Tektronix Option 1A, 1G, AG MTS215 User Manual

User Manual

MPEG Test System MTS 210 Options 1A, 1G, and AG MTS215 Deferred-Time Applications

071-0078-00

This document supports software version 2.2

Copyright  T ektronix, Inc. All rights reserved. Licensed software products are owned by Tektronix or its suppliers and are protected by United States copyright laws and international treaty provisions.

Use, duplication, or disclosure by the Government is subject to restrictions as set forth in subparagraph (c)(1)(ii) of the Rights in T echnical Data and Computer Software clause at DFARS 252.227-7013, or subparagraphs (c)(1) and (2) of the Commercial Computer Software – Restricted Rights clause at F AR 52.227-19, as applicable.

T ektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved.

Microsoft, MS, MS-DOS, Windows, Windows NT, and Win 32 are registered trademarks of Microsoft Corporation. HASP is a registered trademark of Aladdin Knowledge System Ltd. Matra is a trademark of Matra Communication Printed in the U.S.A. T ektronix, Inc., P.O. Box 1000, Wilsonville, OR 97070–1000 TEKTRONIX and TEK are registered trademarks of T ektronix, Inc.

WARRANTY

T ektronix warrants that this product will be free from defects in materials and workmanship for a period of one (1) year from the date of shipment. If any such product proves defective during this warranty period, T ektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packaging and shipping the defective product to the service center designated by T ektronix, with shipping charges prepaid. T ektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the T ektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. T ektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than T ektronix representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; or c) to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUST OMER FOR BREACH OF THIS WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT , SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

Getting Started

Operating Basics

General Safety Summary xiii. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Preface xv. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Product Description 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview 1–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Applications 1–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Accessories 1–5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Installation 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Assembling the Test System 1–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

MTS 210 I/O 1–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Cables and Mating Connectors for Data Store Inputs/Outputs 1–17. . . . . . . . . . . . . .

Adapters 1–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

First Time Operation 1–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Logging In 1–19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Initial Window 1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Additional Support 1–20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Basics 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Running the Software 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tutorials and Reference Sections 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Acquiring Elementary Bit Stream Files 2–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tutorial: Analyze a Signal 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Terms 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Help 2–7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting the Analyzer Application 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Opening an Existing Transport Stream File 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Hierarchic View 2–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Additional Information from the TS Icon 2–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Additional Information from the Transport Packet Icon 2–19. . . . . . . . . . . . . . . . . . .

Additional Information from the PAT Icon 2–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Additional Information from the PMT Icon 2–23. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Additional Information from the PES Packet Icon 2–30. . . . . . . . . . . . . . . . . . . . . . .

Viewing PSI/SI Data 2–36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Automatic Analysis 2–38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Quitting the Analyzer 2–43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tutorial: Creating an MPEG-2 Transport Stream 2–45. . . . . . . . . . . . . . . .

Terms 2–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Start the Multiplexer 2–45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Making a Simple Transport Stream File 2–46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Making a Complex Transport Stream File 2–60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Sending a Transport Stream 2–75. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tektronix MPEG Test System User Manual

Table of Contents

Reference

Tutorial:

Creating Transport Stream Files with DVB Information 2–83. . . . . . .

Using the Analyzer 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview 3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T erms 3–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Analyzer Application Window 3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Opening a File 3–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Hierarchic View 3–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Interpreted View 3–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hexadecimal and Binary Views 3–21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Multiplex Analyses 3–22. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Check CRC 3–24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Syntax Analysis 3–25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Consistency Check 3–26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

PSI/SI Rate Analysis 3–29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Timing Analyses 3–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Semantic Analysis 3–37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Dynamic Analysis 3–38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Automatic Analysis 3–44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Filters 3–46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Extracting and Saving Stream Elements 3–53. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Options Menu 3–55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the Multiplexer 3–59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview 3–59. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting the Multiplexer 3–61. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Application Window 3–62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Hierarchic View 3–67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Dynamic View 3–71. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Multiplexer Environment 3–73. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Creating and Editing a Configuration File 3–79. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Generating a Multiplex 3–98. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

An Example Configuration File 3–99. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the PSI and SI Table Editor 3–103. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Edit Table Application Window 3–104. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T able File Operations 3–110. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T able Sections 3–113. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Coherence Analysis 3–115. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Adding T able Items 3–116. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T able Item Parameters 3–120. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Learning More About T able Items 3–146. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Global View 3–148. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Creating Files with Complex Associations (Tutorial) 3–150. . . . . . . . . . . . . . . . . . . . .

Using the Data Store Administrator 3–161. . . . . . . . . . . . . . . . . . . . . . . . . . .

Terms 3–161. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Special Features of the Data Store Disks 3–162. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting the Application 3–163. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

The Application Window 3–164. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menus 3–165. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T oolbar Command Buttons 3–166. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Tektronix MPEG Test System User Manual

Appendices

Table of Contents

Using File Menu Commands 3–167. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using Acq/Gen Menu Commands 3–171. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using Service Menu Commands 3–179. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Changing MSB/LSB Order 3–183. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T est System to Test System Transfers 3–184. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Problems 3–185. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the Packet Jitter Application 3–189. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Application 3–189. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T erms 3–189. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Starting the Packet Jitter Application 3–190. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menu Commands 3–190. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

T oolbar 3–197. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using DVB Channel Coding & Decoding 3–199. . . . . . . . . . . . . . . . . . . . . . .

Starting the Application 3–200. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Menu Commands 3–201. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Coding 3–214. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix A: Specifications A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Performance Conditions A–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Hardware Electrical Specifications A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Power Specifications A–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mechanical (Physical) Characteristics A–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Environmental Characteristics A–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix B: What to Do if an Application Locks Up B–1. . . . . . . . . . . . .

Appendix C: Software Repair C–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Creating and Using an Emergency Repair Disk C–1. . . . . . . . . . . . . . . . . . . . . . . . .

Reinstalling the MTS 210 Software C–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Files Included with the MTS 210 Version 2.2 C–14. . . . . . . . . . . . . . . . . . . . . . . . . . .

Update for v2.2 (list is for v2.1) C–14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix D: Analyzer Tests D–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compliance at the Transport Stream Level D–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compliance at the PES Packet Level D–6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compliance at the PSI level D–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Compliance for the Descriptors D–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix E: Functional Check E–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Required Equipment E–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Procedure E–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Appendix F: Repackaging F–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Glossary Index

Tektronix MPEG Test System User Manual

iii

Table of Contents

List of Figures

Figure 1–1: The rear panel of the MTS210 server 1–9. . . . . . . . . . . . . . .

Figure 1–2: MTS210 HASP 1–11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 1–3: The MTS 210 signal I/O ports 1–12. . . . . . . . . . . . . . . . . . . . . .

Figure 2–1: Starting the MPEG-2 Help utility 2–7. . . . . . . . . . . . . . . . . . .

Figure 2–2: Starting the Analyzer 2–8. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–3: The Analyzer application window 2–8. . . . . . . . . . . . . . . . . . .

Figure 2–4: Command buttons on the upper toolbar 2–9. . . . . . . . . . . . .

Figure 2–5: Command buttons on the lower toolbar 2–10. . . . . . . . . . . . . .

Figure 2–6: Using the status bar 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–7: The Open dialog box 2–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–8: The hierarchic view of the SAMPLE.TRP stream 2–11. . . . .

Figure 2–9: Hierarchic view shortcut menus 2–13. . . . . . . . . . . . . . . . . . . .

Figure 2–10: The TS icon shortcut menu 2–13. . . . . . . . . . . . . . . . . . . . . . .

Figure 2–11: The interpreted view of the first transport packet 2–14. . . . .

Figure 2–12: Command buttons on the lower toolbar 2–14. . . . . . . . . . . . .

Figure 2–13: Double-click for an explanation of the field 2–15. . . . . . . . . .

Figure 2–14: Help information for the packet field value 2–15. . . . . . . . . .

Figure 2–15: Press F2 to toggle numeric base 2–16. . . . . . . . . . . . . . . . . . . .

Figure 2–16: The View Type submenu 2–16. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–17: Hexadecimal view of a transport packet 2–16. . . . . . . . . . . .

Figure 2–18: The TS icon shortcut menu 2–17. . . . . . . . . . . . . . . . . . . . . . .

Figure 2–19: The PID map of SAMPLE.TRP packets 1 to 100 2–17. . . . .

Figure 2–20: The Multiplex Allocation document window 2–18. . . . . . . . .

Figure 2–21: Double-click on the PID 21 icon 2–19. . . . . . . . . . . . . . . . . . .

Figure 2–22: Interpreted view of the first PID 21 transport packet 2–19. .

Figure 2–23: The last PID 21 packet in SAMPLE.TRP 2–20. . . . . . . . . . . .

Figure 2–24: The View Type submenu 2–20. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–25: The binary view of PID 21 item 14 2–21. . . . . . . . . . . . . . . . .

Figure 2–26: The PAT icon shortcut menu 2–21. . . . . . . . . . . . . . . . . . . . . .

Figure 2–27: The PAT section interpreted view 2–22. . . . . . . . . . . . . . . . . .

Figure 2–28: The CRC Analysis dialog box 2–22. . . . . . . . . . . . . . . . . . . . .

Figure 2–29: The PMT shortcut menu 2–23. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–30: The PMT interpreted view 2–23. . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–31: Choosing Syntaxic from the Analysis menu 2–24. . . . . . . . . .

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Figure 2–32: The Syntax Analysis message window 2–24. . . . . . . . . . . . . .

Figure 2–33: A message window listing syntax errors 2–25. . . . . . . . . . . . .

Figure 2–34: Choosing Check CRC from the Analysis menu 2–25. . . . . . .

Figure 2–35: CRCs in all sections are correct 2–26. . . . . . . . . . . . . . . . . . . .

Figure 2–36: The PMT shortcut menu 2–26. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–37: The PCR analysis display 2–26. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–38: Double-click on the clock icon to list clock values 2–27. . . . .

Figure 2–39: The PCR View Type submenu 2–27. . . . . . . . . . . . . . . . . . . . .

Figure 2–40: The PCR values display 2–28. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–41: Visual TSTD and LTW selected 2–28. . . . . . . . . . . . . . . . . . . .

Figure 2–42: Choosing T-STD Analysis from the shortcut menu 2–29. . . .

Figure 2–43: The T-STD Buffering Simulation window 2–29. . . . . . . . . . .

Figure 2–44: The T-STD error list 2–30. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–45: The drop-down menu for the PES icon 2–30. . . . . . . . . . . . .

Figure 2–46: The PES packet interpreted view 2–31. . . . . . . . . . . . . . . . . .

Figure 2–47: The PES Packet with the errors circled 2–31. . . . . . . . . . . . .

Figure 2–48: Double-click for information about the field 2–32. . . . . . . . .

Figure 2–49: Double-click for information for the field value 2–32. . . . . .

Figure 2–50: The PID 50 PES shortcut menu 2–33. . . . . . . . . . . . . . . . . . . .

Figure 2–51: The PTS/DTS diagram 2–33. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–52: PTS/DTS diagram from a correctly encoded stream 2–34. .

Figure 2–53: Information about the first arrival time 2–35. . . . . . . . . . . . .

Figure 2–54: Information about the first access unit 2–36. . . . . . . . . . . . . .

Figure 2–55: The check mark indicates that DVB is selected 2–36. . . . . . .

Figure 2–56: The PSI/SI Selection dialog box 2–37. . . . . . . . . . . . . . . . . . . .

Figure 2–57: The NIT section interpreted view 2–37. . . . . . . . . . . . . . . . . .

Figure 2–58: Double-click for an ASCII decode of the descriptor 2–38. . .

Figure 2–59: The automatic analysis Options dialog box 2–39. . . . . . . . . .

Figure 2–60: The automatic analysis window 2–40. . . . . . . . . . . . . . . . . . . .

Figure 2–61: Double-click for error details 2–40. . . . . . . . . . . . . . . . . . . . . .

Figure 2–62: The list of syntax errors found in SAMPLE.TRP 2–41. . . . .

Figure 2–63: Interpreted view of a PES packet with syntax errors 2–41. .

Figure 2–64: The Multiplexer application window 2–46. . . . . . . . . . . . . . .

Figure 2–65: The New configuration file dialog box 2–46. . . . . . . . . . . . . .

Figure 2–66: The default configuration in the application window 2–47. .

Figure 2–67: The Stream to Add dialog box 2–50. . . . . . . . . . . . . . . . . . . . .

Figure 2–68: The hierarchy with a video icon added to program 1 2–50. . Figure 2–69: The hierarchy with the audio and data icons added 2–51. . .

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Figure 2–70: The Video Stream dialog box 2–51. . . . . . . . . . . . . . . . . . . . . .

Figure 2–71: The Video Stream Selection dialog box 2–52. . . . . . . . . . . . .

Figure 2–72: Click OK and select another (.mp2) file 2–52. . . . . . . . . . . . .

Figure 2–73: Details of the selected video elementary stream 2–53. . . . . . .

Figure 2–74: The display after a video file is associated 2–54. . . . . . . . . . .

