OmniTek OmniTek XR User Manual

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Advanced Measurement Technology

User Guide for

OmniTek XR

Software Version: 1.0.1.9

12th January 2006

© 2006 Image Processing Techniques Ltd. All rights reserved

This documentation contains proprietary information of Image Processing Techniques Ltd. No part of this documentation may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, recorded or otherwise without the prior written permission of Image Processing Techniques Ltd.

The information contained in this documentation was prepared by Image Processing Techniques Ltd. with all reasonable care and is believed to be accurate. However Image Processing Techniques Ltd. does not assume responsibility for loss or damage resulting from omissions, inaccuracies or errors contained herein. The information contained in this document is subject to change and revisions hereto or new additions may be issued to incorporate such changes.

Trademarks Please note that Windows, Windows Professional, and Windows XP, are all trademarks of Microsoft Corporation

Table of Contents

1. USER GUIDE ................................................................................................................

6

Introduction.....................................................................................................................................................................

6

From Power-Up..................................................................................................................................................

6

Quick Start Guide...........................................................................................................................................................

6

Video Setup........................................................................................................................................................

7

Windows Layout ................................................................................................................................................

7

Image Choice......................................................................................................................................................

8

2. DETAILED USER GUIDE .............................................................................................

9

Opening Window Description .......................................................................................................................................

9

Menus ...............................................................................................................................................................................

9

File Menu ...........................................................................................................................................................

9

Preferences.........................................................................................................................................

10

Windows Layouts, and Snapshots ....................................................................................................

10

Show Menu ......................................................................................................................................................

11

Run Menu.........................................................................................................................................................

12

Configuration Menu.........................................................................................................................................

12

System Configuration........................................................................................................................

12

Engineering Configuration................................................................................................................

12

SNMP Configuration.........................................................................................................................

12

Look and Feel Configuration ............................................................................................................

12

Analyzer Menu.................................................................................................................................................

13

Input to Analyzer...............................................................................................................................

13

Interpolator ........................................................................................................................................

13

Low Pass............................................................................................................................................

13

TRS Pass............................................................................................................................................

13

Closed Caption Source ......................................................................................................................

13

Output Menu ....................................................................................................................................................

14

Full Screen Menu .............................................................................................................................................

14

Instructions for the use of the Layout Builder..................................................................................

15

Assigning Settings.............................................................................................................................

16

Window Menu..................................................................................................................................................

17

About Menu......................................................................................................................................................

17

Engineering Controls (part of Configuration menu) .......................................................................................

17

Engineering - Video - General ..........................................................................................................

17

Reprogram Flash ...............................................................................................................................

18

Set Video Standard............................................................................................................................

18

Sync Type/Position............................................................................................................................

18

Monitoring Output.............................................................................................................................

18

Engineering - Video – Generator ......................................................................................................

18

Engineering - Video - Analyzer ........................................................................................................

20

Engineering - Video – Dual Link (Option).......................................................................................

21

Engineering – Audio – Error Detection ............................................................................................

22

Engineering – Picture ........................................................................................................................

23

Engineering - Timecode Reader Configuration...............................................................................

23

Engineering - Video Index Reader Configuration............................................................................

24

Engineering - Wide Screen Signalling (Line 23) Reader Configuration .........................................

25

Engineering - Teletext Detector Configuration ................................................................................

26

3 TOOLBAR ICONS........................................................................................................

 

27

Run (Transport) Toolbar (with Motion/Capture option)

................................................................................. 27

Time Shift .........................................................................................................................................

 

27

Sequence play controls......................................................................................................................

3

28

Page

 

Source Toolbar .................................................................................................................................................

29

Source Toolbar (Dual Link Option) ................................................................................................................

29

Main Toolbar....................................................................................................................................................

30

Crosshair Toolbar.............................................................................................................................................

33

Cursor Toolbar .................................................................................................................................................

33

Video Standard Toolbar...................................................................................................................................

33

4 XR WINDOWS..............................................................................................................

35

Waveform Window.......................................................................................................................................................

35

Options Menu...................................................................................................................................................

37

Colour Mode menu ..........................................................................................................................................

40

Window menu ..................................................................................................................................................

40

Histogram Window.......................................................................................................................................................

40

Vectorscope Window....................................................................................................................................................

41

Region of Interest Window..........................................................................................................................................

43

Mini-Pic Window..........................................................................................................................................................

44

Window Controls..........................................................................................................................................................

45

Cage Generator.............................................................................................................................................................

46

5 VIDEO CHECKING FEATURES..................................................................................

 

48

Introduction...................................................................................................................................................................

