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Old 19th May 2019, 18:56   #2  |  Link
sneaker_ger
Registered User
 
Join Date: Dec 2002
Posts: 5,565
If you dumb everything down to
Code:
from vapoursynth import core
video = core.ffms2.Source(source='foo.mkv')
video.set_output()
Code:
vspipe --y4m "foo.vpy" - | ffmpeg -i pipe: -c:v libx264 -preset ultrafast -y "outfoovideo.mkv"
ffmpeg -i "outfoovideo.mkv" -i "foo.mkv" -map 0:v -map 1:a -c copy "outfoo.mkv"
do you still have sync issues?
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