isin't h264 streaming supported?
 

have try attached streaming link for bbc.
rtsp://212.58.251.101:554/bbc-rbs/rmlive-3gp/rtpencoder/bbc1_h264.sdp?service_id=bbc_one_london

it works but if you try to open it from .sdp file provided it doesn' you get media type not supported error