EVS XTnano Version 11.01 - November 2012 Configuration Manual - Manual (Page 127)

Custom 1/2
Description Enables/disables a customized decoding of the SMPTE 334M
data packets. See section "Customizing the Decoding of
SMPTE Data" on page 117 for more information.
Values Yes / No (default)
Customizing the Decoding of SMPTE Data
Upon request, it is possible to customize the decoding of the SMPTE 334M data.
If you wish to keep uncompressed 8-bit data in the VANC data space, you can select two
lines - L
a
and L
b
- on which N
a
and N
b
bytes can be saved per field (frame for 720p).
The saved data are left aligned after SAV (Start of Active Video) and the maximum
number of data saved (N
a
+ N
b
+ regular SMPTE 334M packet) must not exceed 2014.
If you require this customization, please contact your EVS representative to specify the
number of bytes you want to keep and on which lines. EVS will provide you with a specific
customization file.
This customization file will be activated using the Custom 1, Custom 2 settings.
SD OUT Encoding
Description Enables/disables the encoding of the SMPTE334M data
present on the HD output on the SD downconverted output on
each play channel. See section "SMPTE 334 Data Encoding
on Downconverted Output" on page 117 for more information.
Values Yes / No (default)
SMPTE 334 Data Encoding on Downconverted Output
For the downconverted output, one SMPTE 334M packet is encoded per line starting from
the second line after the line specified for the switching line. In other words, the maximum
number of packets per field is as follows:
• 8 packets per field in 525i (lines 12-19 and 275-282)
• 15 packets per field in 625i (lines 8-22 and 321-335)
The limitations are:
• The data are re-encoded in the same order as they were in HD, but not necessarily on
the same lines.
• If VITC is inserted in the downconverted output, no SMPTE 334M data will be inserted
on the lines carrying the VITC.
117 3. Multicam Configuration
EVS Broadcast Equipment S.A. - November 2012 Issue 11.01.A