@Terje If you want to give it a try, I put an appimage containing libaom 3.8.0 and svt-av1 (and the av1-svt.webm preset) in my Dropbox. If you don't like Dropbox, ask me to put it in some file transfer you know, I have no problem. https://www.dropbox.com/scl/fi/8gbhy9t8t1x0kect0qgdz/cin-aom-38_svt.AppImage?rlkey=dgqjcl1nr829re9rirqqw5gx9&dl=0 PS: As Phyllis said, you can try to compile it yourself, following the instructions in the manual. I assure you it's not complicated, as I've done it myself (just ask Andrew how hard I make him mad! :) )
ffplay -hide_banner hdv07_05_m2t_cingg_aom38-av1.webm
[libdav1d @ 0x7f0dc0005a80] libdav1d 1.0.0 0KB sq= 0B f=0/0
Input #0, matroska,webm, from 'hdv07_05_m2t_cingg_aom38-av1.webm':
Metadata:
ENCODER : Lavf60.16.100
Duration: 00:06:58.08, start: 0.000000, bitrate: 4821 kb/s
Stream #0:0: Video: av1 (Main), yuv420p(pc, smpte170m/unknown/unknown), 1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 1k tbn, 1k tbc
Metadata:
DURATION : 00:06:58.043000000
Stream #0:1(eng): Audio: vorbis, 48000 Hz, stereo, fltp
Metadata:
DURATION : 00:06:58.082000000
[libdav1d @ 0x7f0dc0017340] libdav1d 1.0.0
3.38 A-V: 0.009 fd= 0 aq= 14KB vq= 160KB sq= 0B f=0/0