App/Service: Add nnstreamer to ml_inference_offloading service

This patch adds nnstreamer to android service.

Signed-off-by: Yelin Jeong <[email protected]>

ml_inference_offloading/build.gradle.kts

@@ -58,6 +58,10 @@ dependencies {
     implementation(libs.androidx.ui.graphics)
     implementation(libs.androidx.ui.tooling.preview)
     implementation(libs.androidx.material3)
+    implementation(fileTree(mapOf(
+        "dir" to "libs",
+        "include" to listOf("*.aar", "*.jar")
+    )))
     testImplementation(libs.junit)
     androidTestImplementation(libs.androidx.junit)
     androidTestImplementation(libs.androidx.espresso.core)

ml_inference_offloading/libs/Readme.txt

@@ -0,0 +1 @@
+To run this sample, copy nnstreamer-api library file into 'libs' directory.

ml_inference_offloading/src/main/java/ai/nnstreamer/ml/inference/offloading/MainService.kt

@@ -13,10 +13,13 @@ import android.os.IBinder
 import android.os.Looper
 import android.os.Message
 import android.os.Process
+import android.util.Log
 import android.widget.Toast
 import androidx.core.app.NotificationCompat
 import androidx.core.app.ServiceCompat
 import androidx.core.content.ContextCompat
+import org.nnsuite.nnstreamer.NNStreamer
+
 
 class MainService : Service() {
     private inner class MainHandler(looper: Looper) : Handler(looper) {
@@ -36,6 +39,7 @@ class MainService : Service() {
     private lateinit var serviceHandler : MainHandler
     private lateinit var serviceLooper : Looper
     private lateinit var handlerThread: HandlerThread
+    private var initialized = false
 
     private fun startForeground() {
         // Get NotificationManager
@@ -73,6 +77,7 @@ class MainService : Service() {
    }
 
     override fun onCreate() {
+        initNNStreamer()
         handlerThread = HandlerThread("ServiceStartArguments", Process.THREAD_PRIORITY_BACKGROUND).apply {
             start()
         }
@@ -102,4 +107,22 @@ class MainService : Service() {
     override fun onDestroy() {
         Toast.makeText(this, "The MainService has been gone", Toast.LENGTH_SHORT).show()
     }
-}
+
+    private fun initNNStreamer() {
+        if (this.initialized) {
+            return
+        }
+        try {
+            initialized = NNStreamer.initialize(this)
+        } catch (e: Exception) {
+            e.printStackTrace()
+            Log.e(TAG, e.message!!)
+        } finally {
+            if (initialized) {
+                Log.i(TAG, "Version: " + NNStreamer.getVersion())
+            } else {
+                Log.e(TAG, "Failed to initialize NNStreamer")
+            }
+        }
+    }
+}