[Libav-user] Problems with ffvhuff and huvvyuv

James Board jpboard2 at yahoo.com
Thu Oct 17 17:00:25 CEST 2013

>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?

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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