Serial Data Transport Interface is a way of transmitting data packets over a
Serial Digital Interface datastream. This means that standard SDI infrastructure can be used.Developed to address the needs of the growing number of compressed video standards (
DV,
DVCPRO,
BetaSX,
MPEG2) it allows lossless transfer of data to other devices which have the same codec, for example DV to DV or SX to SX.Using a standard
SDI transport, the extra data is placed within normal active video, between Start of Active Video (SAV), and End of Active Video (EAV). This gives 1440 10bit words of data at 270Mb/s (1920 words in the 8bit 360Mb/s standard).
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