Printed in the United States of America or the United Kingdom. All rights
reserved. This document may not be copied, in whole or in part, or otherwise
reproduced, except as specifically permitted under U.S. copyright law, without
the prior written consent of Tektronix, Inc., P.O. Box 1000, Wilsonville, Oregon
97070-1000.
TEKTRONIX, TEK, and Profile are registered trademarks of Tektronix, Inc.
Windows NT is a registered trademark of Microsoft.
Other trade names used in this document are trademarks or registered
trademarks of the manufacturers or vendors of the associated products.
Tektronix License
Agreement
Profile system software contains intellectual property of Tektronix, Inc., i.e.,
software programs that are licensed for use by the end user consumer. The
terms of the license are contained on the package containing the backup disks,
or a copy may be obtained from your local licensed Tektronix dealer.
Revison Status
Rev DateDescription
April 1999Original issue. Part number 071-0579-00.
The Profile PRO® Series User Manual supports Profile PRO system software
1.1 for the Profile PRO Series video disk recorders as well as other Profile
models. As a result, some of the features and functions described in this manual
are not applicable to the Profile PRO Series.
Profile PRO video disk recorders use digital technology to store and produce
broadcast-quality JPEG and MPEG video and CD-quality audio. This manual
documents the standard and optional software applications that run on the
Profile platform:
• The Profile Configuration Manager configures your hardware for input and
output of video and audio, genlock, and system timing.
• The Media Manager manages clips and masters on disk and in a cartridge
library system.
• The Transcode Utility converts media between different video compression
formats, such as from JPEG to MPEG.
• VdrPanel lets you capture and use JPEG and MPEG video and audio clips.
• The Profile Disk Utility lets you manage the Profile systems media disk
drives.
• The optional Tool Box Editor records media and performs simple, cuts-only
edits. It also allows you to create a sequence of clips called a master.
• The optional List Manager allows you to set up simple station automation.
• TheResourceManager allocatesvideo,audio, andtimecoderesources forthe
Tool Box Editor, the List Manager, and Time Delay.
• TimeDelay, also optional, allows you to delay a video feed by a specific
amount of time.
• Other Profile utilities include Profile Log (via WinTail), ProLink, and
PortServer, among others.
NOTE: This manual assumes that you are familiar with basic
Microsoft Windows operation.
Profile PRO Series15
Preface
Related Documentation
Several manuals related to the Profile PRO User Manual include:
• On-line manuals. You can access on-line help for an application at any time
by choosing
• Profile PRO Series V1.1 Release Notes.
• Profile PRO Series Installation Manual.
• PLS20 Library System Manual.
• PLS200 Library System Manual.
• PRS200/A RAID Storage Instruction Manual.
• PRS250 RAID Storage Instruction Manual.
• PDX103 Disk Expansion Unit Installation Manual.
• PDX208 Disk Expansion Chassis Instruction Manual.
• PRC100 Profile Control Panel User Manual.
• Microsoft Windows NT user documentation.
Help | Help Topics.
16Profile PRO Series
Terminology and Conventions
Button (graphical) Buttons shown in bold (OK, for example) that you click
with the mouse pointer.
Button (mouse)The two or three buttons on the top of the mouse.
Terminology and Conventions
ChoosingChoosing menu items,
means choose the Exit menu item under the File menu.)
CommandsCommands (
ClickingPressing and releasing the mouse button without moving
the pointer.
Ctrl keyHold Ctrl down while pressing other keys in a sequence.
Double-clickingPressing and releasing the left mouse button twice without
moving the pointer.
DraggingPressing and holding the mouse button while moving the
pointer.
MovingChanging the location of the pointer on the screen by
moving the mouse.
PointerAn arrow or other graphic on the screen indicating the
current cursor position for selecting or clicking.
PointingPositioning the pointer on an object on the display by
moving the mouse.
Right-clickPressing and holding the right mouse button.
Shift keyHold Shift down while pressing other keys in a sequence.
a:\setup, for example) are shown in bold.
