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

[Måns Rullgård]

Axel Gunter <axl264 at gmail.com> writes:

> 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.
>>
> 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.

You are right.

-- 
Måns Rullgård
mru at inprovide.com

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