Nielsen ID3 Manuale utente

Nielsen Confidential

ID3 Tag Validator Application

User Guide

Release 1.8 Revision F

ID3 Tag ValidatorApplication UserManual

Release1.8 RevisionF 1 Nielsen Confidential

Nielsen and the Nielsen Logo are trademarks or registered trademarks of The Nielsen Company (US), LLC.

Other company names, products and services may be trademarks or registered trademarks of their respective

companies.

This documentation contains the intellectual property and proprietary information of The Nielsen Company (US), LLC.

Publication, disclosure, copying, or distribution of this document or any of its contents is prohibited.

Detailed Revision History

Revision Date Changes Made Responsible Engineer

A 2015-01-26 Initial Draft Lois Price

B 2015-05-15 Revised for Release 1.5 Lois Price

Pre-release 2016-02-03 Revised for beta release of 1.7 Lois Price

Lore Eargle (editor)

C 2016-02-08 Production release of 1.7 Lois Price

Lore Eargle (editor)

D 2017-04-05 Internal Release of 1.8: added MPEG-DASH Lois Price

Lore Eargle (editor)

E 2017-06-29 Updated Figure 3 – Summary Reports Contents and

Figure 5 – SID List Contents Lois Price

Lore Eargle (editor)

Harish GP (reviewer)

F 2017-09-27 Clarified examples of –d, -df, and –dr input segment

designators Lois Price

Lore Eargle (editor)

Harish GP (reviewer)

Julia Wen (reviewer)

ID3 Tag ValidatorApplication UserManual

Release1.8 RevisionF 2 Nielsen Confidential

Contents

Overview..........................................................................................................................................................................................6

Purpose ..........................................................................................................................................................................6

Customer Support.............................................................................................................................................................6

Intended Audience............................................................................................................................................................7

Terminology......................................................................................................................................................................7

Related Documents...........................................................................................................................................................7

Using Validator in the Transcoder Certification Process ...........................................................................................................8

Pre-Validation Checklist.................................................................................................................................................................9

Running the Validator Application..............................................................................................................................................12

Basic Instructions............................................................................................................................................................12

Optional Parameters.......................................................................................................................................................14

Output Folder Specifier (-o).............................................................................................................................14

Report Type Specifier (-p)...............................................................................................................................14

Program Number Specifier (-n).......................................................................................................................15

Using Validator Output.................................................................................................................................................................15

Validator Output: Summary Report.............................................................................................................................................16

Overview ........................................................................................................................................................................16

File Header......................................................................................................................................................................17

Description and Example................................................................................................................................17

Diagnostic Tips................................................................................................................................................17

SID List ........................................................................................................................................................................18

Description ......................................................................................................................................................18

Examples.........................................................................................................................................................19

Diagnostic Tips................................................................................................................................................19

INFO Tag Listing.............................................................................................................................................................20

Description and Example................................................................................................................................20

Setting Requirements......................................................................................................................................20

Test Results....................................................................................................................................................................21

Test 1 Result: DATA Tag Count......................................................................................................................21

Test 2 Result: Tag Format Test.......................................................................................................................22

Test 3 Result: Sequence Number Test...........................................................................................................23

Test 4 Result: Time Gap Test.........................................................................................................................24

Test 5 Result: Tag Duration Test....................................................................................................................25

Test 6 Result: CID SID Test............................................................................................................................26

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Release1.8 RevisionF 3 Nielsen Confidential

Test 7 Result: CID Timestamp Test................................................................................................................27

Test 8 Result: CID Timestamp (TS) Offset Test..............................................................................................28

Test 9 Result: Breakout Type Test..................................................................................................................29

Test 10 Result: Watermark Time Test.............................................................................................................30

Test 11 Result: Watermark Level Test............................................................................................................31

Test 12 Result: INFO Tag Count.....................................................................................................................32

Tests 14 and 15: INFO TAG CID and Offset Tests.........................................................................................34

Test 16 through 21 Results: INFO Tag Tests..................................................................................................35

Test 22 Result: Tag Placement Check............................................................................................................36

Test 23 Result: Tag-Time Test........................................................................................................................37

Test 24 Result: PES Packet Header Check....................................................................................................38

Test 25 Result: PES Owner-ID Check............................................................................................................39

Test 26 Result: Metadata PES PTS Check.....................................................................................................39

Test 27 Result: PES Header Test...................................................................................................................40

Test 28 Result: PES Incomplete Tag Test......................................................................................................41

Tests 29 and 30 Result: PMT Elementary Stream and Descriptor Checks.....................................................42

Detailed Tag Listing – DATA Tag ................................................................................................................................................43

Tag Number....................................................................................................................................................................44

Transport PID..................................................................................................................................................................44

PTS ........................................................................................................................................................................44

PC CID ........................................................................................................................................................................44

FD CID ........................................................................................................................................................................44

Seconds since FD Day-Start (FD CID Offset).................................................................................................................45

Seconds since PC Day-Start (PC CID Offset) ................................................................................................................45

Break-out Flag.................................................................................................................................................................45

Sequence Number (Seqno)............................................................................................................................................46

Tag Times (First, Last)....................................................................................................................................................46

EDUs (Elemental Data Units)..........................................................................................................................................46

NAES 2 EDU...................................................................................................................................................47

NAES 6 EDU...................................................................................................................................................48

Evaluating EDUs for Inclusion in the Summary SIDList.................................................................................49