File | Exit, for example. (File | Exit
Profile PRO Series17
Preface
18Profile PRO Series
Chapter
1
Introducing the Profile PRO Series
TheProfilePRO Series VideoDisk Recorders storebroadcast-quality video and
CD-quality audio on computer disk drives rather than on video tape, allowing
almost instantaccessto any timecode location of yourvideo and audio material.
Table 1 on page 20 compares the capabilities of the PRO II, which used motion
JPEG compression, and the PRO III, which uses MPEG compression.
A Profile PRO disk recorder is more than just a one-for-one replacement of a
VTR: it can have up to two record and two playback video channels. Clips are
available on all channels at once, so you can play a clip on more than one
channel at the same time, without making a copy of it. Since each channel is
independent of the others, each playback can start at a different time and at a
different place in the clip.
You can even start play a clip while it’s still being recorded. Just start capturing
the clip on one channel, wait about five seconds, and then play the clip back on
another channel. This kindofcontrolmakesthe Profile system an ideal solution
if you want to go to air with a clip before you are finished recording it.
The Profile PRO Series disk recorders support these optional products:
• Video Mix/Effects board
• PDX208 Profile Disk Expansion Units
• PAC208 and PAC216 Analog/Digital Audio Interface chassis
• XLR216 and BNC216 Digital Audio Interface chassis
• PRS255 Profile RAID Storage System
• PLS20 Profile Library Systems
• PRC100 Profile Control Panel unit
• LVS100 Live Controller
• CD-ROM Drive
• Profile Tool Box Editor software
• Profile Tool Box List Manager software
• Profile TimeDelay application software
Profile PRO Series19
Chapter 1Introducing the Profile PRO Series
NOTE: Profile PRO Series System Software version 1.1 supports the
PRO II and PRO III. In addition, version 1.1 runs on Microsoft
Windows® NT™ 4.0.
Table 1. Profile PRO II and PRO III features compared
FeaturePRO IIPRO III
Compression
Video I/O
Video Channels
Codecs
Audio Channels
Audio Format
Processor
Protocols
Control
System Software
User Interface
Input
Cables
Manuals
Storage Interface
Internal Storage
JPEG; Up to 24 Mb/sMPEG-2; 4-15 Mb/s; 4:2:0 sampling
Analog and DigitalAnalog and Digital
2 I/O1 in / 2 out
2 bi-directional1 encoder/ 2 decoders
4 channels per video channel4 channels per video channel
Embedded (AES/EBU and Analog
Windows NT 4.0
VDR PanelVDR Panel
Keyboard, MouseKeyboard, Mouse
Power, EthernetPower, Ethernet
Profile User Manual
PRO Series Startup Manual
Release Notes
Ultra-SCSIUltra-SCSI
Standard (3) 18-GB Internal Drives
Total of 48 GB
JPEG @ 24 Mb/s: 4 hours
Optional up to (8) 18-GB Internal Drives
Total of 128 GB
JPEG @ 24 Mb/s: 10.5 hours
Embedded (AES/EBU and Analog
optional)
RS-422 (4 ports)
Ethernet 10/100 BaseT
PRO Series System Software
Windows NT 4.0
Profile User Manual
PRO Series Startup Manual
Release Notes
Standard (3) 18-GB Internal Drives
Total of 48 GB
MPEG @ 8 Mb/s: 10.2 hours
Optional up to (8) 18-GB Internal Drives
Total of 128 GB
MPEG @ 8 Mb/s: 27.3 hours
20Profile PRO Series
A Profile PRO System Overview
The Profile PRO Series are multichannel digital video disk recorders. The
PRO II supports two play/record channels (codecs) of continuously variable
motion JPEG video compression. The PRO III supports MPEG 4:2:0 video
compression, with one record channel (encoder) and two playback channels
(decoders). Each channel can play back one video and up to 4 audio signals,
each capable of using different video formats. In other words, one PRO Series
unit can replace the functionality of up to two VTRs, with the added benefit of
random access to video and audio data stored on disk.
The Profile PRO system has an EISA motherboard with an internal digital
video routing system. There are sixteen EISA slots and one ISA slot used for
interface cards and routing audio data. The PRO III also uses a PCI bus for
routing data between the master enhanced disk recorder (EDR) board and
MPEG board.
