This standard defines a family of progressive image sample structures for the representation of stationary or moving two-dimensional images sampled temporally at a constant frame rate and having an image format (sample structure ) of 3840 x 2160 or 7680 x 4320 which has a hierarchical relationship with 1920 x 1080 and an aspect ratio of 16:9, called ultra high definition television (UHDTV).
More SMPTE standard pdf
SMPTE ST 2110-21:2017
Professional Media Over Managed IP Networks: Traffic Shaping and Delivery Timing for Video
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SMPTE ST 425-1:2017
Source Image Format and Ancillary Data Mapping for the 3 Gb/s Serial Interface
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