[FFmpeg-user] Question about -noauto_conversion_filters

Gyan Doshi ffmpeg at gyani.pro
Mon Sep 14 12:26:30 EEST 2020



On 14-09-2020 02:47 pm, Michael Koch wrote:
> ffmpeg -v verbose -f lavfi -i testsrc2=s=svga:d=5,format=yuv422p10le 
> -vf format=rgb48le,lut3d="VLog_to_V709.cube",format=yuv422p10le 
> -noauto_conversion_filters -pix_fmt yuv422p10le -c:v h264 -y out.mov 

Format conversion is carried out by libswscale and auto conversion 
inserts the scale filter.

So,

     ffmpeg -v verbose -f lavfi -i 
testsrc2=s=svga:d=5,format=yuv422p10le -vf 
scale,format=rgb48le,lut3d="VLog_to_V709.cube",scale 
-noauto_conversion_filters -pix_fmt yuv422p10le -c:v h264 -y out.mov

The final format filter is redundant with -pix_fmt, so I removed one of 
them.

Gyan


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