A video routerchipset is integrated on the mother board. It routesvideosignals
between the video disk system, video mix effects cards, and video I/O cards.
The video router is a 32 x 32 crosspoint matrix capable of full bandwidth 4:2:2
CCIR 601 8-bit digital video. The video router allows real-time transfer of
video throughout the system without impacting overall system performance.
The video router also makes possible simultaneous record and playback on
separate channels.
A block diagram showing the hardware layout of the PRO Series is shown in
Figure 1 on page 24.
A Profile PRO System Overview
Video Disk Subsystem
In the video disk subsystem, video data is compressed and written to an array
of disks, and then read from these disks and decompressed. This video data is
read from and written to the video router in 8-bit, parallel component digital
video format. The video disk subsystem has enhanced disk recorder boards,
with an Intel i960 real-time processor and a SCSI-2 interface to the disks.
The video disk subsystem uses a master enhanced disk recorder (EDR) board.
The master board has an Intel i960 real-time processor that controls
compression on the two-channel JPEG codec or the MPEG encoder and
decoder board, which is connected to the master via a PCI interconnect board.
The processor also controls the data flows on the master board’s two SCSI-2
channels. The bidirectional JPEG codec channels allow channels to be
configured for recording or playback.
Profile PRO Series21
Chapter 1Introducing the Profile PRO Series
Video Compression
The i960 on the master board is used to control data flow and compression
coefficient loading of the JPEG codecs or, if present, MPEG encoders and
decoders. The amount of JPEG video compression varies according to the
settingofthe compression coefficient;the amount ofMPEG video compression
varies according to the bit rate. Higher compression ratios or bit rates store
more video, but the result is lower quality video. On the other hand, lower
compression ratios or bit rates result in higher quality video and less storage
capacity. Audio, however, is not compressed.
Since the video compression ratio can be varied to change the video quality
given available storage time, the amount of storage depends on your choice of
compression ratio. A quick rule of thumb is that five minutes of JPEG
video—plus four channels of audio and two channels of timecode—is roughly
equal to one gigabyte of disk storage at 50,000 bytes per field in the 525
standard video format. For example, a PDX218 Disk Expansion unit expands
storage up to twelve hours and using multiple PRS255 RAID Storage Systems
can bringit up to approximately 96hours.For video stored in theMPEG format
at an average 12 Mbps, you can just about double these capacities.
MPEG usesmotionprediction to increase efficiency—essentially, it useslower
data rates because it does not duplicate video that does not change from frame
to frame. MPEG accomplishes this through both backward and forward
prediction. To do this, it uses GOPs, consisting of I-frames, P frames and
B frames.
An I-frame (also knownasanI-pictureor Intra-picture) is analogous to a single
motion JPEG frame, where all data required to display a frame is stored in one
picture. A P picture (also called a predictive picture) uses a motion vector to
predict what will happen in the next frame and contains only the changed data,
rather than passing along another complex frame of video. In addition, a
B picture (known also as a bidirectional picture) relies on data from both
backward and forward motion vectors to determine how a future frame will be
composed.Ingeneral, the longer theGOP, the more efficientyour MPEG video
stream will be.
In addition to video compression, the disk recorder boards also integrate the
digital audio data coming from the EISA bus, with up to four channels of audio
per channel of video. These recorder boards communicate with the SCSI-2
interface using a Direct Memory Access (DMA) interface. The Profile PRO
22Profile PRO Series
Series also supports the audio signal processing board (ASPB). This board is
capable of delivering 16 channels of analog, embedded digital, or AES/EBU
digital audio.
Video and Audio Interface Boards
Video and audio interface boards receive incoming and send outgoing video
and audiodata. These boards are responsiblefor converting the video andaudio
to internal formats used by the video server.
The Profile PRO Series comes with the Audio Signal Processing board
(ASPB). This audio architecture accepts and simultaneously processes sixteen
audio inputs and outputs. Internally, all audio is processed with a selectable
resolution of 16 or 20 bits, then stored as 16-bit audio. Inputs may be
individually clocked in groups of four, and any clock group may be referenced
to the system reference (house black) or any one of four video inputs. Output
clocking is synchronous to system reference. Sample rate conversion is
available for all inputs (30 to 50kHz), providing uniform storage at 48kHz.
