Specifications
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Cisco TV CDS 2.5 ISA Software Configuration Guide
OL-24788-01
Chapter 4 Configuring the CDS
System Level Configuration
Step 3 Click Submit.
To clear the fields and start over, click Reset.
Configuring MPEG Tuning
The MPEG Tuning page allows you to set the MPEG ingest settings, the Program Clock Reference
(PCR) settings, stream restamping, and the playlist trick-mode restriction settings.
To view the current settings choose Configure > System Level > MPEG Tuning.
To configure the settings, do the following:
Step 1 Choose Configure > System Level > MPEG Tuning. The MPEG Tuning page is displayed.
Step 2 Enter the settings as appropriate. See Table 4-11 for descriptions of the fields.
Continuity Counter
Errors
Sets the Continuity Counter Errors threshold. The default is Ignore.
Each transport-stream packet header has a 4-bit continuity counter, which
increments for each transport-stream packet with the same PID. The continuity
counter wraps around to zero when it reaches its maximum value of F
(hexadecimal). It is used to determine if any packets are lost, repeated, or out of
sequence. The MPEG-2 specification allows the continuity counter to be
discontinuous in order to accommodate local insertion of data packets and
splicing. As a consequence, the continuity counter can be discontinuous even in
an error-free transmission.
Number of Sync
Loss Errors
Sets the Number of Sync Loss Errors threshold. The default is 3.
The sync byte is a fixed 8-bit field located at the beginning of the
transport-stream packet header with a value of "0100 0111" (0x47). A sync loss
is detected when a packet does not have the normal 0x47 value as the first byte
and ends when a packet has the 0x47 value.
Sync Loss Duration Sync Loss Duration allows you to specify the maximum time a sync loss can
occur. If a sync loss exceeds the Sync Loss Duration, the ingest fails. The
default is 5 seconds.
A sync loss occurs whenever a packet does not have the normal 0x47 value as
the first byte and ends when a packet has the 0x47 value. Even if the sync loss
lasts 15 minutes it is still only counted as one sync loss.
Table 4-10 Ingest Tuning Fields (continued)
Field Description