audiovideocapture.java

jmf的入门级小程序

import javax.media.*; 
import javax.media.format.*; 
import java.util.*; 
import java.awt.*; 
 
public class AudioVideoCapture { 
   AudioFormat audioformat; 
   VideoFormat videoformat; 
   MediaLocator audiolocator,videolocator; 
   CaptureDeviceInfo audiodi,videodi; 
 
  public AudioVideoCapture() { 
      //确定音频格式 
      double ratesample=48000.0; 
      int bitspersample=16; 
      int channel=2; 
      String audio_format=AudioFormat.MPEG_RTP; 
      audioformat=new AudioFormat(audio_format,ratesample,bitspersample,channel); 
      //确定视频格式 
      Dimension size=new Dimension(250,140); 
      videoformat=new RGBFormat(size,size.width*size.height*3,Format.byteArray, 
       Format.NOT_SPECIFIED,24,3,2,1,3,size.width*3,RGBFormat.TRUE,Format.NOT_SPECIFIED); 
      //音频捕获 
      Vector audiodevicelist=CaptureDeviceManager.getDeviceList(new AudioFormat(AudioFormat.LINEAR)); 
      if(audiodevicelist.size()>0){ 
          audiodi=(CaptureDeviceInfo)audiodevicelist.firstElement(); 
          audiolocator=audiodi.getLocator(); 
      } 
      else{ 
          System.err.println("找不到合适的音频捕获设备"); 
          audiolocator=null; 
      } 
      //视频捕获 
      Vector videodevicelist=CaptureDeviceManager.getDeviceList(new VideoFormat(VideoFormat.RGB)); 
      if(videodevicelist.size()>0){ 
         videodi=(CaptureDeviceInfo)videodevicelist.firstElement(); 
         videolocator=videodi.getLocator(); 
     } 
     else{ 
         System.err.println("找不到合适的视频捕获设备"); 
         videolocator=null; 
     } 
 
 
    } 
  public static void main(String []args){
	  new AudioVideoCapture();
  }
}