You can configure the PRO Series tooperatewithanalog,AES/EBU digital, or
embedded (SMPTE 272M Level A) audio, depending on which options are
installed in yoursystem.Allthree audio formats are supported without external
conversion equipment. Analog audio is only available with an optional
PAC208or PAC216Analog/Digital Interface chassis. You can specify the use
of XLR or BNC connectors for AES/EBU audio with an optional XLR216 or
BNC216 Digital Interface chassis. You can choose an audio format for each
videochannel.For example, youcould enable analogaudioon one channel,and
embedded audio or AES/EBU on the other.
Two video boards allow the PRO series to be used with the composite analog
and serialdigitalcomponent video formats, both ofwhichare standard formats.
Both boards accept 525 or 625 (NTSC or PAL) video standards.
The analog composite input and output board offers two input and output
channels per board.
A serial digital component board provides two channels of both input and
output, plus embedded audio when used with an ASPB. You can also enable
dithering, auto-timing, and automate VITC detection. The board also has error
detection and handling.
Video and Audio Interface Boards
Profile PRO Series23
Chapter 1Introducing the Profile PRO Series
The standard reference genlock board allows you to time your PRO Series
video disk recorder tootherdevicesina broadcast facility. You can lock a PRO
Series unit to a PAL or NTSC reference signal (house black). The genlock
board also lets you have LTC inputs and outputs, withoneinputandoneoutput
possible for each channel.
Notes:
Indicates optional board
MPEG Encoder/Decoder is
*
available only in the PRO III.
JPEG CODECs is available
**
only in the PRO II.
Figure 1. The PRO II/PRO III block diagram
Networking
• RS-422 port
• Ethernet LAN I/O
MPEG
4:2:0*
Encoder/
Decoder
SCSI Devices
PCI Bus
0579-1
Applications Processor
Subsystem
•
Intel Pentium Processor
EISA Bus
Enhanced
Master Recorder
• Intel i960 real-time
processor
• 2 JPEG CODECs
• Ultra SCSI-2
**
32 x 32 CCIR 601
Video Router and Clocks
Digital
Audio I/O
Video I/O
• Analog Composite
• SDI w/Embed. Audio
Analog
Audio I/O
(External Chassis)
Mix
Effects
Genlock
Board
Ref.
Clocks
24Profile PRO Series
Profile Software Development
The Profile Software Development Kit (SDK) provides an application
programming interface (API) for libraries of Profile functions. We recommend
that you call these functions via Microsoft Visual C++ 5.0; however, it is
possible to use other languages that permit calls to C declared functions
(contact your Tektronix representative for more information). Software
developers can use the API to control the Profile from third-party hardware
devices, for example. The API consists of seven libraries:
• The TekCfg library provides an interface to the Profile configuration.
• The TekPdr library furnishes calls that inventory and manage movies in
Common Movie Format (CMF), an internal file format standard for video,
audio, and timecode.
• The TekRem library makes it possible for a remote Windows NT system to
control a Profile disk recorder over an Ethernet LAN.
• The TekVdr library provides an interface for playing and recording video
and audio clips.
• The TekVfs librarysupportslow-levelaccess to individual media files in the
media file system.
Profile Software Development
• The TekVme library controls the optional video mix effects board.
Four RS-422 serial ports come standard on a disk recorder. A disk recorder can
issue serial commands or receive them from an external device via RS-422
communication lines. The Profile Protocol associates each API call with a
specific number that can be sent over an RS-422 line. The ProLink application
monitors Profile Protocol calls over an RS-422 link, allowing you to use
compatible hardware devices, such as the PRC100 Control Panel, to issue
commands to a Profile unit.
Windows applications are also available to control the Profile system. Your
disk recorder comes with several standard and optional applications. See
“Starting and Closing Profile Applications” on page 28 for more information.
NOTE: Louth and Odetics RS-422 protocols are also supported,
although there is not a one-to-one correspondence between these
protocols and the Profile API. Louth and Odetics protocols do not
allow you full access to the functionality of the Profile system.