Figure 2–75: The Audio Stream dialog box 2–54. . . . . . . . . . . . . . . . . . . . .

Figure 2–76: The Audio Stream Selection dialog box 2–55. . . . . . . . . . . . .

Figure 2–77: Details of the selected audio elementary stream 2–55. . . . . .

Figure 2–78: The display after an audio file is associated 2–56. . . . . . . . . .

Figure 2–79: The Data Stream dialog box 2–57. . . . . . . . . . . . . . . . . . . . . .

Figure 2–80: Click Yes to delete the data stream icon 2–57. . . . . . . . . . . . .

Figure 2–81: The hierarchy with the Data icon deleted 2–58. . . . . . . . . . . .

Figure 2–82: The Multiplex Output File dialog box 2–59. . . . . . . . . . . . . .

Figure 2–83: Transport stream creation is complete 2–60. . . . . . . . . . . . . .

Figure 2–84: The hierarchy with programs 2 and 3 added 2–61. . . . . . . . .

Figure 2–85: Elementary streams added to program 2 2–62. . . . . . . . . . . .

Figure 2–86: The rate gauge shows an overflowed multiplex 2–62. . . . . . .

Figure 2–87: The dynamic view of the complex.cfg configuration file 2–63 Figure 2–88: The Program Parameters dialog box for program 2 2–64. . . Figure 2–89: The dynamic view after you delay programs 2 and 3 2–64. .

Figure 2–90: Moving the timing cursor 2–65. . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–91: The timing cursor is in the space between the programs 2–66

Figure 2–92: The default PSI Period dialog box 2–66. . . . . . . . . . . . . . . . .

Figure 2–93: The PSI period is changed to 0.01 seconds 2–67. . . . . . . . . . .

Figure 2–94: The configuration file after changing the PSI period 2–67. .

Figure 2–95: The Program Specific Information dialog box 2–68. . . . . . . .

Figure 2–96: PID Modification dialog box 2–68. . . . . . . . . . . . . . . . . . . . . .

Figure 2–97: The Edit Table application with complex.pmt loaded 2–69. .

Figure 2–98: Section 2 (program 2) of the PMT 2–70. . . . . . . . . . . . . . . . . .

Figure 2–99: The Descriptors Selection dialog box 2–71. . . . . . . . . . . . . . .

Figure 2–100: Registration selected 2–71. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 2–101: A registration descriptor added to PMT section 2 2–72. . . .

Figure 2–102: The information for the Video Stream descriptor field 2–72

Figure 2–103: The descriptor at the Elementary Stream level 2–73. . . . . .

Figure 2–104: The complex.cfg after table editing 2–74. . . . . . . . . . . . . . . .

Figure 2–105: The Multiplex Output File dialog box 2–75. . . . . . . . . . . . .

Figure 2–106: The Data Store Administrator application window 2–76. .

Figure 2–107: Find the command under the File menu 2–77. . . . . . . . . . .

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Figure 2–108: The File Write to CARB dialog box 2–77. . . . . . . . . . . . . . .

Figure 2–109: The Windows NT 4.0 Open dialog box 2–77. . . . . . . . . . . . .

Figure 2–110: The dialog box with a file selected 2–78. . . . . . . . . . . . . . . . .

Figure 2–111: Click OK to acknowledge data transfer 2–78. . . . . . . . . . . .

Figure 2–112: The Generation dialog box 2–79. . . . . . . . . . . . . . . . . . . . . . .

Figure 2–113: The dialog box with all parameters entered 2–80. . . . . . . . .

Figure 2–114: Transport stream generation in progress 2–80. . . . . . . . . . .

Figure 2–115: Transport stream generation is finished 2–81. . . . . . . . . . . .

Figure 3–1: How the data store disks manage their files 3–162. . . . . . . . . . .

Figure 3–2: Starting the Data Store Administrator 3–163. . . . . . . . . . . . . . .

Figure 3–3: The Data Store Administrator application window 3–164. . . .

Figure 3–4: The FAT Information display 3–167. . . . . . . . . . . . . . . . . . . . . .

Figure 3–5: The File Read from CARB dialog box 3–168. . . . . . . . . . . . . . .

Figure 3–6: The Save As dialog box 3–168. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–7: The File Write to CARB dialog box 3–169. . . . . . . . . . . . . . . . .

Figure 3–8: Selecting a file to delete 3–170. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–9: The Warning dialog box 3–170. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–10: The last file is removed immediately 3–171. . . . . . . . . . . . . . . .

Figure 3–11: Selecting a file to undelete 3–171. . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–12: The ACQUISITION dialog box 3–172. . . . . . . . . . . . . . . . . . . .

Figure 3–13: Examples of the Interface group 3–173. . . . . . . . . . . . . . . . . . .

Figure 3–14: Examples of the Synchronization group 3–174. . . . . . . . . . . . .

Figure 3–15: Examples of the Control Port group 3–175. . . . . . . . . . . . . . . .

Figure 3–16: The Generation dialog box 3–177. . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–17: The Resource Parameters dialog box 3–180. . . . . . . . . . . . . . .

Figure 3–18: The Partitioning dialog box 3–181. . . . . . . . . . . . . . . . . . . . . . .

Figure 3–19: The Compress confirmation dialog box 3–181. . . . . . . . . . . . .

Figure 3–20: The Disks Motor control submenu 3–182. . . . . . . . . . . . . . . . .

Figure 3–21: Specifying automatic motor control parameters 3–182. . . . . .

Figure 3–22: The Msb first option 3–183. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–23: Starting the Set CARB application 3–183. . . . . . . . . . . . . . . . .

Figure 3–24: The Data Store Setup window 3–184. . . . . . . . . . . . . . . . . . . . .

Figure 3–25: The Multiplex Transport File dialog box 3–191. . . . . . . . . . . .

Figure 3–26: The List of Programs window 3–191. . . . . . . . . . . . . . . . . . . . .

Figure 3–27: The PCR Clock Selection dialog box 3–192. . . . . . . . . . . . . . . .

Figure 3–28: The Jitter Type dialog box 3–193. . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–29: Illustration of the square jitter function 3–194. . . . . . . . . . . . .

Figure 3–30: Illustration of the sine jitter function 3–194. . . . . . . . . . . . . . .

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Figure 3–31: The Output File dialog box 3–195. . . . . . . . . . . . . . . . . . . . . . .

Figure 3–32: The display during jitter calculation 3–196. . . . . . . . . . . . . . . .

Figure 3–33: PCR analysis of a “jittered” transport stream file 3–197. . . .

Figure 3–34: The initial Coding/Decoding application window 3–200. . . . .

Figure 3–35: The Coding Chain dialog box 3–202. . . . . . . . . . . . . . . . . . . . .

Figure 3–36: The Open dialog box for the Chain command 3–203. . . . . . . .

Figure 3–37: The Energy Dispersal Open dialog box 3–204. . . . . . . . . . . . .

Figure 3–38: The Reed Solomon dialog box 3–205. . . . . . . . . . . . . . . . . . . . .

Figure 3–39: The Reed-Solomon Configuration dialog box 3–205. . . . . . . .

Figure 3–40: The Open dialog box for Interleaver coding 3–206. . . . . . . . .

Figure 3–41: The Viterbi dialog box 3–207. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–42: The Open dialog box for Viterbi coding 3–207. . . . . . . . . . . . .

Figure 3–43: The Decoding Chain dialog box 3–208. . . . . . . . . . . . . . . . . . . .

Figure 3–44: The Open dialog box for the Deinterleaver 3–209. . . . . . . . . .

Figure 3–45: The Open dialog box for Reed-Solomon decoding 3–210. . . .

Figure 3–46: The Open dialog box for Energy Dispersal Removal 3–210. .

Figure 3–47: The Save As dialog box for the Pattern command 3–211. . . .

Figure 3–48: Enter the number of bytes in the pattern 3–212. . . . . . . . . . . .

Figure 3–49: The Composition Motif 3–212. . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–50: Set the number of pattern repetitions 3–212. . . . . . . . . . . . . . .

Figure 3–51: The Transport Packets dialog box 3–213. . . . . . . . . . . . . . . . . .

Figure 3–52: The Number of Packets dialog box 3–213. . . . . . . . . . . . . . . . .

Figure 3–53: The Save As dialog box 3–214. . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure 3–54: The MPEG-2 Transport packet 3–214. . . . . . . . . . . . . . . . . . . .

Figure 3–55: The Scrambler/Descrambler schematic for the PRBS 3–215.

Figure 3–56: The output after Energy Dispersal coding 3–215. . . . . . . . . . .

Figure 3–57: The transport packet after Reed-Solomon coding 3–216. . . . .

Figure 3–58: The conceptual diagram of the Interleaver coder 3–216. . . . .

Figure 3–59: The Interleaved transport packets 3–217. . . . . . . . . . . . . . . . .

Figure 3–60: Viterbi 1/2 Punctured coding 3–217. . . . . . . . . . . . . . . . . . . . . .

viii

Figure A–1: Pulse specification for a G.703 8.448 MHz pulse A–3. . . . . .

Figure A–2: Pulse specification for G.703 34.368 MHz A–5. . . . . . . . . . . .

Figure A–3: Timing diagram for the ECL serial port A–8. . . . . . . . . . . . .

Figure A–4: ECL Timing diagram with control port A–9. . . . . . . . . . . . .

Figure A–5: Timing for the TTL port and the separate clock input A–10.

Figure A–6: Timing diagram for the 10 Mbit Serial port A–11. . . . . . . . . .

Figure C–1: The Repair Disk dialog box C–2. . . . . . . . . . . . . . . . . . . . . . . .

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Figure C–2: All data on the disk will be erased C–2. . . . . . . . . . . . . . . . . .

Figure C–3: Uninstall the software C–4. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure C–4: The MTS210 software installation dialog box C–5. . . . . . . .

Figure C–5: Specifying the destination directory C–6. . . . . . . . . . . . . . . . .

Figure C–6: Select RTA BOARD only for the MTS 215 C–6. . . . . . . . . . .

Figure C–7: Select the Data Store board configuration C–7. . . . . . . . . . .

Figure C–8: The Select Program Folder dialog box C–7. . . . . . . . . . . . . . .

Figure C–9: Specify the Data Store slot C–8. . . . . . . . . . . . . . . . . . . . . . . .

Figure C–10: Specify the RTA slot (MTS 215 only) C–8. . . . . . . . . . . . . . .

Figure C–11: The progress dialog box and activity gauges C–9. . . . . . . . .

Figure C–12: Check HASP installation C–9. . . . . . . . . . . . . . . . . . . . . . . . .

Figure C–13: The Restart Windows NT dialog box C–10. . . . . . . . . . . . . . .

Figure C–14: Choose Taskbar from the Settings submenu C–10. . . . . . . . .

Figure C–15: Choose Advanced Start menu settings C–11. . . . . . . . . . . . . .

Figure C–16: The Exploring – Start Menu window C–11. . . . . . . . . . . . . . .

Figure C–17: Open the c:\Winnt\Profiles\Start Menu\Desktop folder C–12 Figure C–18: Copy the MPEG Test System folder into the

Start menu C–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Figure C–19: The correct Tektronix MPEG Test System submenu C–13. .

Figure E–1: Initial connections for the functional check E–1. . . . . . . . . . .

Figure E–2: Starting the Data Store Administrator E–2. . . . . . . . . . . . . .

Figure E–3: Setup for measuring the G.703 34.368 Mbit/s output E–3. . . Figure E–4: Setup for measuring the TTL 50 ohm clock I/O port E–4. . . Figure E–5: Setup for measuring the TTL 50 ohm data I/O port E–5. . .

Figure F–1: Repackaging the MTS210 server F–2. . . . . . . . . . . . . . . . . . .

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List of Tables

Table 1–1: Power cord identification 1–10. . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–2: ECL control port pinout 1–13. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–3: ECL parallel data pinout 1–14. . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–4: ECL serial data pinout 1–15. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–5: 10 Mbit serial port pinout 1–16. . . . . . . . . . . . . . . . . . . . . . . . . .

Table 1–6: Estimated maximum cable lengths 1–17. . . . . . . . . . . . . . . . . .

Table 2–1: Test System applications 2–1. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 2–2: Icons used in the hierarchic view 2–12. . . . . . . . . . . . . . . . . . . .

Table 2–3: PTS/DTS graphic view icons 2–34. . . . . . . . . . . . . . . . . . . . . . .

Table 2–4: The icons in the multiplexer hierarchic view 2–48. . . . . . . . . .

Table 3–1: Icons used in the PSI hierarchic view 3–13. . . . . . . . . . . . . . . .

Table 3–2: Special hierarchic view symbols 3–14. . . . . . . . . . . . . . . . . . . . .

Table 3–3: Icons used in the SI hierarchic view 3–16. . . . . . . . . . . . . . . . . .

Table 3–4: PSI consistency error symbols 3–27. . . . . . . . . . . . . . . . . . . . . .

Table 3–5: SI consistency error abbreviations 3–28. . . . . . . . . . . . . . . . . . .

Table 3–6: Information in the PSI/SI rate table 3–29. . . . . . . . . . . . . . . . . .

