ffmpeg -i input.mov -c:v libvpx-vp9 -crf 18 -b:v 0 -f webm - | md5sum # Run again. Compare hashes. Force Libvpx to use a simpler reference structure. This is the nuclear option that usually fixes the ghost, but hurts compression efficiency.
Drop your Libvpx war stories in the comments below.
The ghosting bug in Libvpx v1.11.0–v1.12.0 is largely fixed in v1.13.0+. The patch (Change-Id: I8a3f7b2e9c4d1a5f6e7b8c9d0e1f2a3b4c5d6e7f) corrects the reference frame buffer reset logic after scene detection.
ffmpeg -i input.mov -c:v libvpx-vp9 -crf 18 -b:v 0 -f webm - | md5sum # Run again. Compare hashes. Force Libvpx to use a simpler reference structure. This is the nuclear option that usually fixes the ghost, but hurts compression efficiency.
Drop your Libvpx war stories in the comments below.
The ghosting bug in Libvpx v1.11.0–v1.12.0 is largely fixed in v1.13.0+. The patch (Change-Id: I8a3f7b2e9c4d1a5f6e7b8c9d0e1f2a3b4c5d6e7f) corrects the reference frame buffer reset logic after scene detection.
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