 

48

Video Status/Error detection............................................................................................................................

 

48

General video status parameters ......................................................................................................................

 

49

Video Index parameters ...................................................................................................................................

 

50

Wide screen signaling parameters (SD only) ..................................................................................................

 

50

Teletext Detection (SD only)...........................................................................................................................

 

50

Closed Caption detection .................................................................................................................................

 

50

Error Checking parameters ..............................................................................................................................

 

50

Timecode Checking .........................................................................................................................................

 

51

VITC detection parameters. (Vertical Interval timecode) (SD only)

............................................................. 51

ATC detection parameters. (Ancilliary data timecode) ..................................................................................

51

6 AUDIO CHECKING FEATURES .................................................................................

 

52

7 GENERATOR WINDOW..............................................................................................

 

53

File Menu...........................................................................................................................................

 

53

View Menu ........................................................................................................................................

 

54

Source Menu......................................................................................................................................

 

54

Pattern Menu......................................................................................................................................

 

54

Window Menu ...................................................................................................................................

 

54

Toolbar Icons.....................................................................................................................................

 

54

Pattern Creation................................................................................................................................................

 

56

Frame based patterns .........................................................................................................................

 

56

How to import Frame patterns ..........................................................................................................

 

56

Sequences ..........................................................................................................................................

 

56

How to import Sequences .................................................................................................................

 

56

How to Grab Images (Motion/Capture option only) ........................................................................

57

Full Frame Record/Playback (Advanced Option only)...................................................................................

58

RVF File Editor (Advanced Option only) .......................................................................................................

 

59

Pattern Menu ....................................................................................................................................................

 

59

File Monitor Function ......................................................................................................................................

 

60

Generator Playlists ...........................................................................................................................................

 

61

Page

4

 

 

Add/Edit item ....................................................................................................................................

62

 

Item order...........................................................................................................................................

63

 

Delete item.........................................................................................................................................

63

 

Playlist save/open/new ......................................................................................................................

63

8 OTHER FEATURES.....................................................................................................

65

Status Bar ......................................................................................................................................................................

65

Miscellaneous Features ................................................................................................................................................

65

 

Window sizes ...................................................................................................................................................

65

 

Size and Position Snap.....................................................................................................................................

65

 

‘Shift’ Keyboard Shortcuts ..............................................................................................................................

65

PRESETS ........................................................................................................................

66

A1

FILE TYPES .........................................................................................................

67

A2 LOGGING ..................................................................................................................

68

Configuring Logging, and SNMP alerts.....................................................................................................................

68

 

Logging Configuration and use .......................................................................................................................

68

 

SNMP Configuration and use..........................................................................................................................

70

 

SNMP Configuration Problems.......................................................................................................................

70

A3

MEASURING AUDIO/VIDEO DELAYS ...............................................................

72

A/V Delay Test Sequence .............................................................................................................................................

72

 

Loop A/V Delay Testing..................................................................................................................................

73

 

Relative A/V Delay Testing.............................................................................................................................

74

 

Setting up the OmniTek System ......................................................................................................................

75

 

Gen Setup .........................................................................................................................................

75

 

View Setup........................................................................................................................................

76

INDEX ..............................................................................................................................

77

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1. User Guide

Introduction

This user guide assumes that you are familiar with basic Windows techniques, such as using a mouse, manipulating window sizes and positions, scrolling etc.

From Power-Up

When the operating system has finished booting, and if prompted by the system, please log in. The default software installation places a shortcut to the OmniTek software on the desktop. The software will have been installed into ‘c:\program files\omnitek\omnitek XR’. Consult the software installation guide as required.

By default the OmniTek XR application does not auto-start upon starting windows, so to start the application, double click either the ‘OmniTek XR’ icon on the desktop, or select ‘OmniTek XR’ from the Start menu/Programs/OmniTek.

If required, OmniTek XR can be set to start up automatically with Windows. This can be done by selecting ‘Preferences’ from the File menu, and then selecting ‘Start with Windows’. Details on all of the menus in OmniTek XR starts on page 9.

Quick Start Guide

This section provides a basic guide to setting up the OmniTek application to use OmniTek XR. Since all OmniTek XR systems have the ability to send status messages over SNMP, by default the system attempts to connect to an SNMP service that may be running on the PC. If such a service cannot be found, you will see the following message.

If you do not need the SNMP functionality, this can be safely ignored. However it is possible to prevent this message appearing again. To do this, select ‘SNMP Settings…’ from the ‘Configuration’ menu. From the dialogue that appears, clear the tick box labeled ‘Display error if connect unsuccessful’.