Table 3–7: PTS/DTS graphic view icons 3–35. . . . . . . . . . . . . . . . . . . . . . .

Table 3–8: Multiplex rate bar colors 3–66. . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–9: Hierarchic view icons 3–68. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–10: The default multiplexer settings 3–78. . . . . . . . . . . . . . . . . . . .

Table 3–11: Using the Add command 3–80. . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–12: Functions available from the tool bars 3–108. . . . . . . . . . . . . .

Table 3–13: Icons used in the Edit Table application 3–109. . . . . . . . . . . . .

Table 3–14: Frequencies available for each port 3–173. . . . . . . . . . . . . . . . .

Table 3–15: How synchronization works 3–175. . . . . . . . . . . . . . . . . . . . . . .

Table 3–16: DefaultAlwaysDialogBox registry parameter values 3–176. . .

Table 3–17: The parameters available from each port 3–178. . . . . . . . . . . .

Table 3–18: DefaultAlwaysDialogBox registry parameter values 3–179. . .

Table 3–19: Test System to Test System transfer results 3–184. . . . . . . . . . .

Table 3–20: Packet Jitter menu commands 3–190. . . . . . . . . . . . . . . . . . . . .

Table 3–21: Commands available from the Packet Jitter toolbar 3–197. . .

Table 3–22: Expected input file types 3–199. . . . . . . . . . . . . . . . . . . . . . . . . .

Table 3–23: Commands from DVB Channel Coding & Decoding 3–201. . .

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Table A–1: G.703 — 8.448 MHz A–2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–2: G.703 — 34.368 MHz A–4. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–3: ECL parallel, serial, and control ports A–6. . . . . . . . . . . . . . .

Table A–4: ECL parallel data pinout A–7. . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–5: ECL serial data pinout A–8. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–6: ECL control port pinout A–9. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–7: 50 W TTL I/O A–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–8: 10 Mbit serial port (RS-422 levels I/O Port) A–10. . . . . . . . . .

Table A–9: 10 Mbit serial port pinout A–11. . . . . . . . . . . . . . . . . . . . . . . . .

Table A–10: Clock Port A–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–11: PLL A–12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–12: Power requirements A–13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table A–13: MTS 210 mechanical characteristics A–13. . . . . . . . . . . . . . . .

Table A–14: MTS 210 environmental characteristics A–13. . . . . . . . . . . . .

Table A–15: Safety certification compliance A–14. . . . . . . . . . . . . . . . . . . .

Table A–16: Certifications and compliances A–14. . . . . . . . . . . . . . . . . . . .

Table D–1: Compliance for the Transport Packet Header D–1. . . . . . . . .

Table D–2: Compliance for the Adaptation Field (AF) D–3. . . . . . . . . . .

Table D–3: Compliance for the PES packet header D–6. . . . . . . . . . . . . .

Table D–4: Compliance for the PAT sections D–8. . . . . . . . . . . . . . . . . . . .

Table D–5: Compliance for the PMT sections D–9. . . . . . . . . . . . . . . . . . .

Table D–6: Compliance for the CAT section D–10. . . . . . . . . . . . . . . . . . . .

Table D–7: Compliance for the NIT sections D–11. . . . . . . . . . . . . . . . . . . .

Table D–8: Compliance for the private sections D–11. . . . . . . . . . . . . . . . .

Table D–9: Compliance for all descriptors D–12. . . . . . . . . . . . . . . . . . . . .

Table D–10: Video stream descriptor D–12. . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–11: Audio stream descriptor D–13. . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–12: Hierarchy descriptor D–13. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–13: Registration descriptor D–14. . . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–14: Data stream alignment descriptor D–14. . . . . . . . . . . . . . . . . .

Table D–15: Target background grid descriptor D–14. . . . . . . . . . . . . . . . .

Table D–16: Video window descriptor D–15. . . . . . . . . . . . . . . . . . . . . . . . .

Table D–17: CA descriptor D–15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–18: ISO 639 language descriptor D–15. . . . . . . . . . . . . . . . . . . . . .

Table D–19: System clock descriptor D–16. . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–20: Multiplex buffer utilization descriptor D–16. . . . . . . . . . . . . .

Table D–21: Copyright descriptor D–16. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–22: Maximum bitrate descriptor D–17. . . . . . . . . . . . . . . . . . . . . .

Tektronix MPEG Test System User Manual

Table of Contents

Table D–23: Private data indicator descriptor D–17. . . . . . . . . . . . . . . . . .

Table D–24: Smoothing buffer descriptor D–17. . . . . . . . . . . . . . . . . . . . . .

Table D–25: STD descriptor D–17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table D–26: IBP descriptor D–18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Table F–1: Packaging material F–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

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Tektronix MPEG Test System User Manual

General Safety Summary

Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it.

Only qualified personnel should perform service procedures.

While using this product, you may need to access other parts of the system. Read the General Safety Summary in other system manuals for warnings and cautions related to operating the system.

Injury Precautions

Use Proper Power Cord. To avoid fire hazard, use only the power cord specified

for this product. Avoid Electric Overload. To avoid electric shock or fire hazard, do not apply a

voltage to a terminal that is outside the range specified for that terminal. Avoid Overvoltage. To avoid electric shock or fire hazard, do not apply potential

to any terminal, including the common terminal, that varies from ground by more than the maximum rating for that terminal.

Avoid Electric Shock. To avoid injury or loss of life, do not connect or disconnect probes or test leads while they are connected to a voltage source.

Ground the Product. This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, ensure that the product is properly grounded.

Do Not Operate Without Covers. To avoid electric shock or fire hazard, do not operate this product with covers or panels removed.

Use Proper Fuse. To avoid fire hazard, use only the fuse type and rating specified for this product.

Do Not Operate in Wet/Damp Conditions. To avoid electric shock, do not operate this product in wet or damp conditions.

Do Not Operate in an Explosive Atmosphere. To avoid injury or fire hazard, do not operate this product in an explosive atmosphere.

Product Damage

Precautions

Tektronix MPEG Test System User Manual

Use Proper Power Source. Do not operate this product from a power source that applies more than the voltage specified.

Provide Proper Ventilation. To prevent product overheating, provide proper ventilation.

xiii

General Safety Summary

Do Not Operate With Suspected Failures. If you suspect there is damage to this product, have it inspected by qualified service personnel.

Symbols and Terms

T erms in this Manual. These terms may appear in this manual:

WARNING. Warning statements identify conditions or practices that could result in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in damage to this product or other property.

T erms on the Product. These terms may appear on the product: DANGER indicates an injury hazard immediately accessible as you read the

marking. WARNING indicates an injury hazard not immediately accessible as you read the

marking. CAUTION indicates a hazard to property including the product.

Symbols on the Product. The following symbols may appear on the product:

xiv

Certifications and

Compliances

DANGER

High Voltage

Protective Ground

(Earth) T erminal

ATTENTION

Refer to Manual

Double

Insulated

Refer to the specifications section for a listing of certifications and compliances that apply to this product.

Tektronix MPEG Test System User Manual

Preface

This document applies to the deferred-time analysis and generation software and hardware of the Tektronix MTS 210 and MTS 215 MPEG Test Systems.

NOTE. The MTS 215 and the MTS210 option AG include all applications discussed in this user manual. The MTS 210 option 1A includes all applications except the Multiplexer. The MTS 210 option 1G includes all applications except the deferred-time Analyzer. You can upgrade an option 1A or 1G Test System to either an MTS 210 option AG or an MTS215; see your Tektronix representative for more information.

For information about the additional MTS 215 real-time analysis hardware and software, refer to the MTS200 Series Real-Time Analyzer User Manual, Tektronix part number 071-0076-0X, that is provided with the MTS 215.

For information about the Windows NT Workstation operating system, refer to the Microsoft documentation that accompanied your test system.

For information about the Compaq Proliant server, refer to the Compaq documentation that accompanied your test system.

For the latest information about Tektronix MPEG Test System features and bugs, refer to the MTS 200 Series Read This First document, Tektronix part number 071-0079-0X, that accompanied your test system.

Tektronix MPEG Test System User Manual

Preface

Contacting Tektronix

Product Support

Service Support

For other information

To write us Tektronix, Inc.

For application-oriented questions about a Tektronix measurement product, call toll free in North America: 1-800-TEK-WIDE (1-800-835-9433 ext. 2400) 6:00 a.m. – 5:00 p.m. Pacific time

Or contact us by e-mail: tm_app_supp@tek.com

For product support outside of North America, contact your local Tektronix distributor or sales office.

Contact your local Tektronix distributor or sales office. Or visit our web site for a listing of worldwide service locations.

http://www.tek.com In North America:

1-800-TEK-WIDE (1-800-835-9433) An operator will direct your call.

P.O. Box 1000 Wilsonville, OR 97070-1000

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Tektronix MPEG Test System User Manual

Product Description

This section describes the capabilities and components of the Tektronix MPEG Test System. options AG, 1A, and 1G. These features are shared by the MTS 215 MPEG Test System.

Overview

The MTS 210 hardware and software make it possible to create, generate, acquire, and analyze MPEG-2 transport streams and DVB multiplexes. The MTS 210 option AG and MTS215 include the following applications:

 Multiplexer  Deferred-time Analyzer  Table Editor  DVB Channel Coder/Decoder  Packet Jitter [Adder]  Data Store Administrator

The MTS 210 option 1A is intended for transport stream analysis and does not include the Multiplexer application.

The MTS 210 option 1G is intended for transport stream generation and does not include the Deferred-time Analyzer application.

All MTS 210 and MTS215 Test Systems contain the Data Store system which can acquire and output transport streams at rates from 1 Mbit/s to 55 Mbit/s. Given the standard 18 Gbytes of Data Store disk capacity, the MTS 210 can store over 40 minutes of transport stream data at 55 Mbits/s. You can also use end-to-start looping to continuously (and indefinitely) acquire or output up to 18 Gbytes of transport stream. Data Store I/O can be through a variety of hardware connections, including TTL serial, ECL parallel, ECL serial, G.703, and RS-422.

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Product Description

Applications

The five Tektronix MPEG Test System applications are the Analyzer, the Multiplexer, the PSI and SI Table Editor, the Channel Coder/Decoder, and Packet Jitter.

Analyzer

With the Deferred-time Analyzer, you can analyze transport stream data (acquired by the Data Store System) with the Analyzer application. The Analyzer provides several graphical views of MPEG and DVB transport stream; the views give access to each field—and each bit, if you wish, in the transport packets, PES packets, and the various PSI and SI tables.

Hierarchic View . The hierarchic view provides a diagram of the data components carried by the transport stream. Icons are used to identify the PAT (Program Association Table), NIT (Network Information Table), PMT (Program Map Table), PES (Packetized Elementary Stream), packets, and the three types of elementary streams (video, audio, and data). Additional icons indicate the PID (Packet Identification) number for each data component.

Interpreted View. The interpreted view shows every field in the selected transport packet, table section, or PES (packetized elementary stream) packet. Any packet in the file may be accessed. Search for errors in this view.

Timing Displays. Two types of timing displays are available: PCR (Program Clock Reference) contained in the transport packet headers and PTS/DTS (Presentation/Display Time Stamp) contained in PES packet headers. The PCRs are shown in a graphical form indicating their arrival time. The graphical display of the PTS/DTS shows a time line for each access unit (such as a video frame) indicating data arrival and value of each time stamp.

1–2

Multiplexer

The Multiplexer provides the means to develop a limitless variety of MPEG transport stream files, using the elementary streams provided.

Transport streams are produced by the software in non-real time, typically 10 to 100 times the play time of the resulting file. A hierarchy display, similar to the Analyzer, displays the structure of the transport stream.

Up to 20 programs, with 10 elementary streams each, may be included in one transport stream file.

Elementary stream files containing both stationary test signals and motion sequences are provided on the Bit Stream CD ROM. With the MTS 210 Multiplexer and Table Editor applications, you can create a variety of transport stream files that contain one or more of the provided test signals and motion sequences.

Tektronix MPEG Test System User Manual

Product Description

PSI and SI Table Editor

Channel Coder

Data necessary for the DVB IRD (Digital Video Broadcasting Integrated Receiver Decoder) to automatically configure itself is available in the MPEG2 Program Specific Information (PSI). Digital Video Broadcasting Specific Information (DVB-SI) adds information that enables DVB IRDs to automatically tune to a particular service and allows services to be grouped into categories with relevant schedule information.

The PSI and SI Table Editor allows the user to enter and change the data in the SI and PSI tables to fit requirements.

The European Digital Broadcasting Project (DVB) has specified a baseline system for satellite broadcasting. The Channel Coding portion of the specification has the following coding flow:

 MPEG2 Transport stream file (Multiplexer)  Energy Dispersal — randomizing  Outer Coder RS (204, 188) — for byte error correction  Interleaver — better burst error correction  Inner Coder (Viterbi p/q) — bit error correction

Packet Jitter

 QPSK Modulator This application provides the defined channel coding for the transport stream file

and also provides the decoding to return the coded file to a standard transport stream file.

In addition to creating error-free transport streams, the MTS210 can also create transport stream files with known errors.

