colin/nix-files
1
0
Fork 1
Code Issues Pull Requests Projects Releases Wiki Activity

moby: decrease the amount of samples Dino drops while in a call

Browse Source
This commit is contained in:
Colin 2023-10-07 00:58:11 +00:00
parent 243a4c6f0d
commit 98a6671e95
2 changed files with 37 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
hosts/by-name/moby/default.nix
View File

@ -63,6 +63,33 @@
sane.programs.epiphany.env.BROWSER = "epiphany";
sane.programs.firefox.enableFor.user.colin = false; # use epiphany instead
# note the .conf.d approach: using ~/.config/pipewire/pipewire.conf directly breaks all audio,
# presumably because that deletes the defaults entirely whereas the .conf.d approach selectively overrides defaults
sane.user.fs.".config/pipewire/pipewire.conf.d/10-fix-dino-mic-cutout.conf".symlink.text = ''
# config docs: <https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/Config-PipeWire#properties>
# useful to run `pw-top` to see that these settings are actually having effect,
# and `pw-metadata` to see if any settings conflict (e.g. max-quantum < min-quantum)
#
# restart pipewire after editing these files:
# - `systemctl --user restart pipewire`
# - pipewire users will likely stop outputting audio until they are also restarted
#
# there's seemingly two buffers for the mic:
# 1. Pipewire buffering out of the driver and into its own member.
# 2. Pipewire buffering into Dino.
# the latter is fixed at 10ms by Dino, difficult to override via runtime config.
# the former defaults low (e.g. 512 samples)
# this default configuration causes the mic to regularly drop out entirely for a couple seconds at a time during a call,
# presumably because the system can't keep up (pw-top shows incrementing counter in ERR column).
# `pw-metadata -n settings 0 clock.force-quantum 1024` reduces to about 1 error per second.
# `pw-metadata -n settings 0 clock.force-quantum 2048` reduces to 1 error every < 10s.
# pipewire default config includes `clock.power-of-two-quantum = true`
context.properties = {
default.clock.min-quantum = 2048
default.clock.max-quantum = 8192
}
'';
# sane.programs.mpv.enableFor.user.colin = true;
boot.loader.efi.canTouchEfiVariables = false;

11
hosts/common/programs/dino.nix
View File

@ -12,6 +12,14 @@
#
# dino can be autostarted on login -- useful to ensure that i always receive calls and notifications --
# but at present it has no "start in tray" type of option: it must render a window.
#
# outstanding bugs:
# - mic is sometimes disabled at call start despite presenting as enabled
# - fix is to toggle it off -> on in the Dino UI
# - once per 1-2 minutes dino will temporarily drop mic input:
# - `rtp-WRNING: plugin.vala:148: Warning in pipeline: Can't record audio fast enough
# - this was *partially* fixed by bumping the pipewire mic buffer to 2048 samples (from ~512)
# - that fix can't extend to Dino itself except by patching its code (perhaps)
{ config, lib, ... }:
let
cfg = config.sane.programs.dino;
@ -39,7 +47,8 @@ in
Restart = "always";
RestartSec = "20s";
};
environment.G_MESSAGES_DEBUG = "all";
# note that debug logging during calls produces so much journal spam that it pegs the CPU and causes dropped audio
# environment.G_MESSAGES_DEBUG = "all";
};
};
}