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• Merge remote-tracking branch ’cus/stable’

  10 février 2015, par Michael Niedermayer

  Merge remote-tracking branch ’cus/stable’
  * cus/stable :
  
    ffplay : factorize thread starting and stopping code into decoder
  
    ffplay : make eof part of videostate and signal it when opening a stream
  
    ffplay : update frame timer based on last updated clock time when toggling pause
  Merged-by : Michael Niedermayer <michaelni@gmx.at>
  

  • [DH] ffplay.c

• Transcode video using celery and ffmpeg in django

  28 octobre 2015, par Robin

  I would like to transcode user uploaded videos using celery. I think first I should upload the video, and spawn a celery task for transcoding.

  Maybe something like this in the tasks.py :

  subprocess.call('ffmpeg -i path/.../original path/.../output')

  Just completed First steps with celery, so confused how to do so in the views.py and tasks.py. Also is it a good solution ? I would really appreciate your help and advice. Thank you.

  models.py :

  class Video(models.Model):
  
      user = models.ForeignKey(User)
  
      title = models.CharField(max_length=100)
  
      original = models.FileField(upload_to=get_upload_file_name)
  
      mp4_480 = models.FileField(upload_to=get_upload_file_name, blank=True, null=True)
  
      mp4_720 = models.FileField(upload_to=get_upload_file_name, blank=True, null=True)
  
      privacy = models.CharField(max_length=1,choices=PRIVACY, default='F')
  
      pub_date = models.DateTimeField(auto_now_add=True, auto_now=False)

  my incomplete views.py :

  @login_required
  
  def upload_video(request):
  
      if request.method == 'POST':
  
          form = VideoForm(request.POST, request.FILES)
  
          if form.is_valid():
  
              if form.cleaned_data:
  
                  user = request.user
  
                  #
  
                  #
  
                  # No IDEA WHAT TO DO NEXT
  
                  #
  
                  #
  
                  return HttpResponseRedirect('/')
  
  
  
      else:
  
          form = VideoForm()
  
          return render(request, 'upload_video.html', {
  
              'form':form
  
              })

• Processing files and then re-uploading with fog and carrierwave fails on production

  2 mars 2015, par Laurie

  So I’m trying to get use carrierwave and fog to upload a file to my server, processing that file using ffmpeg to cut it into multiple small files, then upload those to s3.

  This works locally (no fog, just file storage), but breaks on production with this error :

  NoMethodError: undefined method 'to_file' for #CarrierWave::Storage::Fog::File:0x0000000639a458>

  And this trace :

  /var/deploy/webapp/web_head/shared/bundle/ruby/2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb 259:in `store'
  
  …gems/carrierwave-0.10.0/lib/carrierwave/storage/fog.rb:  80:in `store!'
  
  …s/carrierwave-0.10.0/lib/carrierwave/uploader/store.rb:  59:in `block in store!'
  
  …rrierwave-0.10.0/lib/carrierwave/uploader/callbacks.rb:  17:in `with_callbacks'
  
  …s/carrierwave-0.10.0/lib/carrierwave/uploader/store.rb:  58:in `store!'
  
  …2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/mount.rb: 375:in `store!'
  
  …2.2.0/gems/carrierwave-0.10.0/lib/carrierwave/mount.rb: 207:in `store_audio!'
  
  …/20150227144932/app/controllers/podcasts_controller.rb:  60:in `update'
  
  …2.0/gems/actionview-4.2.0/lib/action_view/rendering.rb:  30:in `process'
  
  …_language-2.0.5/lib/http_accept_language/middleware.rb:  14:in `call'
  
  …red/bundle/ruby/2.2.0/gems/rack-1.6.0/lib/rack/etag.rb:  24:in `call'
  
  …/ruby/2.2.0/gems/rack-1.6.0/lib/rack/conditionalget.rb:  38:in `call'
  
  …red/bundle/ruby/2.2.0/gems/rack-1.6.0/lib/rack/head.rb:  13:in `call'
  
  …/2.2.0/gems/rack-1.6.0/lib/rack/session/abstract/id.rb: 225:in `context'
  
  …/2.2.0/gems/rack-1.6.0/lib/rack/session/abstract/id.rb: 220:in `call'

  So, I have two uploaders. The uploader for the small chopped up audio files just sets the storage to fog, that’s it.

  After uploading the big audio file I run this processing function in the uploader (though the error doesn’t seem to come from here) :

  def split
  
    directory = File.dirname(current_path)
  
    tmpfile = File.join(directory,'tmpfile.mp3')
  
    File.rename(current_path,tmpfile)
  
    File.chmod(0644,tmpfile)
  
  
  
    sound = FFMPEG::Movie.new(tmpfile)
  
    @model.length = Mp3Info.open(tmpfile).length.round
  
  
  
  
  
    i=0
  
    number_of_lines= @model.ordered_lines.length
  
    lines = @model.ordered_lines
  
    while icode>

  Any ideas ?