i should start re-encoding some of mine as well. which software and settings did you use?
For the frame interpolation (60FPS) I use Flowframes and sometimes Topaz Video AI.
For the audio normalization I use
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with the following settings:
ls *.mp4 | ForEach-Object { ffmpeg-normalize $_.FullName -prf "dynaudnorm=p=0.1:s=8" -nt rms -c:a aac -b:a 128k -ar 48000 -pr -ext mp4 }
This works most of the time, but every now and then I have to adjust the audio levels manually with
ffmpeg -vcodec copy -filter:a "volume=1.0" ZZZ.mp4 -i where I have to play around with the factor (here 1.0)
For everything else I use ffmpeg and you can use pretty much any software for that, but I can
really recommend
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!
So here are some inputs:
-c:v copy -an for deleting an audio stream from a video (if it is empty. Empty audio streams SHOULD NOT EXIST!)
-vf scale="1920:-1" -crf 13 for resizing a video to 1920 horizontal pixels and saving it as x264 with low compression. This is useful for later frame interpolation because the more pixels the video has, the longer it takes to render.
-c:a copy -c:v libsvtav1 -crf 28 -preset 5 for compressing a video with AV1 at a medium quality and a high quality preset. If your PC is slower or the videos are longer I recommend a preset of 7. For videos with more details the crf value should be more like 25 or 22, which will result in a larger file size.