User's Manual Part 2

Tech-X Flex
®
(NG2) Tech-X Flex User Guide - Firmware v06.50
6-33
Intro
Overview
Wi-Fi
Ethernet
System
IP/Video
MoCA
RF
Specs
Table 6-16 Video QoS- Summary results, Stream/Expert Analysis tab
Table 6-17 Video QoS - Stream results, Stream Metrics tab
Result Description
Codec Type Stream type, as defined in ITU Spec ISO/IEC 13818-1.
For valid values, see Table 6-24, Other recognized transport streams/PID types on
page 6-38.
Image Size Horizontal resolution, indicating the left-right size of the image, in pixels.
-and-
Vertical resolution, indicating the top-bottom size of the image, in pixels.
Image Type Type of the image.
Valid values are:
• SDTV
• HDTV
Degradation
from Loss
Percentage of the overall quality degradation that can be attributed to network packet
loss.
Degradation
from Jitter
Percentage of the overall quality degradation that can be attributed to jitter buffer
discards.
Degradation
from Codec
Type
Percentage of the overall quality degradation that can be attributed to video
encoder/decoder selection.
Degradation
from Delay
Percentage of the overall quality degradation that can be attributed to delay.
Result Description
Frames Total number of frames received, by type.
Lost Total number of packets lost containing data for the respective frame type; for
example, the total number of packets lost containing I-frame data. These results
are packet counts, not frame counts.
NOTE: If packets for one frame type show an inordinate amount of loss
compared to others, there may be a problem with network congestion
and/or configuration. For example, some NEs may be configured to
discard video B-frame data during periods of heavy congestion.
Preliminary issue - Limited distribution only!