Home | Trees | Indices | Help |
---|
|
1 # -*- coding: utf-8 -*- 2 # Elisa - Home multimedia server 3 # Copyright (C) 2006-2008 Fluendo Embedded S.L. (www.fluendo.com). 4 # All rights reserved. 5 # 6 # This file is available under one of two license agreements. 7 # 8 # This file is licensed under the GPL version 3. 9 # See "LICENSE.GPL" in the root of this distribution including a special 10 # exception to use Elisa with Fluendo's plugins. 11 # 12 # The GPL part of Elisa is also available under a commercial licensing 13 # agreement from Fluendo. 14 # See "LICENSE.Elisa" in the root directory of this distribution package 15 # for details on that license. 16 17 """ 18 MediaFile abstraction support 19 """ 20 21 from elisa.core.utils import classinit 2224 """ 25 This class provides a file-like API to access data at a given URI. 26 27 MediaFiles are created by 28 L{elisa.base_components.media_provider.MediaProvider} 29 objects. They act as proxies to the latter, thus are bound to 30 MediaProviders. 31 32 @ivar descriptor: media descriptor symbolizing the opened media 33 @type descriptor: object 34 """ 35 36 __metaclass__ = classinit.ClassInitMeta 37 __classinit__ = classinit.build_properties 389240 """ 41 42 @param media_provider: the Component which provides media access to the 43 descriptor, hence the media URI 44 @type media_provider: L{elisa.base_components.media_provider.MediaProvider} 45 @param descriptor: media descriptor symbolizing the opened media 46 @type descriptor: object 47 """ 48 self._media_provider = media_provider 49 self._descriptor = descriptor50 55 6062 """ Read some data from my descriptor using my media_provider 63 64 @param size: length of data to retrieve. The media_provider will do 65 its best to fetch that amount of data. size = -1 means 66 retrieving all available data at once 67 @type size: int 68 @returns: string 69 """ 70 return self._media_provider.read(self, size)7173 """ Seek to given offset of my descriptor, via my media_provider 74 75 @param offset: how much to seek in the file 76 @type offset: int 77 @param whence: from where to seek in the file, default=0 means 78 current position 79 @type whence: int 80 @returns: bool 81 """ 82 return self._media_provider.seek(self, offset, whence)83 8688 return self._media_provider._blocking_seek(self, offset, whence)8991 return self._media_provider._blocking_close(self)
Home | Trees | Indices | Help |
---|
Generated by Epydoc 3.0beta1 on Wed Jan 16 19:10:17 2008 | http://epydoc.sourceforge.net |