GUIDE TO INSTALLATION AND OPERATION
XVP-3901 |
35
When AFD is present at the input, the card can perform an automatic adjustment of the aspect ratio. See the
appendix for more details.
5.4.5.1
Default settings
section
Default/Forced:
this text box is labeled according to the mode selected in the Input Screen pulldown in the Video
Output Group – see page 27
•
In AUTO mode, labeled DEFAULT and shows the current default AFD code to be used if no valid AFD code is
detected at the input.
•
In FORCED mode, labeled FORCED, and shows the
code that is forced into the system input regardless of the
actual input code.
Change:
Click the Change button to open the
Select AFD
panel showing the available AFD codes that could be used as
the default. Click on one to select it, then click
Apply
or
OK
at
the bottom of the panel.
Keep Last:
click in this checkbox to use the last detected
AFD code at the input as the default code to be used in the
Auto
mode when no AFD flag is detected. This box is
disabled in the
Forced
mode.
5.4.5.2
Config
section
Presence:
The status indicator turns Green when AFD is detected on the input signal. On an SD input, the AFD
presence will indicate the presence of the selected AFD source only, i.e. AFD, VLI or WSS (for 625 sources only)
Source:
Selects the source of AFD information – options are AFD (SMPTE 2016), VLI or WSS (for 625 sources only).
Insertion Line:
The Insertion line is used to select on which line in the VANC the AFD packet (SMPTE 2016) will be
inserted. It is not necessary to specify the detection line since the card will automatically detect the incoming packet.
Insertion:
The Insertion pull-down menu is used to enable or disable the insertion of AFD on the output:
•
On the HD output, the Ancillary Aspect Ratio packet (SMPTE 2016) will be inserted
.
5.4.5.3
Flags
section
The Flags sub-section indicates which AFD flag is detected at the input and which flag is inserted at the output.
5.4.6 De-interlacer
tab
Some interlaced video sources are film-based originating from
24p film images. For optimum scaling performance, it would
be best to de-interlace this type of source by simply merging
the source’s fields to recreate the original 24p image, thereby
introducing no de-interlacing artifacts prior to scaling and
format conversion.
Figure 5.19
Video Output 3G/HD – AFD tab
Figure 5.20
Video Output 3G/HD - De-Interlacer tab