From 9b4cfe97b66d17be85f4f879feb5dfbb0b60423a Mon Sep 17 00:00:00 2001
From: Captain Arepa <captain_arepa@proton.me>
Date: Tue, 21 May 2024 13:28:03 -0400
Subject: [PATCH] camera2  implementation (WIP)

---
 .../cameraxtestappjava/MainActivity.java      |  2 +-
 .../camera/CustomCamera2.java                 | 75 +++++++++++++++++++
 .../main/res/layout/custom_camera2_view.xml   |  2 +-
 3 files changed, 77 insertions(+), 2 deletions(-)
 create mode 100644 app/src/main/java/com/example/cameraxtestappjava/camera/CustomCamera2.java

diff --git a/app/src/main/java/com/example/cameraxtestappjava/MainActivity.java b/app/src/main/java/com/example/cameraxtestappjava/MainActivity.java
index f9f5bc0..a0010c2 100644
--- a/app/src/main/java/com/example/cameraxtestappjava/MainActivity.java
+++ b/app/src/main/java/com/example/cameraxtestappjava/MainActivity.java
@@ -165,7 +165,7 @@ public class MainActivity extends AppCompatActivity {
         mMediaRecorder = new MediaRecorder();
 
         tv = findViewById(R.id.tv);
-        textureView = binding.c2Camera.texture;
+        textureView = binding.c2Camera.tvCameraTextureView;
         textureView.setSurfaceTextureListener(textureListener);
 
         takePictureButton = binding.c2Camera.btnTakepicture;
diff --git a/app/src/main/java/com/example/cameraxtestappjava/camera/CustomCamera2.java b/app/src/main/java/com/example/cameraxtestappjava/camera/CustomCamera2.java
new file mode 100644
index 0000000..805bc5e
--- /dev/null
+++ b/app/src/main/java/com/example/cameraxtestappjava/camera/CustomCamera2.java
@@ -0,0 +1,75 @@
+package com.example.cameraxtestappjava.camera;
+
+import android.hardware.camera2.CameraCaptureSession;
+import android.hardware.camera2.CameraCharacteristics;
+import android.hardware.camera2.CameraDevice;
+import android.hardware.camera2.CameraManager;
+import android.hardware.camera2.CaptureRequest;
+import android.media.ImageReader;
+import android.media.MediaRecorder;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.util.Range;
+import android.util.Size;
+import android.util.SparseIntArray;
+import android.view.Surface;
+import android.view.TextureView;
+import android.widget.ImageButton;
+import android.widget.TextView;
+
+import java.io.File;
+import java.util.Comparator;
+
+public class CustomCamera2 {
+    private static final String TAG = "AndroidCameraApi";
+    private ImageButton takePictureButton;
+    private TextureView textureView;
+    private TextView tv;
+    private static final SparseIntArray ORIENTATIONS = new SparseIntArray();
+
+    static {
+        ORIENTATIONS.append(Surface.ROTATION_0, 90);
+        ORIENTATIONS.append(Surface.ROTATION_90, 0);
+        ORIENTATIONS.append(Surface.ROTATION_180, 270);
+        ORIENTATIONS.append(Surface.ROTATION_270, 180);
+    }
+
+    private static class CompareSizeByArea implements Comparator<Size> {
+
+        @Override
+        public int compare(Size ths, Size rhs) {
+            return Long.signum((long) ths.getWidth() * ths.getHeight() /
+                    (long) rhs.getWidth() * rhs.getHeight());
+        }
+    }
+
+    private String cameraId;
+    private String mCameraId;
+    private String defaultCameraId = "0";
+    Range<Integer> fps = new Range<>(110, 120);
+    private Range<Integer>[] availableFpsRange;
+    private Size mPreviewSize;
+    private Size mVideoSize;
+    private int totalRotation;
+    protected CameraDevice cameraDevice;
+
+    protected String[] cameraIds;
+    protected CameraManager cameraManager;
+    protected CameraCharacteristics cameraCharacteristics;
+    protected CameraCaptureSession cameraCaptureSessions;
+    protected CaptureRequest captureRequest;
+    protected CaptureRequest.Builder mCaptureRequestBuilder;
+    private Size imageDimension;
+    private ImageReader imageReader;
+    private boolean isRecording = false;
+    private File file;
+    private File fileFolder;
+    File videoFile;
+    private static final int REQUEST_CAMERA_PERMISSION = 200;
+    private boolean mFlashSupported;
+    private Handler mBackgroundHandler;
+    private HandlerThread mBackgroundThread;
+    private MediaRecorder mMediaRecorder;
+    private TextureView mTextureView;
+    private CaptureRequest.Builder captureRequestBuilder;
+}
diff --git a/app/src/main/res/layout/custom_camera2_view.xml b/app/src/main/res/layout/custom_camera2_view.xml
index 4ee059b..b2ad009 100644
--- a/app/src/main/res/layout/custom_camera2_view.xml
+++ b/app/src/main/res/layout/custom_camera2_view.xml
@@ -8,7 +8,7 @@
     tools:context=".MainActivity">
 
     <TextureView
-        android:id="@+id/texture"
+        android:id="@+id/tvCameraTextureView"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
         android:layout_above="@+id/btn_takepicture"