我正在开展项目工作，我希望将使用Webcam Capture获得的图像编码为.mp4文件。
我尝试了它在GitHub上的Encoder，但它一直给我错误的指令甚至不在库中（例如com.github.sarxos.webcam.WebcamProcessor）。
我该如何解决这个问题？
我是否遗漏了某些内容，或者我是否必须使用其他方法来执行此操作？
package application.Webcam;
import java.awt.Dimension;
import java.awt.image.BufferedImage;
import java.io.File;
import java.util.concurrent.atomic.AtomicReference;
import javafx.application.Application;
import javafx.application.Platform;
import javafx.beans.property.ObjectProperty;
import javafx.beans.property.SimpleObjectProperty;
import javafx.beans.value.ChangeListener;
import javafx.beans.value.ObservableValue;
import javafx.collections.FXCollections;
import javafx.collections.ObservableList;
import javafx.concurrent.Task;
import javafx.embed.swing.SwingFXUtils;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Orientation;
import javafx.geometry.Pos;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.image.Image;
import javafx.scene.image.ImageView;
import javafx.scene.image.WritableImage;
import javafx.scene.layout.BorderPane;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;
public class WebCamAppLauncher extends Application {
private class WebCamInfo {
private String webCamName;
private int webCamIndex;
public String getWebCamName() {
return webCamName;
}
public void setWebCamName(String webCamName) {
this.webCamName = webCamName;
}
public int getWebCamIndex() {
return webCamIndex;
}
public void setWebCamIndex(int webCamIndex) {
this.webCamIndex = webCamIndex;
}
@Override
public String toString() {
return webCamName;
}
}
private FlowPane bottomCameraControlPane;
private FlowPane topPane;
private BorderPane root;
private String cameraListPromptText = "Choose Camera";
private ImageView imgWebCamCapturedImage;
private Webcam webCam = null;
private boolean stopCamera = false;
private BufferedImage grabbedImage;
private ObjectProperty<Image> imageProperty = new SimpleObjectProperty<Image>();
private BorderPane webCamPane;
private Button btnCamreaStop;
private Button btnCamreaStart;
private Button btnCameraRecord;
@Override
public void start(Stage primaryStage) {
primaryStage.setTitle("Connecting Camera Device Using Webcam Capture API");
root = new BorderPane();
topPane = new FlowPane();
topPane.setAlignment(Pos.CENTER);
topPane.setHgap(20);
topPane.setOrientation(Orientation.HORIZONTAL);
topPane.setPrefHeight(40);
root.setTop(topPane);
webCamPane = new BorderPane();
webCamPane.setStyle("-fx-background-color: #ccc;");
imgWebCamCapturedImage = new ImageView();
webCamPane.setCenter(imgWebCamCapturedImage);
root.setCenter(webCamPane);
createTopPanel();
bottomCameraControlPane = new FlowPane();
bottomCameraControlPane.setOrientation(Orientation.HORIZONTAL);
bottomCameraControlPane.setAlignment(Pos.CENTER);
bottomCameraControlPane.setHgap(20);
bottomCameraControlPane.setVgap(10);
bottomCameraControlPane.setPrefHeight(40);
bottomCameraControlPane.setDisable(true);
createCameraControls();
root.setBottom(bottomCameraControlPane);
primaryStage.setScene(new Scene(root));
primaryStage.setHeight(700);
primaryStage.setWidth(600);
primaryStage.centerOnScreen();
primaryStage.show();
Platform.runLater(new Runnable() {
@Override
public void run() {
setImageViewSize();
}
});
}
protected void setImageViewSize() {
double height = webCamPane.getHeight();
double width = webCamPane.getWidth();
imgWebCamCapturedImage.setFitHeight(height);
imgWebCamCapturedImage.setFitWidth(width);
imgWebCamCapturedImage.prefHeight(height);
imgWebCamCapturedImage.prefWidth(width);
