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lestat_rm0
15th March 2005, 10:49
I encoded a piece of video with x264 and put it in MP4 container by mp4creator (from mpeg4iptools-1.2.5CVS 18/01/2005);

then I wanted to put the MP4 in a MKV file (using mkvtoolnix-unicode-1.4.0), but I got that

error "The video track does not start with a key frame but contains B frames. This is not supported."

whereas, if I convert a Nero Recode's MP4 -> MKV, everything is OK.

Where is the problem?

Whose fault is it? mkvmerge? x264? mine?

thanks a lot

bond
15th March 2005, 11:12
propably mp4creator 1.2.5 included a bug that is fixed now, make sure to use always the latest version (which is 1.2.10 atm)

Mosu
15th March 2005, 11:14
This is indeed a known bug in mp4creator < 1.2.10.

lestat_rm0
16th March 2005, 11:35
I got the latest mpeg4iptools and everything went fine.

Thank you all :)