如何在java中使用xugg来读取一个实时的Webstream？ （我可以在ffmpeg中做，只是不要挣扎）

问题描述

所以如果我运行：

  ffmpeg -t 10 -re -irtmp：//170.93.143.150/rtplive / app = rtplive / playpath = e000990f025f0075004d823633235daa swfUrl = http：//www.chart.state.md.us/video/mediaplayer/player.swf pageUrl = http：//www.chart.state.md.us/video/video .asp？feed = e000990f025f0075004d823633235daa stop = 5000 flashver =`LNX 11,2,202,262` live = truetest.flv -report 
  

它给我一个5秒的视频从该webstream的卡通将被放入test.flv。
现在我想在java中使用xuggle做同样的事情，除非我尝试打开这个容器，把错误发送给我，并将x设置为-1：

  public IMediaReader grabStream（IMediaReader reader）throws IOException 
 {
 String rtmp =rtmp：//170.93.143.150/rtplive/; 
 rtmp = rtmp +app = rtplive /; 
 rtmp = rtmp +playpath = e000990f025f0075004d823633235daa; 
 rtmp = rtmp +swfUrl = http：//www.chart.state.md.us/video/mediaplayer/player.swf; 
 rtmp = rtmp +pageUrl = http：//www.chart.state.md.us/video/video.asp？feed = e000990f025f0075004d823633235daa; 
 rtmp = rtmp +flashver =`LNX 11,2,202,262`; 
 rtmp = rtmp +live = true;新新新旗新新新新新旗新新旗新新旗200新新新旗新新旗200新新新新新旗新新旗新新旗新新款： 
 IMediaReader newReader = ToolFactory.makeReader（container）; 
 
 int x = container.open（rtmp，IContainer.Type.READ，null，true，false）; 
 
 if（x< 0）
 {
 IError ie = IError.make（x）; 
 System.out.println（Open error：+ ie.getType（）。toString（））; 
 throw new RuntimeException（failed to open with error+ x）; 
} 
 
 return newReader; 
} 
  

也许最好的方式是将ffmpeg流入一个xuggle容器使用输入流不知何故？或者还有另一种方式可以将Webstream流传输到java？

解决方案

rtmp源字符串应为以下格式

  String rtmpSourceUrl =rtmp：// hostname / appName / streamName; 
  

然后，我建议创建阅读器，如下所示

$ pre> IContainerFormat inFormat = IContainerFormat.make（）;
inFormat.setInputFormat（flv）; //设置输入格式以避免FFMPEG
// probing
IMediaReader reader = ToolFactory.makeReader（rtmpSourceUrl）;
reader.setQueryMetaData（false）;
reader.setBufferedImageTypeToGenerate（-1）;
reader.getContainer（）。setForcedVideoCodec（ID.CODEC_ID_FLV1）;
reader.getContainer（）。open（rtmpSourceUrl，IContainer.Type.READ，inFormat，
true，false）;


这是否解决了您的问题？

So if I run:

ffmpeg -t 10 -re -i "rtmp://170.93.143.150/rtplive/ app=rtplive/ playpath=e000990f025f0075004d823633235daa swfUrl=http://www.chart.state.md.us/video/mediaplayer/player.swf pageUrl=http://www.chart.state.md.us/video/video.asp?feed=e000990f025f0075004d823633235daa stop=5000 flashver=`LNX 11,2,202,262` live=true" test.flv -report

It gives me a 5 second snapsnot of video from that webstream that gets put into test.flv.Now I would like to do the same thing in java using xuggle except everytime I try and open the container it errors out on me and sets x to -1:

 public IMediaReader grabStream(IMediaReader reader) throws IOException
  {
    String rtmp = "rtmp://170.93.143.150/rtplive/";
    rtmp = rtmp + " app=rtplive/";
    rtmp = rtmp + " playpath=e000990f025f0075004d823633235daa";
    rtmp = rtmp + " swfUrl=http://www.chart.state.md.us/video/mediaplayer/player.swf";
    rtmp = rtmp + " pageUrl=http://www.chart.state.md.us/video/video.asp?feed=e000990f025f0075004d823633235daa";
    rtmp = rtmp + " flashver=`LNX 11,2,202,262`";
    rtmp = rtmp + " live=true";

    IContainer container = IContainer.make();
    IMediaReader newReader = ToolFactory.makeReader(container);

    int x = container.open(rtmp, IContainer.Type.READ, null, true, false);

    if (x < 0)
    {
      IError ie = IError.make(x);
      System.out.println("Open error: " + ie.getType().toString());
      throw new RuntimeException("failed to open with error" + x);
    }

    return newReader;
  }

Maybe the best way to do it is to stream in ffmpeg to a xuggle container using inputstream somehow? Or maybe there is another way to stream in a webstream to java?

解决方案

The rtmp source string should be in the following format

String rtmpSourceUrl = "rtmp://hostname/appName/streamName";

Then I would recommend creating the reader like the following

IContainerFormat inFormat = IContainerFormat.make();
inFormat.setInputFormat("flv"); // set the input format to avoid FFMPEG
                                    // probing
IMediaReader reader = ToolFactory.makeReader(rtmpSourceUrl);
reader.setQueryMetaData(false);
reader.setBufferedImageTypeToGenerate(-1);
reader.getContainer().setForcedVideoCodec(ID.CODEC_ID_FLV1);
reader.getContainer().open(rtmpSourceUrl , IContainer.Type.READ, inFormat,
            true, false);

Does this solve your problem?

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