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OutActivity.kt
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OutActivity.kt
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package com.example.stt
import android.annotation.SuppressLint
import android.content.Context
import android.content.pm.PackageManager
import android.graphics.*
import android.hardware.camera2.CameraCaptureSession
import android.hardware.camera2.CameraDevice
import android.hardware.camera2.CameraManager
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.os.Handler
import android.os.HandlerThread
import android.speech.tts.TextToSpeech
import android.speech.tts.UtteranceProgressListener
import android.util.Log
import android.view.Surface
import android.view.TextureView
import android.widget.ImageView
import android.widget.Toast
import androidx.core.content.ContextCompat
import com.example.stt.ml.BusOutBest
import com.example.stt.ml.BusOutLight
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.GlobalScope
import kotlinx.coroutines.delay
import kotlinx.coroutines.launch
import org.tensorflow.lite.Interpreter
import org.tensorflow.lite.support.common.FileUtil
import org.tensorflow.lite.support.image.ImageProcessor
import org.tensorflow.lite.support.image.ops.ResizeOp
import java.io.BufferedReader
import java.io.FileInputStream
import java.io.IOException
import java.io.InputStream
import java.io.InputStreamReader
import java.nio.ByteBuffer
import java.nio.ByteOrder
import java.nio.FloatBuffer
import java.nio.channels.FileChannel
import java.util.Locale
class OutActivity : AppCompatActivity() {
lateinit var labels:List<String>
var colors = listOf<Int>(
Color.BLUE, Color.GREEN, Color.RED, Color.CYAN, Color.GRAY, Color.BLACK,
Color.DKGRAY, Color.MAGENTA, Color.YELLOW, Color.RED)
val paint = Paint()
lateinit var imageProcessor: ImageProcessor
lateinit var bitmap:Bitmap
lateinit var imageView: ImageView
lateinit var cameraDevice: CameraDevice
lateinit var handler: Handler
lateinit var cameraManager: CameraManager
lateinit var textureView: TextureView
lateinit var model: BusOutLight
lateinit var interpreter: Interpreter
lateinit var tfliteModel: ByteBuffer
lateinit var tts: TextToSpeech
private val lastTTSRequestTime = mutableMapOf<String, Long>()
private val ttsRequestInterval = 3000
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_out)
get_permission()
tts = TextToSpeech(this) { status ->
if (status == TextToSpeech.SUCCESS) {
Toast.makeText(this, "TTS 초기화 성공", Toast.LENGTH_SHORT).show()
tts.language = Locale.KOREA
}
}
labels = FileUtil.loadLabels(this, "bus_out.txt")
imageProcessor = ImageProcessor.Builder()
.add(ResizeOp(640, 640, ResizeOp.ResizeMethod.BILINEAR))
.build()
model = BusOutLight.newInstance(this)
val handlerThread = HandlerThread("videoThread")
handlerThread.start()
handler = Handler(handlerThread.looper)
imageView = findViewById(R.id.imageView)
tfliteModel = loadModelFile(this, "bus_out_light.tflite") // Load the model file
interpreter = Interpreter(tfliteModel)
textureView = findViewById(R.id.textureView)
textureView.surfaceTextureListener = object:TextureView.SurfaceTextureListener{
override fun onSurfaceTextureAvailable(p0: SurfaceTexture, p1: Int, p2: Int) {
open_camera()
}
override fun onSurfaceTextureSizeChanged(p0: SurfaceTexture, p1: Int, p2: Int) {
}
override fun onSurfaceTextureDestroyed(p0: SurfaceTexture): Boolean {
return false
}
override fun onSurfaceTextureUpdated(p0: SurfaceTexture) {
processCameraImage()
}
}
cameraManager = getSystemService(Context.CAMERA_SERVICE) as CameraManager
}
private fun loadModelFile(context: Context, modelName: String): ByteBuffer {
val fileDescriptor = context.assets.openFd(modelName)
val inputStream = FileInputStream(fileDescriptor.fileDescriptor)
val fileChannel = inputStream.channel
val startOffset = fileDescriptor.startOffset
val declaredLength = fileDescriptor.declaredLength
return fileChannel.map(FileChannel.MapMode.READ_ONLY, startOffset, declaredLength)
}
private fun readLabelsFromFile(fileName: String): List<String> {
val labels = mutableListOf<String>()
try {
val inputStream: InputStream = assets.open(fileName)
val reader = BufferedReader(InputStreamReader(inputStream))
var line: String?
while (reader.readLine().also { line = it } != null) {
labels.add(line!!)
