Java Android摄像头捕获请求和多个目标曲面存在问题

我正在尝试将相同的摄影机提要输出到2个SurfaceTexture。如果我只针对其中一个表面，应用程序运行良好（当然，只有一个显示摄像头提要）。如果我把两者都瞄准，它会在摄像机停止前工作很短的一段时间。当它冻结时，将调用onCaptureFailed方法（包含在CameraCaptureSession.CaptureCallback中）。 我使用的是运行安卓5.1的Nexus5。 这是我的密码：

package com.jackdelano.capstone2;

import android.app.Activity;
import android.content.Context;
import android.graphics.SurfaceTexture;
import android.hardware.camera2.CameraAccessException;
import android.hardware.camera2.CameraCaptureSession;
import android.hardware.camera2.CameraCharacteristics;
import android.hardware.camera2.CameraManager;
import android.hardware.camera2.CaptureFailure;
import android.hardware.camera2.CaptureRequest;
import android.hardware.camera2.params.StreamConfigurationMap;
import android.os.Handler;
import android.os.HandlerThread;
import android.support.v7.app.ActionBarActivity;
import android.os.Bundle;
import android.util.Log;
import android.util.Range;
import android.util.Size;
import android.view.Menu;
import android.view.MenuItem;
import android.view.Surface;
import android.view.TextureView;
import android.view.View;
import android.hardware.camera2.CameraDevice;
import android.widget.Toast;

import java.util.ArrayList;
import java.util.List;


public class CameraActivity extends Activity {


    HandlerThread myHandlerThread;
    Handler myHandler;
    CameraManager myCameraManager;
    String myCameraId; //either 0 or 1 I think
    CameraDevice myCameraDevice;
    TextureView myTextureView1;
    TextureView myTextureView2;
    List<Surface> mySurfaceList;
    CameraCharacteristics myCameraCharacteristics;
    CaptureRequest.Builder myBuilder;
    Surface mySurface1;
    Surface mySurface2;
    boolean surfaceTexture1Available;
    boolean surfaceTexture2Available;




    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_camera);

        View decorView = getWindow().getDecorView();
        int uiOptions = View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_FULLSCREEN | View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN | View.SYSTEM_UI_FLAG_IMMERSIVE_STICKY;
        decorView.setSystemUiVisibility(uiOptions);

        myCameraId = "0";

        surfaceTexture1Available = false;
        surfaceTexture2Available = false;

        myTextureView1 = (TextureView) findViewById(R.id.myTextureView1);
        myTextureView2 = (TextureView) findViewById(R.id.myTextureView2);

        myTextureView1.setSurfaceTextureListener(mySurfaceTexture1Listener);
        myTextureView2.setSurfaceTextureListener(mySurfaceTexture2Listener);


        myHandlerThread = new HandlerThread("Camera");
        myHandlerThread.start();
        myHandler = new Handler(myHandlerThread.getLooper());

        myCameraManager = (CameraManager) this.getSystemService(Context.CAMERA_SERVICE);


    }

    void startPreview()
    {
        SurfaceTexture mySurfaceTexture1 = myTextureView1.getSurfaceTexture();
        SurfaceTexture mySurfaceTexture2 = myTextureView2.getSurfaceTexture();

        try {
            myCameraCharacteristics = myCameraManager.getCameraCharacteristics(myCameraId);
        }catch(CameraAccessException e) {
            e.printStackTrace();
        }

        StreamConfigurationMap configs = myCameraCharacteristics.get(CameraCharacteristics.SCALER_STREAM_CONFIGURATION_MAP);

        Size dimensions1 = configs.getOutputSizes(mySurfaceTexture1.getClass())[0];
        mySurfaceTexture1.setDefaultBufferSize(dimensions1.getWidth(), dimensions1.getHeight());
        Size dimensions2 = configs.getOutputSizes(mySurfaceTexture2.getClass())[0];
        mySurfaceTexture2.setDefaultBufferSize(dimensions2.getWidth(), dimensions2.getHeight());


        mySurface1 = new Surface(mySurfaceTexture1);
        mySurface2 = new Surface(mySurfaceTexture2);

        mySurfaceList = new ArrayList<Surface>();
        mySurfaceList.add(mySurface1);
        mySurfaceList.add(mySurface2);

        try {
            myCameraDevice.createCaptureSession(mySurfaceList, myCameraCaptureSessionStateCallback, myHandler);
        }catch(CameraAccessException e){
            e.printStackTrace();
        }

    }

TextureView.SurfaceTextureListener mySurfaceTexture1Listener = new TextureView.SurfaceTextureListener(){
    @Override
    public void onSurfaceTextureAvailable(SurfaceTexture _surfaceTexture, int width, int height) {

        surfaceTexture1Available = true;
        if(surfaceTexture2Available) {
            try {
                myCameraManager.openCamera(myCameraId, myCameraDeviceStateCallback, myHandler);
            } catch (CameraAccessException e) {
                e.printStackTrace();
            }
        }

