Source Code for Module MediaInfo

 1  #    This file is part of Subtle 
 2  # 
 3  #    This program is free software: you can redistribute it and/or modify 
 4  #    it under the terms of the GNU General Public License as published by 
 5  #    the Free Software Foundation, either version 3 of the License, or 
 6  #    (at your option) any later version. 
 7  # 
 8  #    This program is distributed in the hope that it will be useful, 
 9  #    but WITHOUT ANY WARRANTY; without even the implied warranty of 
10  #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the 
11  #    GNU General Public License for more details. 
12  # 
13  #    You should have received a copy of the GNU General Public License 
14  #    along with this program.  If not, see <http://www.gnu.org/licenses/>. 
15   
16  import os 
17  import pygtk 
18  pygtk.require('2.0') 
19  import gobject 
20  gobject.threads_init() 
21  import pygst 
22  pygst.require('0.10') 
23  import gst 
24  from gst.extend import discoverer 
25   
26 -class Media: 
27      has_audio = None 
28      has_video = None  
29      framerate = None 
30      sourceURI = None 
31      MIME = None 
32      videoLengthNS = None 
33      videoLengthS = None 
34      videoCaps = None 
35      videoWidth = None 
36      videoHeight = None 
37   
38 -class MediaInfo: 
39   
40 -    def __init__(self, file, uri): 
41          self.media = Media() 
42          self.media.source = file 
43          self.media.sourceURI = uri 
44          self.discover(file) 
45          self.notDone = True 
46   
47 -    def discover(self,path): 
48          d = discoverer.Discoverer(path) 
49          d.connect('discovered',self.cb_discover) 
50          d.discover() 
51   
52 -    def cb_discover(self, d, ismedia): 
53          if ismedia: 
54              self.media.MIME = d.mimetype 
55              if d.is_video: 
56                  self.media.has_video = True 
57                  self.media.framerate = float(d.videorate.num) \ 
58                                         / float(d.videorate.denom) 
59                  self.media.videoLengthNS = d.videolength 
60                  self.media.videoLengthS = float(d.videolength) \ 
61                                            / float(gst.MSECOND)/1000.0 
62                  self.media.videoCaps = d.videocaps 
63                  self.media.videoHeight = d.videoheight 
64                  self.media.videoWidth = d.videowidth 
65              if d.is_audio: 
66                  self.media.has_audio = True 
67          self.notDone = False 
68   
69 -    def poll(self): 
70          return self.notDone 
71   
72 -    def getMedia(self): 
73          return self.media 
74