xvid in mencoder

[Doom9]

Is anybody using xvid in mencoder? the xvidencopts have an interesting parameter: container_frame_overhead. Is there a way to set this to zero? the manpage says container_frame_overhead=0 means that XviD's defaults are being used (no idea what those are), and considering that in GKnot's bitrate calculator the AVI overhead is not taking into account by default, I figure XviD is already AVI aware. So is there any way to make it AVI unaware (I need RAW output for later muxing into an MP4)?

[Koepi]

That'd need a special build as 0 (=default) means 24bytes/frame (->AVI).

Cheers
Koepi

[Doom9]

but what's the effect of that assumption? will the bitrate of the raw xvid data be reduced by 24 bytes/frame? So if I my bitrate is 600 kbit/s, that's 75'000 byte/s video and container data, and if the framerate is 25fps, the there's 3000 bytes/frame for both video and container, or 24 bytes/frame for the container and the actual video bitrate is 2976 bytes/frame?

[Koepi]

Yupp, it reduces bitrate by that amount more or less.

Regards
Koepi