molluskandClaude Opus 4.8
913b0b6b20
Consumes the new pixelpass --strict-audio mode + app_audio events (pixelpass
85fdebe) to close Codex's A23 P2: the per-app pick alone was best-effort —
pixelpass would fall back to whole-desktop audio before the app routed and again
if it stopped, both reintroducing the call echo.
- host_args appends --strict-audio alongside --app=<name>, so pixelpass never
mirrors the desktop for our share: viewers hear only the chosen app or silence.
- Parse the app_audio JSON event (routed/lost) into PixelpassEvent; spawn_host
takes an optional notices channel and the stdout drain forwards events on it.
- Core spawns a forwarder (only when an app is selected) mapping routed/lost to
UiEvent::ShareAudioActive(bool); the channel/task self-terminate on host EOF.
- App tracks share_audio_dropped and shows a transient warning under the "Sharing
your screen" badge when the chosen app's audio stops ("viewers hear silence
until it plays again"). Reset on start/stop/room-leave.
In-process mpsc only — no wire/GOSSIP_PROTO change. 435 lib tests (+2: app_audio
parse + the dropped-flag state machine), clippy --all-targets + release clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>