molluskandClaude Opus 4.8
2e9164745f
Screen sharing spawned pixelpass with a bare `--host`, so pixelpass
captured the whole default-sink monitor — which contains peerspeak's own
call playout. A viewer therefore heard their OWN voice echoed back out of
the sharer's machine (confirmed live, backlog A23).
pixelpass already supports `--app <NAME>` (capture only one app's audio,
per-app PipeWire routing); peerspeak just never passed it. This wires that
flag through, peerspeak-side only — no pixelpass change.
- screenshare: pure `host_args(audio_app)` builds the host argv, appending
`--app=<name>` (single-token form so a hyphen-leading name can't be
reparsed as a flag) when an app is chosen; `sanitize_app_name` guards the
locally-chosen value; `list_audio_apps`/`parse_audio_apps` enumerate
currently-playing apps via `pactl -f json list sink-inputs` (mirroring how
pixelpass builds its own picker, so the names match what `--app` matches).
- core: `StartScreenShare { audio_app }` + `ListAudioApps`/`AudioAppsListed`.
- GUI: Share Screen now opens a small audio picker (radio-style modal) listing
the playing apps + "All system audio" (warned, = legacy whole-desktop);
picking one starts the share with `--app=<name>`. Reset on room leave.
+6 unit tests (host_args with/without/blank app, sanitize_app_name,
parse_audio_apps dedup + garbage). 430 lib tests, clippy --all-targets clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>