If you do need the SNMP service, then this needs to be separately installed. The SNMP service is a Microsoft operating system extension, and can be installed from the master Windows installation disk created by Microsoft. OmniTek have a document on the support section of our website explaining how this service may be installed. The OmniTek website address is www.omnitek.tv

Further details on the use of SNMP with OmniTek XR may be found in the SNMP appendix, starting on page 68.

Full Screen

After installation, XR defaults to running in Full Screen Mode. Press the ESCape button to toggle between normal mode and full screen mode. Full screen modes have little control ability, although different displays may be configured, and keyboard presets can be defined for common functionality. However they have the advantage of normal ‘windows’ modes of a less cluttered screen. Typically full screen modes have a black background which may make them more suitable in a colorist type of environment.

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If you don’t want to use full screen mode, you can change the default setting by selecting ‘Configuration…’ from the ‘Full Screen’ menu. Clear the tick box marked ‘Startup in fullscreen mode:’, and click OK on the dialogue.

Details on Full Screen modes are on page 14.

Video Setup

Once the system is running normally within ‘Windows, the next thing to do is to set the video standard you will be working in. Normally you will want to use ‘Auto Detect’, which may be set on the ‘Video Standard’ toolbar.

If the toolbar is not visible, it may be selected from the ‘Show’ menu. If you do not wish to use Auto Detect, you can select a specific standard from this toolbar. However you may also need to select the lock reference. This can be done by selecting ‘Engineering…’ from the configuration menu, and you then need to select the ‘Video’ section, and then the ‘General’ page.

It would be normal to select ‘Serial’ lock for a waveform monitor. Serial lock is selected automatically in ‘Auto detect’.

For further details of video setup, please refer to page 13 of this manual.

Windows Layout

By default, the choice of windows and toolbars that was previously used will open. If these are not suitable, you can change which windows are open, and their positions, by using usual click and drag techniques. A full list of the available windows is on the ‘Window’ menu, although most windows have icon shortcuts.

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If you have previously saved a system configuration, you can open a configuration, by selecting ‘Open System Configuration’ from the ‘Configuration’ menu. No system configuration files are included with the original installation.

Image Choice

If you have an OmniTek XR system that also includes the Motion/Capture option, the full ‘Source’ toolbar will be present. If it is not visible, it can be turned on from the ‘Show’ menu on the main application. For normal use, you should set the analyser source to be the serial input, and you must select whichever of input A of Input B that you have connected to. If you also have the optional Motion and capture package, then you also have the option to set this to ‘Generator’, which is the setting to view data that has previously been captured. If you only have OmniTek XR without additional options, this toolbar only has the Input A/Input B switch, and the other items are automatically selected to monitor whichever link is selected.

Now that the chosen source is active, and the windows are present, you can use your OmniTek XR system. Complete details on OmniTek XR operations are contained in the next sections.

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2. Detailed User Guide

Opening Window Description

With the OmniTek application running, you will see a window similar to that illustrated below, depending on what modules and options are present on your system.

Dealing with each area in turn, and starting with the menus…

Menus

Each function on the menus is described in detail.

File Menu

The file menu has three main functions, Preferences, Window layouts, and snapshots.

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Preferences

From the Preferences choice, you can enable automatic resizing of windows when changing standards. This can be useful if you are using the waveform windows at the default size for a given standard, as not all standards use the same aspect ratio.

When the OmniTek application is started, it automatically loads the configuration that was active when it was last closed. The second Preference choice here lets the system prompt you for choice of configuration instead. This can be useful if different people use the system, and have different requirements.

It should be noted that a System configuration contains 100% of your setup data. It includes which windows and toolbars are open, and their sizes and positions, what video format, what locking reference, what options have been set for the optional error logging package etc.

The ‘Start with Windows’ menu entry forces OmniTek XR to start up at the same time as you log into Windows. This saves you having to start the application from the desktop, or Start menu.

There are two menu choices for measurement units. These affect all uses of the related measurement units. For example, by selecting the amplitude measurement units to be milli-volts, then amplitude measurements made using the cursors will be in milli-volts, the minimum and maximum thresholds will be expressed in milli-volts, and all the waveform graticules will be shown in milli-volts. If the values are expressed as digital levels, this is as a 10 bit number from 0 to 1023, which can also be shown in hexadecimal.

Similarly the horizontal measurement units can be shown as time, in uS, or as pixel sample number. Hence the horizontal axis on the waveform graticules will show a different range of sample number depending on the current video format.

