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• mplayer or ffmpeg to display video that is beeing pushed to the player ?

  18 décembre 2020, par Sebastian Heyn

  I am planning an application, where an outside video camera should be displayed using mplayer (or any other lightweight video player).

  


  However, instead of connecting the mplayer to the camera server (ffmpeg or something), I want the camera to push the video to the player.

  


  The camera will be on an unstable network, and it will be natted so I cannot access without using a VPN or ssh tunnel. Those tunnels will consume CPU power, bandwidth and connection establish time.

  


  Ideally, the last received frame will be displayed, until the next frame is received, without closing the window.

  


  Does anyone know a way to achieve this using existing software ? BTW : The camera will be connected to a raspberry or simillar.

  


• releases doc formating

  13 février 2013, par jonrohan

  m docs/releases.md
  

  releases doc formating

• How do I get duration of an In Memory Video in Python / Django ?

  21 novembre 2019, par Lucas Tonon

  So I was successfully using the following code to get the duration of a saved video in Django.

  def get_video_length(file_path):
  
  command = [
  
      'ffprobe',
  
      '-v',
  
      'error',
  
      '-show_entries',
  
      'format=duration',
  
      '-of',
  
      'default=noprint_wrappers=1:nokey=1',
  
      file_path
  
    ]
  
  
  
  try:
  
      output = check_output( command, stderr=STDOUT ).decode()
  
  except CalledProcessError as e:
  
      output = e.output.decode()
  
  
  
  return output

  But now I need to get the duration of an uploaded file before saving it.
  I have a serializer with a FileField and on validate method I should check the video duration.
  For instance :

  class VideoSerializer(serializers.Serializer):
  
  video = serializers.FileField(required=True, validators=[validate_media_extension, validate_video_duration])

  Then on validate_video_duration I needed to call some method like get_video_length, but I need an alternative to get the duration from the video in memory. The object that I have is an instance of InMemoryUploadedFile (https://docs.djangoproject.com/en/2.2/_modules/django/core/files/uploadedfile/)