H.264 Profiles in flash player

Hi,

     I am working on video conferencing tool in which I am using H264 video codec for video streaming.Profile available in Flash Player are MAIN and BASELINE.

But number of profiles available with H264 are Main,Baseline,High1,High2 etc.reference : http://en.wikipedia.org/wiki/H.264/MPEG-4_AVC .

I want to know why only two h264 profles available in flash player?

Regards