xx
VQS1000
ZZZ
Video Quality Software Application
Online Help
*P077049001*
077-0490-01
VQS1000
Video Quality Software Application
ZZZ
Online Help
www.tektronix.com
077-0490-01
Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its
subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions.
Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this
publication supersedes that in all previously published material. Specifications and price change privileges
reserved.
TEKTRONIX and TEK are registered trademarks of Tektronix, Inc.
Manufactured under license from Dolby® Laboratories. Dolby is a trademark of Dolby Laboratories.
Confidential unpublished works. Copyright 1993-2002 Dolby Laboratories. All rights reserved.
Online help part number: 076-0223-01
Printed online help part number: 077-0490-01
VQS1000 software version 1.5
Contacting Tektronix
Tektronix, Inc.
14150 S
P. O . B o x 5 0 0
Beaverton, OR 97077
USA
WKarlBraunDrive
For p roduct information, sales, service, and technical support:
rth America, call 1-800-833-9200.
In No
Worldwide, visit www.tektronix.com to find contacts in your area.
Table of Contents
Getting Started
VQS1000 Overview........................... .................................. ................................ ... 1
User Interf
License Management............................................................................................... 6
Offline File Analysis ............................................................................................... 8
Real-time Analysis ................................................................................................. 8
Stream Selection ............................... ................................ ................................ .... 10
Stream Information................................................................................................ 12
View Tre
Video and Audio Tests ............................................................................................ 14
Alarm Parameters.................................................................................................. 15
Event Log........................................................................................................... 17
Recording Streams ................ .................................. ................................ .............. 17
Source Image - Processing Area Selection ................... .................................. ................ 20
Proce
ace .................. ................................ ................................ ..................... 2
nd Graphs ........................ ................................ ................................ ........ 13
ssed Images................ .................................. ................................ ................ 21
Table of Contents
Functions and Features
Configuring the VQS1000.................. ................................ .................................. .... 23
Motion Test......................................................................................................... 23
Black Test .......................................................................................................... 24
ockiness Test ...................... ................................ .................................. ............ 26
Bl
Color Display ...................... ................................ ................................ ................ 28
Frozen Frame ...................................................................................................... 28
Audio Measure ments and Configuration........................................................................ 29
Audio Analysis................... .................................. ................................ ................ 31
Audio Levels..... ................................ .................................. ................................ 32
Video Bit Rate ..................................................................................................... 32
File Configuration ... ................................ .................................. ............................ 33
Log File Configuration............................................................................................ 34
General Configuration............................. ................................ ................................ 34
Polling .... . .... . .... .... . .... ... . . .... ... . . .... . .... .... . .... ... . . .... ... . . .... . .... .... . .... ..... .... . .... .... . .... 36
About Tektronix VQS1000....................................................................................... 36
Index
VQS1000 Video Quality Software Application Online Help i
Table of Contents
ii VQS1000 Video Quality Software Application Online Help
Getting Started VQS1000 Overview
VQS1000 Overview
The VQS1000 Video Quality Software application is used for single-ended QoE analysis of video and
audio content. You can use it with all current Tektronix DTV Monitor configurations (MTM400A,
IPM400A, QAM
host PC network card can be accessed using IGMP (Internet Group Management Protocol). You can also
use the VQS1000 for stand-alone file analysis.
400A, RFM300) using private backhaul video and audio. Network traffic visible to the
Related Documentation
following table lists the product documentation supporting the VQS1000:
The
VQS1000 Video Quality Software Application Online Help 1
Getting Started User Interface
Table 1: VQS1000 product documentation
Item (Tektroni
VQS1000 Video
Software Application Quick Start
User Manual (077-0489-XX)
VQS1000 Video Quality
Software application online help
(076-0223-XX)
VQS1000 Video Quality
Software application online help
(077-0490-XX, printed)
VQS1000 Vi
Software application Read This
First (077-0492-XX)
xxx
Installa
x part number)
Quality
deo Quality
tion
Purpose Location
Provides installation and
high-level op
Provides in-depth operating
information
Provides in-depth operating
information
Describes late breaking product
informati
issues
erational overviews
-
on and operational
The installation of the VQS1000 is described in the VQS1000 Video Quality Software Application Quick
Start Us
er Manual, Tektronix part number 077-0489-XX.
Requirements
The requirements for the VQS1000 are listed in the VQS1000 Video Quality Software Application Quick
Start User Manual, Tektronix part number 077-0489-XX.
User Interface
This section provides brief descriptions of the screen display elements.
NOTE. The elements displayed are dependent upon the license enabled. See L
page 6).
icense Management (see
2 VQS1000 Video Quality Software Application Online Help
Getting Started User Interface
Table 2
: VQS1000 screen display elements
Brief description Detailed description
1
2
3
4
5
6
7
itle Bar (see page 3)
T
enu Bar (see page 4)
M
oolbar (see page 5)
T
tream Information (see page 5) Stream Information (see page 12)
S
rend Graphs (see page 5) View Trend Graphs (see page 13)
T
ideo and Audio Tests (see page 5) Video and Audio Tests (see page 14)
V
ource Image (see page 6) Source Image Processing Area Selection (see
S
–
–
–
page 20)
8
xxx
P
rocessed Images (see page 6) Processed Images (see page 21)
Title Bar
The title bar displays the application title and the source file name.
VQS1000 Video Quality Software Application Online Help 3
Getting Started User Interface
Menu Bar
Where available, shortcut keys are displayed in the screen display next to the menu option. The menu bar
options are as follows:
nalysis Menu Options (see page 4); View Menu Options (see page 4); Settings Menu Options (see
A
page 4); Help Menu Options (see page 4)
Analysis me
Open File:Selectafile for off-line analysis, see Offline File Analysis (see page 8).
