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9.4.4
S
ERVICE
C
ONFIGURATION
When a Statmux group has been expanded, you can edit any program inline:
The following service related parameters are available under the Settings tab:
Minimum Bitrate
This is the minimum allowed bitrate allocated by this program.
Default Bitrate
This is the bitrate used when there contact is lost with the Statmux controller,
eg in a Redundancy Switching scenario.
Maximum Bitrate
This is the maximum allowed bitrate allocated by this program.
Priority
The priority will adjust the video priority of this channel in the range [-5,-4,-3,-
2,-1-,1,+2,+3,+4,+5]. A higher priority will increase the allocated video
bitrate and video quality of this program compared to other programs in the
StatMux group. The priority parameter will directly affect the amount of
quantization (QP) allowed for this program, in QP steps.
9.4.4.1
StatMux Service Status
Clicking on a specific service in the Statmux will bring up the program status with history view up to 24 hours. The
following status is available per program:
•
Video Bitrate
: Bitrate allocated by the video PID in this program.
•
Activity
: Informal measurement of frame-to-frame video activity and estimated bitrate requirements
for this program. A low activity indicates a still picture while a high activity indicates rapid scene
changes. A HD channel will have a higher video activity (and higher bitrate requirements) than a SD
channel.
•
Distortion
: Informal measurement of video distortion after encoding, based on the amount of
quantization introduced per video frame. A low distortion value indicates that a low QP and a high VQ
was achieved.
Four different time scales are available: 5 min (Live), 1 hour, 5 hours and 24 hours.