72 lines
3.1 KiB
Nix
72 lines
3.1 KiB
Nix
# usage:
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# - start a DM with a rando via
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# - '+' -> 'start conversation'
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# - add a user to your roster via
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# - '+' -> 'start conversation' -> '+' (opens the "add contact" dialog)
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# - this triggers a popup on the remote side asking them for confirmation
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# - after the remote's confirmation there will be a local popup for you to allow them to add you to their roster
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# - to make a call:
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# - ensure the other party is in your roster
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# - open a DM with the party
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# - click the phone icon at top (only visible if other party is in your roster)
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#
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# dino can be autostarted on login -- useful to ensure that i always receive calls and notifications --
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# but at present it has no "start in tray" type of option: it must render a window.
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#
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# outstanding bugs:
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# - mic is sometimes disabled at call start despite presenting as enabled
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# - fix is to toggle it off -> on in the Dino UI
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# - default mic gain is WAY TOO MUCH (heavily distorted)
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# - TODO: dino should have more optimal niceness/priority to ensure it can process its buffers
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# - possibly this is solved by enabling RealtimeKit (rtkit)
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# - TODO: see if Dino calls work better with `echo full > /sys/kernel/debug/sched/preempt`
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#
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# probably fixed:
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# - once per 1-2 minutes dino will temporarily drop mic input:
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# - `rtp-WRNING: plugin.vala:148: Warning in pipeline: Can't record audio fast enough
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# - this was *partially* fixed by bumping the pipewire mic buffer to 2048 samples (from ~512)
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# - this was further fixed by setting PULSE_LATENCY_MSEC=20.
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# - possibly Dino should be updated internally: `info.rate / 100` -> `info.rate / 50`.
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# - i think that affects the batching for echo cancellation, adaptive gain control, etc.
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#
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{ config, lib, ... }:
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let
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cfg = config.sane.programs.dino;
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in
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{
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sane.programs.dino = {
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configOption = with lib; mkOption {
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default = {};
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type = types.submodule {
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options.autostart = mkOption {
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type = types.bool;
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default = false;
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};
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};
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};
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persist.byStore.private = [ ".local/share/dino" ];
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services.dino = {
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description = "dino XMPP client";
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wantedBy = lib.mkIf cfg.config.autostart [ "default.target" ];
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serviceConfig = {
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ExecStart = "${cfg.package}/bin/dino";
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Type = "simple";
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Restart = "always";
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RestartSec = "20s";
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};
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# audio buffering; see: <https://gitlab.freedesktop.org/pipewire/pipewire/-/wikis/FAQ#pipewire-buffering-explained>
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# dino defaults to 10ms mic buffer, which causes underruns, which Dino handles *very* poorly
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# as in, the other end of the call will just not receive sound from us for a couple seconds.
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# pipewire uses power-of-two buffering for the mic itself. that would put us at 21.33 ms, but this env var supports only whole numbers (21ms ends up not power-of-two).
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# also, Dino's likely still doing things in 10ms batches internally anyway.
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environment.PULSE_LATENCY_MSEC = "20";
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# note that debug logging during calls produces so much journal spam that it pegs the CPU and causes dropped audio
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# environment.G_MESSAGES_DEBUG = "all";
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};
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};
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}
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