Trim bug ?

[Sergejack]

I encoded a video using trim (0,xxxx) to keep the first xxxx frames.
How is that that a sub I used with the source file doesn't synhronize with the resulting file ?
The sub shows too early in the trimed vid. :(

[Mug Funky]

we need a little more info than that.

i'm 99% sure it's a problem with the sub, not with trim. maybe it's placing the subs in proportion to the length of the video (why it would do that i have no idea...). maybe it's getting the wrong framerate or assuming the wrong timecode (drop vs non-drop would do this), but i can't see how avs would have caused these issues.

what are you subbing with?

[Sergejack]

ass, and I use VSFilter to render it.

I'm wondering if the problem wouldn't rather come from the X264 encode wich use B-Frame.
I think some B-Frame can be lost in some cases...
I'll ask on the x264 dev thread.