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Old 10th November 2019, 09:29   #1981  |  Link
marcomsousa
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HandBrake 1.3.0 Released

* Added support for reading AV1 via libdav1d

https://github.com/HandBrake/HandBrake/releases
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Old 10th November 2019, 16:25   #1982  |  Link
dapperdan
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Quote:
Originally Posted by mzso View Post
A 4+ billion Ed Sheeran song had it up to to 2160p, but a 2+ billion Taylor swift song only has it up to 720p. I managed to find some Wired videos with a couple million views, that have AV1 though.
A YouTube engineer made a comment about people using YouTube as a radio station, but their licence requiring video, so ultra low bitrate AV1 being a kind of workaround for contractual obligations.

So it's possible that YouTube is measuring the bitrate/resolution of these views and prioritising the ones that are viewed at high quality, not just the ones that are viewed a lot. Just a guess though.
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Old 11th November 2019, 07:58   #1983  |  Link
Beelzebubu
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Quote:
Originally Posted by soresu View Post
An interesting point Ronald made implies that AV1 has an intrinsic parallel scaling limitation due to an oversight during the encoder development (12:20 in the video), something to do with superblock boundaries.
The superblock boundary one to get superblock-row multithreading (an encoder-side-only version of partitions in vp8 or wavefront in hevc) is quite micro, because it is easily worked around by just ignoring the superblock edge's correctness and sacrifice your search' accuracy a tiny little bit. The frame multi-threading one is a bigger deal.
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Old 11th November 2019, 22:50   #1984  |  Link
benwaggoner
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Quote:
Originally Posted by dapperdan View Post
A YouTube engineer made a comment about people using YouTube as a radio station, but their licence requiring video, so ultra low bitrate AV1 being a kind of workaround for contractual obligations.

So it's possible that YouTube is measuring the bitrate/resolution of these views and prioritising the ones that are viewed at high quality, not just the ones that are viewed a lot. Just a guess though.
A lot of the "TV for radio" clips have super static backgrounds or just scrolling lyrics. So they should encode down super small with more advanced codecs and long GOPs.
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