Question

我想使用Windows7下的vlcj库从网络摄像机捕获音频。视频捕获效果很好，但是我无法一起捕获音频。在Unix下，我可以使用Alsa接口，但是在Windows下必须使用。

frame.setVisible(true); 

    File dir = new File(System.getProperty("user.home"), "Videos"); 
    dir.mkdirs(); 

    DateFormat df = new SimpleDateFormat("yyyyMMdd-HHmmss"); 
    String fileName = dir.getAbsolutePath() + "/Capture-" + df.format(new Date()) + ".mpg"; 

    /*
     *  Tweak the options depending on your encoding requirements and audio 
     *  capture device (ALSA is not likely to work on Windows of course) 
     */
    String[] options = {":sout=#transcode{vcodec=mp2v," +
                                         "vb=4096," +
                                         "scale=1," +
                                         "acodec=mpga," +
                                         "ab=128," +
                                         "channels=2," +
                                         "samplerate=44100}" +
                        ":duplicate{dst=file{dst=" + fileName + "}, " +
                                   "dst=display, " +
                                   "select=noaudio"     /* ":input-slave=alsa://hw:0,0" */
    };

    mediaPlayer.playMedia(mrl, options);

但是我必须在Windows下的输入从属中设置

"select=????"     
":input-slave=???"

如果删除最后一个参数：select = noaudio，我会出错-主输入错误：调用了ES_OUT_RESET_PCR

Windows 7 Java vlcj捕获视频和音频

0 个答案: