OpenCV/Android BufferQueue错误:表面纹理已被放弃

Question

Android和OpenCV的新功能.一直在努力实施新书中的代码,掌握OpenCV与实用计算机视觉项目.该应用程序基本上使用OpenCV在相机预览上呈现卡通化图像.您可以触摸屏幕以保存卡通图像.

作者的源代码位于此处.

我对CartoonifierApp.java文件进行了一些小修改(见下文),以便我可以使用OpenCV Manager应用程序静态加载漫画器库(原始代码抛出了UnsatisfiedLinkError).

我面临的问题是当我将应用程序加载到我的Galaxy Nexus(Android 4.1.1)上时,我得到一个空的黑屏.我的LogCat说:

E/BufferQueue(4744):[unnamed-4744-0] setBufferCount:SurfaceTexture已被放弃!E/Cartoonifier :: SurfaceView(4744):startPreview()失败

我认为这是一个记忆问题.我知道cpp代码可以工作,因为它在我的计算机上运行良好 - 虽然在相对较新的笔记本电脑(华硕U46E)上渲染很慢.

我不知道如何解决这个问题.我找到的唯一有用的建议是在这里.如果我在CatoonifierVewBase.java中替换我的setPreview方法

 if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB)
     mCamera.setPreviewTexture( new SurfaceTexture(10) );
 else
     mCamera.setPreviewDisplay(null);

同

 mCamera.setPreviewDisplay(mHolder);

然后发生的事情是相机正常工作,我可以通过触摸屏幕保存卡通图像.请注意,这并不是理想的结果,因为我想在相机预览上不断地对图像进行漫画.相机只是工作,因为我没有写到表面视图(至少这是我的理解).前面提到的网站的答案有一些解决方法,但我不知道他在说什么.

顺便说一句,我已经尝试了所有OpenCV4Android应用程序示例,它们的工作正常.我也在使用OpenCV版本2.4.3.API级别目标是15.

完整Logcat:

12-22 15:33:07.966:I/CartoonifierApp(5999):实例化新类com.Cartoonifier.CartoonifierApp 12-22 15:33:07.966:I/CartoonifierApp(5999):调用onCreate 12-22 15:33:07.966 :I/CartoonifierApp(5999):尝试加载OpenCV库12-22 15:33:07.982:I/Cartoonifier :: SurfaceView(5999):实例化新类com.Cartoonifier.CartoonifierView 12-22 15:33:07.990:I/CartoonifierApp(5999):onResume 12-22 15:33:07.990:I/Cartoonifier :: SurfaceView(5999):openCamera 12-22 15:33:07.990:I/Cartoonifier :: SurfaceView(5999):releaseCamera 12-22 15:33:08.099:D/OpenCVManager/Helper(5999):创建服务连接12-22 15:33:08.099:D/OpenCVManager/Helper(5999):尝试获取库路径12-22 15:33:08.138: D/OpenCVManager/Helper(5999):试图获取库列表12-22 15:33:08.169:D/OpenCVManager/Helper(5999):库列表:""12-22 15:33:08.169:D/OpenCVManager/Helper(5999):首次尝试加载库12-22 15:33:08.169:D/OpenCVManager/Helper(5999):尝试初始化OpenCV库12-22 15:3 3:08.169:D/OpenCVManager/Helper(5999):尝试加载库/data/data/org.opencv.engine/lib/libopencv_java.so 12-22 15:33:08.169:

D/dalvikvm(5999):尝试加载lib /data/data/org.opencv.engine/lib/libopencv_java.so 0x41936a40 12-22

15:33:08.193:D/dalvikvm(5999):添加了共享库/data/data/org.opencv.engine/lib/libopencv_java.so 0x41936a40 12-22

15:33:08.193:D/OpenCVManager/Helper(5999):OpenCV libs init没问题!

12-22 15:33:08.193:D/OpenCVManager/Helper(5999):首次尝试加载库是正常12-22 15:33:08.193:D/OpenCVManager/Helper(5999):初始化状态为0 12- 22 15:33:08.193:D/OpenCVManager/Helper(5999):解除服务12-22 15:33:08.200:D/OpenCVManager/Helper(5999):使用回调呼叫12-22 15:33:08.200:I/CartoonifierApp(5999):OpenCV加载成功

12-22 15:33:08.200:D/dalvikvm(5999):尝试加载lib /data/data/com.Cartoonifier/lib/libcartoonifier.so 0x41936a40 12-22

15:33:08.200:d/dalvikvm(5999):加入LIB /data/data/com.Cartoonifier/lib/libcartoonifier.so 0x41936a40 12-22共享

15:33:08.200:D/dalvikvm(5999):在/data/data/com.Cartoonifier/lib/libcartoonifier.so 0x41936a40中没有找到JNI_OnLoad,跳过init 12-22 15:33:08.200:D/OpenCVManager/Helper( 5999):创建服务连接12-22 15:33:08.200:D/OpenCVManager/Helper(5999):尝试获取库路径12-22

