There are really two standards: a "contribution" standard which is generally at 50 Mbs but is then scaled to a lower bit rate for broadcast, and that depends on how each station has divided its 19.38 Mbps. The 6 Mhz RF channel handles 19.38 Mbps but this is usually divided up between a main HD channel and several SD subchannels as low as, say, 3 Mbps. we are still using MPEG2 for over-the-air video. So far I've been working in Limited range but plan to experiment with full range to see how ffmpeg behaves. The camcorder puts out levels from 16 - 255. So we are making a round trip YUV -> RGB -> YUV. I then convert it to RGB24 720p because it is MUCH easier to control the individual R,G,B channels in the RGB domain. The camcorder video is 4:2:0 YUV at 1080p. The ultimate objective is to make camcorder video EBU r 103 compliant.
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