Fixed decoding of last frames in video for non-threaded decoder.

git-svn-id: https://www.libavg.de/svn/trunk/libavg@9358 44470bb9-56e9-0310-a0f8-c586564d3dc6
Removed unused media.

git-svn-id: https://www.libavg.de/svn/trunk/libavg@9359 44470bb9-56e9-0310-a0f8-c586564d3dc6