优化线程

whycxzp

2024-07-30 32f931c4f22a6970df71419ab94b6abb85876b22

优化线程

 app/src/main/java/com/whyc/widget/Camera2TextureView4.java

@@ -37,6 +37,8 @@
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;

import static android.os.Environment.DIRECTORY_DOCUMENTS;

@@ -76,6 +78,8 @@
    //主页面的视图
    private LinearLayout llUpText;
    private TextView tvDevice;

    ExecutorService imageExecutor = Executors.newSingleThreadExecutor();

    public Camera2TextureView4(Context context) {
        super(context,null);
@@ -284,22 +288,24 @@

        //        Image imageCopy = ImageReader.newInstance(videoWidth, videoHeight, ImageFormat.YUV_420_888, 1).acquireLatestImage();
        byte[] nv12 = new byte[I420size];
        byte[] nv21 = new byte[I420size];
//        byte[] nv21 = new byte[I420size];

        YUVUtil.YUVToNV21_NV12(image, nv12, videoWidth, videoHeight, "NV12");
        long now = image.getTimestamp();
        image.close();
        //图片截图
        SharedPreferences camera2Time = mContext.getSharedPreferences("camera2Time", Context.MODE_PRIVATE);
        long lastTime = camera2Time.getLong("time", 0);
        long secondsGap = (now - lastTime) / 1000000000;
        if (lastTime == 0 || secondsGap > 2) {
            camera2Time.edit().putLong("time", now).apply();
            //需要将nv12转化为nv21后进行图片存储
            nv21 = convertNV12toNV21(nv12);
            Bitmap bitmap = BitmapUtil.nv21ToBitmap(nv21, videoWidth, videoHeight);
            BitmapUtil.saveBitmapToFile(bitmap);
        }
        imageExecutor.execute(() -> {
            SharedPreferences camera2Time = mContext.getSharedPreferences("camera2Time", Context.MODE_PRIVATE);
            long lastTime = camera2Time.getLong("time", 0);
            long secondsGap = (now - lastTime) / 1000000000;
            if (lastTime == 0 || secondsGap > 2) {
                camera2Time.edit().putLong("time", now).apply();
                //需要将nv12转化为nv21后进行图片存储
                byte[] nv21 = convertNV12toNV21(nv12);
                Bitmap bitmap = BitmapUtil.nv21ToBitmap(nv21, videoWidth, videoHeight);
                BitmapUtil.saveBitmapToFile(bitmap);
            }
        });

        // 提交数据给MediaCodec
        try {
@@ -440,7 +446,7 @@

    private void stopPreviewThreadHandler(){
        //预览的处理线程
        try {
       /* try {
            previewThread.quitSafely();
            previewThread.join();
        } catch (InterruptedException e) {
@@ -448,7 +454,7 @@
        }finally {
            previewThread = null;
            previewThreadHandler = null;
        }
        }*/
    }

    private void initThreadHandlerForRecording() {