Profile PRO Series25
Chapter 1Introducing the Profile PRO Series
What to Read First
The orderinwhich you should read thechaptersof this manual depends onhow
you want to set up your Profile PRO system.
• Before using your Profile PRO unit, you must first configure your video and
audio boards. Refer to Chapter 2, “Using the Profile Configuration
Manager.”
• Once you have configured your video and audio boards, and, if necessary
rebuilt your file system, you are ready to capture and replay video and audio
clips. Refer to Chapter 4, “Using VdrPanel.”
• To read Profile logs, access your Profile PRO system from a remote PC, or
attach a PRC100 Profile Control Panel; refer to Chapter 6, “Using Profile
Utilities.”
• To learn how to manage media on disk, see Chapter 3, “Using Media
Manager.”
• If want to use optional software applications, see Chapter 7, “Using the Tool
Box Editor,” Chapter 8, “Using the List Manager,” or Chapter 10, “Using
TimeDelay.” To allocate resources for Tool Box Editor, List Manager, and
TimeDelay, see Chapter 9, “Using the Resource Manager.”
26Profile PRO Series
Starting Your Profile PRO Disk Recorder
Starting Your Profile PRO Disk Recorder
Once the unit is properly installed, you are ready to log in. For instructions on
how to install and power-on a Profile PRO disk recorder, see the installation
manual that came with the unit.
To log in automatically:
Power up the Profile PRO disk recorder, and the start up routine begins.
During normal start up, you are logged in automatically and the Quick Start
application opens. You can hold down the
interrupt the automatic log in process.
NOTE: Ifyoustoptheautomatic log in, or if it fails, the WindowsNT
log in dialog box appears. When logging in, remember that this
dialog box is case-sensitive.
To manually log in:
Shift key during start up to
1. At the Windows NT 4.0 log in window, enter the username:
(However, you must log in as administrator when installing software,
performing Windows NT administration, starting a service, or setting an
Ethernet IP address.)
2. Use the Tab key to advance to the password field.
3. The password appears as asterisks (*) for password security. For the
password, enter:
4. Use the Tab key to advance to the From field.
5. If your domain name or local computer name is not displayed in the box,
click in the box to access a list of choices. Select your domain or local
computer name from the list.
6. Click
OK or press Enter.
NOTE: If a log in error message appears, and all the information is
correct, try deleting the password and clicking
profile
OK.
profile
Profile PRO Series27
Chapter 1Introducing the Profile PRO Series
Starting and Closing Profile Applications
After logging into your Profile PRO system, you see shortcut icons for the
Profile applications on the Windows NT 4.0 desktop.
Figure 2. PDR Application shortcuts on the Windows NT 4.0 desktop
28Profile PRO Series
Starting an Application
To start a Profile application—VdrPanel in these examples—using Windows
NT 4.0:
• Double-click the shortcut icon on the Windows NT desktop.
Or:
Starting an Application
• Choose
Or:
• Choose
Start | VdrPanel.
Start | Programs | PDR Applications | VdrPanel.
Viewing Help
To view the Help for an application:
• Choose
Or:
• Click the
To view version information (for VdrPanel in this example):
• Choose
Help | Help Topics.
Help button in a dialog box or a toolbar, if available.
Help | About VdrPanel.
Closing an Application
To close Profile applications:
• Choose
File | Quit, File | Exit or click the Close button.
Profile PRO Series29
Chapter 1Introducing the Profile PRO Series
NOTE: Ifyoudon’tconfiguresystem resources with QuickStart, you
must use Configuration Manager to configure resources before
using your PRO Series video disk recorder.
Profile Configuration
Manager
The Profile Configuration
Manager is a graphical user
interfacefor configuringreference
genlock, system timing,videoand
audioinputs andoutputs. Formore
information, refer to Chapter 2,
“Using the Profile Configuration
Manager.”
Media Manager
The Media Manager allows you to
manage clips and masters on disk. Refer
to Chapter 3, “Using Media Manager.”
30Profile PRO Series
Transcode Utility
The Transcode Utility, which is started from
Media Manager, can change the video quality
of a clip. Refer also to Chapter 3, “Using
Media Manager.”
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