Unsync audio

[pandasoli]

I just downloaded the source code from master commit number 1b71921, and compile this way:

$ meson build --prefix=/usr --buildtype=release
$ ninja -C build

And ran this way:

$ ./build/wf-recorder -a -f output.mp4

And the audio happens way before than the video, why?
Is there a way to fix it?

output.mp4