The Packet Jitter application allows you to create transport stream files with simulated timing errors that affect the clocks derived from the transport file. This allows you to test the robustness of decoders under various conditions.

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Product Description

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Tektronix MPEG Test System User Manual

Accessories

The following accessories are standard with the MTS 210. All items except the monitor are shipped in the box that contains the server.

 Tektronix 17 inch monitor and monitor cable. (the monitor power cord is

shipped in the MTS 210 accessories package.)

 Compaq server with the Data Store system installed (referred to as the

MTS 210 server).

 Keyboard and mouse  Software enable key (HASP; installed on the server parallel port).  MTS 210 MPEG Test System User Manual (this document)  MTS200 Series Read This First, part number 071-0079-0X  Compaq documentation and back-up copies of the Compaq software  Windows NT software and documentation package.  Emergency repair disk.  MTS 210 Installation Software CD ROM, provided for reinstalling the

MTS 210 software in case it becomes corrupted.

 A CD ROM containing MPEG-2 Elementary Streams  Two power cords: one each for the MTS 210 server and the monitor.  Six SMB to BNC adaptors: three with 50 W cables and three with 75 W

cables.

 One shielded 9–pin cable (use this cable to meet EMI requirements).  One shielded 25–pin cable (use this cable to meet EMI requirements).

Tektronix MPEG Test System User Manual

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Accessories

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Tektronix MPEG Test System User Manual

Installation

Tektronix MPEG Test System installation involves selecting an installation site, installing the server pedestal and door, and connecting all necessary cabling. Once all items are unpacked, system assembly should require just a few minutes. Save the shipping carton and all the inserts for use if reshipment of the MTS 210 server becomes necessary. Repackaging instructions are in Appendix F.

CAUTION. To avoid damage to the MTS 210 during shipping, retain the original shipping carton. Shipping the MTS 210 in any other packaging may void the warranty.

Assembling the Test System

Before you begin to assemble the test system, please make sure that you have selected an appropriate location.

 Choose a sturdy, level site that includes dedicated and properly grounded

circuits, air conditioning equipment, and static electricity protection.

 Provide a minimum of three inches (7.6 cm) clearance at the front and back

of the computer for proper ventilation.  Make sure that no heavy electrical equipment will be located nearby. Once a good site has been identified, begin assembling the MTS 210 using the

procedure given below. (Figure 1–1 illustrates the rear panel of the test sytem.)

WARNING. Be careful lifting and moving the MTS 210 server. It is heavy.

1. Install the pedestal on the MTS 210 server.

a. Carefully set the server on its top.

b. Align the post on the pedestal with the slots in the server case.

c. Slide the pedestal into the slots until the retaining clip on the pedestal

snaps into place on the server base.

d. Carefully turn the server over to set it upright on the pedestal.

2. Install the door on the front of the server.

a. Line up the hinge pins of the two hinges on the right side of the server

door with the hinge pin holes in the server chassis.

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Installation

b. Lower the hinge pins into the hinge pin holes and close the door.

3. Connect the keyboard to the keyboard port on the rear panel of the MTS 210

server.

4. Connect the mouse to the mouse port on the rear panel of the server.

5. Verify the software key (HASP) is attached to the parallel port on the rear

panel of the MTS 210 server. See Figures 1–1 and 1–2. (It should already be connected.)

NOTE. If you need to use the parallel port for another function, connect that cable through the HASP.

6. If the MTS 210 is being connected to a network, connect it now. Two types

of ethernet ports are provided: an AUI port and an RJ45 port. See Figure 1–1. The ethernet ports do not require termination.

7. Connect the monitor cable to the monitor and to the rear of the MTS 210

server at the video port in expansion slot six. Do not use the built-in video connector.

8. Connect the power cord to the monitor and to a power source.

9. Connect the power cord to the MTS 210 server and to a power source.

NOTE. Although the MTS 210 is based on a standard computer configuration, do not use the MTS 210 for any other purpose or install boards not provided or recommended by Tektronix. These actions may cause your system to operate in an unexpected manner. However, you may connect it to an appropriate network.

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Tektronix MPEG Test System User Manual

Parallel port

(where HASP

is installed)

Mouse port

Serial ports

Keyboard port

Installation

Data Store I/O

Video port

Supplying Power

SCSI

connector

AUI Ethernet

port

RJ45-Ethernet

port

Figure 1–1: The rear panel of the MTS210 server

The MTS 210 server and monitor are designed to operate from a single-phase power source having one of its current-carrying conductors at or near earth ground (the neutral conductor). Systems that have both current-carrying conductors live with respect to ground, such as phase-to-phase or multiphase systems, are not recommenced as power sources. A protective ground connection, by way of the grounding conductor, in the power cord is essential for safe operation.

WARNING. This equipment is designed for connection to a earth-grounded AC outlet. The grounding plug is an important safety feature. To avoid risk of electrical shock or damage to your equipment, do not disable this feature.

Mains V oltage Range. The MTS 210 server (the ProLiant 2500) operates on power mains from 100 VAC to 230 VAC.

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Installation

The monitor operates on either 115 VAC or 230 VAC source also without having to set a voltage selection switch.

Mains Frequency . The ProLiant server and the monitor both operate on either 50 Hz or 60 Hz line frequencies.

CAUTION. To prevent damage to the server, you should protect the instrument from power fluctuations and temporary interruptions with a regulating uninterruptable power supply (UPS). This device protects the hardware from damage caused by power surges and voltage spikes. In addition, it keeps the system in operation during power failure.

Power Cord Options. The server and monitor are delivered from the factory with a power cord for 60 Hz/117 VAC North American operation unless one of the power cord options was ordered. Table 1–1 shows the power cord options.

T able 1–1: Power cord identification

Plug Configuration Normal Usage Option Number

North America 125 V/15A Plug NEMA 5-15P

Europe 230 V

United Kingdom 230 V

Australia 230 V

Switzerland 230 V

Standard

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Tektronix MPEG Test System User Manual

Installation

Software Enable Key

The MPEG Test System software is enabled by the software enable key (the HASP; see Figure 1–2), which is installed on the parallel port and is transparent to parallel port applications, such as printing. The HASP must be in place on the ProLiant parallel port for the MTS 210 to operate. Do not lose the HASP. The software enabler (HASP) should remain with the MTS 210 at all times. If the entire instrument is returned for service, ship the HASP with the server.

CAUTION. Do not lose the HASP (software enable key). The MTS210 will not operate without it being installed on the parallel port. The software enabler key (HASP) also is required by the Tektronix Service Center if the ProLiant server is returned for repair.

Figure 1–2: MTS210 HASP

Tektronix MPEG Test System User Manual

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Installation

MTS210 I/O

The MTS 210 rear panel input/output connectors (I/O) are located in two EISA slots on the ProLiant server rear panel. Specification of the I/O ports are in Appendix A, Specifications. Figure 1–3 shows the arrangement of the I/O connectors. A detailed description of each of the connectors follows the illustration.

ECL parallel/serial

I/O port

ECL control port

TTL 50  serial port (Clk I/O)

TTL 50  serial port (Data I/O)

External clock input (Clk In)

10 Mbit serial port (RS-422 levels I/O port)

G.703 input

G.703 output (34.368 Mbits/s)

G.703 output (8.448 Mbits/s)

1–12

ECL Control Port

Figure 1–3: The MTS210 signal I/O ports

The bidirectional differential control port adds flexibility to the ECL Parallel and Serial Ports. Adding the three control signals provides two more operating modes. (Using this port is optional.) The ECL control port pinout is shown in Table 1–2.

Tektronix MPEG Test System User Manual

T able 1–2: ECL control port pinout

ECL control port Pin Function

1 CHCLK (Channel Clock) 2 Ground

1 2

2 3 4

Asserted Low differential signal.

3 CHSYNC (Channel Sync)

4 CHCLKEN (Channel Clock Enable)

5 Shield

6 CHCLK (Channel Clock) 7 Ground 8 CHSYNC (Channel Sync) 9 CHCLKEN (Channel Clock Enable)

Installation

ECL Parallel/Serial I/O Port

The ECL Parallel/Serial I/O port receives and transmits MPEG-2 transport streams at ECL levels. It is a differential, bidirectional port that operates independently or in conjunction with the ECL Control Port. The port transmits or receives either parallel or serial data depending on settings made in the Data Store Administrator application.

Operating Modes. When the ECL Parallel/Serial I/O port is used independently of the ECL Control Port there are three operating modes:

 Slave acquisition. Captures input signals using the clock signal on the ECL

Parallel/Serial I/O port as the timing source.

 Master generation. Outputs signals using the MTS 210 internal clock.  Master generation with external clock. Outputs signals using a timing signal

applied to the external clock input (Clk In). When the ECL Parallel/Serial I/O port is used in conjunction with the control

port, there are three additional operating modes:  Master acquisition. Captures input signals using control signals from the

ECL Control Port to drive the signal source.  Master acquisition with external clock. As above, but uses a timing signal

applied to the external clock input (Clk In) as the clock source.  Slave generation. Outputs signals using the ECL control port inputs as the

timing source.

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Installation

5 6

NOTE. Master — The unit provides the clock for data transmission. Slave — The unit does not generate the data clock. The unit returns the clock provided by an external source.

Parallel Pinout. The parallel data pinout of the ECL Parallel/Serial I/O port is shown in Table 1–3.

T able 1–3: ECL parallel data pinout

ECL parallel port Pin Function Pin Function

1 DCLK 14 DCLK

1 2 3

7 8

10 11 12 13

2 ground 15 ground

3 DATA 7 16 DA TA 7

4 DATA 6 17 DA TA 6

16 17

5 DATA 5 18 DA TA 5

6 DATA 4 19 DA TA 4

7 DATA 3 20 DA TA 3

8 DATA 2 21 DA TA 2

9 DATA 1 22 DA TA 1

22 23

10 DATA 0 23 DATA 0

11 DV ALID 24 DVALID

12 PSYNC 25 PSYNC 13 shield

Asserted Low differential signal.

Serial Pinout. The serial data pinout of the ECL Parallel/Serial I/O port is shown in Table 1–4.

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Tektronix MPEG Test System User Manual

T able 1–4: ECL serial data pinout

5 6

ECL serial port Pin Function

1 DCLK

1 2 3

7 8

10 11 12 13

2 ground

3 - 9 Not Managed

10 DATA 0

16 17

11 DVALID

12 PSYNC

13 shield

14 DCLK

15 ground

22 23

16 – 22 Not Managed

23 DATA 0

24 DVALID 25 PSYNC

Installation

G.703 Output

(8.448 and 34.368 Mbit/s)

and G.703 Input

Asserted Low differential signal.

This serial interface complies with the electrical characteristics of ITU-T Recommendation G.703 (HDB3 code) for 8.448 Mbit/s and 34.368 Mbit/s.

There are two modes of operation:

 Acquisition. Locks to incoming signal and is self clocking.  Generation (internal clock source). Uses an internal clock source.

This interface uses three Data Store circuit board mounted SMB connectors. One connector is a dedicated input for both bit rates. The other two connectors are dedicated outputs, one for the 34.368 Mbit/s output and the other for the

8.443 Mbit/s output. To reduce spurious emissions, only the output currently being used should be connected.

NOTE. Do not leave an SMB-to-BNC adaptor cable on an unused G.703 output. Doing so will cause the MTS 210 to exceed EMC emission requirements.

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Installation

10 Mbit Serial Port

(RS-422 Levels I/O Port)

The 10 Mbit Serial port can transmit and receive MPEG transport signals. It has bidirectional clocks and data pairs. The maximum operating frequency is 10 Mbit/sec. It uses RS-422 voltage levels, with line-to-line input termination of 110 W. The pinout is shown in Table 1–5.

T able 1–5: 10 Mbit serial port pinout

10 Mbit serial port Pin Function

1 DATA IN 2 CLK IN

1 2

2 3 4

Asserted Low differential signal.

3 DATA OUT

4 CLK OUT

5 ground

6 DATA IN 7 CLK IN 8 DATA OUT 9 CLK OUT

The 10 Mbit Serial port uses the following signals:

Clock Input

 Data In and Data Out. These are MPEG serial bit streams.  Clock In and Clock Out. These are continuous data transmission clocks.

You can choose from three modes of operation:

 Acquisition. Captures an input signal using external timing reference.  Internal generation. Generates an output signal using the Tektronix MPEG

Test System internal clock as the timing reference.

 External generation. Generates an output signal using the Clock input as the

timing reference.

The Clk In connector provides optional timing input for the ECL Serial, ECL Parallel, TTL and 10 Mbit Serial outputs. Its maximum operating frequency is 45 MHz.

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Tektronix MPEG Test System User Manual

Installation

TTL 50  Serial Port

(Data & Clock I/O)

The TTL 50 W Serial Port receives and transmits at TTL levels. It consists of clock and data inputs with dedicated connectors. The Data signal is a serial bit stream, and the Clock signal is a continuous data transmission clock. The maximum operating frequency is 45 Mbits/s.

There are three modes of operation:

 Acquire. Captures an input signal.  Internal Generation. Generates a signal that is locked to the internal clock.  External Generation. Generates a signal locked to an external reference (the

Clock Input).

