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Game audio bar is now ALWAYS visible (TASK 4 gating removed, 2026-08-15): the show/hide machinery kept hiding the desktop/game meter whenever no full-screen game with sound was up or no TRAX music played, which the creator read as the meter being lost. Deleted IGameAudioDetector/GameAudioDetector/GameAudioHysteresis (Services/), the VM's 250ms DispatcherTimer poll + OnGameAudioActiveChanged/OnGameAudioPollTick + IsGameAudioBarVisible + _gameAudioBarActive/_gameAudioTimer/_gameAudioDetector, and the two detector test files (GameAudioDetectorTests, GameAudioHysteresisTests); MainWindow.xaml drops the Visibility binding so the bar renders unconditionally. Desktop audio is just automatic WASAPI loopback now. Docs in the same commit: ai.md (audio section + Services inventory), Services/index.md, ViewModels/index.md, TASKS.md TASK 9 item 7 follow-up, HANDOFF.md shipped state + stale poll-timer landmine removed. Build 0 warnings, 189 tests passing (8 detector tests removed)

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Llama Chile Shop
2026-08-15 15:53:51 -07:00
parent cc71ed5066
commit 24f16b2cd9
12 changed files with 38 additions and 345 deletions
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Services/index.md
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@@ -51,9 +51,6 @@ External-facing logic: YouTube API, persistence. See
| `Audio/AudioMixer.cs` | Owns both sources; capture starts once at startup (`MainViewModel.StartMicCaptureAsync`) and stops on `Shutdown` — NOT go-live (preview monitoring). Mic samples → `AudioLevelMeter` → `MicLevelChanged`; loopback samples → the game bar's meter via `LoopbackLevelChanged`. Surfaces mic connection state: `MicConnected`/`MicFailed` (drives the status dot) + `RestartMic()` (device swap mid-session, keeps loopback). Failures log via `AppLog`; mic failure zeroes the meter, loopback failure doesn't kill the mic. Note: the meter `Push` is unconditional (the `?.` on the event would otherwise skip the argument when nothing is subscribed) |
| `Audio/AudioLevelMeter.cs` | Pure smoothed RMS level (0..1): `Push(AudioSample)` + `Reset` — the unit-tested math behind `AudioLevel` and `GameAudioLevel`. `ToDisplay(float)` maps the raw linear RMS onto the meter's display scale (−60..0 dBFS spread across 0..1, with **+10 dB input amplification** so real speech peaks hit the red zone at maxed volume) — real speech/game RMS (~0.01..0.1) would otherwise leave a flat scale looking dead; ≤0.001 linear reads as zero (never idles on background noise) |
| `Audio/WaveToFloat.cs` | Pure WASAPI buffer → float conversion: IEEE float 32-bit direct, PCM 16-bit normalized, `WaveFormatExtensible` IEEE-float subformat GUID, trailing partial samples ignored |
| `IGameAudioDetector.cs` | **TASK 4 game audio bar seam**: `IsGameAudioActive` + `IsGameAudioActiveChanged` + `Poll()` — detects "a working game with sound is up in the preview" |
| `GameAudioHysteresis.cs` | Pure show/hide state machine for the game bar: SHOW = full-screen app holds sound ~500ms; HIDE = the app leaves fullscreen ~1s. **Silence never hides an active bar** — only the game leaving the preview does (creator's rule). No timers; `Update(isFullScreen, hasSound, now)` |
| `GameAudioDetector.cs` | Default `IGameAudioDetector`: composes a full-screen monitor provider (`IFullScreenDetector.GetForegroundFullScreenMonitorIndex`) + the live loopback level (floor 0.5%) into a `GameAudioHysteresis`. WPF-free; the VM owns the 250ms poll timer |
Related: constructed in [`ViewModels/MainViewModel.cs`](../ViewModels/MainViewModel.cs)
(no DI container yet). Models in [`Models/index.md`](../Models/index.md).