ST 2019-3:2008 - SMPTE Standard - VC-3 Type Data Stream Mapping over SDTI

This document specifies the mapping of the VC-3 type compressed picture data stream into the SMPTE 305M SDTI payload area. The VC-3 type compressed picture data stream mapping is defined for source coded progressive 1080P picture rates of 25/P and 30/1.001/P, 720P picture rates of 50/P and 60/1.001/P, and for interlaced 1080I picture rates of 50/I and 60/1.001/I. VC-3 compression rates supported with this mapping are limited to the payload capacity of the 270 Mbps SDTI and are listed in Table 4. — For the transmission of compressed picture data coded at source picture rates of 25/P, 50/P and 50/I, the SDTI operates at a frame rate of 25Hz. For the transmission of compressed picture data coded at source picture rates of 30/1.001/P, 60/1.001/P, and 60/1.001/I, the SDTI operates at a frame rate of 30/1.001 Hz.