Cables and Mating Connectors for Data Store Inputs/Outputs

The test system is supplied with adapters for connecting the Data Store SMB connectors to standard BNC connectors. It may be necessary to acquire or assemble other signal connecting cables and adapters in order to install the test system in your facility.

The maximum usable cable length for the various ports on the MTS 210 are a function of data rate, cable type, and ambient environment. See Table 1–6. Low data rates can stand longer cable lengths than high data rates. Low-loss coaxial cable and low-capacitance properly pair-twisted cable can support longer transmission paths than miniature coaxial cable or ribbon cable. Excess RF noise can induce noise in the cable which will reduce the usable length.

The only ports designed as a transmission system are the G.703 I/Os. The others are basically short-range interconnects. Note that most ports must control cable delay matching, to maintain clock to data timing margin, or data integrity will suffer.

T able 1–6: Estimated maximum cable lengths

Port Rate, Mbits/s Maximum length Cable type Comments

G.703 8.448 275 meters Belden 8281 4 dB atten at

G.703 34.368 125 meters Belden 8281 4 dB atten at

10 MBit (RS422)

Tektronix MPEG Test System User Manual

1 100 meters 24 AWG

unshielded twisted pair

10 15 meters 24 AWG

unshielded twisted pair

4.224 MHz

17.18 MHz Ref. ANSI/TIA/

EIA-422-B-1994

Ref. ANSI/TIA/ EIA-422-B-1994

1–17

Installation

T able 1–6: Estimated maximum cable lengths (cont.)

Port CommentsCable typeMaximum lengthRate, Mbits/s

TTL 10 50 meters RG58 type Calculated Value TTL 50 25 meters RG58 type Calculated Value

Adapters

ECL Parallel

ECL Serial 45 5 meters Belden 8112 Calculated Value

1 50 meters Belden 8112 Calculated Value

The test system comes with six SMB-to-BNC adapter cables. Three of the adapters are 75 W to match the impedance of the G.703 inputs and outputs. The other three adapters are 50 W for use with the TTL Serial Port (Clock and Data) and Clock Inputs.

Do not leave an SMB-to-BNC adapter cable on an unused G.703 output. Doing so will cause the test system to exceed EMC emission requirements.

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Tektronix MPEG Test System User Manual

First Time Operation

Once you have installed the Compaq Proliant server, the Tektronix MPEG Test System is ready to operate. Slide the power switch cover plate to the right as shown in and press the power switch.

Power switch

Slide power switch

cover plate

The MTS 210 then goes through the Windows NT initialization process, which can take up to two minutes. (For more information on the Windows NT initialization process, please see the Windows NT documentation.) Under normal circumstances no action is required until the Begin Logon window appears; when it does, press the Logon Information dialog box.

Logging In

To logon to the MTS 210, enter “MTS100” in the User name box, leave the password blank, and then press factory). This is the login account you should use for most of your work.

Tektronix MPEG Test System User Manual

CTRL + ALT + DELETE (all three keys simultaneously) to open

RETURN (these are the default values set at the

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First Time Operation

The Initial Window

There are two other logins and passwords available. The first is “guest” with no password. This level has only limited access to files and applications. The second is “administrator” with “MPEG2” as the password. This user has administrator privileges. You must use this login when performing any software upgrades.

CAUTION. The administrator user has all the privileges of an administrator. If you are connected to a network, you may have more privileges than you realize within the network. It is recommended that you do not perform normal operations while logged in as administrator.

You can change the passwords if necessary; refer to the Windows NT documentation for instructions. If you change any password, be sure to create a new emergency repair disk. (See page C–1.)

Once you have logged in, you will have access to the Tektronix MPEG Test System program group.

Additional Support

1–20

This manual explains how to use the Tektronix MTS 210 applications. Refer to the MTS200 Series Real-Time Analyzer User Manual, Tektronix part number 071-0076-00, for information about the MTS 215 Real-Time Analylzer application.

Additional support for the MTS 210 can be obtained from the Tektronix support number. The support number is available from North America. Call 1-800-TEK WIDE (1-800-835-9433) and ask for MPEG Test System support.

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Operating Basics

There are eight applications provided with the MTS 210. Their names and functions are given in Table 2–1.

NOTE. The Analyzer application is not included with option 1G. The Multiplexer application is not included with option 1A. The Real-Time Analyzer application, included with the MTS 215, is discussed in the MTS200 Series Real-Time Analyzer User Manual.

T able 2–1: MTS 210 applications

Icon Application Name Function

Analyzer

БББББББББ

(MPEG2 System Analyzer application) Data Store Control

БББББББББ

(Data Store Administrator)

БББББББББ

DVB Channel Coding and Decoding (Coder/Decoder application)

БББББББББ

Multiplexer (MPEG2 Transport Multiplex Generator)

БББББББББ

Packet Jitter

БББББББББ

Table Editor

БББББББББ

(Edit Table application)

Analyze transport stream files and packe-

ББББББББББ

tized elementary streams. Manage the Data Store Disks. It also

ББББББББББ

controls acquisition and generation of

ББББББББББ

MPEG-2 transport streams. Code and decode transport stream files to

DVB specifications.

ББББББББББ

Create transport stream files from PSI and SI table files, elementary stream files, and

ББББББББББ

data files. Not included with the MTS210

ББББББББББ

option 1A. Add jitter to the PCR data in the transport

stream file.

ББББББББББ

Create and edit PMT, NIT, SDT, BAT, and

ББББББББББ

EIT files.

Error Injector Insert or correct errors in transport stream

packets.

Set Carb Set parameters of the Data Store system.

Running the Software

Start any of the applications by clicking its name in the Tektronix MPEG Test System submenu. The HASPR (parallel port software key) must be installed for any of the applications to operate. If the Data Store board is not installed, the

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Operating Basics

Data Store Control will not initialize correctly and you will receive an error message.

NOTE. This manual is written assuming a basic level of familiarity with the Windows 95 or the Windows NT 4.0 operating system. If you are not comfortable with either operating system, review the Windows NT documentation.

Tutorials and Reference Sections

Tutorials and reference information are provided to help familiarize you with the six software applications in the MTS 210. The first of three tutorials begins on page 2–7. The Reference section begins on page 3–1.

The tutorials step you through both analyzing transport stream files and creating (multiplexing) MPEG2 transport streams files and transport streams. They are presented in a step-by-step manner and designed so that you can follow along using your own MTS 210. The files required for these exercises are shipped with the MTS 210.

The Reference section explains all of the commands available from each of the six applications that are part of the MTS 210 package. The explanations are given in the following order: Menu Bar commands, Command Buttons, and finally commands that can only be accessed through “mouse-clicks”.

Acquiring Elementary Bit Stream Files

The standard configuration of the Tektronix MPEG Test System contains several video and audio elementary stream files and a sample transport stream file. These files contain pictures, common industry test signals, and sample signals in MPEG-2 format. They may be used for the following tutorials and for constructing your own transport streams.

There are two sources of additional elementary stream files: a CD ROM (part number 063-1914-0x) that is supplied with the instrument and the Tektronix FTP site.

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Operating Basics

CD ROM

To use files from the CD ROM, either copy the files to the appropriate directories on the MTS 210 system disk (drive C) or leave the CD ROM in drive D.

Audio Files. The CD ROM contains the following audio files in the Audio directory:

15kz–064.mp2 15kz–128.mp2 15kz–192.mp2 15kz–256.mp2 1kz–064.mp2 1kz–128.mp2 1kz–192.mp2 1kz–256.mp2 400–064.mp2 400–128.mp2 400–192.mp2 400–256.mp2

The file names indicate the elementary stream bit rate. The file 15kz–256.mp2, for example, contains a 15 kHz audio tone at 0.256 Mbits/s.

Video Files. The CD ROM contains the following video files. The Video\525 directory contains streams with 525-line video; the Video\625 directory contains streams with 625-line video. Both directories contain all listed files.

4kz–064.mp2 4kz–128.mp2 4kz–192.mp2 4kz–256.mp2 Music064.mp2 Music128.mp2 Music192.mp2 Music256.mp2 Sync–064.mp2 Sync–128.mp2 Sync–192.mp2 Sync–256.mp2

100b_015.mp2 100b_060.mp2 100b_120.mp2 Bbc3_015.mp2 Bbc3_060.mp2 Bbc3_120.mp2 Cact_015.mp2 Cact_060.mp2 Cact_120.mp2 Mobl_015.mp2 Mobl_060.mp2 Mobl_120.mp2 Mulb_015.mp2 Mulb_060.mp2

The file names indicate the elementary stream bit rate. The file 100b_060.mp2, for example, contains a video elementary stream with a bit rate of 6.0 Mbits/s.

Mulb_120.mp2 Pulb_015.mp2 Pulb_060.mp2 Pulb_120.mp2 Sync_015.mp2 Sync_060.mp2 Sync_120.mp2 Tens_015.mp2 Tens_060.mp2 Tens_120.mp2 V700_015.mp2 V700_060.mp2 V700_120.mp2

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Operating Basics

Examples. The CD ROM also contains the following files in the Examples directory:

The MPEG Test System

FTP Site

10khz.mp2 1khz.mp2

Demo_060.mp2 Sample.trp

Demo_015.mp2

A second way to access these same signals (and any new bit streams that may become available), is via anonymous FTP from the Tektronix FTP site, ftp.tek.com. If you have a web browser, point it to the following URL:

FTP://ftp.tek.com/tv/test/streams/Element/

Otherwise, use FTP to contact ftp.tek.com, log in as “anonymous,” and use your email address as the the password. MPEG files are available in subdirectories of /tv/test/streams/Element. Each directory contains a Readme.txt file that describes the contents of the directory.

If you have no access to FTP, please contact Tektronix at 1-800-TEK-WIDE and ask for MPEG Test System support. An engineer will be glad to help you get the data. If you have Internet access but are having trouble accessing the site, contact your system administrator for assistance.

The following script illustrates the procedure for connecting to the MPEG Test System FTP site. Your entries are indicated with bold face type.

% ftp ftp.tek.com

Connected to inet1.tek.com. 220 inet1 FTP server (Version wu–2.4(1) Sun Jan 29 12:29:00 GMT

1995) ready.

Name (ftp.tek.com:user): anonymous

331 Guest login ok, send your complete e–mail address as password.

Password: enter your email address

230–

230– T E K T R O N I X F T P A R C H I V E

230– /

230–

230 Guest login ok, access restrictions apply.

ftp> cd /tv/test/streams/Element

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250 CWD command successful.

ftp> get README.TXT

The data included in this distribution, on the FTP site, is available to the user on an “as-is” basis. Tektronix disclaims any and all warranties, whether express, implied, or statuary, including any implied warranties of merchantability or of fitness for a particular purpose.

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Tutorial: Analyze a Signal

This section is intended to introduce you to the features and capabilities of the MPEG-2 System Analyzer. This “guided tour” uses step-by-step procedures and a standard MTS 210 sample transport stream file so you can follow along with your own system.

NOTE. To help you follow along with your own MTS 210, all steps that require your action are numbered.

Terms

Wherever possible, this manual uses terminology consistent with Microsoft WindowsT and MPEG-2 standards. Refer to the Windows documentation (included with the Tektronix MPEG Test System) for definitions and explanations of Windows terminology. Refer to the Glossary at the back of this manual for definitions of terms unique to MPEG or the test system; refer to the Index, also at the back of this manual, to locate other mentions of any subject.

Getting Help

As you follow the procedures in this section, remember that additional information about almost every aspect of MPEG-2/DVB bit streams and analyzer operation is available from three convenient sources:

H The Reference section of this manual. Using the Analyzer begins on

page 3–1.

H The Analyzer Help menu H The MPEG-2 Help utility, which contains applicable MPEG-2 standards in

Windows Help format.

Figure 2–1: Starting the MPEG-2 Help utility

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Starting the Analyzer Application

Start the Analyzer by clicking on the Analyzer name in the Tektronix MPEG Test System submenu.

Figure 2–2: Starting the Analyzer

Upper toolbar

Lower toolbar

The Analyzer starts with the Tektronix/Matra background in the application window. Note the location of the features named in Figure 2–3.

Menu bar

Status bar

2–8

Figure 2–3: The Analyzer application window

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Menu Bar

There are seven main analyzer menus:

File. File menu commands control the analyzer/disk interface and printing.

Edit. Use Edit menu commands to move among items (transport packets,

elementary stream packets, PSI or SI DVB table sections) of the type displayed in the selected document window.

Selection. Use Selection menu commands to control extractions from a transport stream file.

Analysis. Analysis menu commands provide access the stream analysis functions.

Options. Use Options menu commands to select analyzer configuration options.

Window. Use Window menu commands to manage the various open document

windows.

Help. The Help menu provides access to various forms of help.

Upper Toolbar

Figure 2–4 shows the functions available from the upper toolbar.

Open Save As Hierarchic View Add View

Figure 2–4: Command buttons on the upper toolbar

To display a reminder of the button function in the status bar (at the bottom of the application window) at any time, position the mouse cursor over the command button.

