[Bug 238096] www/firefox: some videos don't have sound - include sndio in default audio options

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=238096

--- Comment #1 from Jan Beich <jbeich at FreeBSD.org> ---
There's no "best" backend, see bug 216383.

> Is it possible to add SNDIO to the default OPTIONS_MULTI_AUDIO?

sndio backend in cubeb doesn't support lazy bindings, so enabling it would
always pull libsndio.so even if unused. As sndio comes after alsa in backend
autoselection it will be unused by default. FreeBSD support is also not
upstreamed.

https://searchfox.org/mozilla-central/rev/662de518b168/media/libcubeb/src/cubeb_pulse.c#626-629
https://searchfox.org/mozilla-central/rev/662de518b168/media/libcubeb/src/cubeb.c#174-176,195-197

> Alternatively, I can provide more debugging info if needed, I'm just not sure where to look for that.

Dump Media section from about:support to confirm used backend. www/firefox
won't use PulseAudio if audio/pulseaudio isn't installed.

If the backend is alsa then the issue maybe in either audio/alsa-plugins port
options, /usr/local/etc/asound.conf or ~/.asoundrc. Check if you've modified
any of these.

If the backend is pulse-rust or pulse then it could be stale configuration.
Check if paplay works. If not try removing ~/.config/pulse. Otherwise, show
audio/pulseaudio port options and "pacmd dump" output. See bug 211684 for
rationale how default sink is selected.

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