PRISM MPI2-25 and MPX2-25 Media Analysis Platform User Manual
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o
Sequence number
: RTP sequence counter that changes by one for each
RTP Media Datagram that is sent.
NOTE.
The status indicator will turn red if the received RTP sequence
numbers do not change by 1 on every packet.
o
Time Stamp
: The timestamp reflects the sampling instant of the first
octet in the RTP datagram. This value can be used to determine packet
sequence errors and jitter calculations to be made.
NOTE.
For 2022-6 signals, the status indicator turns red if the Time Stamp
field does not change at the rate of 27 MHz on every packet. For 2110
signals, the status indicator turns red if the Time Stamp field does not change
at the start of every field or frame at the rate of 90 kHz on every packet.
o
SSRC
: Identifies the Synchronization Source ID and is set in compliance
with RFC3550. This identifier is chosen randomly and should be unique
so no two SSRC have the same value with an RTP session.
•
Interface Sampling Frequency Error
: This error indicates that the
incoming video is arriving at a frequency outside of the supported range to
maintain stable video lock. The signal on the SDI Out video connector may
be affected.
Possible interface sampling frequency declaration in stream
header is incorrect for the stream type being carried.
NOTE.
The status indicator turns red if the received frame rate is not stable
enough during conversion to SDI. Marker Bit Frequency Errors can also trigger
this indicator.
•
HBRMT
: Lists these parameters of the High Bit Rate Media Payload
Header:
NOTE.
The HBRMT parameters do not apply to ST2110-20 streams.
o
Video Source Format
: Identifies whether source formatting is present:
§
Not Present
: Indicates no Source Format information is present.
§
Present
: Indicates source formatting is present.
o
Video Source ID
: Identifies the video source:
§
Primary (0x0)
: Indicates a primary stream.
§
Protect (0x1)
: Indicates a protected stream.
§
Reserved (n)
: When n is a number other than 0 or 1, indicates that
a reserved value is being used.