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Lower Toolbar

Figure 2–5 shows the functions available from the lower toolbar. These commands duplicate those in the Edit menu; they are available only when the active window contains one of a possible series of items.

Previous Go To Next Last Number of items Find next error

First

Figure 2–5: Command buttons on the lower toolbar

Again, position the cursor over a command button as shown in Figure 2–6 to display a button function reminder in the status bar.

Figure 2–6: Using the status bar

Opening an Existing Transport Stream File

Your MTS 210 has the sample transport stream file SAMPLE.TRP to assist in following the tutorial.

1. From the File menu, choose Open. This brings up the Open dialog box as

shown in Figure 2–7.

Figure 2–7: The Open dialog box

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2. Select Stream from the list of File Types.

3. Select SAMPLE.TRP from the file name list.

4. Choose OK. Figure 2–8 shows the resulting document window. This is the

hierarchic view of the multiplex encoded in the sample transport stream.

NOTE. The Analyzer cannot generate a hierarchic view if the stream does not contain a PAT (program allocation table, PID 0) or PMT (program map table).

The hierarchic view that appears when you first open a file is based on the first versions of the PAT and PMT tables found in the stream. You can use the Next command in the Edit menu or click on the Next command button (in the lower toolbar) to go to the next PSI version, if any, in the stream.

Figure 2–8: The hierarchic view of the SAMPLE.TRP stream

The Hierarchic View

The hierarchic view allows you to select an icon that represents a particular element in the stream and make a more detailed analysis. When selected, an icon displays in reverse video. After selection, all the extraction and analysis functions are available through the toolbars and menus.

Table 2–2 identifies the icons used in the hierarchic view.

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T able 2–2: Icons used in the hierarchic view

Icon Element Type

Multiplex transport packets. This icon represents all (188- and 204-byte) transport

ББББББББББББББББББББ

packets that make up the stream. If you visualize the transport stream as a train, this icon represents every car in the train, regardless of its configuration (flat car, boxcar,

ББББББББББББББББББББ

or hopper for example) and what it contains. Transport packets of a particular PID (Program ID). Other elements (tables, clocks,

ББББББББББББББББББББ

PES packets) are the “payload” contained within transport packets or are constructed

ББББББББББББББББББББ

from the payload of several transport packets that have the same PID. The PID number appears under the icon.

ББББББББББББББББББББ

In the hierarchic view, the icon to the right of this icon represents the payload of packets with this PID.

ББББББББББББББББББББ

Transport Packets that contain independent PCR clocks. The PID appears under the icon.

ББББББББББББББББББББ

PAT (Program Association Table) sections. Always contained in PID0 transport packets.

ББББББББББББББББББББ

PMT (Program Map Table) sections.

ББББББББББББББББББББ

NIT (Network Information Table) Provides access to SI Tables through the PSI/SI

ББББББББББББББББББББ

command from the Selection menu. Also used for Private sections.

ББББББББББББББББББББ

When the DVB option (in the Options menu) is selected, this icon can also represent

ББББББББББББББББББББ

SDT, BAT, EIT, and TDT sections. Packetized Elementary Stream (PES). This icon represents all packets that, together,

contain a given elementary stream. Individual PES packets are assembled from the

ББББББББББББББББББББ

payloads of several transport packets.

ББББББББББББББББББББ

Video elementary stream

ББББББББББББББББББББ

Audio elementary stream

ББББББББББББББББББББ

Data elementary stream

ББББББББББББББББББББ

ECM (Entitlement Control Message) sections

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EMM (Entitlement Management Message) sections

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Icon menus. Each type of hierarchic view icon has a context-specific shortcut menu that allows quick access to the functions available specifically for the chosen element. Figure 2–9 shows the shortcut menus for the common icons. Display this menu by clicking the right mouse button on the icon. Hold the mouse button down, highlight the desired command, and release the button to select the command.

NOTE. In all cases, you can select the first command on the shortcut menu (or the only command in one-item menus) by double-clicking on the icon. For all but elementary stream icons, this will open an “interpreted view” of the packet or section. Please continue with this tutorial to learn more about interpreted views.

Figure 2–9: Hierarchic view shortcut menus

Additional Information from the TS Icon

1. Click on the TS icon with the right mouse button and hold the button down

to open the TS shortcut menu, as shown in Figure 2–10.

Figure 2–10: The TS icon shortcut menu

2. Highlight Transport Packets and release the button. This opens an interpreted

view of the first complete transport packet in the stream, as shown in

Figure 2–11.

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Item data

Header fields

Packet (item)

contents

Figure 2–11: The interpreted view of the first transport packet

NOTE. You can also open the same interpreted view simply by double-clicking on the TS icon.

The Interpreted View

The interpreted view shows the structure of the transport packet and provides access to all the information contained in the packet header and payload. The transport packet display shows one transport packet at a time.

1. Use the command buttons on the lower toolbar to quickly scroll among the

transport packets. Notice that the Item number changes as you scroll through the transport packets.

Previous Go To Next Last Number of items Find next error

First

Figure 2–12: Command buttons on the lower toolbar

The transport stream in SAMPLE.TRP consists of 9300 transport packets, as indicated by the item number (Item 1/9300) at the top of the display. Many interpreted views do not indicate the total number of items when the view is first opened; click on either the Number of Items or the Last command button to add the information to the item data.

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Since this is an analysis program, you should be looking for errors in the stream.

2. Find the next error in the stream by clicking the Next Error button. The

program will search forward in the stream until it either finds an error or reaches the end of the file. If it finds an error, the interpreted view automatically displays the transport packet that contains the error.

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Tutorial: Analyze a Signal

3. Double-click on any packet field name for more information about the field,

as shown in Figure 2–13.

Figure 2–13: Double-click for an explanation of the field

Now see what it has to say about the value of the PID.

4. Click anywhere in the interpreted view outside of the PID message box to

dismiss the message. Then double-click on the PID value (0), to display help

information about the value, as shown in Figure 2–14. In this case, the

message reminds you that PID 0 always identifies the PAT.

Figure 2–14: Help information for the packet field value

Sometimes you can learn more by looking at field values displayed in hexadecimal base. Now change the display to show hexadecimal values.

5. Choose Base from the Options menu, select the Hexadecimal option button

in the Base dialog box, and click OK. Or simply press the F2 function key to

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toggle field values (and values in the hierarchic view) between decimal and hexadecimal base.

Figure 2–15: Press F2 to toggle numeric base

The Hexadecimal View

The hexadecimal view shows all bytes that make up the current item. An MPEG-2 transport packet consists of 188 or 204 bytes.

1. To open a hexadecimal view, first click the Add View command button—on

the upper toolbar—to open the View Type submenu, as shown in Figure 2–16.

Figure 2–16: The View Type submenu

2. Choose Hexadecimal from the submenu. This produces the hexadecimal

dump shown in Figure 2–17.

2–16

Figure 2–17: Hexadecimal view of a transport packet

Notice that the first few bytes appear in blue characters on the MTS 210 display to indicate that they are required header information for the type of

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Tutorial: Analyze a Signal

item. A transport packet has four required bytes. The blue, required bytes

may be followed by several bytes shown in gray (for an example, use the

command buttons to go to item three of SAMPLE.TRP). These gray bytes

are optional or variable header information. The remaining bytes, displayed

with black characters, are the payload or data bytes.

3. Close both transport packet windows (interpreted and hexadecimal views) so

you are ready to look at a PID map of the sample transport stream.

PID Map

The PID map can help you quickly locate the stream location and exact packet (item) number of a particular table section

1. Click on the hierarchic view TS icon with the right mouse button. Hold the

button down to reveal the shortcut menu, as shown in Figure 2–18.

Figure 2–18: The TS icon shortcut menu

2. Choose PID Map from the menu. This creates the window shown in

Figure 2–19.

Figure 2–19: The PID map of SAMPLE.TRP packets 1 to 100

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The PID map represents every transport packet in the stream with its PID (for uniformity, every PID is listed in a four digit field). In the map, each unique PID is color-coded according to the type of element it identifies. For example, the PIDs of packets that contain PAT sections are displayed in light green characters. The black numbers down the left side of the window indicate the packet number of the first packet of every row. Notice that the first PAT section is in packet one.

Multiplex Allocation

3. Click the Next command button (you remember: the one with the “

"” on it)

repeatedly until you see the next light green PID. The second PAT section in SAMPLE.TRP is in packet 334.

4. Close the PID map so you are ready to look at Multiplex Allocation in the

sample transport stream.

You can use the Multiplex Allocation view to discover what fraction of the transport stream multiplex is used by each PID.

1. Once again, click on the hierarchic view TS icon with the right mouse button

to open the shortcut menu. This time, choose Multiplex Allocation to create the window shown in Figure 2–20.

2–18

Figure 2–20: The Multiplex Allocation document window

The multiplex allocation pie chart is useful in determining which PIDs are present in the transport stream and in confirming that each PID is using the expected amount of the multiplex.

NOTE. PID 8191 is the stuffing PID; it is not shown in the hierarchic view.

Tektronix MPEG Test System User Manual

2. Close the multiplex allocation window so you are ready to look at the

transport packets of a particular PID with a minimum of clutter.

Additional Information from the Transport Packet Icon

The transport packet (rail car) icon represents transport stream packets that are identified with a particular PID. Other elements (such as table sections or PES packets) are the payload contained within these transport packets; the elements may be fully contained within one packet or constructed from the payload of several packets with the same PID. The PID number appears under the transport packet icon. In the hierarchic view, the icon immediately to the right of a transport packet icon represents the payload.

1. Press function key F2, if necessary, to display hierarchic view values in

decimal base.

2. Double-click on the PID 21 transport packet icon, as shown in Figure 2–21.

Tutorial: Analyze a Signal

Figure 2–21: Double-click on the PID 21 icon

The analyzer opens a window similar to Figure 2–22.

Figure 2–22: Interpreted view of the first PID 21 transport packet

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You can search for errors and get additional information about the fields and field values just as you did with the transport packet at the TS level. The difference is that now you are looking at only the packets of PID 21, which contain PMT sections describing program one.

3. Click the Last command button in the lower toolbar to go to the last PID 21

packet in the transport stream (if you have forgotten which button to use, move the cursor slowly over all buttons in the lower toolbar while watching the messages in the status bar, immediately below). Notice—by looking at the item data near the top of the window as shown in Figure 2–23—that there are only 14 transport packets of the 9300 in the SAMPLE.TRP stream that are identified with PID 21.

Item data

Figure 2–23: The last PID 21 packet in SAMPLE.TRP

By the way, the item position is the number of the first byte in the packet relative to the beginning (byte 0) of the transport stream file. In other words, there are 1625260 bytes in the file (and stream) before this packet.

As with the TS interpreted view, you can open a hexadecimal view of the packet through the Add View command button. Another way to look at the packets is in a binary view.

1. Click on the Add View button as shown in Figure 2–24.

Figure 2–24: The View Type submenu

2. Select Binary from the View Type submenu. The analyzer opens a window

similar to Figure 2–25. Notice that the first eight-bit byte, which corresponds to the sync byte (see

the interpreted view in Figure 2–22), is 01000111. Not surprisingly, this is the binary equivalent of 71 decimal and 0x47 hex. The next three bits correspond to the following three packet fields, and the 13 bits after that (to the end of the third byte) correspond to the PID. Sure enough, 00000 00010101 equals 21 decimal.

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Figure 2–25: The binary view of PID 21 item 14

3. Close the PID 21 interpreted and binary view windows before you proceed.

Additional Information from the PAT Icon

The PAT icon represents PAT (Program Association Table) sections. PAT sections are always contained in PID 0 transport packets.

1. Click on the hierarchic view PAT icon with the right mouse button. Hold the

button down to reveal the shortcut menu, as shown in Figure 2–26.

Figure 2–26: The PAT icon shortcut menu

2. Choose Section from the shortcut menu to open an interpreted view of the

PAT (Program Association Table). The window resembles Figure 2–27.

NOTE. You can also open the same interpreted view simply by double-clicking on the PAT icon.

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Item data

Header fields

Program 0

information

Program 1

information

Section CRC

Figure 2–27: The P AT section interpreted view

You can do all the same things at the PAT section level that you can at the transport packet level. You can search for errors, get information on the fields and field values, and scroll among the PAT sections contained in the stream.

3. Close this window before you proceed. The analyzer automatically calculates and checks the CRC of the first PAT

section when opening a transport stream file. Select the second PAT shortcut menu command, Check CRC, to calculate the CRC (cyclic redundancy code) of every PAT section in the stream and compare it to the number coded into the section’s CRC field.

4. Click on the PAT icon with the right mouse button and hold the button down

to show the PAT shortcut menu. Highlight the Check CRC command and release the button. If no erroneous CRCs are found, the analyzer creates the dialog box shown in Figure 2–28.

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Figure 2–28: The CRC Analysis dialog box

5. Click OK to close the dialog box and then close the PAT interpreted view to

continue with the tutorial.

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Additional Information from the PMT Icon

The PMT (Program Map Table) icon, like all others in the hierarchic view, has its own shortcut menu. As with most other icons, you can double-click on the PMT icon to open an interpreted view of PMT sections.

