[MPlayer-users] -dumpvideo: does it create raw video stream?

[Enzo]

Dear friends,

I have a large x264 encoded avifile created by MEncoder
dev-SVN-r21398-3.4.4 that I'd like to convert to Matroska. To do this,
the suggested procedure is:

1) convert the avi to raw with avi2raw
2) use mp4box or a similar tool to wrap the raw stream into mp4
3) feed the resulting mp4 into a Matroska merger

Problem is that avi2raw failed, producing an incomplete video stream. So
I decided to use mplayer with -dumpvideo, which indeed produced a
complete video stream. Unfortunately both mp4box and mp3creator failed
to recognize the video stream dumped by mplayer. Is there any
explanation for this? Is the -dumpvideo'ed stream not fully compliant to
the raw avi specifications? Any assistanc will be greatly appreciated --
thank you very much.

Kind regards,

Enzo