从网络摄像头录制音频和视频java

这是一个使用jxcapture API录制音频和视频的程序。运行时出错。有人能帮我弄清楚这个问题吗？从网络摄像头录制音频和视频java

import com.teamdev.jxcapture.Codec; 
    import com.teamdev.jxcapture.EncodingParameters; 
    import com.teamdev.jxcapture.VideoCapture; 
    import com.teamdev.jxcapture.audio.AudioCodec; 
    import com.teamdev.jxcapture.audio.AudioEncodingParameters; 
    import com.teamdev.jxcapture.audio.AudioSource; 
    import com.teamdev.jxcapture.video.VideoFormat; 
    import com.teamdev.jxcapture.video.VideoSource; 

    import java.io.File; 
    import java.util.List; 


public class CaptureVideoFromWebCameraWithAudio { 

public static void main(String[] args) throws Exception { 
    VideoCapture videoCapture = VideoCapture.create(VideoFormat.MP4); 

    List<VideoSource> availableVideoSources = VideoSource.getAvailable(); 
    System.out.println("availableVideoSources = " + availableVideoSources); 

    if (availableVideoSources.isEmpty()) { 
     throw new IllegalStateException("No external video sources available"); 
    } 

    VideoSource webCamera = availableVideoSources.get(0); 
    System.out.println("webCamera = " + webCamera); 

    videoCapture.setVideoSource(webCamera); 

    List<Codec> videoCodecs = videoCapture.getVideoCodecs(); 
    Codec videoCodec = videoCodecs.get(2); 
    System.out.println("videoCodec = " + videoCodec); 

    EncodingParameters encodingParameters = new EncodingParameters(new File("WebCamera.MP4")); 
    encodingParameters.setBitrate(500000); 
    encodingParameters.setFramerate(10); 
    encodingParameters.setKeyFrameInterval(1); 
    encodingParameters.setCodec(videoCodec); 

    System.out.println("Available audio recording sources:"); 
    List<AudioSource> audioSources = AudioSource.getAvailable(); 
    for (AudioSource audioSource : audioSources) { 
     System.out.println("audioSource = " + audioSource); 
    } 
    if (audioSources.isEmpty()) { 
     System.err.println("No audio sources available"); 
    } else { 
     AudioSource audioSource = audioSources.get(0); 
     System.out.println("Selected audio source = " + audioSource); 
     videoCapture.setAudioSource(audioSource); 

     List<AudioCodec> audioCodecs = videoCapture.getAudioCodecs(); 
     if (audioSources.isEmpty()) { 
      System.err.println("No audio codecs available"); 
     } else { 
      System.out.println("Available audio codecs:"); 
      for (AudioCodec audioCodec : audioCodecs) { 
       System.out.println("audioCodec = " + audioCodec); 
      } 

      // Enable and configure audio encoding 
      AudioEncodingParameters audioEncoding = new AudioEncodingParameters(); 

      AudioCodec audioCodec = audioCodecs.get(0); 
      System.out.println("Selected audio codec = " + audioCodec); 
      audioEncoding.setCodec(audioCodec); 

      encodingParameters.setAudioEncoding(audioEncoding); 
     } 
    } 
    System.out.println("encodingParameters = " + encodingParameters); 

    videoCapture.start(encodingParameters); 
    System.out.println("Recording started. Press 'Enter' to pause."); 
    System.in.read(); 
    videoCapture.pause(); 
    System.out.println("Recording started. Press 'Enter' to resume."); 
    System.in.read(); 
    videoCapture.start(); 
    System.out.println("Recording started. Press 'Enter' to stop."); 
    System.in.read(); 
    videoCapture.stop(); 
    System.out.println("Done."); 
    } 
    }

错误

Run: 
Exception in thread "main" java.lang.NoClassDefFoundError:org/slf4j/LoggerFactory 
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory 
Java Result: 1

来源

2015-09-22 Sus Hill

当你问这个问题在很久以前，你可以添加以下maven的依赖到项目中：

<dependency> 
    <groupId>org.slf4j</groupId> 
    <artifactId>slf4j-api</artifactId> 
    <version>1.7.25</version> 
</dependency>

如果你不使用Maven的时候，得到从这里的罐子：https://www.slf4j.org/download.html

来源

2017-10-22 13:51:57 angryip

它也可能是有用的添加一个slf4j实现太（如简单或logback）。 – rkosegi

从网络摄像头录制音频和视频java

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