[Bug 262368] multimedia/ffmpeg: enable SVTAV1 on amd64 by default

From: <bugzilla-noreply_at_freebsd.org>
Date: Sat, 05 Mar 2022 21:38:43 UTC

            Bug ID: 262368
           Summary: multimedia/ffmpeg: enable SVTAV1 on amd64 by default
           Product: Ports & Packages
           Version: Latest
          Hardware: Any
                OS: Any
            Status: New
          Keywords: patch
          Severity: Affects Only Me
          Priority: ---
         Component: Individual Port(s)
          Assignee: multimedia@FreeBSD.org
          Reporter: jbeich@FreeBSD.org
             Flags: maintainer-feedback?(multimedia@FreeBSD.org)
          Assignee: multimedia@FreeBSD.org

Created attachment 232273
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=232273&action=edit

SVT-AV1 is a mature implementation of a fast AV1 encoder. It makes heavy use of
threads and SIMD assembly thus better suited for live streaming (realtime

$ ffmpeg -hide_banner -h encoder=libsvtav1
Encoder libsvtav1 [SVT-AV1(Scalable Video Technology for AV1) encoder]:
    General capabilities: delay threads
    Threading capabilities: other
    Supported pixel formats: yuv420p yuv420p10le
libsvtav1 AVOptions:
  -hielevel          <int>        E..V....... Hierarchical prediction levels
setting (from 3 to 4) (default 4level)
     3level          3            E..V.......
     4level          4            E..V.......
  -la_depth          <int>        E..V....... Look ahead distance [0, 120]
(from -1 to 120) (default -1)
  -preset            <int>        E..V....... Encoding preset (from -1 to 13)
(default -1)
  -tier              <int>        E..V....... Set operating point tier (from 0
to 1) (default main)
     main            0            E..V.......
     high            1            E..V.......
  -crf               <int>        E..V....... Constant Rate Factor value (from
0 to 63) (default 0)
  -qp                <int>        E..V....... Initial Quantizer level value
(from 0 to 63) (default 0)
  -sc_detection      <boolean>    E..V....... Scene change detection (default
  -tile_columns      <int>        E..V....... Log2 of number of tile columns to
use (from 0 to 4) (default 0)
  -tile_rows         <int>        E..V....... Log2 of number of tile rows to
use (from 0 to 6) (default 0)
  -svtav1-params     <dictionary> E..V....... Set the SVT-AV1 configuration
using a :-separated list of key=value parameters

$ fetch https://media.xiph.org/video/derf/y4m/pedestrian_area_1080p25.y4m

$ ffmpeg -hide_banner -benchmark -i pedestrian_area_1080p25.y4m -c:v libsvtav1
-crf 20 -y test.libsvtav1.mp4
bench: utime=20.564s stime=0.948s rtime=3.545s
bench: maxrss=1032284kB

$ ffmpeg -hide_banner -benchmark -i pedestrian_area_1080p25.y4m -c:v libaom-av1
-cpu-used 8 -usage realtime -crf 20 -y test.libaom-av1.mp4
bench: utime=49.713s stime=0.230s rtime=16.220s
bench: maxrss=206744kB

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