Porting video to GStreamer 1.0
[mediagoblin.git] / mediagoblin / media_types / tools.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 import logging
17
18 from mediagoblin import mg_globals
19
20 import gi
21 gi.require_version('Gst', '1.0')
22 from gi.repository import GObject, Gst, GstPbutils, GLib
23 Gst.init(None)
24
25 _log = logging.getLogger(__name__)
26
27
28 def media_type_warning():
29 if mg_globals.app_config.get('media_types'):
30 _log.warning('Media_types have been converted to plugins. Old'
31 ' media_types will no longer work. Please convert them'
32 ' to plugins to continue using them.')
33
34
35 def discover(src):
36 '''
37 Discover properties about a media file
38 '''
39 _log.info('Discovering {0}...'.format(src))
40 uri = 'file://{0}'.format(src)
41 discoverer = GstPbutils.Discoverer.new(60 * Gst.SECOND)
42 try:
43 info = discoverer.discover_uri(uri)
44 except GLib.GError as e:
45 _log.warning(u'Exception: {0}'.format(e))
46 info = None
47 _log.info('Done')
48 return info