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android: ignore values that are unlikely to represent actual head data

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This commit is contained in:
Kavish Devar
2025-04-08 08:04:48 +05:30
parent a41c24a21c
commit 33ba7a2f2d
1 changed files with 9 additions and 13 deletions
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22
android/app/src/main/java/me/kavishdevar/aln/utils/GestureDetector.kt
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@@ -34,6 +34,8 @@ class GestureDetector(
private const val FAST_MOVEMENT_THRESHOLD = 300.0
private const val MIN_REQUIRED_EXTREMES = 3
private const val MAX_REQUIRED_EXTREMES = 4
private const val MAX_VALID_ORIENTATION_VALUE = 6000
}
val audio = GestureFeedback(ServiceManager.getService()?.baseContext!!)
@@ -64,7 +66,6 @@ class GestureDetector(
private var horizontalIncreasing: Boolean? = null
private var verticalIncreasing: Boolean? = null
private var detectionTimeout = 15000L
private val minConfidenceThreshold = 0.7
private var isRunning = false
@@ -79,7 +80,7 @@ class GestureDetector(
while (verticalAvgBuffer.size < 3) verticalAvgBuffer.add(0.0)
}
fun startDetection(doNotStop: Boolean = false, onGestureDetected: (Boolean) -> Unit) {
fun startDetection(doNotStop: Boolean = false, onGestureDetected: (Boolean) -> Unit) {
if (isRunning) return
Log.d(TAG, "Starting gesture detection...")
@@ -94,9 +95,7 @@ class GestureDetector(
airPodsService.sendPacket(START_CMD)
detectionJob = CoroutineScope(Dispatchers.Default).launch {
val startTime = System.currentTimeMillis()
while (isRunning && (System.currentTimeMillis() - startTime < detectionTimeout)) {
while (isRunning) {
delay(50)
val gesture = detectGestures()
@@ -110,16 +109,8 @@ class GestureDetector(
break
}
}
if (isRunning) {
Log.d(TAG, "Gesture detection timed out")
withContext(Dispatchers.Main) {
stopDetection(doNotStop)
}
}
}
}
fun stopDetection(doNotStop: Boolean = false) {
if (!isRunning) return
@@ -137,6 +128,11 @@ class GestureDetector(
fun processHeadOrientation(horizontal: Int, vertical: Int) {
if (!isRunning) return
if (abs(horizontal) > MAX_VALID_ORIENTATION_VALUE || abs(vertical) > MAX_VALID_ORIENTATION_VALUE) {
Log.d(TAG, "Ignoring likely calibration data: h=$horizontal, v=$vertical")
return
}
val horizontalDelta = horizontal - prevHorizontal
val verticalDelta = vertical - prevVertical