No A/V/ delay taken into account

[Selur]

OK, and what about the film, you can display with SMplayer ? Is the audio sync with the video ? Especially when the ball is touching the groundfloor (about 45-50 s) ?

I looked at the file with MPC-HC (on Windows).
Both streams of the input clip are synch here.
Clip produced the way I wrote above (+ I set video to passthrough, to not having to reencode the video) also is sync for all four audio streams.
Haven't used SMPlayer for ages.

I will do all those lines, as you did them. And will come back later.

Remember to properly write down what you do exactly.

Cu Selur

Ps.: Please do not do full quotes of posts, since it is really annoying to having to scroll to all the previously posted content.