this would be useful to all.
Mert Tas
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