[x264-devel] x264 compatibility issues with Polycom and Tandberg

Jason Garrett-Glaser darkshikari at gmail.com
Fri Sep 24 14:03:57 CEST 2010


On Fri, Sep 24, 2010 at 4:44 AM, Alexander Sbitnev
<alexander.sbitnev at gmail.com> wrote:
>> > VBV active and preventing frames from getting bigger than 65K because
>> > such frames dropped by Polycom codec either (this time with correct
>> stats).
>> > Is there anything for me to tweak to find a solution?
>>
>> Is it possible that the decoder doesn't support too many slices?  x264
> allows
>> you to exceed the H.264 spec's SliceRate limitation when using slice-max-
>> size, largely because the limitation is stupid and being able to ignore it
> is
>> ridiculously useful.
>
> I think it's possible. Is there a way to reduce slices count with
> slice-max-size
> still in place?

Obviously if your frame size cap divided by slice max size exceeds the
max number of slices, there will be a problem.

Dark Shikari


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