Wrong video length after mkvmerge trim!

[pippopamp]

Hi guys, I've a problem using mkvmerge 2.5.1.

I've a mkv video with a length (hh:mm:ss.ms) of 00:20:12.500 and
I would like to trim it at length 00:20:07:460. So I check "Enable splitting..." on Global menu of mkvmerge GUI and insert 00:20:07:460 on box "...after this duration".

As result I obtain a video with a length of 00:20:10.200?!? :confused:

It may be there's a bug on mkvtoolnix? Please help me!

[ash925]

AFAIK if the vid is a h264 encoded one,the vid will be cut at the last nearest keyframe.

[pippopamp]

AFAIK if the vid is a h264 encoded one,the vid will be cut at the last nearest keyframe.

Thanks! Yes, the vid is a x264 encoded...now I'll check the last nearest keyframe!