QMediaPlayer : Getting information about audio streams
I would like to get information about the audio streams of the video loaded into QMediaPlayer.
By searching the Qt sources, I have found that apparently to get this information, I need to access QMediaStreamsControl via this command :
QMediaStreamsControl* streamControl = (QMediaStreamsControl*)(player->service()->requestControl(QMediaStreamsControl_iid));
However, the above always returns zero.
Does someone know why, or another way of accessing streams information ?
Not all plugins provide all control. Which platform are you on ?
On a side note, you should either use
qobject_castor the templated version of requestControl.
I'm on Windows, and other tools have no trouble accessing that information.
But this problem is only the latest addition to a too long list of features that don't work.
Frankly, I'm quite disappointed with the quality of Multimedia compared with other Qt components.
That's not necessarily a feature that doesn't work, it might just have not been implemented yet.