    }

    @Override
    public boolean onSurfaceTextureDestroyed(SurfaceTexture _surfaceTexture) {

        return true;
    }

    @Override
    public void onSurfaceTextureSizeChanged(SurfaceTexture _surfaceTexture, int width, int height) {

    }

    @Override
    public void onSurfaceTextureUpdated(SurfaceTexture _surfaceTexture) {

    }
};

    TextureView.SurfaceTextureListener mySurfaceTexture2Listener = new TextureView.SurfaceTextureListener(){
        @Override
        public void onSurfaceTextureAvailable(SurfaceTexture _surfaceTexture, int width, int height) {

            surfaceTexture2Available = true;
            if(surfaceTexture1Available) {
                try {
                    myCameraManager.openCamera(myCameraId, myCameraDeviceStateCallback, myHandler);
                } catch (CameraAccessException e) {
                    e.printStackTrace();
                }
            }

        }

        @Override
        public boolean onSurfaceTextureDestroyed(SurfaceTexture _surfaceTexture) {

            return true;
        }

        @Override
        public void onSurfaceTextureSizeChanged(SurfaceTexture _surfaceTexture, int width, int height) {

        }

        @Override
        public void onSurfaceTextureUpdated(SurfaceTexture _surfaceTexture) {

        }
    };

    private CameraDevice.StateCallback myCameraDeviceStateCallback = new CameraDevice.StateCallback() {

        @Override
        public void onOpened(CameraDevice _cameraDevice) {
            myCameraDevice = _cameraDevice;
            startPreview();
        }

        @Override
        public void onDisconnected(CameraDevice _cameradevice) {

        }

        @Override
        public void onError(CameraDevice _cameradevice, int i) {
            Log.d("JUMBO", "Camera Device Error");
        }
    };

    private CameraCaptureSession.StateCallback myCameraCaptureSessionStateCallback = new CameraCaptureSession.StateCallback() {

        @Override
        public void onConfigureFailed(CameraCaptureSession _cameraCaptureSession) {
        }

        public void onConfigured(CameraCaptureSession myCameraCaptureSession) {
            try {
                myBuilder = myCameraDevice.createCaptureRequest(CameraDevice.TEMPLATE_PREVIEW);
            } catch (CameraAccessException e) {
                e.printStackTrace();
            }

//THIS IS WHERE I TARGET THE SURFACES. IF ONE OF THESE LINES IS OMITTED, BEHAVIOR IS AS EXPECTED.
            myBuilder.addTarget(mySurface1);
            myBuilder.addTarget(mySurface2);

            CaptureRequest myCaptureRequest = myBuilder.build();

            try {
                myCameraCaptureSession.setRepeatingRequest(myCaptureRequest, myCameraCaptureSessionCaptureCallback, myHandler);
            } catch (CameraAccessException e) {
                e.printStackTrace();
            }

        }
    };

private CameraCaptureSession.CaptureCallback myCameraCaptureSessionCaptureCallback = new CameraCaptureSession.CaptureCallback() {

    @Override
    public void onCaptureFailed(CameraCaptureSession session, CaptureRequest request, CaptureFailure failure) {
        Log.d("JUMBO", "capture failed" + Integer.toString(failure.getReason()));

    }
};


    void toast(String string) {
        Toast.makeText(this, string, Toast.LENGTH_LONG).show();
    }



