Stream View

Only administrators can adjust bit rate limits.

Bit Rates

The program bit rate (Bit Rate) shows the sum of the individual bit rates for all the

PIDs that make up the program.

NOTE. It is possible that in certain transport streams, different programs may reference a single PID; for example, programs may reference one PCR PID. In these cases, the PID bit-rate will be included in all the programs from which the PID is referenced. Therefore the total bit-rate of all the programs may add up to more than the total stream bit rate displayed at the top of the window.

Change Bar

The Change Bar indicates the variation of bit rates in each program. The ends of the Change Bar show the maximum and minimum values of the bit rate since monitoring started or since the change bars were last reset.

Change Bar

The Change Bar on all programs can be reset by selecting the

Reset Change Bars button at the top of the Programs screen.

Bit Rate Limits

For each program it is possible to set a minimum () and maximum () bit rate limit. If the incoming bit rate falls outside the values that have been set, an alarm is indicated on the screen by a color change in the graphical bit rate bar; the Program Occupancy test and state icon on the Tests view are also set. This test can also activate the external alarm outputs. When enabled, the limits appear as in the preceding diagram shown above.

Minimum Limit

Maximum Limit

3-32

MTM400 MPEG Transport Stream Monitor User Manual