Real-time: Select a source of traffic for real-time analys i s, see Real-time File Analysis (see page 8).
Pause/Resume Analysis: Select this button to pause or resume analysis.
Record Now:SeeRecording Streams (see page 17).
Stream Selection:SeeStream Selection (see page 10).
Recent F
Exit: Terminates analysis and closes the application.
View menu options.
Dashb
Trend Graphs, and Video and Audio Tests. This provides more screen space for the visual analysis
panels - Source view and Processed Image.
Settings menu options.
Configuration:SeeFile Configuration (see page 33)
Recording:SeeRecording Streams (see page 17)
nu options.
iles: Displays the names of the most recently opened files.
oard Layout: Selecting this option hides/shows the dashboard panels - Stream Information,
Use Polling: When enabled, the VQS1000 will poll services within a real-time MPTS. See also
R
eal-time File Analysis (see page 8).
Reset All Peak Markers: Select this option to reset the peak markers on the test meters (see page 14).
Help menu options.
Help: Opens the VQS1000 online help window. Access your area of interest using the navigation
pane of the help window. shortcut sensitive help is also available by selecting a screen display element
and pressing F1 key on your keyboard.
License Management:SeeLicense Management (see page 6).
About Tektronix VQS1000: The Tektronix VQS1000 Video Quality Test Suite information box
displays the test suite version number. You will need this number if you call Tektronix for technical
support.
4 VQS1000 Video Quality Software Application Online Help
Getting Started User Interface
Toolbar
The buttons displayed on the Toolbar provide links to dialog boxes that are used to set up and run
the application.
See also O
(see page 23).
Pause/Resu
Record Now. Select this button to start recording immediately. See R
pen File (see page 8); Real-time (see page 8); Stream Selection (see page 10); Configuration
me analysis. Select this button to pause or resume analysis.
ecording Streams (see page 17).
Stream Information
This panel provides a summary of the video and audio stream information, including the codec being
used and the current bit rate.
Trend Gr
This panel shows trend graphs for video and audio measurements. You can select which measurements
are dis
be selected.
Alege
double-clicking in the panel, or selecting or clearing the option in the shortcut menu.
See a
(see page 32); Loudness (Short and Long Term), True Peak, Target (DialNorm), (see page 29).
aphs
played, and the time period over which data is displayed; also a variety of plot line displays can
nd panel, displayed at the top of the trend graph panel, can be toggled on and off either by
lso B
lack Frame (see page 24); Blockiness (see page 26); Frozen Frame (see page 28); Video Bit Rate
Video and Audio Tests
Video Tests. This panel contains test related meters which give a visual indication of the video test status.
lack Frame (see page 24); Blockiness (see page 26); Fro zen Frame (see page 28); Video Bit Rate
See B
(see page 32)
You can set upper and lower thresholds for each test that will generate an alarm when the thresholds are
crossed. Where a stream is being received from a DTV Monitor, the alarm state will be passed back
and flagged in their respective screen displays.
Audio Tests. This panel contains test-related meters which give a visual indication of the audio test status.
See A
udio Measurements and Configuration (see page 29)
You can set upper and lower thresholds for each test that will generate an alarm when the thresholds are
crossed. Where a stream is being received from a DTV Monitor, the alarm state will be passed back
and flagged in their respective screen displays.
VQS1000 Video Quality Software Application Online Help 5
Getting Started License Management
Event Log
The event log panel records alarm activity that has occurred since the last time that the log was cleared.
The log file can be exported in CSV (comma separated values) format for detailed inspection.
See E
vent Log (see page 17)
Source Image
This panel d
image to be processed and displayed in the processed image panel.
See S
ource Image Processing Area Selection (see page 20).
isplays the source image; the selected video stream. You can select the area of the source
Processed Images
The processed image panels display analyses of the area that you have selected in the source image. See
S
ource Image Processing Area Selection (see page 20).
See M
otion (see page 23); Black (see pa ge 24); Bloc kin ess (see page 26); Color (see page 28); Audio
Analysi
s (see page 31); Audio Levels (see page 32).
License Management
Menu Bar: Help > License Management
The VQS1000 application and its constituent functions are enabled using a USB security d
page 6) and an option key string (see page 7).
When you start the VQS1000 application, the software compares a serial number stored on the dongle with
the encrypted option key string. The option key string also contains code which enables specific functions
he application, for example, video and audio.
in t
ongle (see
When you start the application for the first time, the License Management dialog box is opened
tomatically to allow you to enter the option key string that you were issued with.
au
NOTE. A valid license enables up to two instances of the VQS1000 to be run simultaneously.
f you purchase an upgrade, that is, permission to access and use more functions, a new option key string
I
will be issued to you.
(see page 7)
Dongle
A USB device that, with the option key string, unlocks and enables software functions in the
application.
6 VQS1000 Video Quality Software Application Online Help
Getting Started License Management
Option Key String
The option key string is an encrypted code that, with the dongle, unlocks and enables software
functions in the application.
Applying an Option Key String
1. Ensure that the dongle is present in a USB port of the client PC.
2. Select Help > License Management to open the License Management dialog box.
NOTE. If a valid option key is already installed, it will be shown in the Existing Option Key field and the
Key Status field will display Valid Key. The enabled options will be listed in the Licensed Options panel.
3. Ent
4. Select Apply.
5. Click Close.
VQS1000 Video Quality Software Application Online Help 7
er your new option key string in the new option key field.
The status of the key is displayed in the Key Status field; in this example, the key status is valid. The
Serial Number is extracted from the dongle. The enabled options will be shown in the Licensed
ptions panel.
O
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