[x264-devel] About error concealment

[武南龚]

yes, there is frame-freeze technology
 I mean
if B frame is lost
I substitute it with the previous P frame, that is I P P b
then how is the b frame estimated?


On Fri, Aug 21, 2009 at 2:34 PM, Loren Merritt<lorenm at u.washington.edu> wrote:
> On Fri, 21 Aug 2009, 武å~M~W�¾~Z wrote:
>
>>  I have a question about error concealment. I used x264 to encode a
>> video. And in the encoded video, assume there are some consecutive
>> frames: I P B b .....
>>  If the P or B frame is lost, how to reconstruct(or estimate) the next
>> frames?
>
> If frames are lost, you're screwed. There is no way to reconstruct anything
> worthwhile. If you want an algorithm that may or may not look slightly
> better than discarding everything until the next keyframe, you could assume
> that the lost frames are identical the preceding valid frame.
>
> --Loren Merritt
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