hevc option produces great small output, but video files have random artifacts
octopush-it opened this issue · 3 comments
Been using the --hevc option recently and it consistently produces smaller files with virtually no quality loss - but I have realized that something is happening to the output files that never happened with when I was using --nvenc: Converted files will regularly have weird "pixelation" moments randomly through the video... or some videos will start all green and then transition to the correct color pallet in a few seconds after playing. I guess it have nothing to do with my switch from --nvenc to --hevc and could be something else that happened around that time as well (maybe a driver update for the nvidia card or something)...
See this sample of an encode of a random moment at the 54 minute mark:
Any thoughts? Looking a the transcode logs I didn't notice anything egregious that would have equated to that.
1234.mkv.log
It looks like your version of ffmpeg is a nightly build from a couple years or so ago. Just to eliminate is as a factor, have you tried it with an official release version?
Lisa will have more insight, but that's where I would start.
@ttyS0 That's actually what I was thinking! :)
Also, what player are you using?
Y'all are awesome - I just updated ffmpeg and did 10 encodes and the problems went away. Amazing!