[x264-devel] Rare macroblock errors in recent x264...

Jason Garrett-Glaser jason at x264.com
Wed Jul 18 18:02:50 CEST 2012


On Wed, Jul 18, 2012 at 8:52 AM, Jason Garrett-Glaser <jason at x264.com> wrote:
> On Wed, Jul 18, 2012 at 7:05 AM, Jeppe Øland <joland at gmail.com> wrote:
>> On Wed, Jul 18, 2012 at 2:41 AM, Jason Garrett-Glaser <jason at x264.com> wrote:
>>>>>> As Jason wrote you last month we need sample. Preferably short source
>>>>>> sample with which we can reproduce your problem. If you can't provide
>>>>>> source sample than at least provide short encoded sample with error so
>>>>>> we can at least see it and analyse encoded stream (what caused error:
>>>>>> high QP, wrong prediction, etc.)
>>>>>
>>>>> As for getting some source content that exhibits the problem, so far
>>>>> it's been hard to nail down something small.
>>>>> But yesterday I may have found something ...
>>>>
>>>> No idea if its the same problem as I'm seeing in the other files, but
>>>> I managed to get it to crap out with a small sourcefile!
>>>
>>> I can't replicate the problem with the same version; it seems to
>>> encode fine here.
>>
>> I have tried it on 3 different PCs now (Core2 and i7) and they all do it.
>> Even with '--asm 0" it happens.
>>
>> Can you try with this one:
>>     http://mirror01.x264.nl/x264/32bit/8bit_depth/revision2145/x264.exe
>
> Replicated, let me see if I can figure this one out.
>
> Jason

This bug was already fixed in revision bcd41db.  Please use the latest
versions of x264 to encode and you won't have problem with bugs that
were previously fixed.

Jason


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