move package, interface audio

NoiseCapture/src/androidMain/AndroidManifest.xml

@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <manifest xmlns:android="http://schemas.android.com/apk/res/android">
 
+    <uses-permission android:name="android.permission.RECORD_AUDIO" />
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"

NoiseCapture/src/androidMain/kotlin/org/noise_planet/noisecapture/AndroidAudioSource.kt

@@ -0,0 +1,37 @@
+package org.noise_planet.noisecapture
+
+import android.annotation.SuppressLint
+import android.media.AudioFormat
+import android.media.AudioRecord
+import android.media.MediaRecorder
+
+class AndroidAudioSource : AudioSource {
+    private lateinit var audioRecord: AudioRecord
+
+    @SuppressLint("MissingPermission")
+    override fun setup(
+        sampleRate: Int,
+        bufferSize: Int,
+        callback: AudioCallback
+    ): AudioSource.InitializeErrorCode {
+        val channel = AudioFormat.CHANNEL_IN_MONO
+        val encoding = AudioFormat.ENCODING_PCM_FLOAT
+        val minimalBufferSize = AudioRecord.getMinBufferSize(sampleRate, channel, encoding)
+        when {
+            minimalBufferSize == AudioRecord.ERROR_BAD_VALUE || minimalBufferSize == AudioRecord.ERROR  ->
+                return AudioSource.InitializeErrorCode.INITIALIZE_SAMPLE_RATE_NOT_SUPPORTED
+            minimalBufferSize > bufferSize ->
+                return AudioSource.InitializeErrorCode.INITIALIZE_WRONG_BUFFER_SIZE
+        }
+        audioRecord = AudioRecord(MediaRecorder.AudioSource.VOICE_RECOGNITION, sampleRate, channel, encoding, bufferSize)
+        return AudioSource.InitializeErrorCode.INITIALIZE_OK
+    }
+
+    override fun release() {
+        TODO("Not yet implemented")
+    }
+
+    override fun getMicrophoneLocation(): AudioSource.MicrophoneLocation {
+        TODO("Not yet implemented")
+    }
+}

NoiseCapture/src/androidMain/kotlin/org/noise_planet/noisecapture/CreateAudioSource.kt

@@ -0,0 +1,8 @@
+package org.noise_planet.noisecapture
+
+import org.noise_planet.noisecapture.AndroidAudioSource
+import org.noise_planet.noisecapture.AudioSource
+
+actual fun CreateAudioSource(): AudioSource {
+    return AndroidAudioSource()
+}

NoiseCapture/src/androidMain/kotlin/org/noise_planet/noisecapture/MainActivity.kt

@@ -1,6 +1,5 @@
 package org.noise_planet.noisecapture
 
-import App
 import android.os.Bundle
 import androidx.activity.ComponentActivity
 import androidx.activity.compose.setContent

NoiseCapture/src/androidMain/kotlin/Platform.android.kt → NoiseCapture/src/androidMain/kotlin/org/noise_planet/noisecapture/Platform.android.kt

@@ -1,3 +1,5 @@
+package org.noise_planet.noisecapture
+
 import android.os.Build
 
 class AndroidPlatform : Platform {

NoiseCapture/src/androidUnitTest/kotlin/org/noise_planet/noisecapture/Test.android.kt

@@ -1,6 +1,5 @@
 package org.noise_planet.noisecapture
 
-import Greeting
 import org.junit.Assert.assertTrue
 import org.junit.Test
 

NoiseCapture/src/commonMain/kotlin/App.kt → NoiseCapture/src/commonMain/kotlin/org/noise_planet/noisecapture/App.kt

@@ -1,3 +1,5 @@
+package org.noise_planet.noisecapture
+
 import androidx.compose.animation.AnimatedVisibility
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.layout.Column

NoiseCapture/src/commonMain/kotlin/org/noise_planet/noisecapture/AudioCallback.kt

@@ -0,0 +1,5 @@
+package org.noise_planet.noisecapture
+
+interface AudioCallback {
+    fun onAudio(samples: FloatArray)
+}

NoiseCapture/src/commonMain/kotlin/org/noise_planet/noisecapture/AudioSource.kt

@@ -0,0 +1,26 @@
+package org.noise_planet.noisecapture
+
+/**
+ * Common interface to access Audio samples from device microphone
+ * As each device
+ */
+interface AudioSource {
+    enum class MicrophoneLocation { LOCATION_UNKNOWN, LOCATION_MAIN_BODY,
+        LOCATION_MAIN_BODY_MOVABLE, LOCATION_PERIPHERAL }
+
+    enum class InitializeErrorCode { INITIALIZE_OK, INITIALIZE_WRONG_BUFFER_SIZE,
+        INITIALIZE_SAMPLE_RATE_NOT_SUPPORTED}
+    /**
+     * @param sampleRate Sample rate in Hz
+     * @param bufferSize Buffer size in bytes
+     * @return InitializeErrorCode instance
+     */
+    fun setup(sampleRate: Int, bufferSize: Int, callback: AudioCallback) : InitializeErrorCode
+
+    fun release()
+
+    fun getMicrophoneLocation() : MicrophoneLocation
+
+}
+
+expect fun CreateAudioSource(): AudioSource

NoiseCapture/src/commonMain/kotlin/Greeting.kt → NoiseCapture/src/commonMain/kotlin/org/noise_planet/noisecapture/Greeting.kt

@@ -1,3 +1,5 @@
+package org.noise_planet.noisecapture
+
 class Greeting {
     private val platform = getPlatform()
 

NoiseCapture/src/commonMain/kotlin/Platform.kt → NoiseCapture/src/commonMain/kotlin/org/noise_planet/noisecapture/Platform.kt

@@ -1,3 +1,5 @@
+package org.noise_planet.noisecapture
+
 interface Platform {
     val name: String
 }

NoiseCapture/src/commonTest/kotlin/org/noise_planet/noisecapture/Test.kt

@@ -1,6 +1,5 @@
 package org.noise_planet.noisecapture
 
-import Greeting
 import kotlin.test.Test
 import kotlin.test.assertTrue
 

NoiseCapture/src/iosMain/kotlin/MainViewController.kt → NoiseCapture/src/iosMain/kotlin/org/noise_planet/noisecapture/MainViewController.kt

@@ -1,3 +1,5 @@
+package org.noise_planet.noisecapture
+
 import androidx.compose.ui.window.ComposeUIViewController
 
 fun MainViewController() = ComposeUIViewController { App() }

NoiseCapture/src/iosMain/kotlin/Platform.ios.kt → NoiseCapture/src/iosMain/kotlin/org/noise_planet/noisecapture/Platform.ios.kt

@@ -1,3 +1,5 @@
+package org.noise_planet.noisecapture
+
 import platform.UIKit.UIDevice
 
 class IOSPlatform: Platform {

NoiseCapture/src/iosTest/kotlin/org/noise_planet/noisecapture/Test.ios.kt

@@ -1,6 +1,5 @@
 package org.noise_planet.noisecapture
 
-import Greeting
 import kotlin.test.Test
 import kotlin.test.assertTrue