[MEncoder-users] AVI overhead

[Jean Hoderd]

Hi,

My encodings with XviD are constantly running above the target
size, and I suspect it might be the avi overhead.  I am using
these formulas to compute the video bitrate:
(rates are in kbps, duration in seconds, sizes in bytes)

audiosize = 1000 * audiorate * duration / 8
videosize = totalsize - audiosize
videorate = 8 * videosize / duration / 1000

Now, this set of formulas does not into account the avi overhead.
(The videosize should be totalsize minus audiosize *minus* overhead).
My question is: how does one compute it?  (At least an estimation)

Thanks for your help!
Jean



	
		
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