egutierrez
a3f75d61ec
Reorganizacion de dev/issues en subcarpetas (completed/, cpp/, gamedev/, kanban/, trading/, imagegen/, matrix/) y cambios acumulados en cmd/fn/pyrunner, .claude/commands y settings. Trabajo de otro LLM/sesion, commiteado a peticion del usuario para desbloquear el working tree. Excluido logs/ardour_mcp_server.log (ruido).
74 lines
3.5 KiB
Markdown
74 lines
3.5 KiB
Markdown
---
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id: "0158"
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title: "matrix-client-android calls LiveKit nativo: mic/cam/screen + PiP"
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status: pendiente
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priority: alta
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created: 2026-05-24
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related_flows: ["0011"]
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related_issues: ["0157", "0159", "0161"]
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dependencies: ["0157"]
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tags: [matrix, android, livekit, calls, webrtc, pip, audio-focus]
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---
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## Objetivo
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Llamadas nativas via `io.livekit:livekit-android` SDK oficial. Codecs HW (H.264/VP9 hardware decoder), audio focus + AEC/NS nativos, MediaSession para controls en lockscreen, Picture-in-Picture mode Android nativo. Soporta 1:1 + grupales (limite 16 del LiveKit config actual).
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## Tareas
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1. Backend (compartido con cliente PC):
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- Reusar `livekit_token_gen_go_infra` que esta en flow 0010.
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- Cliente Android pide token al mismo endpoint `/api/call/token` que el cliente PC.
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2. ViewModel:
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- `CallViewModel(matrixClient, roomId)`:
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- `joinCall()` — pide token + conecta `Room.connect()`.
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- `toggleMic()`, `toggleCamera()`, `toggleScreenShare()`.
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- `hangup()`.
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- `Flow<CallState>` con participants, tracks, connection state.
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3. Compose:
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- `CallScreen` fullscreen:
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- Grid tiles participantes (`Flow` layout responsive 1/2/4/9/16).
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- Tile principal: active speaker (track audio level del SDK).
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- Controles bottom: mic, cam, screen, raise hand, hangup.
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- `IncomingCallScreen` fullscreen con accept/decline (system overlay activity).
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- `CallTile` composable con `VideoView` (SurfaceViewRenderer del SDK).
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4. PiP (Picture-in-Picture):
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- `Activity` con `setPictureInPictureParams()`.
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- Auto-enter PiP al minimizar la app durante call.
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- PiP tile: video remoto + boton hangup.
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5. Audio routing:
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- `AudioFocusRequest` (Android 8+) — focus exclusivo durante call.
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- Switch speaker/earpiece/bluetooth via `AudioManager.setSpeakerphoneOn()` + connection state listeners para audifonos BT.
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- Echo cancellation + noise suppression: SDK los habilita por defecto, verificar.
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6. ICE/TURN: igual que cliente PC, depende del LiveKit config server-side.
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7. Tests:
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- Instrumented `Call1to1Test` con emulator + segundo cliente (PC) — connect, video, hangup.
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- Manual `ScreenShareTest` con device fisico.
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- Manual `4ParticipantsTest`.
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- Manual `PiPTest` — call activa + Home button -> PiP aparece.
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## Funciones del registry a crear
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- `livekit_call_kotlin_infra` — wrapper `Room` SDK + permission helpers.
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- `audio_routing_kotlin_infra` — speaker/earpiece/BT switching.
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- `CallScreen_kotlin_ui` — fullscreen call UI.
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- `CallTile_kotlin_ui` — tile con VideoView.
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- `IncomingCallScreen_kotlin_ui` — accept/decline overlay activity.
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## Acceptance
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- [ ] Start call desde Android -> PC Wails recibe y conecta.
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- [ ] 30s call con video+audio nativo (verificar HW codec via `adb shell dumpsys media.codec`).
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- [ ] Mute mic + apagar cam refleja en otro cliente.
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- [ ] Screen share desde Android (con `MediaProjection`) visible en PC.
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- [ ] PiP: minimizar app durante call -> tile flotante con video remoto.
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- [ ] Bluetooth headphones: cambio automatico al conectar/desconectar.
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- [ ] Battery: call 30min con AC + WiFi <15% drain.
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## Notas
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- Permissions runtime: `RECORD_AUDIO`, `CAMERA`, `POST_NOTIFICATIONS` (Android 13+), `FOREGROUND_SERVICE`, `FOREGROUND_SERVICE_MEDIA_PROJECTION` (Android 14+).
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- Foreground service requerido para mantener call con app en background (issue 0161).
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- E2EE en call (insertable streams): TBD post-DoD, igual que en cliente PC.
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- Connection service Android (sistema): TBD, opcional. Permite integracion con dialer system + Bluetooth Car. Valorar coste/beneficio.
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