decoder, to "avctx".

See the thread:
Subject: [FFmpeg-devel] [PATCH] enc is not a good name for a decoder context
Date: Mon, 28 Dec 2009 22:56:25 +0100


git-svn-id: file:///var/local/repositories/ffmpeg/trunk@21855 9553f0bf-9b14-0410-a0b8-cfaf0461ba5b