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• Running multiple services in a Docker container

  27 octobre 2015, par andrea-f

  I created a Docker image with Ubuntu 14.04 and compiled FFMPEG to run the streaming of a video asset to a DASH endpoint. On the same image I can run the media analysis script which basically use FFMPEG and other tools to analyse a video asset. Now I want to put a Django app so that assets can be both loaded in the streaming pipeline and run through the media analysis. What would you suggest is the best approach ? Have 2 Docker images – one with compiled FFMPEG and the streaming pipeline and another one with django, and then share the code between the two ? Or just keep 1 docker image and run both the FFMPEG streaming pipeline and media analysis and Django from there ?

  I am open to suggestions…

  Possible duplicate of http://serverfault.com/questions/706736/sharing-code-base-between-docker-containers

• Makefile : Delete more created files when running "make distclean".

  11 mars 2020, par Carl Eugen Hoyos

  Makefile : Delete more created files when running "make distclean".
  

  • [DH] Makefile

• Google Speech API "Sample rate in request does not match FLAC header"

  13 février 2017, par kjdion84

  I’m trying to convert an mp4 video clip into a FLAC audio file and then have google speech spit out the words from the video so that I can detect if specific words were said.

  I have everything working except that I am getting an error from the Speech API :

  {
  
    "error": {
  
      "code": 400,
  
      "message": "Sample rate in request does not match FLAC header.",
  
      "status": "INVALID_ARGUMENT"
  
    }
  
  }

  I am using FFMPEG in order to convert the mp4 into a FLAC file. I am specifying that the FLAC file be 16 bits in the command, but when I right click on the FLAC file Windows is telling me it is 302kbps.

  Here is my PHP code :

  // convert mp4 video to 16 bit flac audio file
  
  $cmd = 'C:/wamp/www/ffmpeg/bin/ffmpeg.exe -i C:/wamp/www/test.mp4 -c:a flac -sample_fmt s16 C:/wamp/www/test.flac';
  
  exec($cmd, $output);
  
  
  
  // convert flac to text so we can detect if certain words were said
  
  $data = array(
  
      "config" => array(
  
          "encoding" => "FLAC",
  
          "sampleRate" => 16000,
  
          "languageCode" => "en-US"
  
      ),
  
      "audio" => array(
  
          "content" => base64_encode(file_get_contents("test.flac")),
  
      )
  
  );
  
  
  
  $json_data = json_encode($data);
  
  
  
  $ch = curl_init();
  
  curl_setopt($ch, CURLOPT_URL, 'https://speech.googleapis.com/v1beta1/speech:syncrecognize?key=MY_API_KEY');
  
  curl_setopt($ch, CURLOPT_HTTPHEADER, array("Content-Type: application/json"));
  
  curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
  
  curl_setopt($ch, CURLOPT_POST, true);
  
  curl_setopt($ch, CURLOPT_POSTFIELDS, $json_data);
  
  curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
  
  
  
  $result = curl_exec($ch);