Cobalt Digital Inc 3G Fusion 9931-EMDE Product Manual page 102

3
Table 3-2 9931-EMDE Function Menu List — continued
• Metadata Embedding
Metadata Routing Example
In this example, the on-card Dolby encoder is to receive external metadata over serial port B. Also, the new metadata from the
on-card decoder is to be inserted into the SDI output SMPTE 2020 VBI and exported from the card over serial port A.
Serial Port 1
Serial Port 2
3-50
Tx – export new metadata
Rx – import external metadata
Dolby
Encoder
9931-EMDE PRODUCT MANUAL
9931-EMDE Function Menu List and Descriptions
(continued)
Embedded Metadata Output enables SMPTE 2020-1 metadata
embedding in the SDI video output, as selected using controls described
above.
Embedded Output Line allows selection of SMPTE 2020-1 metadata line
location within the VANC space for re-inserted Dolby
(Range is 9 thru 41)
Note: • Although the output line drop-down will allow any choice within the
9 thru 41 range, the actual range is automatically clamped (limited
to) certain ranges to prevent inadvertent conflict with active
picture area depending on video format. See Ancillary Data Line
Number Locations and Ranges (p. 3-9) for more information.
• The card does not check for conflicts on a given line number.
Make certain the selected line is available and carrying no other
data unless existing metadata is to be intentionally overwritten.
Typically, when encoding is active it is recommended that any
metadata not specifically related to that being used by the
encoder be removed (or replaced with metadata being used by
the encoder), and also that the line number be set to overwrite
obsolete input VBI metadata. Also, the encoded pair carries the
up to date metadata within the encoded pair stream. Removing or
replacing obsolete metadata avoids any ambiguity of having
different metadata packets on multiple lines, or metadata that is
not related to the encoding being performed.
Decoder metadata is exported (outputed) from the card
on Serial Port 1
Encoder receives external metadata on Serial Port B
Decoder metadata is embedded on SDI output
SMPTE 2020 VBI
SMPTE 2020 embed
new metadata
Dolby
Decoder
®
metadata.
9931-EMDE-OM (V1.17)