Changes between Version 12 and Version 13 of Encode/AV1


Ignore:
Timestamp:
Dec 3, 2018, 5:02:10 PM (3 months ago)
Author:
Ewout
Comment:

Added chroma subsampling

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  • Encode/AV1

    v12 v13  
    8787`-cpu-used` sets how efficient the compression will be. Default is 1. Lower values mean slower encoding with better quality, and vice-versa.
    8888
     89= Chroma subsampling =
     90If you want to use different chroma subsampling formats such as 4:2:2 or 4:4:4 you can use `-vf format=`.
     91
     92For example if you want to encode in 8-bit 4:4:4:
     93{{{
     94ffmpeg -i input.mp4 -c:v libaom-av1 -strict experimental -vf format=yuv444p output.mkv
     95}}}
     96Combined with a scaling option you can use it to downscale a 2160p 4:2:0 video to 1080p 4:4:4 for example:
     97{{{
     98ffmpeg -i input.mp4 -c:v libaom-av1 -strict experimental -vf "format=yuv444p,scale=iw/2:ih/2" output.mkv
     99}}}
     100Most used formats: 8-bit 4:0:0 `gray`, 8-bit 4:2:0 `yuv420p`, 8-bit 4:2:2 `yuv422p`, 8-bit 4:4:4 `yuv444p`, 10-bit 4:0:0 `gray10le`, 10-bit 4:2:0 `yuv420p10le`, 10-bit 4:2:2 `yuv422p10le`, 10-bit 4:4:4 `yuv444p10le`
     101
     102View all the different subsampling formats with `ffmpeg -pix_fmts`
     103
    89104= More Info =
    90105