Related to these global settings for measurement units, please note that two separate waveform calibrations are available. These are the SMPTE range of 64 to 940/960, and the full range of 0 to 1023. The setting for this can be changed using the Option menu in the waveform window, selecting the Graticule submenu, and then choosing either ‘SMPTE range’ or ‘Full range’. Full details on the menus in the waveform window are on page 37.

Windows Layouts, and Snapshots

It is possible to load and save windows layouts. These layouts only save the size and position, and status of the windows, so engineering settings like video format are unchanged.

Window snapshots let you save the current contents of a window to a file in an appropriate format. If all snapshots are saved, then the contents of every open window is saved. Waveform, histogram and vectorscope windows are saved as bitmap images, and the dataview window is saved as a text file. It is also possible to save individual windows, using a menu selection on each window, which is detailed in the Window menus section, starting on page 37.

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Show Menu

The main desktop application has four work surfaces available. You can just use one. However, if preferred, you can split the various windows amongst the four work surfaces, which may help to keep an uncluttered screen. The Show menu gives access to the four different pages, although you can also use the four buttons available on the bottom right hand side of the status bar (see page 65 for details on status bar). For each of these four work surfaces, you can define which toolbars are present, and which windows are open. This is easily done by selecting a given work surface, and once in that surface, open/close the windows and toolbars as required. This will not affect what toolbars and windows are open in other windows. Note that the four buttons on the status bar are only correctly available if your screen resolution is set to a minimum of 1280 * 1024. For smaller resolutions, some of the buttons will be off the edge of the display. We always recommend using 1280 * 1024 or larger displays.

The Show menu also lets you individually enable or disable each toolbar. The available toolbars are

Window

main controls for the OmniTek application. It lets you open/close

 

the main operating windows, plus controls a few special purpose

 

features.

Run

transport controls to control sequence playout (only if the

 

Motion/Capture option is present)

Source

displays the main router controls, which select the source for the

 

analyser, the source for the monitoring output, and the source for

 

the serial output (only if Motion/Capture option is present), and

 

for all versions, control the A/B input switch

Video-Standard

a small toolbar that lets you change video standard without going

 

into the main Engineering dialogue

Region Of Interest

This is a separate window that acts in conjunction with the

 

waveform and vectorscope windows, and provides fine detailed

 

control over which portion of the image is used to create

 

waveforms etc. This is described in detail on page 43.

Crosshairs

position control and readback of main cursor

Cursors

measurement cursors for time and amplitude

Closed Caption Log

This provides access to logging closed caption data to an XML

 

file.

Status bar

at bottom of main window – provides video standard details.

As a standard ‘Windows’ feature, all toolbars can be moved around on the main toolbar region, or can be undocked from this region. Toolbars can be docked at either the top of bottom of the main application window. It is not possible to dock on the left or right edge.

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Run Menu

The Run menu is provided to duplicate the transport controls included on the Run toolbar. It is anticipated that the controls will normally be used from the toolbar, as this is usually much quicker to use. However the menu is provided such that automated keyboard macros may be used, as menu items can always be selected by combinations of key presses.

Items available on the Run menu are ‘Play’, ‘Stop’, ‘Jog’ etc, and are all described in the section on the Run toolbar, on page 27, along with the ‘Time Shift’ feature that is included only as part of the ‘Advanced Option Package’.

Configuration Menu

This menu contains four sections.

System Configuration

This section lets you load and save entire system configuration settings. These control 100% of the machines settings, such that you can copy the system configuration settings from one machine to another, and have it set up identically, with the same windows open, in the same positions etc. The current settings are always saved when the application is closed, and by default will be loaded again when the application restarts. The system configuration is saved in a .ods file.

Engineering Configuration

The Engineering settings comprise the settings made in the Engineering dialogue box, for which full details can be found on page 17.

When Engineering settings are saved and loaded, the layout of the windows and toolbars is unaffected. Engineering settings are stored in a .ode file.

SNMP Configuration

The SNMP settings control the SNMP configuration, which are only required as part of the logging package. Consequently details of SNMP configuration, as well as full details on the logging functionality, are included in the appendix starting on page 70.

Look and Feel Configuration

Look and Feel presets are used to let you copy the user setup from one system to another. The configuration lets you specify that certain display items sue a specific colour, and these settings can then be saved and loaded as presets.

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Analyzer Menu

The Analyzer menu is shown above. A variety of functions for the main OmniTek XR analyzer module are available here. Functions used most commonly are available from icons on the main toolbar, whilst features that are rarely used can only be controlled from this menu. Each menu item is described in turn.

Input to Analyzer

Controls whether the main View module looks at the serial input, or at the Generator (only if motion/capture option is present). This control can also be changed from the ‘Source’ toolbar.

