[Libav-user] Problems with ffvhuff and huvvyuv

Paul B Mahol onemda at gmail.com
Thu Oct 17 17:27:19 CEST 2013

On 10/17/13, James Board <jpboard2 at yahoo.com> wrote:
>>You noted it wrong. Huffyuv does use SIMD.
> Where?  I didn't see any SIMD instructions in huffyuvenc.c or
> huffyuvdec.c. Am I looking in the wrong place?

It is not in huffyuvdec.c

I will give more info once you stop top posting.

> On Wednesday, October 16, 2013 4:45 PM, Paul B Mahol <onemda at gmail.com>
> wrote:
> On 10/16/13, James Board <jpboard2 at yahoo.com> wrote:
>>>And issue is probably withing avi container as it
>>>may not add every frame into index table.
>>>And when seeking you never check if returned packet actually is right
>>>one that you need.
>>>Or it could be bug in your code how you seek in file, etc...
>> I do check the results of the seek and I do check the
>> best_effort_timestamp,
>> but yes, it could be a bug in my code.  Or it could be a problem
>> with AVI files.  I'll look into it and let you know what happens.
>> I also noticed that the huffyuv code is all pure C with no MMX or SSE
>> instructions.  Is the reason for that because huffyuv wouldn't benefit
>> from
>> MMX or SSE?  Or is it because nobody had time to optimize it yet?
> You noted it wrong. Huffyuv does use SIMD.
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