add setRequiredResolution method and sanity check on disable glresources

Author: pedroSG94

encoder/src/main/java/com/pedro/encoder/input/sources/video/Camera2Source.kt

@@ -260,4 +260,13 @@ class Camera2Source(context: Context): VideoSource() {
   fun getMaxSupportedFps(size: Size?, facing: CameraHelper.Facing = getCameraFacing()): Int {
     return camera.getSupportedFps(size, facing).maxOfOrNull { it.upper } ?: 30
   }
+
+  /**
+   * Set the required resolution for the camera.
+   * Must be called before prepareVideo or changeVideoSource. Otherwise it will be ignored.
+   */
+  fun setRequiredResolution(size: Size?) {
+    size?.let { checkResolutionSupported(it.width, it.height) }
+    camera.setRequiredResolution(size)
+  }
 }

encoder/src/main/java/com/pedro/encoder/input/video/Camera2ApiManager.kt

@@ -100,6 +100,7 @@ class Camera2ApiManager(context: Context) : CameraDevice.StateCallback() {
     private var fps = 30
     private val semaphore = Semaphore(0)
     private var cameraCallbacks: CameraCallbacks? = null
+    private var requiredSize: Size? = null
 
     interface ImageCallback {
         fun onImageAvailable(image: Image)
@@ -118,7 +119,7 @@ class Camera2ApiManager(context: Context) : CameraDevice.StateCallback() {
     }
 
     fun prepareCamera(surfaceTexture: SurfaceTexture, width: Int, height: Int, fps: Int) {
-        val optimalResolution = getOptimalResolution(Size(width, height), getCameraResolutions(facing))
+        val optimalResolution = requiredSize ?: getOptimalResolution(Size(width, height), getCameraResolutions(facing))
         Log.i(TAG, "optimal resolution set to: " + optimalResolution.width + "x" + optimalResolution.height)
         surfaceTexture.setDefaultBufferSize(optimalResolution.width, optimalResolution.height)
         this.surfaceEncoder = Surface(surfaceTexture)
@@ -220,6 +221,10 @@ class Camera2ApiManager(context: Context) : CameraDevice.StateCallback() {
             return characteristics.secureGet(CameraCharacteristics.INFO_SUPPORTED_HARDWARE_LEVEL) ?: -1
         }
 
+    fun setRequiredResolution(size: Size?) {
+        requiredSize = size
+    }
+
     fun openCameraBack() {
         openCameraFacing(Facing.BACK)
     }

encoder/src/main/java/com/pedro/encoder/utils/gl/GlUtil.java

@@ -163,7 +163,9 @@ private static Bitmap flipVerticalBitmap(Bitmap bitmap, int width, int height) {
   }
 
   public static void disableResources(int... vertex) {
-    for (int v: vertex) GLES20.glDisableVertexAttribArray(v);
+    for (int v: vertex) {
+      if (v >= 0 && v < GLES20.GL_MAX_VERTEX_ATTRIBS) GLES20.glDisableVertexAttribArray(v);
+    }
     GLES20.glBindTexture(GLES11Ext.GL_TEXTURE_EXTERNAL_OES, 0);
     GLES20.glBindTexture(GLES20.GL_TEXTURE_2D, 0);
     GLES20.glUseProgram(0);

extra-sources/src/main/java/com/pedro/extrasources/CameraXSource.kt

@@ -65,12 +65,13 @@ class CameraXSource(
   private var autoExposureEnabled = false
   private var autoWhiteBalanceEnabled = false
   private var fingerSpacing = 0f
+  private var requiredSize: Size? = null
 
   override val lifecycle: Lifecycle = lifecycleRegistry
 
   override fun create(width: Int, height: Int, fps: Int, rotation: Int): Boolean {
     val facing = if (facing == CameraSelector.LENS_FACING_BACK) CameraHelper.Facing.BACK else CameraHelper.Facing.FRONT
-    val optimalResolution = getOptimalResolution(Size(width, height), getCameraResolutions(facing).toTypedArray())
+    val optimalResolution = requiredSize ?: getOptimalResolution(Size(width, height), getCameraResolutions(facing).toTypedArray())
     preview = Preview.Builder()
       .setTargetFrameRate(Range(fps, fps))
       .setResolutionSelector(
@@ -89,7 +90,7 @@ class CameraXSource(
 
   override fun start(surfaceTexture: SurfaceTexture) {
     val facing = if (facing == CameraSelector.LENS_FACING_BACK) CameraHelper.Facing.BACK else CameraHelper.Facing.FRONT
-    val optimalResolution = getOptimalResolution(Size(width, height), getCameraResolutions(facing).toTypedArray())
+    val optimalResolution = requiredSize ?: getOptimalResolution(Size(width, height), getCameraResolutions(facing).toTypedArray())
     surfaceTexture.setDefaultBufferSize(optimalResolution.width, optimalResolution.height)
     this.surfaceTexture = surfaceTexture
     lifecycleRegistry.handleLifecycleEvent(Lifecycle.Event.ON_START)
@@ -343,4 +344,12 @@ class CameraXSource(
     if (autoWhiteBalanceEnabled) flags = flags or FocusMeteringAction.FLAG_AWB
     return flags
   }
+
+  /**
+   * Set the required resolution for the camera.
+   * Must be called before prepareVideo or changeVideoSource. Otherwise it will be ignored.
+   */
+  fun setRequiredResolution(size: Size?) {
+    requiredSize = size
+  }
 }