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• How to check live stream is still alive use "ffprobe" command ?

  17 août 2018, par Yin JianFeng

  I want to schedule a job script to check a live stream is still alive use "ffprobe" command. So that I can change database state for those steam already dead.

  I tried the command :

  ffprobe -v quiet -print_format json -show_streams rtmp://xxxx

  but when the stream is not avaiable, the command will hang.
  I tried add -timeout argument, but still cannot work properly.

• convert mp3 to wav using xuggle getting exception

  24 juin 2013, par Felix

  I am trying to convert mp3 to wav and the code is here :

  String mp3 = "F:\\work\\pic2talk38512.mp3";
  
  String wav = "F:\\work\\pic2talk38512.wav";
  
  TranscodeAudioAndVideo.transcodeTest(mp3, wav);
  
  
  
  public static void transcode(String sourceUrl, String destinationUrl) {
  
      IMediaReader reader = ToolFactory.makeReader(sourceUrl);
  
      reader.addListener(ToolFactory.makeWriter(destinationUrl, reader));
  
  
  
      while (reader.readPacket() == null)
  
              do {
  
              } while (false);
  
  }

  I got this exception :

  java.lang.UnsupportedOperationException: could not guess codec
  
  at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:454)
  
  at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:327)
  
  at com.xuggle.xuggler.IContainerFormat.establishOutputCodecId(IContainerFormat.java:300)
  
  at com.xuggle.mediatool.MediaWriter.addStreamFromContainer(MediaWriter.java:1134)
  
  at com.xuggle.mediatool.MediaWriter.getStream(MediaWriter.java:1039)
  
  at com.xuggle.mediatool.MediaWriter.encodeVideo(MediaWriter.java:742)
  
  at com.xuggle.mediatool.MediaWriter.encodeVideo(MediaWriter.java:783)
  
  at com.xuggle.mediatool.MediaWriter.onVideoPicture(MediaWriter.java:1434)
  
  at com.xuggle.mediatool.AMediaToolMixin.onVideoPicture(AMediaToolMixin.java:166)
  
  at com.xuggle.mediatool.MediaReader.dispatchVideoPicture(MediaReader.java:610)
  
  at com.xuggle.mediatool.MediaReader.decodeVideo(MediaReader.java:519)
  
  at com.xuggle.mediatool.MediaReader.readPacket(MediaReader.java:475)
  
  at com.renren.intl.soundsns.pictalk.utils.TranscodeAudioAndVideo.transcodeTest(TranscodeAudioAndVideo.java:75)
  
  at com.renren.intl.soundsns.pictalk.utils.TranscodeAudioAndVideoTest.convert(TranscodeAudioAndVideoTest.java:12)
  
  at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
  
  at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
  
  at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
  
  at java.lang.reflect.Method.invoke(Method.java:597)
  
  at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
  
  at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
  
  at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
  
  at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
  
  at org.junit.runners.ParentRunner.runLeaf(ParentRunner.java:271)
  
  at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:70)
  
  at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
  
  at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
  
  at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
  
  at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
  
  at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
  
  at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
  
  at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
  
  at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:49)
  
  at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38)
  
  at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467)
  
  at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683)
  
  at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390)
  
  at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197)

  I know that xuggle can figure out the conversion by the extension.But why this time is failed ?

  thanks

  edit :

  previously I can convert mp3 which params(MPEG 22.1KHZ 32kbps) to wav, but If I use the mp3(MPEG 44.1KHZ 62kbps) I got this exception ?

  How this happened ?

• How to run ffmpeg in a scheduled batch file with a file exclusion list ?

  5 juin 2022, par MrZoops

  I have the following batch file created to run as a schedule task. It auto encodes the audio to AAC in my main media folder. Everything is working, but now I need to do 2 more things :

  



  

  1. Delete the original upon completion.

  


  2. Set it so that the next time it runs, it does not try to convert the already converted files.

  


  



  Is that possible ? How would that look ? Is there a way to "disregard" file names with CONVERTED in them ?

  



  for /r "C:\Users\USER\Desktop\TEST" %%a in ("*.mkv") do ffmpeg -i "%%a" -vcodec copy -acodec aac -ac 2 -ab 256K %%~dpnaCONVERTED.mkv