Does the Roku support H.264 with HIGH profile and level 4.0 ?
I transcoded an mp4 file with Elgato Turbo.264 HD using High profile and level 4.0 and then used ffmpeg to convert it back to MpegTS. The ffmpeg was complaining about a missing option and I added this option: -vbsf h264_mp4toannexb to successfully convert the mp4 file to mpegts.
I'm unable to play the TS files on the Roku. I get all garbage on the screen. Audio is fine. It plays perfectly on my iPAD and Mac OSX laptop.
What best H.264 profile and level does the Roku HD supports?