MP4/H264 with SEI (Supplementary Enhancement Information)

Does Roku's version of the H.264 codec include or have access to the SEI for S3D? If no, is there any ballpark timeframe for implementation so a 3D-capable tv can autodetect 3D content when the stream is played? Just it's annoying to have to set the tv manually to do side-by-side every time you play a 3D video.