Question

我们正在使用canon eos sdk 2.14进行直播和拍摄。相机是佳能1200D

以下是相机设置：

直播模式：启用

自动对焦模式：Flexi

下面是代码

import java.awt.image.BufferedImage;
import java.io.File;

import javax.swing.ImageIcon;
import javax.swing.SwingWorker;

import edsdk.api.CanonCamera;
import edsdk.api.commands.FocusModeCommand.Mode;

public class CameraWorker {
    static CanonCamera camera = null;
    public SwingWorker<Void, Void> liveViewWorker = null, shootWorker = null;

    public void startCameraLive() {
        try {
            camera = new CanonCamera();
            if (camera != null && camera.openSession()) {
                if (camera.beginLiveView()) {
                    camera.setFocusMode(Mode.AUTO);
                    camera.setLiveViewMode(true);
                    liveViewWorker = new SwingWorker<Void, Void>() {
                        @Override
                        protected Void doInBackground() throws Exception {
                            try {
                                while (continueLoop) {
                                    try {
                                        Thread.sleep(100);
                                        camera.setLiveViewMode(true);
                                        final BufferedImage image = camera.downloadLiveView();

                                        if (image != null) {
                                                    ///set image to live view
                                        }else{
                                        System.out.println("NO LIVE VIEW>>>>>>>>>>>>>>>>>>>>>>");
                                        }
                                    } catch (Exception e) {
                                        System.out.println("Exception Occured while getting Live View....");
                                        e.printStackTrace();
                                    }
                                }
                            } catch (Exception e2) {
                                e2.printStackTrace();
                            }
                            return null;
                        }

                        protected void done() {
                            try {
                                camera.endLiveView();
                                camera.closeSession();
                            } catch (Exception e) {
                                e.printStackTrace();
                            }
                        }
                    };
                    liveViewWorker.execute();
                }else{
                System.out.println("Live View not started.....");
                }
            }
        } catch(Exception e){
            e.printStackTrace();
        }
    }

      public void onFaceCapture() {
          shootWorker = new SwingWorker<Void, Void>() {
                BufferedImage croppedFaceImage;
                @Override
                protected Void doInBackground() throws Exception {
                    File[] camPictures = camera.shoot();

                    if (camPictures != null && camPictures.length > 0) {
                        for (File curFile : camPictures){
                            try {
                                byte[] imageBuffer = FileNDirUtils.getFileBytes(curFile.getAbsolutePath());

                            }catch(Exception e1){
                                System.out.println("ERRORR:::::::::>>>>>>>>"+e1.getMessage());
                            }
                        }
                    }else{
                        System.out.println("camPictures Null");
                    }
                    return null;
                }
                protected void done() {
                    try {

                    ////////set final image to display


                    } catch(Exception e1){
                        System.out.println("ERRORR:::::::::>>>>>>>>"+e1.getMessage() +" reason ::: "+e1.getCause());
                        e1.printStackTrace();
                    }
                    finally {
                        System.out.println("Done in finally........1");
                    }
                }
            };
            shootWorker.execute();
        }
}

在上面的代码中我有两种方法

startCameraLive（）
onFaceCapture（）

首先我开始实时取景并连续显示下载的图像，当用户点击捕获按钮时，将执行第二种方法。这两个方法都按如下方式调用

SwingUtilities.invokeLater(new Runnable() {
    @Override
    public void run() {
        loop = true;
        cameraWorker = new CameraWorker();
        cameraWorker.startCameraLive();
    }
});

像这样的第二种方法

SwingUtilities.invokeLater(new Runnable() {
         @Override
         public void run() {
             timerDisplay.setVisible(false);
             face_position_msg.setVisible(false);
             cameraWorker = new CameraWorker();
             cameraWorker.onFaceCapture();
         }
   });

现在问题::::

设置为在开始时启用的实时流模式将自动禁用。我们需要重新设置它。

camera.setFocusMode（Mode.AUTO）;

camera.setLiveViewMode（真）;

但是当相机卡住时，实时取景模式将被禁用。

我们怎样才能摆脱这种困境，我们想知道这个问题的根本原因。根本没有例外:(

请帮忙......

Answer 1

您是否尝试过使用Swingworkers方法：

System.out.println(javax.swing.SwingUtilities.isEventDispatchThread());

或者可能在您的课程中添加“扩展SwingWorker”？

佳能相机在一段时间后卡住了 - 1200D EOS sdk java

1 个答案: