ffmpeg export command

Anything and everything to do with DCP-o-matic.
wyup
Posts: 2
Joined: Fri May 03, 2024 3:29 pm

ffmpeg export command

Post by wyup »

Hello. Thank you very much for DCP-o-matic.
Does it use ffmpeg for the export function? If so, which command options does it use? I've compared DCP-o-Matic export function from a DCP to MP4 and from a standard direct ffmpeg command without filters using a .mxf as source but the visual result is different. DCP-o-Matic produces better blacks and contrast. As DCP-o-Matic uses ffmpeg internally I suppose it uses ffmpeg for exporting. I've tried with a custom zscale and scale filters but didn't get usable output.
Wolfgang Woehl
Posts: 12
Joined: Thu Aug 06, 2026 6:07 am

Re: ffmpeg export command

Post by Wolfgang Woehl »

These may help: -vf "scale=flags=bicubic:out_color_matrix=bt709:out_range=tv,format=yuv420p,setsar=1"
StephW999
Posts: 90
Joined: Mon May 17, 2021 1:15 pm

Re: ffmpeg export command

Post by StephW999 »

my help : ffmpeg -i mjpeg2000.mxf -c:v libx264 -preset slow -crf 20 -profile:v main -vf "colorspace=all=bt709:iall=bt709,format=yuv420p,scale=1920:1038,pad=1920:1080:0:21:black" -aspect 16:9 outputfile.mp4"