
File Formats and Log Encoding 535
Interfaces and Data Transport Streams
Serial digital interface (SDI) and high deni-
tion mechanical interface (HDMI) are digital
video interfaces used for transmission of digital
video signals including embedded audio and time
code over hard wired electronic (and sometimes
ber optic) connections. A transport streams
species a container format encapsulating pack-
etized elementary streams with error correction
and a synchronization pattern for maintaining
transmission integrity when the channel carry-
ing the stream is degraded. Program streams are
designed for reasonably reliable media, such as
DVDs while ...