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Old 7th April 2022, 06:44   #1  |  Link
The man
Join Date: Oct 2001
Location: Sweden
Posts: 25
Corrupted x264 video after Youtube upload

I have a video that gets corrupted on some frames when uploading it on Youtube. Itís a time lapse of jpeg images loaded in Avisynth.

Frame from my x264 encode:

Same frame from the Youtube video:

There are multiple frames like this, usually a few in row. The example is one of the worst frames.

I basically just followed this guide when encoding:

This is my command line (using ffmpeg):
ffmpeg.exe -i "input.avs" -c:v libx264 -profile:v high -bf 2 -g 25 -preset veryslow -crf 18 -pix_fmt yuv420p -movflags faststart "output.mp4"

I have tried re-encoding and uploading the video multiple times. Higher CRF-values (lower quality video) seems to make less corruption.

Has anyone experienced anything like this before? Is there anything I can change in my encode settings?
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