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• Send MP3 audio extracted from m3u8 stream to IBM Watson Speech To Text

  20 novembre 2018, par Link69

  I’m extracting audio in MP3 format from a M3U8 live url and the final goal is to send the live audio stream to IBM Watson Speech To Text. The m3u8 is obtained by calling an external script via a Process. Then I use FFMPEG script to get the audio in stdout. It works if I save the audio in a file but I don’t want to save the extracted audio, I need to send the datas directly to the STT service. So far I proceeded like this :

  SpeechToTextService speechToTextService = new SpeechToTextService(sttUsername, sttPassword);
  
  string m3u8Url = "https://something.m3u8";
  
  char[] buffer = new char[48000];
  
  Process ffmpeg = new ProcessHelper(@"ffmpeg\ffmpeg.exe", $"-v 0 -i {m3u8Url} -acodec mp3 -ac 2 -ar 48000 -f mp3 -");
  
  
  
  ffmpeg.Start();
  
  int count;
  
  while ((count = ffmpeg.StandardOutput.Read(buffer, 0, 48000)) > 0)
  
  {
  
      ffmpeg.StandardOutput.Read(buffer, 0, 48000);
  
      var answer = speechToTextService.RecognizeSessionless(
  
          audio: buffer.Select(c => (byte)c).ToArray(),
  
          contentType: "audio/mpeg",
  
          smartFormatting: true,
  
          speakerLabels: false,
  
          model: "en-US_BroadbandModel"
  
      );
  
      // Get answer.ResponseJson, deserializing, clean buffer, etc...
  
  }

  When requesting the transcribed audio I’m getting this error :

  An unhandled exception of type 'System.AggregateException' occurred in IBM.WatsonDeveloperCloud.SpeechToText.v1.dll: 'One or more errors occurred. (The API query failed with status code BadRequest: Bad Request | x-global-transaction-id: bd6cd203720a70d83b9a03451fe28973 | X-DP-Watson-Tran-ID: bd6cd203720a70d83b9a03451fe28973)'
  
   Inner exceptions found, see $exception in variables window for more details.
  
   Innermost exception     IBM.WatsonDeveloperCloud.Http.Exceptions.ServiceResponseException : The API query failed with status code BadRequest: Bad Request | x-global-transaction-id: bd6cd203720a70d83b9a03451fe28973 | X-DP-Watson-Tran-ID: bd6cd203720a70d83b9a03451fe28973
  
     at IBM.WatsonDeveloperCloud.Http.Filters.ErrorFilter.OnResponse(IResponse response, HttpResponseMessage responseMessage)
  
     at IBM.WatsonDeveloperCloud.Http.Request.<getresponse>d__30.MoveNext()
  
     at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
  
     at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
  
     at IBM.WatsonDeveloperCloud.Http.Request.<asmessage>d__23.MoveNext()
  
     at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
  
     at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
  
     at IBM.WatsonDeveloperCloud.Http.Request.<as>d__24`1.MoveNext()
  
  </as></asmessage></getresponse>

  ProcessHelper is just for convenience :

  class ProcessHelper : Process
  
  {
  
      private string command;
  
      private string arguments;
  
      public ProcessHelper(string command, string arguments, bool redirectStandardOutput = true)
  
      {
  
          this.command = command;
  
          this.arguments = arguments;
  
          StartInfo = new ProcessStartInfo()
  
          {
  
              FileName = this.command,
  
              Arguments = this.arguments,
  
              UseShellExecute = false,
  
              RedirectStandardOutput = redirectStandardOutput,
  
              CreateNoWindow = true
  
          };
  
      }
  
  }

  Pretty sure I’m doing it wrong, I’d love someone to shine a light on this. Thanks.

• Cocaine::CommandNotFoundError

  6 décembre 2018, par Haseeb Ahmad

  Using paperclip-ffmpeg for video uploading.

  When I upload it gives an error

  Cocaine::CommandNotFoundError (Cocaine::CommandNotFoundError):
  
  app/controllers/ads_controller.rb:27:in `create
  
  
  
  Cannot render console with content type multipart/form-dataAllowed content types: [#, #, #]

  My model is

  has_attached_file :videod, :styles => { 
  
    :medium => { :geometry => "640x480", :format => 'flv' },
  
    :thumb => { :geometry => "100x100#", :format => 'jpg', :time => 10 }
  
  }, :processors => [:ffmpeg]
  
  validates_attachment_size :videod, :less_than => 100.megabytes
  
  validates_attachment_presence :videod
  
  validates_attachment_content_type :videod, :content_type => /\Avideo\/.*\Z/

  My Gemfile is

  gem "cocaine"
  
  gem 'paperclip-ffmpeg'

• Cannot find installation of real FFmpeg (which comes with ffprobe)

  29 mars 2023, par Asm Goni

  I was trying to fit a generator into a model and I got this error : 
AssertionError: Cannot find installation of real FFmpeg (which comes with ffprobe).

  



  I have looked over many of the solutions on GitHub and other questions on Stack Overflow but none of them worked for me.

  



  Here is one of the commands I ran :

  



  sudo add-apt-repository ppa:mc3man/trusty-media  
sudo apt-get update  
sudo apt-get install ffmpeg  
sudo apt-get install frei0r-plugins  


  



  pip list also indicates the presence of ffmpeg-1.4

  



  In addition, I tried force reinstalling and updating ffmpeg just in case any dependencies were not installed properly.

  



  I also set the skvideo's path for ffmpeg manually :

  



  skvideo.setFFmpegPath('/usr/local/lib/python3.6/dist-packages/ffmpeg/')


  



  This returns : /usr/local/lib/python3.6/dist-packages/skvideo/__init__.py:306: UserWarning: ffmpeg/ffprobe not found in path: /usr/local/lib/python3.6/dist-packages/ffmpeg/
  warnings.warn("ffmpeg/ffprobe not found in path: " + str(path), UserWarning)

  



  By the way, when I try installing, it also returns this error, I don't know what to do about this :

  



  Get:127 http://archive.ubuntu.com/ubuntu bionic/main amd64 vdpau-driver-all amd64 1.1.1-3ubuntu1 [4,674 B]
Fetched 60.4 MB in 7s (8,769 kB/s)
E: Failed to fetch http://security.ubuntu.com/ubuntu/pool/main/w/wavpack/libwavpack1_5.1.0-2ubuntu1.1_amd64.deb  404  Not Found [IP: 91.189.88.149 80]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?


  



  I ran apt-get update --fix-missing and that didn't make anything better.

  



  Is there a solution to this ?