Own Android call video in the foreground call service

tools/chatgui-android/app/src/main/AndroidManifest.xml

@@ -82,7 +82,7 @@
         <service
             android:name=".data.CallService"
             android:exported="false"
-            android:foregroundServiceType="phoneCall|microphone" />
+            android:foregroundServiceType="phoneCall|microphone|camera" />
 
         <service android:name=".data.StreamService" android:exported="false" android:foregroundServiceType="camera|microphone" />
 

tools/chatgui-android/app/src/main/java/com/utun/chat/data/CallController.kt

@@ -24,6 +24,14 @@ object CallController : TelecomCallManager.Listener {
     private val scope = CoroutineScope(SupervisorJob() + Dispatchers.Main.immediate)
     private val _state = MutableStateFlow<CallState?>(null)
     val state: StateFlow<CallState?> = _state
+    private val _video = MutableStateFlow<CallVideoEngine?>(null)
+    val video: StateFlow<CallVideoEngine?> = _video
+    fun setVideo(settings: CallVideoSettings) {
+        checkMain()
+        val owner = service ?: return
+        if (_state.value?.phase != CallPhase.ACTIVE) return
+        if (owner.setVideoCapture(settings.enabled)) owner.video?.select(settings)
+    }
     private val _muted = MutableStateFlow(false)
     val muted: StateFlow<Boolean> = _muted
     private val _route = MutableStateFlow(AudioRoute.SPEAKER)
@@ -202,6 +210,7 @@ object CallController : TelecomCallManager.Listener {
         acceptSent = false
         answerWhenVisible = 0L
         owner?.shutdown()
+        _video.value = null
         proximity.stop()
         TelecomCallManager.setDisconnected(id, reason)
         TelecomCallManager.removeConnection(id)
@@ -327,6 +336,7 @@ object CallController : TelecomCallManager.Listener {
                     return
                 }
                 accepting = false
+                _video.value = owner.video
                 TelecomCallManager.setActive(id)
                 _state.value = st.copy(phase = CallPhase.ACTIVE, durationSeconds = 0, startedAtElapsedRealtime = SystemClock.elapsedRealtime())
                 owner.audio.router.onChanged = { route, headset -> routeChanged(route, headset) }

tools/chatgui-android/app/src/main/java/com/utun/chat/data/CallService.kt

@@ -43,6 +43,9 @@ class CallService : Service() {
     }
 
     val audio = CallAudioEngine()
+    var video: CallVideoEngine? = null
+        private set
+    private var cameraForeground = false
     private var callId = 0L
     private var wakeLock: PowerManager.WakeLock? = null
     private var powerEventsRegistered = false
@@ -137,7 +140,8 @@ class CallService : Service() {
         val micType = if (microphone && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R)
             ServiceInfo.FOREGROUND_SERVICE_TYPE_MICROPHONE else 0
         val types = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) {
-            ServiceInfo.FOREGROUND_SERVICE_TYPE_PHONE_CALL or micType
+            ServiceInfo.FOREGROUND_SERVICE_TYPE_PHONE_CALL or micType or
+                (if (cameraForeground && Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) ServiceInfo.FOREGROUND_SERVICE_TYPE_CAMERA else 0)
         } else 0
         ServiceCompat.startForeground(this, NOTIFICATION_ID, notification(), types)
         LogManager.addLog("INFO", "CallService", "foreground notification id=$callId phase=${CallController.state.value?.phase}")
@@ -149,7 +153,14 @@ class CallService : Service() {
             return false
         }
         audio.router.setPreferredRoute(ChatApplication.instance.configProvider.getCallAudioRoute())
-        return audio.start(id)
+        if (!audio.start(id)) return false
+        video = CallVideoEngine(this, id)
+        return true
+    }
+
+    fun setVideoCapture(enabled: Boolean): Boolean {
+        return try { cameraForeground = enabled; promote(true); true }
+        catch (e: Exception) { cameraForeground = false; LogManager.addLog("ERROR", "call", "camera foreground failed: ${e.message}"); false }
     }
 
     fun updateNotification() {
@@ -202,6 +213,7 @@ class CallService : Service() {
 
     private fun releaseResources() {
         val id = callId
+        video?.stop(); video = null; cameraForeground = false
         if (powerEventsRegistered) {
             try { unregisterReceiver(powerEvents) }
             catch (e: Exception) { LogManager.addLog("WARN", "CallService", "power receiver cleanup failed id=$id: ${e.message}") }