[x264-devel] About error concealment

[Foxy Shadis]

Throw away unreferenced b-frames, they're not worth correcting. 
Otherwise, you should take this discussion to the ffmpeg mailing list, 
this list isn't meant for decoding questions.

JB


武南龚 wrote:
> 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 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
>> _______________________________________________
>> x264-devel mailing list
>> x264-devel at videolan.org
>> http://mailman.videolan.org/listinfo/x264-devel
>>
>>
>>     
> _______________________________________________
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> x264-devel at videolan.org
> http://mailman.videolan.org/listinfo/x264-devel
>   



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