mediagoblin/media_types/video/util.py

   1 # GNU MediaGoblin -- federated, autonomous media hosting
   2 # Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
   3 #
   4 # This program is free software: you can redistribute it and/or modify
   5 # it under the terms of the GNU Affero General Public License as published by
   6 # the Free Software Foundation, either version 3 of the License, or
   7 # (at your option) any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU Affero General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU Affero General Public License
  15 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17 import logging
  18
  19 from mediagoblin import mg_globals as mgg
  20
  21 _log = logging.getLogger(__name__)
  22
  23
  24 def skip_transcode(metadata, size):
  25     '''
  26     Checks video metadata against configuration values for skip_transcode.
  27
  28     Returns True if the video matches the requirements in the configuration.
  29     '''
  30     config = mgg.global_config['media_type:mediagoblin.media_types.video']\
  31             ['skip_transcode']
  32
  33     medium_config = mgg.global_config['media:medium']
  34
  35     _log.debug('skip_transcode config: {0}'.format(config))
  36
  37     if config['mime_types'] and metadata.get('mimetype'):
  38         if not metadata['mimetype'] in config['mime_types']:
  39             return False
  40
  41     if config['container_formats'] and metadata['tags'].get('audio-codec'):
  42         if not metadata['tags']['container-format'] in config['container_formats']:
  43             return False
  44
  45     if config['video_codecs'] and metadata['tags'].get('audio-codec'):
  46         if not metadata['tags']['video-codec'] in config['video_codecs']:
  47             return False
  48
  49     if config['audio_codecs'] and metadata['tags'].get('audio-codec'):
  50         if not metadata['tags']['audio-codec'] in config['audio_codecs']:
  51             return False
  52
  53     if config['dimensions_match']:
  54         if not metadata['videoheight'] <= size[1]:
  55             return False
  56         if not metadata['videowidth'] <= size[0]:
  57             return False
  58
  59     return True