Create an FFmpeg-based QtMultimedia backend

[mmatyas]

[tcamargo]

Hi. Isn't libav gst backend based on ffmpeg? Anyhow, i am facing problems with video snaps for arcade games. Not sure it is related with your need for a ffmpeg qt backend.

Thanks!

[mmatyas]

Hi, yes, on Linux you can use that too (eg. gstreamer1.0-libav). As for other platforms, Qt uses different multimedia backends, but what they support or how performant they are varies. This issue is about creating one that's available and works the same on all targets, for which FFmpeg seems like a good candidate.

[tcamargo]

Hi! Thanks for the explanation! Would you have any tip to debug playback problems with qtmultimedia/gst?

[mmatyas]

(replied in the linked issue)