SELENIO™ SEL‐1DEC1/SEL‐1DEC2
Installation and Operation Manual
Audio Decompression
© 2014 Imagine Communications Corp. Proprietary and Confidential.
Version 7.0 | Page 27
No Input Action
When the decoder detects a missing or damaged transport stream input, the No Input Action parameter
sets the output to either Black (with sync), Still frame (the last full frame of video), or No Sync. The
default setting is Black.
The No Sync option effectively turns off the SDI Out ports, and is used so that downstream video
devices detect a missing sync signal. If you use this setting, ensure that your downstream equipment has
failover capability to switch to an alternate source.
A generated black signal (resulting from a Black setting on loss of input or Sync setting prior to first
receiving the input) will normally follow the video format specified by Output Format Set. However, if
Auto is selected in Output Format Set, the generated black signal will be the last decoded standard (or
1080i/59 if the decoder is booted with no input signal).
If a transport stream exists, and it does not have video, the decoder acts as an audio‐only decoder. In
this case, the read‐only Video > Video Status > Present parameter displays the Audio Only message. No
alarms are triggered, and the decoder outputs either Black or Still, as set in the No Input Action
parameter.
If the No Input Action parameter is set to No Sync, the Configuration Error: No Sync alarm is triggered
upon loss of video.
Clipping
Use this parameter to enable or disable the video output clipping mode.
Video Status
This section reports the status of the following items:
•
Present
•
Decode Errors
•
Input Format
•
Output Format
•
Codec
•
Profile
•
Depth (DEC2 only)
•
Video Rate
•
User Data Present
•
Skips
•
Repeats