imgWebCamCapturedImage.setPreserveRatio(true);
}
private void createTopPanel() {
int webCamCounter = 0;
Label lbInfoLabel = new Label("Select Your WebCam Camera");
ObservableList<WebCamInfo> options = FXCollections.observableArrayList();
topPane.getChildren().add(lbInfoLabel);
for (Webcam webcam : Webcam.getWebcams()) {
WebCamInfo webCamInfo = new WebCamInfo();
webCamInfo.setWebCamIndex(webCamCounter);
webCamInfo.setWebCamName(webcam.getName());
options.add(webCamInfo);
webCamCounter++;
}
ComboBox<WebCamInfo> cameraOptions = new ComboBox<WebCamInfo>();
cameraOptions.setItems(options);
cameraOptions.setPromptText(cameraListPromptText);
cameraOptions.getSelectionModel().selectedItemProperty().addListener(new ChangeListener<WebCamInfo>() {
@Override
public void changed(ObservableValue<? extends WebCamInfo> arg0, WebCamInfo arg1, WebCamInfo arg2) {
if (arg2 != null) {
System.out.println("WebCam Index: " + arg2.getWebCamIndex() + ": WebCam Name:" + arg2.getWebCamName());
initializeWebCam(arg2.getWebCamIndex());
}
}
});
topPane.getChildren().add(cameraOptions);
}
protected void initializeWebCam(final int webCamIndex) {
Task<Void> webCamTask = new Task<Void>() {
@Override
protected Void call() throws Exception {
if (webCam != null) {
startWebCamCamera();
}
webCam = Webcam.getWebcams().get(webCamIndex);
webCam.open();
startWebCamStream();
return null;
}
};
Thread webCamThread = new Thread(webCamTask);
webCamThread.setDaemon(true);
webCamThread.start();
bottomCameraControlPane.setDisable(false);
btnCamreaStart.setDisable(true);
}
protected void startWebCamStream() {
stopCamera = false;
Task<Void> task = new Task<Void>() {
@Override
protected Void call() throws Exception {
final AtomicReference<WritableImage> ref = new AtomicReference<>();
BufferedImage img = null;
while (!stopCamera) {
try {
if ((img = webCam.getImage()) != null) {
ref.set(SwingFXUtils.toFXImage(img, ref.get()));
img.flush();
Platform.runLater(new Runnable() {
@Override
public void run() {
imageProperty.set(ref.get());
}
});
}
} catch (Exception e) {
e.printStackTrace();
}
}
return null;
}
};
Thread th = new Thread(task);
th.setDaemon(true);
th.start();
imgWebCamCapturedImage.imageProperty().bind(imageProperty);
}
private void createCameraControls() {
btnCamreaStop = new Button();
btnCamreaStop.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent arg0) {
stopWebCamCamera();
}
});
btnCamreaStop.setText("Stop Camera");
btnCamreaStart = new Button();
btnCamreaStart.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent arg0) {
startWebCamCamera();
}
});
btnCamreaStart.setText("Start Camera");
btnCameraRecord = new Button();
btnCameraRecord.setText("Camera Record");
btnCameraRecord.setOnAction(new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent arg0) {
try {
recordWebCamCamera();
} catch (Throwable e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
});
bottomCameraControlPane.getChildren().add(btnCamreaStart);
bottomCameraControlPane.getChildren().add(btnCamreaStop);
bottomCameraControlPane.getChildren().add(btnCameraRecord);
}
protected void recordWebCamCamera() throws Throwable {
/*RECORD THE VIDEO HERE*/
}
protected void startWebCamCamera() {
stopCamera = false;
startWebCamStream();
btnCamreaStop.setDisable(false);
btnCamreaStart.setDisable(true);
}
protected void stopWebCamCamera() {
stopCamera = true;
btnCamreaStart.setDisable(false);
btnCamreaStop.setDisable(true);
}
public static void main(String[] args) {
launch(args);
}
}