Comma-Delimited Tag Listing.....................................................................................................................................................50

Example ........................................................................................................................................................................50

Troubleshooting Tips................................................................................................................................................................... 56

Tag Time Not Advancing Properly..................................................................................................................................56

Background.....................................................................................................................................................56

Symptoms.......................................................................................................................................................56

Possible Causes..............................................................................................................................................56

Suggestions for Follow-up...............................................................................................................................56

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Release1.8 RevisionF 4 Nielsen Confidential

Processing Set to Incorrect Mode (Streaming or MDI)...................................................................................................57

Background.....................................................................................................................................................57

Suggestions for Follow-up...............................................................................................................................57

Missing INFO tags...........................................................................................................................................................57

Background.....................................................................................................................................................57

Symptoms.......................................................................................................................................................57

Suggestions for Follow-up...............................................................................................................................58

Improper Set-up of MPEG Multiplexer............................................................................................................................58

Background.....................................................................................................................................................58

Symptoms.......................................................................................................................................................58

Suggestions for Follow-up...............................................................................................................................58

ID3 Tags Out-of-Sync with Corresponding Audio...........................................................................................................59

Background.....................................................................................................................................................59

Symptoms.......................................................................................................................................................59

Suggestions for Follow-up...............................................................................................................................59

Missing or Invalid INFO Tag Settings..............................................................................................................................59

Background.....................................................................................................................................................59

Missing or Invalid Breakout Type Setting........................................................................................................................60

Background.....................................................................................................................................................60

Suggestions for Follow-up...............................................................................................................................60

Unexpected SIDs in Tags...............................................................................................................................................60

Background.....................................................................................................................................................60

Suggestions for Follow-up...............................................................................................................................60

Checking Tag Synchronization in MPEG-DASH Content..........................................................................................................61

Glossary ........................................................................................................................................................................................62

List of Figures

Figure 1 – Tagging Process............................................................................................................................................................11

Figure 2 – Summary Report Contents............................................................................................................................................17

Figure 3 – Summary Report File Header........................................................................................................................................17

Figure 4 – SID List Contents...........................................................................................................................................................19

Figure 5 – INFO Tag Contents........................................................................................................................................................20

Figure 6 – INFO Tag Tests.............................................................................................................................................................36

Figure 7 – Tags.txt File...................................................................................................................................................................49

List of Tables

Table 1 – Pre-Validation Checklist....................................................................................................................................................9

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Release1.8 RevisionF 5 Nielsen Confidential

Table 2 – -p Option Settings...........................................................................................................................................................14

Table 3 – Default Output Files........................................................................................................................................................16

Table 4 – Interval in Seconds.........................................................................................................................................................19

Table 5 – NAES 2 EDU Description................................................................................................................................................47

Table 6 – NAES 6 EDU Description................................................................................................................................................48

Table 7 –Comma-Delimited Tag Listing Imported into Microsoft Excel with Added Headings.......................................................50

ID3 Tag ValidatorApplication UserManual

Release1.8 RevisionF 6 Nielsen Confidential

Overview

Purpose

As part of its strategy to measure audience viewing of content on consumer devices,

Nielsen supports or endorses a variety of products that generate Nielsen ID3 tags and

insert them into segmented MPEG-2 transport streams or into MPEG-DASH containers.

The Nielsen Validator application (referred to as “Validator”) is a diagnostic tool that

analyzes Nielsen ID3 tags and helps in troubleshooting problems with applications that

generate such tags.

These are six principal ways to use Validator:

•Process a transport stream (TS) with embedded Nielsen ID3 tags (option –t)

•Process an HLS stream with the m3u8 index and transport segments zipped into a

file (option –m)

•Process a file of encrypted ID3 tags such as the output of the PCM-to-ID3 SDK

sample application or the log file of a mobile device that processes Nielsen ID3 tags

(option –r)

•Process specific MPEG-DASH segments in a folder, guided by the user’s command-

line instructions, to guarantee that the segments are processed in the proper order

(-dr option – this is the preferred method of processing MPEG-DASH content)

•Process a set of MPEG-DASH segments that have been merged into a single file

(option –d)

•Process all MPEG-DASH segments in a specific folder that end with a user-defined

extension (option–df)

This manual explains how to use Validator as a diagnostic tool. It focuses on the testing

and debugging of applications that use the PCM-to-ID3 SDK to generate Nielsen ID3

tags. It describes issues that commonly arise during the integration process and how to

resolve them.

In addition, developers who create applications based on the Nielsen ID3 Tag Validator

SDK can use Validator prior to sending their test files for transcoder certification.

Customer Support

Your Nielsen support team welcomes any questions about Validator and its output.

ID3 Tag ValidatorApplication UserManual

Release1.8 RevisionF 7 Nielsen Confidential

Intended Audience

This manual is written for the following users:

•A software developer who has integrated PCM-to-ID3 SDK into an application that

supports Nielsen ID3 Tag generation and who may or may not be submitting their

application or device for Nielsen certification

•A quality-assurance professional who is testing an application into which the PCM-to-

ID3 SDK has already been integrated

Terminology

To properly interpret the output of Validator, you should be familiar with the basic

components of the Nielsen ID3 tag. For an in-depth description of a typical ID3 tag, see

“Detailed Tag Listing – DATA Tag” on page 43.

This manual uses a number of other terms and acronyms that are specific to the process

of generating Nielsen ID3 tags. For definitions, see “Glossary” on page 62.

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