Scrambling detection mode:
When scrambling detection mode is set to ‘Both’, scrambling of a
service is detected by checking the control bit of the MPEG transport
stream packets and checking PES sync. If one or both checks
indicate that the scrambling requirement is not fulfilled, an alarm will
be raised. When ‘Control bit’ or ‘PES sync’ is selected, scrambling
detection will rely on the selected parameter only.
When Same as stream is selected, the requirement defined in the
stream threshold will apply.
Custom video PID:
If a stream is known not to contain correct PSI needed in order to
locate the video component, the user can define a custom video PID
to be decoded by the Extractor.
Note that for MPTS streams the service IDs for each service should
be unique in the threshold template, even if the stream itself does
not contain PSI.
Custom video mode:
When a custom video PID has been defined for a service, the user
must specify the video encoding format: MPEG2, H264 or HEVC.
DAR Mode:
The alarm threshold for Display Aspect Ratio can be set to Ignore,
Same or Specific DAR.
•
Ignore: No alarming for DAR.
•
Same: Alarm if the DAR changes.
•
Specified DAR: The DAR expected for the stream must be
specified in the text field below.
Expected DAR:
The expected Pixel Aspect ratio must be given in the text field (i.e:
1:1 or 2:1) if Specified PAR has been selected in the drop-down
menu prior.
PAR Mode:
The alarm mode of the expected Pixel Aspect Ratio, can be set to
Ignore, same or Specific PAR.
•
Ignore: No alarming for PAR.
•
Same: Alarm if the PAR changes.
•
Specified PAR: The PAR expected for the stream must be
specified in the text field below.
Expected PAR:
The expected Pixel Aspect ratio must be given in the text field (i.e:
1:1 or 2:1) if Specified PAR has been selected in the drop-down
menu above.
VB7880 Advanced Content Extractor User’s Manual version 5.2
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