Interpolator

This enables the interpolator that controls how the hardware samples and displays the incoming data. Occasionally a clearer result can be obtained by turning the interpolator off, but usually it would be left on.

Low Pass

This turns on a low pass filter. The frequency response changes depending on whether the current video format is SD or HD.

TRS Pass

By default, TRS data is not displayed in the mini-pic, waveform view, or vectorscope. This control lets you enable the display of TRS. The data shown in the dataview will always contain any TRS data present on the signal, regardless of the state of this control.

Closed Caption Source

Closed caption data from the serial input can be decoded and displayed on the mini-pic, or written into an XML log file. The data source can be from line 21, EIA608, or EIA708. Note that in order to display on the mini-pic, this display must be enabled, which is done from the ‘Options’ menu of the mini-pic window. Details on this on page 44.

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Output Menu

This menu controls features relating to the output video.

OmniTek XR can display a crosshair on the output. The crosshair is always centred over the sample currently displayed in the dataview. The crosshair can appear on the analogue (monitoring) output, or the serial digital output, or on both outputs.

XR can detect when the incoming video is out of range, based on the range thresholds set up in the Engineering menu (see page 20 for details), and key out any erroneous pixels and replace them with a flashing black and white pattern. This error display can be included on the analogue output, the digital output, or both outputs. The menu selection determines which output is used to display the flashing pattern. Note that range errors can also be highlighted onto the YUV waveforms. The same thresholds are used to determine out of range, but the choice of highlighting is set on the Options/Data menu, from within the waveform window.

Similarly, XR can detect when the incoming video (YUV data) is outside of valid RGB colour space. Again out of gamut pixels can be highlighted on either output with the flashing pattern. In the same way, out of gamut pixels can also be shown on the RGB waveforms. Note it is not possible to highlight pixels with range errors and pixels with gamut errors simultaneously on the waveforms, as pixels with range errors can only be seen when displaying YUV waveforms, and pixels with gamut errors can only be seen when displaying RGB waveforms.

Full Screen Menu

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As well as operating within a convention ‘window’, OmniTek XR has many display modes that can operate within a ‘full-screen’ environment. This menu is concerned with these modes.

From the initial menu you can directly launch a specific view into full screen mode. When in full screen, press ‘ESCAPE’ to return to the normal view. Pressing ESCAPE again will go directly to full screen, to the view last looked at.

By selecting ‘Configuration’, you can adjust various settings.

The full screen display includes a global error detection display. This shows as ERRORS, and the display is the logical AND of all of the conditions that are checked in the ‘Video status error checking’ section. This information, as well as a small amount of help information, can be displayed at the top and bottom of the full screen displays, by clicking the ‘Show Help/Information’ box. When in the full screen mode, pressing the ‘I’ button also toggles display of the help information.

It is possible to start up the application and directly start in full screen, by selecting in the ‘Startup in full-screen mode:’ box.

Instructions for the use of the Layout Builder.

OmniTek XR contains a full screen layout editor which provides a host of powerful features in an easy to use format. A new screen layout is normally created by taking a copy of an existing template layout, then assigning elements such as waveforms, or vectors, to each pane in the layout. The settings for each element can be customized, and a hotkey assigned to the final layout. It is even possible to have individual engineering settings for each layout.

The loaded screen layouts that match your current screen resolution will always be shown in the ‘Layouts’ section at the top of the dialogue. Start by scrolling through this, and selecting the required template. If there is not a template suitable for your requirement, these can be created by editing a text .ini file. Please contact OmniTek to see if an alternative template can be supplied, or for help on how to edit the .ini file.

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Once you have selected a template layout, the window below will show all currently existing instances of that template layout. It is possible that not all templates will have been used, so for some, the window will be empty.

If there are existing instances, they can be edited. To create a new instance, select the ‘Add new instance’ button. A new instance appears, with the window panes unassigned, and the whole thing highlighted in dark red, and an individual pane highlighted in a lighter red.

Similarly you can copy an existing instance including all of its settings, in order to produce a similar layout, and you can delete instances no longer required.

To edit a new or existing instance, start by double clicking one pane within the instance, or alternatively right click over the pane, and select ‘Change pane type’. From the popup window, select your choice of waveform, vectorscope etc. Repeat this process for the other panes within the instance.

Initially the new instance will have a default name shown directly above it, of the form ‘layout 3’. Double click on this name, and a popup appears that lets you rename the instance.

