[Bug 262367] multimedia/svt-av1: hangs in usem state with long (>540 seconds) videos

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From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 05 Mar 2022 21:03:07 UTC

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=262367

            Bug ID: 262367
           Summary: multimedia/svt-av1: hangs in usem state with long
                    (>540 seconds) videos
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: jbeich@FreeBSD.org
          Reporter: evgeniy@khramtsov.org
          Assignee: jbeich@FreeBSD.org
             Flags: maintainer-feedback?(jbeich@FreeBSD.org)

ffmpeg -i in.mp4 -c:v libsvtav1 -preset 4 -qp 61 -c:a libopus -b:a 16k out.mkv

The above will result in usem process state hang with sufficiently long videos.
Backporting af222120c fixes this.

See
https://gitlab.com/AOMediaCodec/SVT-AV1/-/commit/af222120c8cf605722f5143a224ee883f6e674fd
and https://www.reddit.com/r/AV1/comments/t74avy/comment/hzfgfw8/?context=3

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