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I am creating a video player if Phonon and Qt. everything is working fine, but when I have a video in my playlist that does not have audio I wish to play another audio.
how can I do that? I mean, how can I detect that the video has no audio?
EDIT: By no audio I meant “no audio channel”
Qt 5 might help you out. Check out Phonon::Gstreamer::MediaObject. The API is similar to the ordinary MediaObject, but with some additional functions. The one you want is
audioAvailable().