15:33:08.232:D/OpenCVManager/Helper(5999):尝试获取库列表12-22 15:33:08.271:D/OpenCVManager/Helper(5999):库列表:""

12-22 15:33:08.271:D/OpenCVManager/Helper(5999):首次尝试加载库12-22 15:33:08.271:D/OpenCVManager/Helper(5999):试图

init OpenCV libs 12-22 15:33:08.271:D/OpenCVManager/Helper(5999):尝试加载库/data/data/org.opencv.engine/lib/libopencv_java.so 12-22 15:33:08.271: d/dalvikvm(5999):试图加载LIB /data/data/org.opencv.engine/lib/libopencv_java.so 0x41936a40 12-22

15:33:08.271:D/dalvikvm(5999):共享库'/data/data/org.opencv.engine/lib/libopencv_java.so'已加载到同一个CL 0x41936a40 12-22 15:33:08.271:D/OpenCVManager/Helper(5999):OpenCV libs init没问题!12-22 15:33:08.271:D/OpenCVManager/Helper(5999):首次尝试加载库是没问题的

12-22 15:33:08.271:D/OpenCVManager/Helper(5999):初始化状态为0 12-22 15:33:08.271:D/OpenCVManager/Helper(5999):解除服务12-22 15:33 :08.271:D/OpenCVManager/Helper(5999):使用回调调用12-22 15:33:08.271:I/CartoonifierApp(5999):OpenCV已成功加载12-22 15:33:08.279:D/dalvikvm(5999):试图加载lib /data/data/com.Cartoonifier/lib/libcartoonifier.so 0x41936a40 12-22 15:33:08.279:D/dalvikvm(5999):共享库'/data/data/com.Cartoonifier/lib/libcartoonifier .so'已加载到相同的CL 0x41936a40 12-22 15:33:08.302:I/Cartoonifier :: SurfaceView(5999):surfaceCreated 12-22 15:33:08.302:I/Cartoonifier :: SurfaceView(5999):surfaceChanged( ).窗口大小:1196x670 12-22 15:33:08.302:I/Cartoonifier :: SurfaceView(5999):setupCamera(1196x670)12-22 15:33:08.302:I/Cartoonifier :: SurfaceView(5999):开始处理线程12 -22 15:33:08.310:I/Cartoonifier :: SurfaceView(5999):找到相机分辨率1920x1080 12-22 15:33:08.310:I/Cartoonifier :: SurfaceView(5999):找到相机分辨率1280x720 12-22 15: 33:08.310:I/Cartoonifier :: SurfaceView(5999):找到相机分辨率960x720 12-22 15:33:08.310:I/Cartoonifier :: SurfaceView(5999):找到相机分辨率800x480 12-22 15:33:08.310: I/Cartoonifier :: SurfaceView(5999):找到相机分辨率720x576 12-22 15:33:08.310:I/Cartoonifier :: SurfaceView(5999):找到相机分辨率720x480 12-22 15:33:08.310:I/Cartoonifier: :SurfaceView(5999):找到相机分辨率768x576 12-22 15:33:08.310:I/Cartoonifier :: SurfaceView(5999):找到相机分辨率640x480 12-22 15:33:08.310:I/Cartoonifier :: SurfaceView(5999) ):找到相机分辨率320x240 12-22 15:33:08.310:I/Cartoonifie r :: SurfaceView(5999):找到相机分辨率352x288 12-22 15:33:08.310:I/Cartoonifier :: SurfaceView(5999):找到相机分辨率240x160 12-22 15:33:08.310:I/Cartoonifier :: SurfaceView (5999):找到相机分辨率176x144 12-22 15:33:08.310:I/Cartoonifier :: SurfaceView(5999):找到相机分辨率128x96 12-22 15:33:08.318:I/Cartoonifier :: SurfaceView(5999):选择摄像头预览尺寸:1280x720 12-22 15:33:08.333:D/dalvikvm(5999):GC_FOR_ALLOC释放131K,2%释放10807K/11011K,暂停13ms,总计13ms

12-22 15:33:08.333:I/dalvikvm-heap(5999):将堆(frag case)增长到11.902MB,用于1382416字节分配

12-22 15:33:08.357:d/dalvikvm(5999):GC_CONCURRENT释放1K,游离的3%12156K/12423K,暂停12ms的+ 1毫秒,总24MS

12-22 15:33:08.357:D/dalvikvm(5999):WAIT_FOR_CONCURRENT_GC阻塞了11ms

12-22 15:33:08.365:D/dalvikvm(5999):GC_FOR_ALLOC释放0K,3%释放12156K/12423K,暂停9ms,总计9ms

