[x264-devel] NAL slice support patch added?

Loren Merritt lorenm at u.washington.edu
Wed Oct 24 18:49:08 CEST 2007


On Wed, 24 Oct 2007, Kurosu wrote:
> Mojtaba Hosseini a écrit :
>
>> 4) I have tested this patch with multiple threads and it worked.
>> Is there a set of tests I should do to increase confidence in the
>> patch?
>
> A generic strangeness I've found with a quite similar patch is that the
> number of threads has an influence on the content of the slice (in terms
> of contained MBs). But the same happens with or without slices. The
> rate-distortion curve is almost identical for long sequences, so I guess
> this difference in behavior is benign (and could have been expected).

Intentional, due to mvrange-thread and due to ratecontrol getting delayed 
feedback.
I suppose I could add an option to simulation the limitations of N threads 
when using fewer, just to be sure that nothing else gets changed. But that 
would add quite a bit of complexity.

--Loren Merritt


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