[Ffmpeg-devel] [PATCH] Basic H.264 encoder / Mo Comp Code

Tom Harper tharper
Tue Apr 25 19:16:52 CEST 2006


Not to jump into the middle of this, but this thead is of interest.

I was actually just in the midst of ripping the mocomp code out of the
mpegvideo.c file for a similar purpose- I was going to try to create a
basic mocomp only framework based on the mpeg code (and also better
understanding how ffmpeg is put together).

However, I don't think having this would necessarily help with h.264-  It seems
like that it would need to be rewritten.  For example, in the current 
frame work
mo comp stuff doesn't have the multiple temporal reference frame stuff
in it.  I need to get my hands on a spec so I am not talking out of 
turn on this,
but I thought that was important to include?   Or is it too computationally
prohibitive to really do this properly?  I am interested in any 
opinions on this,
as I am still getting up to speed.

Also, completely off topic, but .... is the epzs search with half pel 
sub search
considered to provide the best snr/bit rate trade off?  I saw that it 
was optional
in snow- did it cost too many bits to do 1/4 pel, or was it to reduce cpu?


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