evolution 5000 E5780 and E5782 Encoder
20
NOTES
1. Requires up to 3 Mbit/s of video bit-rate to carry this additional
information.
2. 3:2 pulldown cannot be used when using this option.
VBI Options (625 lines, 25 Hz) – in SD the Encoder can extract a
maximum of eight VBI lines per field on the SD inputs. However this
limit does not apply to Teletext. The possible VBI lines are 6 – 23 and
318 – 335.
In SD the possible VBI types are; Vertical Interval Time Code (VITC),
Video Index, Teletext System B, Inverted Teletext, Wide Screen
Signalling, and Video Programming System (VPS).
In HD Teletext can be extracted from the SD inputs and put into the
stream on its own PID.
!
Teletext - to enable the processing of Teletext select the following
options:
Teletext All Lines – set to On to enable Teletext System B
extraction from all VBI lines.
Teletext PID – assign the PID to be used to carry the extracted
Teletext data.
VBI Line – select individual VBI lines to either turn Teletext
extraction off for that line, or to change the VBI type.
!
Other VBI types (SD only) - to enable the processing of VBI other
than Teletext select the following options:
VBI on PID – set to On to enable the extracted VBI data to be
carried on a separate PID.
VBI PID - assign the PID to be used to carry the VBI data.
VPS (Line 16) – set to On if VPS is to be extracted from
line 16.
WSS (line 23) – set to the appropriate WSS type, if WSS is to
be extracted from line 23. The WSS types are ETSI 300 294, or
WSS-AFD.
Auto Detect VITC – set to On if the Encoder is required to
automatically detect the presence of VITC and extract it. In HD
the timecode is extracted according to SMPTE RP188 from the
HD SDI.
VBI Lines – if necessary, select individual VBI lines to set the
VBI type that the Encoder should extract from that line.