Tutorial: Analyze a Signal

Section

1. Click on the PMT icon with the right mouse button and hold the button

down to take a look at the PMT shortcut menu, as shown in Figure 2–29.

Figure 2–29: The PMT shortcut menu

2. Choose Section from the menu or release the right mouse button and

double-click with the left button to open an interpreted view similar to

Figure 2–30.

Figure 2–30: The PMT interpreted view

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Syntax Analysis

Perform a Syntax Analysis on this PMT section.

1. From the Analysis menu choose Syntaxic, as shown in Figure 2–31.

Figure 2–31: Choosing Syntaxic from the Analysis menu

Syntax analysis checks all PMT sections in the stream for errors and variations from the standard. It searches for errors that are within the PMT itself and relative to the other tables (NIT and SDT for example). The example does not have any PMT syntax errors, as shown in Figure 2–32.

2–24

Figure 2–32: The Syntax Analysis message window

2. Click OK to close the Syntax Analysis message window. Now, the fact that no syntax errors were found in any of the PMT sections does

not guarantee that there are no such errors in the entire stream. Let’s widen the search.

3. Click anywhere on the hierarchic view window to select it. (Or minimize the

PMT interpreted view window; the remaining, hierarchic view window is then automatically selected.)

4. Once again, choose Syntaxic from the Analysis menu. This time, the

analyzer searches the entire stream for errors. If it finds any (and it does in SAMPLE.TRP), it opens a window similar to Figure 2–33.

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Figure 2–33: A message window listing syntax errors

Each line in the message window represents one syntax error. You can doubleclick on a line to open an interpreted view of the item that contains the error. Notice that in this case all errors are in one PES packet. Let’s wait until the discussion of the PES icon to talk about these errors.

5. Close the syntax error message window before you proceed.

Check CRC

You can check the CRCs in all PMT sections through the shortcut menu just as you did with the PAT sections.

You can also check every CRC in the transport stream just like you checked the syntax of all items in the stream:

1. Select the hierarchic view again.

2. Choose Check CRC from the Analysis menu, as shown in Figure 2–34.

Figure 2–34: Choosing Check CRC from the Analysis menu

If CRC errors are found, the analyzer lists the errors in a window similar to Figure 2–33. Because SAMPLE.TRP contains no CRC errors, however, the analyzer displays the message window shown in Figure 2–35.

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Figure 2–35: CRCs in all sections are correct

3. Click OK (or press Enter) to dismiss the CRC analysis message window and

close the interpreted view window before proceeding.

PCR Analysis

PCR (Program Clock Reference) analysis allows you to see a graphical representation of the PCRs versus time.

1. Click on the PMT icon with the right mouse button and hold the button

down to open the PMT shortcut menu, as shown in Figure 2–36.

Figure 2–36: The PMT shortcut menu

2. Choose PCR Analysis from the menu to open a PCR diagram window

similar to Figure 2–37. This diagram shows the first ten clocks in the program.

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Figure 2–37: The PCR analysis display

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3. Double-click on the third clock icon. This brings up the PCR value window

as shown in Figure 2–38.

Figure 2–38: Double-click on the clock icon to list clock values

You can also display the values of all of ten diagrammed PCRs at once.

4. Click the Add View command button in the upper toolbar.

5. Choose PCR Values from the View type submenu, as shown in Figure 2–39.

The analyzer creates a window, similar to Figure 2–40, that lists the values

for all ten PCRs in the diagram.

Figure 2–39: The PCR View Type submenu

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Figure 2–40: The PCR values display

You can navigate among the program PCRs with the command buttons on the lower toolbar.

6. Click the Next command button to show the values of the next ten PCRs

(numbers 11 through 20) in the stream.

T-STD Analysis

7. Select the PCR diagram window again—the window title says: PCR of

SAMPLE.TRP (PID 50, Program 1):1—and notice that the diagram also shows PCRs 11 through 20.

8. Close all windows except the hierarchic view before continuing with the

tutorial.

T-STD analysis checks the selected program against the (transport stream system target) decoder model that is defined in the MPEG-2 standard.

1. Select the Options menu and make sure that Visual TSTD and LTW is

selected as shown in Figure 2–41.

Figure 2–41: Visual TSTD and LTW selected

2. Choose T-STD Analysis from the PMT shortcut menu, as shown in

Figure 2–42.

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Figure 2–42: Choosing T-STD Analysis from the shortcut menu

Because visual mode is selected, the analyzer opens a Buffering Simulation window similar to Figure 2–43. The window contains dynamic bar graphs of the video, audio, and system buffers; the graphs show how full each buffer is at a given point in decoding and change color from blue to yellow to red as buffer overflow approaches and occurs. Notice that the simulation is not real-time and may take several minutes. If you have the time, do watch to see what happens, as SAMPLE.TRP will cause buffer overflows and have errors to report when the simulation in done.

Figure 2–43: The T-STD Buffering Simulation window

3. If you don’t have the time to let the simulation finish on its own, click the

Abort button in the lower-right of the simulation window. The simulation

pauses and you can choose to resume analysis or close the window. Buffer overflows occur near the end of SAMPLE.TRP, and the analyzer opens

the window shown in Figure 2–44. Each line of text in the window represents one error. As the analyzer discovers additional errors, it adds them to the bottom of the list. At the end of analysis, all activity in the Buffer Simulation window stops.

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Figure 2–44: The T-STD error list

4. Close all windows except the hierarchic view before continuing with the

tutorial.

Additional Information from the PES Packet Icon

The PES (Packetized Elementary Stream) packet icon represents all packets that, together, contain a given elementary stream. Individual PES packets are assembled from the payloads of several transport packets. You can learn more about the PES packets and their PTS/DTS (Presentation and Decode Time Stamps) through this icon.

Interpreted View

1. Click on the PID 50 PES icon with the right mouse button and hold the

button down to take a look at the PES shortcut menu, as shown in Figure 2–45.

Figure 2–45: The drop-down menu for the PES icon

2. Choose PES Packets from the menu (or release the right mouse button and

double-click with the left button) to open an interpreted view similar to Figure 2–46.

Notice that the item data (near the top of the window) now includes a Time: entry. This is the time that the first byte of the packet appears in the transport stream, relative to the beginning of the stream. The time is included in all interpreted views that you open after performing an analysis that involve a multiplex rate calculation. Both the PCR analysis and the T-STD analysis, performed while looking at the PMT icon, involve a “mux rate” calculation.

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Figure 2–46: The PES packet interpreted view

This interpreted view offers all of the same options as were given in the previous discussions. Remember the syntax errors the analyzer reported when you performed a “Syntaxic” analysis of the entire stream? They are in a PID 50 PES packet.

3. Click the Next Error button on the lower toolbar. The program checks each

packet in the stream for errors. If it finds an error, it automatically jumps to

the transport packet containing the error. There are several errors in the last

PID 50 PES packet in SAMPLE.TRP, as shown in Figure 2–47. The errors

are highlighted in red on the MTS 210 display.

Figure 2–47: The PES Packet with the errors circled

You can find out more about any error by double-clicking on the field name and its value.

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4. Double-click on the “packet start code prefix” box, as shown in Figure 2–48,

to learn more about the field.

Figure 2–48: Double-click for information about the field

5. Read about the field and then click on the field box once to dismiss the

message window.

PTS/DTS

6. Double-click on the field, as shown in Figure 2–49, to reveal the value

help/error message.

Figure 2–49: Double-click for information for the field value

7. Close the interpreted view window.

PTS/DTS analysis extracts the presentation and decode time stamps embedded in the elementary stream and shows their relative time positions in a graphical display window. Through this display, you can check that all of the time stamps “make sense” (PTS must be later than DTS, and both must be after the associated data arrives) and check for the existence of B fields, which have no DTS.

1. Click on the PID 50 PES icon with the right mouse button and hold the

button down to open the PES packet shortcut menu, as shown in Figure 2–50.

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Figure 2–50: The PID 50 PES shortcut menu

2. Highlight PTS/DTS and release the button. This opens a window containing

a diagram of the first four PTS/DTS “events” in the elementary stream, as

shown in Figure 2–51.

Figure 2–51: The PTS/DTS diagram

NOTE. The diagram in Figure 2–51 reveals some errors in the SAMPLE.TRP PID 50 elementary stream:

 Three of the arrival times do not coincide with the start of the associated

access unit.  Two of the PTS/DTS events involve more than one access unit. Both of these errors suggest problems in the encoding process. See Figure 2–52

for an example of a diagram from a correctly encoded stream.

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Figure 2–52: PTS/DTS diagram from a correctly encoded stream

Table 2–3 lists and explains the icons used in the PTS/DTS diagram.

T able 2–3: PTS/DTS graphic view icons

Icon Represents Double-click for

PCR (program clock reference) V alue

Location in transport stream (TS packet number)

Arrival time of the PTS/DTS Value

Time since the previous PTS/DTS arrived Location in elementary stream (PES packet number)

DTS (decode time stamp) V alue

Location in elementary stream (PES packet number)

PTS (presentation time stamp) V alue

Location in elementary stream (PES packet number)

AU (access unit) Begin time

End time Size in bytes Type of frame (intra, predicted, or bidirection) Reference time

The example timing diagram illustrates several features of a correctly encoded MPEG-2 video stream:

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 Access units arrive one after another, as you can see from the left (“early”)

side of the diagram.

 The order of access unit decoding and presentation is visible in the right

(later) portion of the diagram.

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 Intra (I) and predicted (P) pictures must be decoded before presentation and

therefore have both DTS and PTS. B (bidirection) frames are decoded and

presented at the same time and therefore have only presentation time stamps.  B frames use information in an associated P frame; the P frame must be

decoded before the B frame(s), but is presented after. In the example, then,

the order of frame decoding is IPBB, but the order of presentation is IBBP. As the Table 2–3 heading indicates, you can get more information about the

various objects in the diagram by double-clicking on the icon.

3. Double-click on the first arrival icon to reveal its values, as shown in

Figure 2–53.

Figure 2–53: Information about the first arrival time

4. Click within the PTS/DTS diagram window, but outside of the Arrived value

window, to dismiss the value window.

5. Double-click on the first AU icon, as shown in Figure 2–54, to learn more

about the access unit.

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Figure 2–54: Information about the first access unit

Viewing PSI/SI Data

Just as you did with interpreted views, you can navigate among the time stamps of an elementary stream with the lower toolbar command buttons (and the equivalent commands in the Edit menu).

6. If you wish, experiment using the lower toolbar command buttons to move

among all the time stamps in the elementary stream (or at least the part of the stream that was saved in SAMPLE.TRP).

7. When you are ready, close all windows but the hierarchic view of

SAMPLE.TRP and continue with the tutorial.

1. If possible, open a DVB (Digital Video Broadcast) transport stream file. If

you do not have such a file available, continue with the original file, SAMPLE.TRP.

2. Select the Options menu and choose DVB if it isn’t already check-marked

(✓), as shown in Figure 2–55.

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Figure 2–55: The check mark indicates that DVB is selected

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3. Select the hierarchic view, if necessary, and then choose PSI/SI from the

Selection menu. The dialog box shown in Figure 2–56 appears.

Figure 2–56: The PSI/SI Selection dialog box

NOTE. Annuler is the Cancel button for this dialog box.

4. Click NIT as shown in Figure 2–56.

5. Click OK to open an interpreted view of the first NIT section in the stream

as shown in Figure 2–57. The exact appearance of the view will depend on

the configuration of your particular DVB stream.

NOTE. You can also open this view by double-clicking on the NIT icon or by selecting Section from the icon shortcut menu.

Figure 2–57: The NIT section interpreted view

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6. Double-click on a descriptor field, if the NIT contains them, as shown in

Figure 2–58. The resulting descriptor message box contains an ASCII decode of the network information associated with the transport stream.

Figure 2–58: Double-click for an ASCII decode of the descriptor

Automatic Analysis

You can use the same technique to view descriptor information in any DVB table in the stream.

7. Close the NIT section window.

In the course of this tutorial, you have used the MPEG-2 System Analyzer to perform several kinds of analysis on various stream elements. The analyzer also has an automatic analysis feature that simplifies evaluation of the entire transport stream, yet still permits detailed analysis of many types of error.

The following procedure assumes that you still have the hierarchic view of SAMPLE.TRP open on your MTS 210 display. If you closed that window to view a DVB stream in the last section of this tutorial, open SAMPLE.TRP again before you continue.

1. Choose Automatic analysis from the Options menu. The dialog box shown

in Figure 2–59 appears.

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Figure 2–59: The automatic analysis Options dialog box

2. By default, automatic analysis includes all the listed tests. Automatic

analysis takes several seconds to several minutes, depending on the size and

complexity of the file, speed of your MTS 210, and the number and type of

analyses selected through this dialog box. Dynamic analysis, the last

selection in the dialog box, takes much longer than all other tests combined.

If you are following this exercise to familiarize yourself with the analyzer,

click on the Dynamic check-box to de-select Dynamic analysis.

NOTE. The MPEG-2 System Analyzer can conduct three kinds of Dynamic analysis: T-STD (transport stream target decoder), LTW (legal time window), and Smoothing Buffer. Automatic analysis includes only T-STD analysis; the remaining dynamic analyses must be performed manually. Refer to the Reference section of this manual for more information about Dynamic analysis.

