Product Description
Features
R&S VENICE S
24
User Manual | 2906.2506.02 - 01
ANC packages can be saved in QuickTime (CC only) and MXF OP1a files
according to SMPTE 436.
Closed Caption
R&S VENICE S allows pass through of embedded closed captions, insertion
from closed caption files and SD/HD up and down conversion. Thereby SD
closed captions conforms to the CEA-608. HD closed captions uses CEA-
608 captions encapsulated within CEA-708 packets.
R&S VENICE S supports embedded closed caption information stored in
QuickTime (MOV). It records embedded CEA-708 information from the
incoming SDI signal in digital SD and HD.
When writing QuickTime files (ingest or transform) the closed caption data
are preserved in the following order whereas the first type found is written
into the files:
1 CEA-708 ANC (digital)
2 CEA-608 ANC (digital)
By default it is a QuickTime CEA-708 track ('c708').
A closed caption track will only be added to QuickTime files if valid closed
caption data is detected on the first frame of the provided input or if writing of
such a track has been enforced in the R&S
VENICE software (available with
software version 3.5), in the R&S
®
Device Manager (available with software
version 4) or via R&S VENICE web service command
configureCodecRequest.
Furthermore, closed captions are stored in MXF OP-1a files as defined in the
SMPTE 436M standard. The closed captions are preserved with a head and
tail trim. Then they can be played out to SDI again.
Multiple languages can be inserted into four data channels on line 21 from
separate closed caption files. The first and the second closed caption track
will be placed into field 1 of the video frame. If more tracks
will be necessary
closed caption information also can be written in a separate *.scc file. For
this additional scc 3 files have to be enabled in the video settings of the
R&S
®
Device Manager. Field 2 of a video frame then transfer closed caption
tracks three and four.
For playout purposes external *.scc files can be inserted to the SDI signal.
VBI ANC (SMPTE 291)
WSS (Wide Screen Signaling,
ETSI EN 300 294)
AFD (Active Format Description,
SMPTE 2016)
VBI OP-42
(Teletext/Subtitles)
ANC OP-47
(SMPTE 2031)
Line 21 (VBI CEA-608 data)
(CC)
ANC CEA -608/708
(SMPTE 334-1)
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