GNU bug report logs - #39714
Real-time AV1 playback in VLC

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From: help-debbugs <at> gnu.org (GNU bug Tracking System)
To: Leo Famulari <leo <at> famulari.name>
Subject: bug#39714: closed (Re: Real-time AV1 playback in VLC)
Date: Fri, 21 Feb 2020 17:36:02 +0000

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Your bug report

#39714: Real-time AV1 playback in VLC

which was filed against the guix-patches package, has been closed.

The explanation is attached below, along with your original report.
If you require more details, please reply to 39714 <at> debbugs.gnu.org.

-- 
39714: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=39714
GNU Bug Tracking System
Contact help-debbugs <at> gnu.org with problems

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From: Leo Famulari <leo <at> famulari.name>
To: 39714-done <at> debbugs.gnu.org
Subject: Re: Real-time AV1 playback in VLC
Date: Fri, 21 Feb 2020 12:35:51 -0500

Closed in favor of <https://bugs.gnu.org/39719>.

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From: Leo Famulari <leo <at> famulari.name>
To: guix-patches <at> gnu.org
Subject: Real-time AV1 playback in VLC
Date: Fri, 21 Feb 2020 11:25:58 -0500

On my Thinkpad x230, VLC cannot play back AV1 videos in real-time. They
stutter and drop frames.

This is because our VLC's AV1 playback is being provided by FFmpeg,
which by default chooses libaom, which is too slow.

By building VLC with the dav1d AV1 decoder, VLC chooses to use dav1d for
playback, and everything is fine.

Here are some AV1 samples; I like the 1080 "Summer Nature" clip:

https://www.elecard.com/videos

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