Assigning Settings

By default, no specific settings are assigned to the various portions of the full screen view. So when you enter a full screen view, each pane will adopt the current settings of the related window within the normal environment. For example, the waveforms in a given full screen view could show YUV. Go back to the windows environment, and change the waveform display to RGB, and then go back into the full screen display. If no settings have been assigned, then the waveforms will now be showed in RGB format.

However, if, for the given full screen view, the waveforms had been assigned to YUV, they would always be YUV, regardless of the setting within the Windows environment.

To assign settings to a pane, select the pane, and click ‘Assign’ from the ‘Pane settings’ section. Applicable settings include the choice of YUV or RGB, and whether the waveforms are shown at normal size, or are stretched to a larger size.

If at a later stage you wish to change the settings previously assigned, then ‘Load’ the pane settings back into the Windows version, change them to suit your requirement, and re ‘Assign’ them back.

Similarly it is possible to entirely ‘Remove’ the pane settings if required.

As well as assign Pane settings, it is possible to separately assign the Engineering settings, the ROI settings, and the Look and Feel settings.

The Engineering settings includes things like video standard.

ROI settings includes things like all line versus single line view, which can also be configured to look at specific lines. This is very useful, as three identical views could be configured, except that the first view is All line, the second view is only the first active line, and the third view could be only the last active line. With these views assigned to separate hotkeys on the keyboard, it is very fast to switch between these different settings.

The Look & Feel settings include things like the colour of the waveforms.

Be warned that the various assignments can still be in force after switching from a full screen view with an assignment. For example, if F4 switches to a given arrangement of panes, but also switches to NTSC, then the whole unit will remain in NTSC until you change it back, or select another hotkey that has an Engineering setting assigned to it. So really the Engineering settings should either never be assign, or should be assigned to every possible hotkey.

Whilst certain controls can be assigned to different full screen displays, greater versatility and greater ease of use can exist by using Presets (see page 66) to control simple functions like switching between single line and multi line view.

Having chosen your full screen format, chosen displays for each pane, and configured each pane to suit your requirements, the last thing to do is to assign a hot key to that layout. Right click over the layout image, and select ‘Assign hot key’ from the menu that will appear. When the hot key dialogue appears, press the key or key combination that

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you wish to use, and press OK (and do not press Enter on the keyboard, as otherwise that will be picked as the hotkey assignment). Note that certain choices are not available, as these are already assigned to the OmniTek application, or to the operating system environment. Once a valid hot key has been assigned, it will be indicated above the right hand corner of the layout image. Subsequent presses of the relevant hot key will switch LAB directly into full screen mode into the chosen layout. The list of all assigned hot keys appears on the left of this dialogue. Hot key assignments can also be deleted or changed here.

Window Menu

This menu lets you select a given window, and bring it to the front of the other windows.

About Menu

The About menu shows you what software versions you are running, and shows your license key information. You may need some of this information if you are making a support call to your dealer.

The About menu can always be found at the very right hand edge of the menu bar.

Engineering Controls (part of Configuration menu)

When using OmniTek XR, perhaps the most important controls are the Engineering controls. From here you determine the entire configuration of the system, in terms of what video format to use, video lock reference, etc. Each section of the Engineering menu selection will now be described in detail.

Engineering - Video - General

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Reprogram Flash

At the top of the dialogue box, there is a button called 'Reprogram Flash'. The main video processing on OmniTek products is done using a large FPGA. The firmware for this FPGA may be changed by downloading a new design to the onboard Flash memory. It this way it is possible to improve the video processing remotely. When a new software update is installed, the software should automatically detect the presence of new firmware, and reprogram the flash. This button lets you do the process manually. Note that it is necessary to close all OmniTek applications before reprogramming the flash, so any grabbed images and sequences should be saved first.

Once you have pressed this button, you are prompted for the location of the binary file that will be used to program the flash. Each software release includes several different binary files, and these will always be stored in c:\program files\omnitek\omnitek xr. The correct file to use is ‘alphaflash_cypress.bin’. Once the file is loaded, the flash will be reprogrammed. This operation takes a little over thirty seconds to complete.

Set Video Standard

The current video standard is shown in the box. Clicking the drop down arrow, and selecting from one of the available choices can change it.

Sync Type/Position

If OmniTek XR is to be locked to reference syncs, select either (Analog) Sync (SD), (Analog) Sync (HD) or Serial. SD sync signals are assumed to be bi-level, and HD sync signals are assumed to be tri-level. If OmniTek XR is not going to be locked to external syncs, then select Free. It is perfectly valid to lock to SD syncs whilst working in HD, as long as the format has the same update rates. This is particularly useful if an HD SPG is not available, but you need to use analog reference locking.

