[Bug 261898] www/firefox: audio glitches with media.cubeb.backend="oss"

From: <bugzilla-noreply_at_freebsd.org>
Date: Mon, 05 Jun 2023 09:11:39 UTC

Tatsuki Makino <tatsuki_makino@hotmail.com> changed:

           What    |Removed                     |Added
                 CC|                            |tatsuki_makino@hotmail.com

--- Comment #8 from Tatsuki Makino <tatsuki_makino@hotmail.com> ---
Now, I think 114, or 113 after bug 270436 has been fixed, media.cubeb.backend
settings are working as intended.
But 114 has a broken about:support, so we can't see where audio is being output
to in browser.

So it seems that the only way to check is to use the following method.

fstat -f /dev/ | grep dsp

If firefox uses oss directly, then the firefox line will appear.
If any sound server lines appear, they are routed through it.

sockstat -u -c | grep firefox

Sound servers of some kind are often routed through unix domain sockets.
If pulseaudio is used, pulse-*/ line will appear.
If sndio is used, sndio/sock line will appear.
If jack is used, /jack_ line will appear.

As for ALSA, I don't know how to see any sort of status.
Is it possible to determine by writing the following line to ~/.asoundrc that
the sound will not be emitted, etc.?

pcm.!default pcm.null

... First, why not make sure that we are really outputting directly to oss by

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