Aspect Ratio Conversion Parameters - Ericsson RX8000 Reference Manual

Note: 3G-SDI and HD-SDI are exclusive modes. Thus, if one BNC is configured
3.13.4.6.2

Aspect Ratio Conversion Parameters

Aspect ratio conversion is controlled through the Decode > Advanced section of
the control interface.
Note: 4:2:2 Video Aspect Ratio cannot be up-scaled.
The RX8000 provides a hierarchy of intelligent control for setting the Aspect Ratio of
the outgoing down-converted SD video. The outgoing Aspect Ratio is controlled by
the SD Screen Aspect Ratio menu using the following two controls in the order of
precedence as shown below:
•
•
If the highest priority item is not present or has not been configured the IRD will act
on the next highest priority control. If the screen aspect ratio is set with the same
value as the incoming video aspect ratio, then the aspect ratio of the output video
will not be changed as per any of the above two controls.
•
•
EN/LZT 790 0005 R7A
- HD-SDI – Only HD video will be output from this Output BNC connector. If
the incoming video is SD the output on the video out BNC connector is
invalid.
SD-SDI – Only SD video will be output from this Output BNC connector.
-
Where the video being decoded is HD, it will automatically be down-
converted to SD.
3G-SDI – This configures the Output BNC connector for 3G-SDI required for
-
outputting 1080P50/60 video content.
- ASI – The Output BNC connector will output the incoming Transport Stream
providing an ASI source for down-stream equipment.
as 3G-SDI (or AUTO when the video content is 1080P50/60), the only
permitted options for the other BNC(s) are AUTO, SD-SDI, 3G-SDI or ASI.
Use AFD/BAR Data
HD Down-Conversion
USE AFD/Bar Data – If this option is enabled the down-converted SD aspect
ratio will be set according the Active Format Descriptor that has been embedded
in the incoming HD content. The Active Format Descriptor can be dynamically
changed by the content originator so that content can be switched between
aspect ratios as required. For example, movie content may be commanded to
be shown in letterbox format with commercial breaks being shown in center-cut
format.
AFD/Bar Data Timeout – AFD is a continuous signal. In the case where this
option is enabled, If the RX8000 detects that and AFD signal has not been
received for a user defined time period the RX8000 will fall back on the settings
and operation defined by the Screen Aspect Ratio and HD Down-Conversion
fields.
Using the Equipment
3-217