If the OmniTek system is used to look at an internally generated pattern using the Motion/Capture option, then it is possible to alter the relative position of the output video with respect to the lock reference by adjusting the horizontal and vertical offset controls.

However, if the OmniTek system is being used to look at a live video source, then the H and V offset controls should both be left at zero, as no real timing control is possible for a live video source. If OmniTek XR is to be used to analyse incoming video, then we recommend that the XR is locked to that incoming serial video.

Monitoring Output

OmniTek XR provides an analog non-broadcast grade monitoring output, on a 9-way mini din socket. The unit will be supplied with a breakout cable, which will either connect this socket to an SVGA connector, or to 5 BNCs, depending on configuration at the time of purchase. The video on this connector may be set to RGB or YPbPr, depending on the Monitor Mode setting. Please note that if the monitor output is connected to an SVGA monitor, then it will be necessary to use the RGB setting. Also note that in some standards, there will be HD video on this connector, which will probably exceed the bandwidth of cheap SVGA monitors. When the standard is set to NTSC or PAL, it is possible to select Composite and Pedestal options for the monitor output. With the standard BNC cable, the composite signal will be on the green BNC connector. In this mode, there is also an S-Video output. The luma channel is on the red BNC, and the chroma channel is on the blue BNC.

The green BNC will have tri-level sync on it.

Note that the analog output will run at the frame rate chosen for the video standard. It is possible that some analog monitors will not be able to lock to some of the frame rates that are available, in particular the very low rates used by the HDSL formats.

Engineering - Video – Generator

This page of the dialogue box is only available if the OmniTek XR system includes the Motion/Capture option.

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The controls relate only to video generated in the Motion/Capture module.

Power on Defaults

‘Power on Defaults’ is used to force the analogue and serial outputs from the OmniTek XR to a chosen video format, within half of one second from power up of the system, and therefore before the operating system has had time to load. The settings will remain in force until the OmniTek XR application has initialized, when the program settings will overwrite the power up settings. To use this feature, just click the button, and the current settings will be written into the reprogrammable hardware on the OmniTek card.

Panning

By selecting enable, and a speed from 1 to 31, it is possible to have the image/sequence continually scroll sideways. Reverse lets you change direction. If you keep ‘enable’ selected, and drop the speed to 0, the image will stop scrolling, and remain at its current position. To return the image to the normal position, clear the ‘enable’ box.

Please note that one side of the image will drop one line during panning, since the image in effect, wraps around from the right hand edge onto the start of the next line, on the left hand edge.

Blanking and Ancillary Data Playout

Under 'Use blanking and ancillary data', select 'from internal generator', to have the audio, video index, wide screen signalling facilities in XR available to insert data onto the output, and remove the entire ancillary data packets from the original source material. This is described in more detail on page 58. Note that this is only available if the Advanced option is present. If this option is not included, then the blanking and ancillary data can only be generated from the internal generator.

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Engineering - Video - Analyzer

OmniTek XR always works with actual video data, which as a 10 bit value will be a number from 0 to 1023. Sometimes it is easier to understand the operation of OmniTek XR if these ranges are scaled to more familiar units. By choosing ‘Preferences’ from the File menu of the main application, you will see some options to change the ‘Amplitude measurement units’ from digital levels to Percent IRE, or to Millivolts. You can also specify the decimal or hexadecimal base when looking at digital levels. The setting on the File menu will affect all of the video values shown on this dialogue.

OmniTek XR detects and count luma/chroma range errors. The exact levels that trigger an error are determined in this dialogue. For range checking, you can specify the minimum and maximum IN RANGE values for luma and each chroma component. Values less than the minimum, or greater than the maximum will be treated as an error. It is possible to detect values within the specified ranges, or outside the ranges, by clicking the ‘YPbPr Polarity outside’ box. Many companies set the minimum value for luma and chroma to 0%, which equates to 64 as a digital video level. The maximum values would normally be set to 100%, which equates to 940 digital video levels for luma, and 960 for the two chroma components.

Similarly, XR detects and counts gamut errors, which are calculated by converting the data into RGB colourspace, and then noting if any pixels are outside the RGB colour cube. Many companies set the minimum gamut value to be -5%, and the maximum to be +105%.

An error mask is also provided. This is used to remove the top and bottom lines, and the pixels near the edges, from the error checking process. This is intended to handle video where the edges near the sync are corrupted. The mask has no other effect on the data, which will still be grabbed, displayed on the waveform views etc, in their entirety.

The mask settings are symmetrical, ie however many lines are specified here, then this number of active lines will be masked out, on both fields, at both the top and bottom of the image. Similarly, the number of pixels entered will effect both picture edges, starting from the end active pixel in each case.

