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• how to install and run phpize

  13 décembre 2016, par Hrishikesh Choudhari

  I have been meaning to install ffmpeg as an extension to my php setup. So before I can install it, I need to phpize it. I installed php5-dev by sudo apt-get install php5-dev But now when I run phpize I get the following error :

  phpize
  
  Cannot find config.m4. 
  
  Make sure that you run '/usr/bin/phpize' in the top level source directory of the module

  The location of my php.ini is /usr/local/zend/etc/php.ini

  From another online resource i tried this

  sudo apt-get install autoconf automake libtool m4

  But all of them are already installed.

  Locate config.m4 didnt return anything.

  Any pointers here how I can get phpize and thus, ffmpeg up and running ?

• FFmpeg similar images filtering into png

  6 juillet 2020, par Udi

  I'm using FFmpeg on Mp4 and Avi videos, trying to output all the frames in configurable frame rate to png files using the following command :

  


  ./ffmpeg -i ~/Downloads/test.mp4 -vf mpdecimate=hi=1536:lo=640:frac=0.5,setpts=N/60/TB,fps=60/60 "/tmp/resultOutpu/(#%04d).png"


  


  test.mp4 is a 10 seconds video of my face using the phone and I expect it to take 10 frames and drop 9 because it is much similar to the first frame. (The video is 1 pose)

  


  The actual results it 10 frames of the actual first frame ! Meaning it actually using mpdecimate but it also creates 9 more frames of the first.

  


  Is there any way I can filter them out ? So my png results will be only frames that not similar to the previous one ?

  


• How to upload object to a bucket in Google Cloud Platform from Python script

  7 juillet 2016, par Bryan

  The goal of this script is to extract audio from a video file using ffmpeg and upload it into a bucket on Google Cloud Platform each time it is called. Eventually I will have to extract audio from a large list of videos, so ideally I would want my script to extract and subsequently upload it into the cloud.

  My confusion is how to use GCP API to upload my object into a bucket. Any advice would be greatly appreciated !

  Link for reference : https://cloud.google.com/storage/docs/json_api/v1/json-api-python-samples#setup-code

  import subprocess
  
  import sys
  
  import re 
  
  
  
  fullVideo = sys.argv[1]
  
  title = re.findall('^([^.]*).*', fullVideo)
  
  title = str(title[0])
  
  subprocess.call('ffmpeg -i ' + fullVideo + ' -vn -ab 128k ' + title + '.flac', shell = True)
  
  
  
  def upload_object(bucket, filename, readers, owners):
  
      service = create_service()
  
  
  
      # This is the request body as specified:
  
      # http://g.co/cloud/storage/docs/json_api/v1/objects/insert#request
  
      body = {
  
          'name': filename,
  
      }
  
  
  
      # If specified, create the access control objects and add them to the
  
      # request body
  
      if readers or owners:
  
          body['acl'] = []
  
  
  
      for r in readers:
  
          body['acl'].append({
  
              'entity': 'user-%s' % r,
  
              'role': 'READER',
  
              'email': r
  
          })
  
      for o in owners:
  
          body['acl'].append({
  
              'entity': 'user-%s' % o,
  
              'role': 'OWNER',
  
              'email': o
  
          })
  
  
  
      # Now insert them into the specified bucket as a media insertion.
  
      # http://g.co/dev/resources/api-libraries/documentation/storage/v1/python/latest/storage_v1.objects.html#insert
  
      with open(filename, 'rb') as f:
  
          req = service.objects().insert(
  
              bucket=bucket, body=body,
  
              # You can also just set media_body=filename, but # for the sake of
  
              # demonstration, pass in the more generic file handle, which could
  
              # very well be a StringIO or similar.
  
              media_body=http.MediaIoBaseUpload(f, 'application/octet-stream'))
  
          resp = req.execute()
  
  
  
      return resp