Table of Contents
Advertisement
7700 MultiFrame Manual
7710ARC Series - SD Aspect Ratio Converter
7.4.3.8. Setting The Priority Level for Processing Incoming SMPTE 2016 Packets
When the Input image Aspect and Source Frame Aspect controls are set to SMPTE 2016, there are three
priority controls that determine whether the ARC series modules should respond to AFD/Bar Data or Pan-
Scan VANC packet information. Priority 1 has the highest priority, and priority 3 has the lowest priority.
For the sake of simplicity only Priority 1 menu item will be shown in the manual.
ARC Control
SMPTE 2016 Setup
Priority 1
Pan - Scan
Bar Data Only
AFD/Bar Data
None
The default settings of the priority controls define the following processing priority.
Priority 1:
Use AFD to determine input image location if it is present, except where the image does not
extend to the full height or width of the source frame and AFD alone is insufficient to
describe the extent of the image. (AFD codes 0100 and 0000) For these codes the bar
data will be used.
Priority 2:
If AFD/Bar data is not present then use Pan-Scan packets to determine the image location.
Priority 3:
Ignore all SMPTE 2016 packets
7710ARC-34
When AFD/Bar Data is selected, and if both the AFD/Bar Data and Pan-
Scan packets are present and valid, the AFD/Bar data packet is used to
determine the image location. If only pan-scan packets are present,
they will be ignored. This is the default value for the Priority 1 control.
When Bar Data Only is selected, the Bar data parts of the AFD/Bar data
packet will be used to determine the image location. AFD information in
the packet will be ignored. This setting should only be used if the AFD
and Bar Data parts of the packet are inconsistent with each other and
the user wishes to give the Bar data priority over the AFD. This is the
default value for the Priority 2 control.
When Pan- Scan is selected, and if both the AFD/Bar Data and Pan-
Scan packets are present and valid, the Pan-Scan packet is used to
determine the image location. If only AFD/Bar Data packets are
present, they will be ignored.
When None is selected both AFD/Bar Data and Pan-Scan packet
information will be ignored. This is the default value for the Priority 3
control. The image location must be determined using other means.
See sections 7.4.1.2 and 7.4.1.4.
Revision 1.1
Advertisement
Table of Contents
