[x264-devel] Re: Using I-frame instead of IDR

[Axel Gunter]

Loren Merritt wrote:
> On Wed, 15 Nov 2006, Axel Gunter wrote:
>
>> I noticed all the I-frames introduced by the x264 code were IDR 
>> Access Units. Is there a way I can have non-IDR I-frames in x264 
>> encoding?
>
> No. Why do you want non-IDR I-frames? The only reason I can think of 
> is open-GOP B-frames, which x264 also doesn't do.
>
> --Loren Merritt
>
I guess the compression would be better if the frames following the IDR 
or I-picture could use frames temporally before the IDR/I-picture since 
they have more reference frames to chose from. Since IDR forces a 
decoder reference buffer flush, this isn't possible. Correct me if I am 
wrong.
--Axel

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