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   Roy Tam (roytam1@miniwa.moe)'s status on Monday, 02-Mar-2026 01:32:20 JST Roy Tam

   in reply to

   • niconiconi
   @niconiconi it may not work with source files encoded in `-pix_fmt rgb24`
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     niconiconi (niconiconi@mk.absturztau.be)'s status on Monday, 02-Mar-2026 01:32:22 JST niconiconi

     #TIL Convert a video to black-and-white in ffmpeg by simulating the "connecting only the Y cable to the TV" trick. Unlike other filters, it doesn't waste CPU time on unneeded processing:
     
     ffmpeg -i input.mp4 -vf extractplanes=y output.mp4