}

package com.jackdelano.capstone2；
导入android.app.Activity；
导入android.content.Context；
导入android.graphics.SurfaceTexture；
导入android.hardware.camera2.CameraAccessException；
导入android.hardware.camera2.CameraCaptureSession；
导入android.hardware.camera2.CameraCharacteristics；
导入android.hardware.camera2.CameraManager；
导入android.hardware.camera2.CaptureFailure；
导入android.hardware.camera2.CaptureRequest；
导入android.hardware.camera2.params.StreamConfigurationMap；
导入android.os.Handler；
导入android.os.HandlerThread；
导入android.support.v7.app.ActionBarActivity；
导入android.os.Bundle；
导入android.util.Log；
导入android.util.Range；
导入android.util.Size；
导入android.view.Menu；
导入android.view.MenuItem；
导入android.view.Surface；
导入android.view.TextureView；
导入android.view.view；
导入android.hardware.camera2.CameraDevice；
导入android.widget.Toast；
导入java.util.ArrayList；
导入java.util.List；
公共类CameraActivity扩展了活动{
HandlerThread我的HandlerThread；
Handler myHandler；
CameraManager myCameraManager；
字符串myCameraId；//我认为是0还是1
我的相机设备；
纹理视图MyTextureView W1；
纹理视图MyTextureView 2；
列表mySurfaceList；
摄影特征我的摄影特征；
CaptureRequest.Builder-myBuilder；
表面mySurface1；
表面mySurface2；
布尔surfaceTexture1Available；
布尔surfaceTexture2Available；
@凌驾
创建时受保护的void（Bundle savedInstanceState）{
super.onCreate（savedInstanceState）；
setContentView（R.layout.activity_摄像头）；
View decorView=getWindow（）.getDecorView（）；
int uiOptions=View.SYSTEM_UI_FLAG_LAYOUT_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_HIDE_NAVIGATION | View.SYSTEM_UI_FLAG_全屏| View.SYSTEM_UI_FLAG_沉浸式|；
decorView.设置系统兼容性（uiOptions）；
myCameraId=“0”；
surfaceTexture1Available=假；
surfaceTexture2Available=假；
MyTextureView=（TextureView）findViewById（R.id.MyTextureView）；
myTextureView2=（TextureView）findViewById（R.id.myTextureView2）；
myTextureView1.setSurfaceTextureListener（mySurfaceTexture1Listener）；
myTextureView2.setSurfaceTextureListener（mySurfaceTexture2Listener）；
myHandlerThread=新HandlerThread（“摄像头”）；
myHandlerThread.start（）；
myHandler=新处理程序（myHandlerThread.getLooper（））；
myCameraManager=（CameraManager）this.getSystemService（Context.CAMERA_服务）；
}
void startPreview（）
{
SurfaceTexture mySurfaceTexture1=myTextureView1.getSurfaceTexture（）；
SurfaceTexture mySurfaceTexture2=myTextureView2.getSurfaceTexture（）；
试一试{
myCameraCharacteristics=myCameraManager.getCameraCharacteristics（myCameraId）；
}捕获（CameraAccessE异常）{
e、 printStackTrace（）；
}
StreamConfigurationMap configs=myCameraCharacteristics.get（CameraCharacteristics.SCALER\u STREAM\u CONFIGURATION\u MAP）；
Size dimensions1=configs.getOutputSizes（mySurfaceTexture1.getClass（））[0]；
mySurfaceTexture1.setDefaultBufferSize（维度s1.getWidth（），维度s1.getHeight（））；
Size dimensions2=configs.getOutputSizes（mySurfaceTexture2.getClass（））[0]；
mySurfaceTexture2.setDefaultBufferSize（dimensions2.getWidth（），dimensions2.getHeight（））；
mySurface1=新曲面（mySurfaceTexture1）；
mySurface2=新曲面（mySurfaceTexture2）；
mySurfaceList=newarraylist（）；
添加（mySurface1）；
添加（mySurface2）；
试一试{
myCameradDevice.createCaptureSession（mySurfaceList、myCameraCaptureSessionStateCallback、myHandler）；
}捕获（CameraAccessE异常）{
e、 printStackTrace（）；
}
}
TextureView.SurfaceTextRelistener mySurfaceTexture1Listener=新建TextureView.SurfaceTextRelistener（）{
@凌驾
SurfaceTexture上的公共空心可用（SurfaceTexture\u SurfaceTexture，int-width，int-height）{
SurfaceTexture1可用=真；
如果（表面结构2可用）{
试一试{
openCamera（myCameraRAID、myCameraDeviceStateCallback、myHandler）；
}捕获（CameraAccessE异常）{
e、 printStackTrace（）；
}
}
}
@凌驾
公共布尔onSurfaceTextureDestroyed（SurfaceTexture\u SurfaceTexture）{
返回true；
}
@凌驾
SurfaceTextureSizeChanged上的公共空隙（SurfaceTexture _SurfaceTexture，int-width，int-height）{
}
@凌驾
更新了SurfaceTexture上的公共空间（SurfaceTexture\u SurfaceTexture）{
}
};
TextureView.SurfaceTextRelister mySurfaceTexture2Listener=新建TextureView.SurfaceTextRelister（）{
@凌驾
SurfaceTexture上的公共空心可用（SurfaceTexture\u SurfaceTexture，int-width，int-height）{
surfaceTexture2Available=真；
如果（表面结构1可用）{
试一试{
openCamera（myCameraRAID、myCameraDeviceStateCallback、myHandler）；
}捕获（CameraAccessE异常）{
e、 printStackTrace（）；
}
}
}
@凌驾
公共布尔OnSurfaceTextureDestructed（SurfaceTe
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.jackdelano.capstone2.CameraActivity">

<TextureView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myTextureView1"
    android:layout_width="match_parent"
    android:layout_weight="1"
    android:layout_height="0dp" />

<TextureView
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/myTextureView2"
    android:layout_width="match_parent"
    android:layout_weight="1"
    android:layout_height="0dp"/>