3. Choose OK to confirm the selections and close the dialog box.

4. Choose Automatic from the Analysis menu. The window shown in

Figure 2–60 appears. This Automatic analysis window contains a table that

shows the progress and results of the various tests. As the analysis sequence

proceeds, cells in the Status column change from blank to Running to

Completed. As each test is completed, either OK or Errors (in red) appears in

the corresponding Result cell, depending on the results of the analysis.

If you wish to end the analysis at any time, click Abort after current task, at

the bottom of the window.

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Figure 2–60: The automatic analysis window

5. When all analyses are complete, the Automatic analysis window provides

access to detailed information about each detected error. For a list of the syntax errors in SAMPLE.TRP, for example, double-click in the Syntaxic Result cell, as shown in Figure 2–61. A window that lists the errors appears in the Analyzer application window; the window listing the syntax errors in SAMPLE.TRP is similar to Figure 2–62.

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Figure 2–61: Double-click for error details

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Figure 2–62: The list of syntax errors found in SAMPLE.TRP

Double-clicking on a listed syntax, PCR, PTS/DTS, or semantic error leads to even more information about the error.

6. Double-click on a syntax error, as shown in Figure 2–62, to open a window

resembling Figure 2–63. This window contains an interpreted view of the

section (in this case, a PES packet) that contains the error. Red characters (on

the PC monitor) indicate syntax errors.

Figure 2–63: Interpreted view of a PES packet with syntax errors

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This is a good opportunity to review some of the techniques you can use to learn more from an interpreted view.

 Each “block” in the interpreted view represents a field of data. The field

value (or number of bytes in a data field) appears below the field name. Press

F2 key to toggle the value between decimal base and hexadecimal base.

the

 Double-click on a field name for more information about the field.

 Double-click on a data field name to add a byte-by-byte hexadecimal view of

the interpreted view.

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 Double-click on the field value/size to reveal additional information about

the value and error, if any.

7. Return to step 5 and double-click in the remaining “Error” results cells. The

type of display and information available is the same as when the individual

analysis is conducted manually (by selecting it from the Analysis menu).

Refer to the Reference section for more information about each type of

analysis.

Quitting the Analyzer

This completes the tutorial for the MPEG-2 System Analyzer. Exit the application by choosing Exit from the File menu.

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Tutorial: Creating an MPEG-2 Transport Stream

This section explains how to create an MPEG-2 transport stream. First, you will make a simple transport stream file, then a significantly more complex one. Finally, this section gives a brief introduction of how to send the signal that you created out one of the ports on the MTS 210 rear panel as an actual transport stream. There is an optional tutorial following this one that explains how to build a transport stream file that contains DVB (Digital Video Broadcast) information.

This section steps you through the Multiplexer, Edit Table, and Disk Manager applications. These procedures are “step-by-step,” so you can follow along with your own instrument. You will use files provided with the MTS 210.

NOTE. To aid in following along with your own MTS 210, all steps requiring action are numbered.

Terms

Start the Multiplexer

There are two specific terms used in this section that are not interchangeable: transport stream and transport stream file.

A transport stream is the signal that comes out (or in) one of the connectors on the rear panel of the MTS 210.

A transport stream file is a file on a disk. When the MTS 210 sends this file out one of the rear-panel connectors (properly timed), it becomes a transport stream.

Click on the Multiplexer name in the Tektronix MPEG Test System submenu. This starts the Multiplexer application as shown in Figure 2–64.

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Title bar

Menu bar

Tool bar

Status bar

Figure 2–64: The Multiplexer application window

Making a Simple Transport Stream File

1. Choose New from the File menu or the New command button from the tool

bar. This results in the New configuration file box shown in Figure 2–65.

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Figure 2–65: The New configuration file dialog box

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Notice that you are not going to make a transport stream file right away, but rather a configuration file. Since transport stream files can be huge, they are not generated immediately. Instead, configuration files (*.cfg) are created first. These contain all of the information required to make the transport stream. (For more information on how they work, please see File Conventions, beginning on page 3–59.)

2. Enter the name “simple” in the File Name text box (the *.cfg extension is

added automatically).

3. Choose OK. The Multiplexer application now displays the default configura-

tion file. (See Figure 2–66.)

Rate gauge

Duration gauge

Multiplex window

Figure 2–66: The default configuration in the application window

The Multiplex application window has three parts: the Duration gauge, the Rate gauge, and the Multiplex window.

The Duration gauge gives the status of the multiplex operation. The gauge sits at 0% until you tell the application to create the transport stream file. Since this process often takes some time, the Duration gauge tells what percentage of the operation is complete.

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The Rate gauge shows the percentage of the available transport stream currently used. Above the rate gauge bar the target multiplex rate. Below the rate gauge is the amount currently in use, the actual rate. The actual rate is calculated with the following formula:

Rate = PSI rate + SI rate + Video rate + Audio rate + Data rate Below the actual rate is the time period when the highest multiplex rate occurs. The Multiplex window displays the current configuration file in hierarchic form.

Several icons appear in the Multiplex window to represent specific elements of the transport stream multiplex. Table 2–4 explains these icons.

T able 2–4: The icons in the multiplexer hierarchic view

Icon Meaning

Multiplex — the main icon for the configuration file.

БББББББББББББББББББ

Required.

Program Specific Information (PSI) — contains the data that allows the

БББББББББББББББББББ

demultiplexing of the programs by decoders.

БББББББББББББББББББ

Required.

БББББББББББББББББББ

Program Association Table (PAT) — This is the main PSI table. It links the program numbers and the Program Map Table (PMT) PID.

БББББББББББББББББББ

Every transport stream must have a PAT that is always PID0. This table is

БББББББББББББББББББ

required to identify the PID numbers for the table(s) defining each program.

БББББББББББББББББББ

Required. Program Map Table (PMT) — Specifies the PID values and describes the

БББББББББББББББББББ

program components.

БББББББББББББББББББ

There is a PMT for every program in the transport stream. The table states the

БББББББББББББББББББ

PID for each elementary stream associated with a specific program. There are

БББББББББББББББББББ

no specific PID values for PMT s, however certain transmission systems (such as Grand Alliance and DVB) require specific values.

БББББББББББББББББББ

Required. Service Information (SI) — provides information on services and events carried

by different multiplexes or even on other networks. It has up to four tables below

БББББББББББББББББББ

it: NIT, BAT, SDT, and EIT.

БББББББББББББББББББ

Required if using DVB.

БББББББББББББББББББ

Network Information Table (NIT) — provides information about the physical network.

БББББББББББББББББББ

Required. It is found under PSI if not in DVB mode and under SI if in DVB

БББББББББББББББББББ

mode.

БББББББББББББББББББ

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T able 2–4: The icons in the multiplexer hierarchic view (Cont.)

Icon Meaning

Bouquet Association Table (BAT) — provides information regarding bouquets (a

БББББББББББББББББББ

collection of services marketed as a single entity).

БББББББББББББББББББ

Optional (for DVB). Service Description Table (SDT) — contains data describing the services in the

БББББББББББББББББББ

system, for example, names of services, the service provider, etc.

БББББББББББББББББББ

Optional (for DVB). Event Information Table (EIT) — contains data concerning events and programs

БББББББББББББББББББ

(a concatenation of one or more events under the control of a broadcaster),

БББББББББББББББББББ

such as event name, start time, duration, etc.

БББББББББББББББББББ

Optional (for DVB). Program

БББББББББББББББББББ

Required — Each transport stream is required to have at least one program with

БББББББББББББББББББ

one elementary stream.

Add Elementary Streams

Video Elementary Stream

БББББББББББББББББББ

Optional (must be at least one elementary stream in the program).

БББББББББББББББББББ

Audio Elementary Stream

БББББББББББББББББББ

Optional (must be at least one elementary stream in the program).

БББББББББББББББББББ

Data Elementary Stream

БББББББББББББББББББ

Optional (must be at least one elementary stream in the program).

БББББББББББББББББББ

The simplest transport stream possible would have one program with one elementary stream in it. In this example, you will put two elementary streams in one program.

Add an elementary stream to program 1.

1. Select the program 1 icon.

2. Click the Add (+) command from the tool bar (or choose the Add command

from the Edit menu). This opens the dialog box shown in Figure 2–67.

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Figure 2–67: The Stream to Add dialog box

3. Select the Video option button and click OK (you will eventually add one

elementary stream of each type). This adds a Video icon to program 1 as

shown in Figure 2–68.

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Figure 2–68: The hierarchy with a video icon added to program 1

4. Repeat this procedure (click the Add button, select a type of stream, and

click OK) twice to add an Audio icon and a Data icon to the hierarchy. The

application window resembles Figure 2–69 when you are done.

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Figure 2–69: The hierarchy with the audio and data icons added

Next, associate elementary stream files with the video, audio, and data icons.

5. Double-click on the video icon. This opens the Video Stream dialog box

shown in Figure 2–70.

Figure 2–70: The Video Stream dialog box

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6. Click the Browse button. This allows you to select a video elementary

stream from existing files throught the Video Stream Selection dialog box.

(See Figure 2–71.)

Figure 2–71: The Video Stream Selection dialog box

7. Select c:\mts100\video\625\MOBL_060.MP2, as shown in Figure 2–71.

8. Click OK.

NOTE. The List Files of Type box in the Video Stream Selection dialog box does not specify the .mp2 file extension. However, you may not select “just any file” for use as a video elementary stream file. If you select an unacceptable file, you will see the message box shown in Figure 2–72.

Figure 2–72: Click OK and select another (.mp2) file

All the information about the video elementary stream file loads automatically into the Video Stream dialog box, as shown in Figure 2–73.

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Figure 2–73: Details of the selected video elementary stream

Only four parameters (Elementary Stream Rate, PES Packet Size, Elementary Stream Initial Delay, and Offset DTS) are editable. If you would like more information on these fields, please refer to Selecting a Video Stream, beginning on page 3–91 of this manual.

9. Click OK to accept the settings and close the dialog box. The lower portion

of the Multiplexer application window now resembles Figure 2–74. Notice that mobl_060.mp2 is now associated with the video icon. Note too, that the Multiplex Rate gauge is beginning to fill.

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Figure 2–74: The display after a video file is associated

Now associate an Audio elementary stream file with the Audio icon.

10. Double-click on the audio icon. This opens the Audio Stream dialog box

shown in Figure 2–75.

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Figure 2–75: The Audio Stream dialog box

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11. Click the Browse button to open the Audio Stream Selection dialog box

shown in Figure 2–76.

Figure 2–76: The Audio Stream Selection dialog box

12. Select c:\mts100\audio\10KHZ.MP2.

13. Choose OK. This returns you to the Audio Stream dialog box with all the

information about the 10KHZ.MP2 file entered, as shown in Figure 2–77.

Figure 2–77: Details of the selected audio elementary stream

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Just like the Video Stream dialog box, the Audio Stream dialog box allows you to edit only the parameters near the bottom of the dialog box. (Learn more about these parameters under Selecting an Audio Stream, on page 3–93 of this manual.) The default parameters are acceptable for the current application.

14. Click OK to select the settings and close the dialog box. This returns you to

the hierarchic display of the configuration file as shown in Figure 2–78.

Figure 2–78: The display after an audio file is associated

Notice that 10KHZ.MP2 is now associated with the Audio Icon and the Multiplexer Rate gauge is now a little closer to full with the addition of the audio stream.

You would follow a similar procedure to associate a file with the Data icon.

15. Double-click on the Data icon to open the Data Stream dialog box as shown

in Figure 2–79.

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Figure 2–79: The Data Stream dialog box

Notice that this dialog box does not have as much information in it as the Video Stream and Audio Stream dialog boxes. This is because it does not require elementary streams — a file of any type is acceptable.

16. Click Cancel to close this dialog box without entering a file.

17. Select the Data icon again. This time you will delete it.

18. Choose either the Delete (–) command button from the tool bar or Delete

from the Edit menu and click Yes when the dialog box shown in Figure 2–80 appears. The hierarchy now resembles Figure 2–81.

Figure 2–80: Click Yes to delete the data stream icon

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Figure 2–81: The hierarchy with the Data icon deleted

19. Choose Save from the File menu to save the configuration file.

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Tektronix Option 1A, 1G, AG MTS215 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

User Manual

WARRANTY

Table of Contents

List of Figures

List of Tables

General Safety Summary

Injury Precautions

Symbols and Terms

Preface

Product Description

Analyzer

Multiplexer

PSI and SI Table Editor

Channel Coder

Packet Jitter

Accessories

Installation

Supplying Power

Software Enable Key

ECL control port

ECL Parallel/Serial I/O Port

Clock Input

First Time Operation

Operating Basics

CD ROM

Menu Bar

Upper Toolbar

Lower Toolbar

The Interpreted View

The Hexadecimal View

PID Map

Multiplex Allocation

Section

Syntax Analysis

Check CRC

PCR Analysis

T-STD Analysis

Interpreted View

PTS/DTS

Tutorial: Creating an MPEG-2 Transport Stream

Add Elementary Streams