[FFmpeg-user] slow performance with lut3d filter

Elliott Balsley elliottbalsley at gmail.com
Wed Feb 19 00:36:40 CET 2014

I do see a decent improvement with the latest version.  However, I find some glitches in the output video when using certain LUTs.  Attached is an example of a cube LUT that works, and a .dat LUT that produces colorful glitches in certain areas of the frame.

I am using a sample clip from ftp://ALEXA@ftp-footage.arri.de/01_DNxHD_16-9_1920x1080/23.976fps/J001C001_140110_R6MS.mxf

FTP password is samplefootage.

Cube LUT: https://dl.dropboxusercontent.com/u/33335399/AlexaV3_EI0800_LogC2Video_Rec709_EL_davinci3d.cube
Dat LUT: https://dl.dropboxusercontent.com/u/33335399/Arri_LogCto709.dat

On Feb 15, 2014, at 11:49 PM, Clément Bœsch <u at pkh.me> wrote:

> On Sat, Feb 15, 2014 at 05:37:28PM -0800, Elliott Balsley wrote:
>> Wow that's a big improvement!  Thanks for working on it.  How do I use your changes, can I just pull from the git master?
> Yes
> -- 
> Clément B.
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