[x264-devel] The size of search area in reference frames

[Radek Czyz]

On 14/06/2010 2:45 PM, john sisi wrote:
> Hi All,
>
> As you may know better, due to the movement of objects, the search
> area for motion estimation in reference frames must be increased in
> order to achieve better PSNR performance. But it seems that x264
> doesn't increase the size of the search area in the reference frames
> and it always uses the same size. But am I right? If not, please
> correct me by showing where this issue is handled. Thanks,
>
> John

Hi,

Since you're asking for details of x264, can you describe your question 
more in terms of x264's workings?

Particularly, what is this "search area" (do you mean during fullsearch 
only?) and from what it should be increased (that is, why was "it" 
decreased in the first place).

x264 has maximum vector size as part of its configuration but, as its 
name suggests, it's already a maximum allowed, and it's up to the user 
to increase it if he wants to allow more.

Regards

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