[MacPorts] #60933: request: libaom-av1

[MacPorts]

#60933: request: libaom-av1
--------------------------------+--------------------
 Reporter:  iEFdev              |      Owner:  (none)
     Type:  request             |     Status:  new
 Priority:  Normal              |  Milestone:
Component:  ports               |    Version:  2.6.3
 Keywords:  ffmpeg, youtube-dl  |       Port:
--------------------------------+--------------------
 I'd like to request `libaom-av1` (or what suitable name it should have).

 With a `libaom-av1` port, one could later add `--enable-libaom` to the
 `ffmpeg` build.

 - [https://trac.ffmpeg.org/wiki/Encode/AV1 FFmpeg/AV1]

 Page referenced in the FFmpeg wiki is:
  - [https://nwgat.ninja/test-driving-aomedias-av1-codec/]

 Source code:
  - [https://github.com/nwgat/Mirror-aom gh:nwgat/Mirror-aom]


 [[br]]


 So, this tracks back to an issue I had when downloading a clip from
 YouTube with `youtube-dl`.

 When using something like:

 {{{
 -f 'bestvideo[ext=mp4][height<=720]+bestaudio[ext=m4a]'
 }}}

 It will pick a better video, but a some of the better videos are using
 (vcodec) `av01` instead of `avc1`, and the merged video won't play in
 Finder/QuickLook, &/or with `ffplay`. VLC did play the video though.

 {{{
 # excerpts from youtube-dl -F <url>
 // ... //
 136     mp4    1280x720   720p  461k , avc1. ...
 398     mp4    1280x720   720p  963k , av01. ...
 399     mp4    1920x1080  1080p 1741k , av01. ...
 137     mp4    1920x1080  1080p 2367k , avc1. ...
 22      mp4    1280x720   720p  245k , avc1. ...
 18      mp4    640x360    360p  274k , avc1. ... (best)
 }}}


 {{{
 #!bash
 $ ffprobe "Some_clip.mp4"
 Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'Some_clip.mp4':
   Metadata:
     major_brand     : isom
     minor_version   : 512
     compatible_brands: isomiso2mp41
     encoder         : Lavf58.29.100
   Duration: 00:21:39.02, start: 0.000000, bitrate: 432 kb/s
     Stream #0:0(und): Video: av1 (av01 / 0x31307661), none, 1280x720, 299
 kb/s, 23.98 fps, 23.98 tbr, 24k tbn, 24k tbc (default)
     Metadata:
       handler_name    : ISO Media file produced by Google Inc.
     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 44100 Hz,
 stereo, fltp, 128 kb/s (default)
     Metadata:
       handler_name    : ISO Media file produced by Google Inc.
 Unsupported codec with id 32797 for input stream 0
 }}}


 One can pick the `avc1` version with
 `bestvideo[ext=mp4][height<=720][vcodec^=avc1]` ''(`[vcodec!=av01]` did
 not work)'', but then… you don't get the better versions.

 Installing/using `dav1d` worked for this particular video clip, but it
 would be great to also have `libaom-av1` as an additional option as well –
 incase it's needed for other ones.

 Since a lot of people use and rely on `youtube-dl`, and that one have some
 `ffmpeg` integration - it would be great to have some more/additional
 support available.


 [[br]]
 -----
 - cc: dbevans, jeremyhu (`ffmpeg`)
 - cc: ryandesign (`youtube-dl`)

 ''…in case any of you are interested.''

-- 
Ticket URL: <https://trac.macports.org/ticket/60933>
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