QMediaPlayer : Getting information about audio streams

Harry123

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 ?

SGaist

Hi,

Not all plugins provide all control. Which platform are you on ?

On a side note, you should either use qobject_cast or the templated version of requestControl.

Harry123

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.

SGaist

That's not necessarily a feature that doesn't work, it might just have not been implemented yet.