}
} catch (e: IOException) {
e.printStackTrace()
}
return labels
}
private fun speakOut(text: String) {
tts.speak(text, TextToSpeech.QUEUE_FLUSH, null, "")
}
private fun processCameraImage() {
handler.post {
try {
val labels = readLabelsFromFile("bus_out.txt")
val bitmap = textureView.bitmap ?: return@post
val resizedBitmap = Bitmap.createScaledBitmap(bitmap, 640, 640, false)
val floatBuffer = FloatBuffer.allocate(640 * 640 * 3)
for (y in 0 until 640) {
for (x in 0 until 640) {
val pixel = resizedBitmap.getPixel(x, y)
floatBuffer.put(((pixel shr 16 and 0xFF) / 255f)) // R
floatBuffer.put(((pixel shr 8 and 0xFF) / 255f)) // G
floatBuffer.put(((pixel and 0xFF) / 255f)) // B
}
}
floatBuffer.rewind()
val byteBuffer = ByteBuffer.allocateDirect(4 * 640 * 640 * 3)
byteBuffer.order(ByteOrder.nativeOrder())
byteBuffer.asFloatBuffer().put(floatBuffer)
val outputArray = Array(1) { Array(7) { FloatArray(8400) } }
interpreter.run(byteBuffer, outputArray)
val detections = outputArray[0]
val mutableBitmap = bitmap.copy(Bitmap.Config.ARGB_8888, true)
val canvas = Canvas(mutableBitmap)
val h = mutableBitmap.height
val w = mutableBitmap.width
val currentTime = System.currentTimeMillis()
val ttsManager = OUTTTSManager(this@OutActivity)
for (i in 0 until 8400) {
val detection = detections.map { it[i] }
// 클래스 확률 추출 및 가장 높은 확률의 클래스 찾기
val classScores = detection.slice(4..6)
val maxClassIndex = classScores.indices.maxByOrNull { classScores[it] } ?: -1
val maxScore = if (maxClassIndex != -1) classScores[maxClassIndex] else 0f
val label = if (maxClassIndex != -1) "Class ${maxClassIndex + 1}" else "Unknown" // 클래스 라벨
if (maxScore > 0.6) { // 임계값 설정
val xOffset = 20f
val x = (detection[0] * w) - xOffset
val yOffset = 200f // y축 오프셋
val y = (detection[1] * h) - yOffset // y 좌표 조정
val width = detection[2] * w
val height = detection[3] * h
paint.color = colors[maxClassIndex % colors.size] // 클래스별로 다른 색상
paint.style = Paint.Style.STROKE
val di: Map<String, String> = mapOf(
"207" to "207번 버스",
"306" to "306번 버스",
"entrance" to "입구"
)
// 클래스 라벨 및 점수 표시
paint.style = Paint.Style.FILL
paint.textSize = 70f // 글자 크기 설정
paint.strokeWidth = 8f
val label = if (maxClassIndex >= 0 && maxClassIndex < labels.size) {
labels[maxClassIndex] // 실제 라벨 사용
} else {
"Unknown"
}
var busar = ""
if (di[label] == "입구")
{
busar = di[label] + "가 앞에 있습니다"
}
else{
busar = di[label] + "가 도착했습니다"
}
val lastRequestTime = lastTTSRequestTime[label] ?: 0
if (currentTime - lastRequestTime > ttsRequestInterval) {
ttsManager.enqueueTTS(busar)
lastTTSRequestTime[label] = currentTime
}
}
}
runOnUiThread {
imageView.setImageBitmap(mutableBitmap)
}
} catch (e: Exception) {
Log.e("OutActivity", "Error in processCameraImage: ${e.message}")
e.printStackTrace()
}
}
}
// override fun onDestroy() {
// super.onDestroy()
// // Close the Interpreter to release resources
// if (::interpreter.isInitialized) {
// interpreter.close()
// }
// if (::cameraDevice.isInitialized) {
// cameraDevice.close() // Release camera resources
// }
// // ... other cleanup if necessary ...
// }
@SuppressLint("MissingPermission")
fun open_camera(){
cameraManager.openCamera(cameraManager.cameraIdList[0], object:CameraDevice.StateCallback(){
override fun onOpened(p0: CameraDevice) {
cameraDevice = p0
var surfaceTexture = textureView.surfaceTexture
var surface = Surface(surfaceTexture)
var captureRequest = cameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW)
captureRequest.addTarget(surface)
cameraDevice.createCaptureSession(listOf(surface), object: CameraCaptureSession.StateCallback(){
override fun onConfigured(p0: CameraCaptureSession) {
p0.setRepeatingRequest(captureRequest.build(), null, null)
}
override fun onConfigureFailed(p0: CameraCaptureSession) {
}
}, handler)
}
override fun onDisconnected(p0: CameraDevice) {
}
override fun onError(p0: CameraDevice, p1: Int) {
}
}, handler)
}
fun get_permission(){
if(ContextCompat.checkSelfPermission(this, android.Manifest.permission.CAMERA) != PackageManager.PERMISSION_GRANTED){
requestPermissions(arrayOf(android.Manifest.permission.CAMERA), 101)
}
}
override fun onRequestPermissionsResult(
requestCode: Int,
permissions: Array<out String>,
grantResults: IntArray
) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults)
if(grantResults[0] != PackageManager.PERMISSION_GRANTED){
get_permission()
}
}
}
class OUTTTSManager(private val outActivity : OutActivity) {
private val ttsQueue = ArrayDeque<String>()
private var isSpeaking = false
init {
outActivity.tts.setOnUtteranceProgressListener(object : UtteranceProgressListener() {
override fun onStart(utteranceId: String?) {
isSpeaking = true
}
override fun onDone(utteranceId: String?) {
GlobalScope.launch(Dispatchers.Main) {
isSpeaking = false
processQueue()
}
}
override fun onError(utteranceId: String?) {
// 오류 처리
}
})
}
fun enqueueTTS(message: String) {
ttsQueue.addLast(message)
if (!isSpeaking) {
processQueue()
}
}
private fun processQueue() {
if (ttsQueue.isNotEmpty()) {
val message = ttsQueue.removeFirst()
isSpeaking = true
speakOut(message)
}
}
private fun speakOut(message: String) {
GlobalScope.launch(Dispatchers.Main) {
outActivity.tts.speak(message, TextToSpeech.QUEUE_FLUSH, null, "")
Toast.makeText(outActivity, message, Toast.LENGTH_SHORT).show()
delay(7000)
isSpeaking = false
processQueue()
}
}
}