x264 demuxing (raw?)

[beefcake]

I have an mkv file with a x264 video stream and a NDAAC audio stream. I'm aware that x264 raw streams can be put in an avi container by avc2avi. So my question is: how do you extract the x264 video stream (in raw form) from the mkv file? Btw, the method Avalon used doesn't work in my case, it says because I used B-frames in the encoding process.

[check]

be aware you will get audio desync when you mux to avi.
use mkvextract. It's part of the mkvmerge package, and you can get seperate GUIs for use with it.

[beefcake]

I already tried mkvmerge GUI, but when I use AVC2AVI on the video that is extracted the avi doesn't work. Guess it's not a RAW x264 video stream. Or is there another program that puts x264 non-RAW (with B-frames) into an avi container?

And how come I would get desync with the audio? I first demux the streams, encode the NDAAC audio to a different format (LAME MP3 for instance) and then mux them in an avi container. Where in these steps would the cause of the desync be then?

[check]

the stream you get out of mkvextract is raw. More likely avc2avi is not working because of incomplete functionality. One caveat, if the h264 was muxed in as a vfw stream though the output from mkvextract will be an avi stream, at least, I think it will...

The desync will occur because of a technical limitation of the avi container. The video will be displayed a number of frames late (dependant on some b frame related options) because of the way avi stores video streams.

[foxyshadis]

Also timecodes. You can try haali's mkv2vfr utility.