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The settings for luma, chroma or gamut ranges and the error mask may be saved in a profile. Click the save range settings button, and the settings will be saved to a named profile. When OmniTek XR is started, the last used profile is automatically loaded. However, a new profile may be loaded at any time.

As well as detecting errors, this dialogue provides access to a special mode of operation for the vectorscope, the “luma qualified vectorscope”. By using this control, the only pixels that are used to create the vectorscope are those whose luma lies within the range specified for the luma error range checking. This implies it is not possible to use both features at the same time.

However, you can use the luma qualified vectorscope to, for example, only display the vectors for pixels that are nearly black, which can be very useful for colourists.

It is possible to define a ‘Preset’ to enter and exit luma qualified vectorscope mode, which makes this very easy to use. See page 66 for details on defining presets.

Engineering - Video – Dual Link (Option)

If your XR system includes the Dual Link option, there will be an additional page on the Video section, to control Dual Link specific settings.

Since there are two coax cables for dual link, you can set the system to lock off either input, and you can similarly choose to decode ancillary data from either input.

If your dual link signal is in YUV format, the data values are not processed. However, if you are using RGB data, the values can be processed in a lookup table. The linear setting leaves data unchanged. The Logarithmic setting applies a standard log lookup table to the data. Finally, selecting Custom uses your own lookup table. This needs to be loaded in using the ‘Browse’ button, but once it has been loaded, you can switch between it and the other settings without having to reload. Custom lookup tables should be in CSV (comma separated variable) format. LUTs are included with OmniTek XR for Sony SR, and Thomson Viper cameras, and of course these can be modified to create complete custom LUTs. The supplied LUTs are located in program files\omnitek\omnitek xr.

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Finally, a variable level of gamma correction maybe applied to the video.

Note that whilst the lookup table adjusts how the waveforms and vectorscope are displayed, the data shown in the Dataview window is always the exact data contained upon the serial inputs.

If your Dual Link system also includes the optional Motion/capture module, then you can also produce a dual link output from the system. The output can be configured as either single link or dual link. If dual link, then the output can be selected as either YUV or RGB. If you do not have the motion/capture option, then only a single link, YUV format, output is available, regardless of whether the input is dual link or single link.

Engineering – Audio – Error Detection

OmniTek XR has audio peak and silence detection features, which are configured here.

The levels for the peak and silence detector may each be adjusted. Both alarms are only triggered after a set period of time has elapsed. This time interval may be entered in seconds or in frames. These settings are stored as part of an overall system configuration file, and are also saved when the application is closed.

The levels, and the timeout are relevant to the display of audio errors in the audio status box, as well as being used as part of the logging module, and for the SNMP module, both of which are standard with all XR systems.

Note that in conjunction with the Motion/Capture module, XR can generate video test images and sequences. However XR has no specific audio generation facilities.

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Engineering – Picture

OmniTek XR can detect whether the picture is moving or frozen, or whether the picture has gone to black, or to black and white. The settings for the detectors may be configured here.

Motion Content

A level of filtering can be applied to the picture. This is designed to accommodate an analog VTR that is parked on a single frame. The picture will be frozen, but the varying analog noise from the VTR will mean that each frame is actually slightly different. The filter setting removes a certain amount of noise, and the filtered image is then tested

The filtering is actually based on an equivalent noise level. Thus if you have a uniform image, and add -36dB of noise to it, then setting this value to -36dB means that the detector is on the threshold of noting the image as moving, or not. Following on from this, a setting of -6dB will filter out high levels of noise, and a setting of -54dB will only filter out a very tiny amount of noise.

Luma Content

This control works in exactly the same way as the Motion Content control, and detects if the picture is black.

Chroma Content

This control works in exactly the same way as the Motion Content control, and detects if the picture is black and white.

The results of these detectors are displayed in the Video Status window, described from page 48 of this manual. These same detectors may also be used in the logging, or SNMP alerts, described on page 68.

Engineering - Timecode Reader Configuration

All OmniTek XR systems include a VITC and ATC reader.

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ATC is available in SD and HD, but VITC is only read in SD, and it is necessary to configure which lines are to be used to read the timecode data. The typical lines used for PAL and NTSC are shown above.

For ATC, noting that ATC is simply a packet that can contain different types of timecode, it is necessary to specify whether you intend to read LTC, VITC1 or VITC2. Note that the term LTC here refers to LTC data embedded within an ATC packet, not to the older form of LTC transmitted in an analog format.

Engineering - Video Index Reader Configuration

OmniTek XR includes a Video Index reader.

Video Index can only be read in SD.

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