[x264-devel] out-of-range motion vectors

[Gabriel Bouvigne]

CAdevel a écrit :

> The standard allows large motion vectors indeed (I recall a quarter 
> window as max). However, motion estimation techniques generally limit 
> their search range to 16 (or something close to that).

This is often the search range starting from the candidate position, not 
  necessarily from (0,0).

Example:
You select a ME search range of up to 10. For a macroblock that would be 
seeded by a candidate vector pointing to (-7,0), your ME could go from 
-17 to +3 within the X axis, and from -10 to +10 within the Y axis.


--
Gabriel
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