add simulcasting support for video streaming app

c/c++/VC++ expert for 2 days task to make some updates to h.264 and AAC/GSM video encoding and streaming client server and viewer application similar to f#lash m#edia e#ncoder/ W#owza/ f#lash media player (remove # to read correctly) (but not based on it...our application is based on d#irectshow, f#fmpeg, x2#64, l#ibmatroska, l#ibavcodec, l#ive555 and few other similar libraries). Existing qualities: - Supports rtsp, http-h264 and http-webm streaming. - Supports professional camera through video capture cards/ devices like ezcap dc60. - Great a/v in sync quality for small as well as large video resolutions. - Live video Delay is