Changes between Version 12 and Version 13 of Encode/AV1

Timestamp:

Dec 3, 2018, 3:02:10 PM (8 years ago)

Author:

Ewout

Comment:

Added chroma subsampling

Encode/AV1

@@ -87 +87 @@
 `-cpu-used` sets how efficient the compression will be. Default is 1. Lower values mean slower encoding with better quality, and vice-versa.
 
+= Chroma subsampling =
+If you want to use different chroma subsampling formats such as 4:2:2 or 4:4:4 you can use `-vf format=`.
+
+For example if you want to encode in 8-bit 4:4:4:
+{{{
+ffmpeg -i input.mp4 -c:v libaom-av1 -strict experimental -vf format=yuv444p output.mkv
+}}}
+Combined with a scaling option you can use it to downscale a 2160p 4:2:0 video to 1080p 4:4:4 for example:
+{{{
+ffmpeg -i input.mp4 -c:v libaom-av1 -strict experimental -vf "format=yuv444p,scale=iw/2:ih/2" output.mkv
+}}}
+Most 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`
+
+View all the different subsampling formats with `ffmpeg -pix_fmts`
+
 = More Info =