12-22 15:33:08.372:I/dalvikvm-heap(5999):将堆(frag case)增长到13.219MB,用于1382416字节分配

12-22 15:33:08.388:d/dalvikvm(5999):GC_CONCURRENT释放0K,游离的3%13506K/13831K,暂停11毫秒+ 1毫秒,总21ms

12-22 15:33:08.388:D/dalvikvm(5999):WAIT_FOR_CONCURRENT_GC阻塞了7ms

12-22 15:33:08.404:D/dalvikvm(5999):GC_FOR_ALLOC释放<1K,3%自由13506K/13831K,暂停9ms,总计10ms

12-22 15:33:08.411:I/dalvikvm-heap(5999):将堆(frag case)增长到16.735MB,用于3686416字节分配

12-22 15:33:08.427:D/dalvikvm(5999):GC_CONCURRENT释放<1K,3%自由17106K/17479K,暂停12ms + 1ms,总共22ms

12-22 15:33:08.427:D/dalvikvm(5999):WAIT_FOR_CONCURRENT_GC阻塞了10ms

12-22 15:33:08.443:D/dalvikvm(5999):GC_FOR_ALLOC释放<1K,3%释放17106K/17479K,暂停10ms,总计10ms

12-22 15:33:08.450:I/dalvikvm-heap(5999):将堆(frag case)增长到20.250MB进行3686416字节分配

12-22 15:33:08.466:d/dalvikvm(5999):GC_CONCURRENT释放0K,免费2%20706K/21127K,暂停12ms的+ 2ms的,总22毫秒

12-22 15:33:08.466:D/dalvikvm(5999):WAIT_FOR_CONCURRENT_GC阻塞了5ms

12-22 15:33:08.466:I/Cartoonifier :: SurfaceView(5999):开始预览

12-22 15:33:08.497:E/BufferQueue(5999):[unnamed-5999-0] setBufferCount:SurfaceTexture已被放弃!

12-22 15:33:08.505:E/Cartoonifier :: SurfaceView(5999):mCamera.startPreview()失败

来自CartoonifierApp.java的片段显示我的修改

private BaseLoaderCallback  mLoaderCallback = new BaseLoaderCallback(this) {
    @Override
    public void onManagerConnected(int status) {
        switch (status) {
            case LoaderCallbackInterface.SUCCESS:
            {
                Log.i(TAG, "OpenCV loaded successfully");

                // Load native library after(!) OpenCV initialization
                System.loadLibrary("cartoonifier");
            } break;
            default:
            {
                super.onManagerConnected(status);
            } break;
        }
    }
};

/** Called when the activity is first created. */
@Override
public void onCreate(Bundle savedInstanceState) {
    Log.i(TAG, "called onCreate");
    super.onCreate(savedInstanceState);

    Log.i(TAG, "Trying to load OpenCV library");
    if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback))
    {
      Log.e(TAG, "Cannot connect to OpenCV Manager");
    }

    requestWindowFeature(Window.FEATURE_NO_TITLE);

    mView = new CartoonifierView(this);
    setContentView(mView);

    // Call our "onTouch()" callback function whenever the user touches the screen.
    mView.setOnTouchListener(this);
}


@Override
protected void onPause() {
    Log.i(TAG, "onPause");
    super.onPause();
    mView.releaseCamera();
}

@Override
public void onResume()
{
    super.onResume();
    Log.i(TAG, "onResume");
    if (!OpenCVLoader.initAsync(OpenCVLoader.OPENCV_VERSION_2_4_3, this, mLoaderCallback))
    {
      Log.e(TAG, "Cannot connect to OpenCV Manager");
    }   

    if( !mView.openCamera() ) {
        AlertDialog ad = new AlertDialog.Builder(this).create();  
        ad.setCancelable(false); // This blocks the 'BACK' button  
        ad.setMessage("Fatal error: can't open camera!");  
        /*ad.setButton("OK", new DialogInterface.OnClickListener() {  
            public void onClick(DialogInterface dialog, int which) {  
                dialog.dismiss();                      
                finish();
            }  
        });  */
        ad.show();
    }
}

Answer 1

这个问题不久前在OpenCV中得到了解决.

不确定它是应用程序还是操作系统错误.问题是调用Bitmap.createBitmap分离SurfaceTexture用于可视化的对象.

解决方法是修改基类的setupCamera方法View并进行更改

try {
    setPreview();
} catch (IOException e) {
    Log.e(TAG, "mCamera.setPreviewDisplay/setPreviewTexture fails: " + e);
}

/* Notify that the preview is about to be started and deliver preview size */
onPreviewStarted(params.getPreviewSize().width, params.getPreviewSize().height);

至

/* Notify that the preview is about to be started and deliver preview size */
onPreviewStarted(params.getPreviewSize().width, params.getPreviewSize().height);

try {
    setPreview();
} catch (IOException e) {
    Log.e(TAG, "mCamera.setPreviewDisplay/setPreviewTexture fails: " + e);
}

(线的顺序改变了)