Ancillary Data Monitoring

Broadcast Data Analysis

Understanding ANC Data

ANC Data Inspector

Aspect Ratio & AFD

Closed Caption Monitoring

Agenda

Advanced Ancillary Data Analysis 2

SMPTE Standards

SMPTE 291M - Ancillary Data Packet and Space Formatting

Defines format of ANC Data Packet

Defines location and spacing of ANC Data

SMPTE RP291 - Assigned Ancillary Identification Codes

Defines DID and SDID for various ANC Data Packets


Ancillary Data Space


H

AN

C

VANC

Ancillary Data Format

ADF Ancillary Data Flag 000h,3FFh,3FFh

DID Data Identification Word

DBN Data Block Number - for Type I

SDID Secondary Data Identification - for Type 2

DC Data Count

User Data Words up to a maximum of 255 words

CS Checksum


(000h)

(3F

Fh)

(3F

Fh)

DID

SD

ID

CS

DC

DB

N

User Data

Words

(max 255)


Ancillary Data Format - DataList

SMPTE RP 291 Examples

Defines a variety of standard DID and SDID used in Standards Today


Standard Description DID DBN / SDID DC

SMPTE 291M Undefined Data 00 h (200 h) xxx / 00 h (200 h)

SMPTE 291M 8 Bit Application 04 h (104 h) 10 h (110h) xxx

SMPTE 291M Packet Marked for

Deletion

80 h (180 h) xxx / 00 h (200 h) xxx

SMPTE 291M Start packet 88 h (288 h) xxx / 00 h (200 h)

SMPTE 291M End Packet 84 h (284 h) 00 h (200 h) 00 h (200 h)

SMPTE 291M User Defined C0 h (2C0 h) xxx xxx

SMPTE 291M Metadata Packet F0h (2F0h) xxx xxx

SMPTE 291M LTC Timecode F5h (2F5h) 00 h (200 h) 08 h (108h)

SMPTE 352M Payload

Identification

41h (141h) 01h (101h) 04h (x04h)

RP188 VANC Timecode (ATC) 60h (260h) 60h (260h) 10h (110h)

RP196 HANC Timecode (LTC) 64h(164h) 64h (164h) 8h (108h)

RP196 HANC Timecode (VITC) 64h (164h) 7Fh (17Fh) 9h (209h)

RP165 EDH (Error

Detection

Handling)

F4h (1F4h) 00h (200h) 10h (110h)

DID and SDID for HD and SD Embedded Audio

Standard Definition SMPTE 272M

Audio

Channels

Audio Data

Packet

Extended

Data Packet

Audio

Control

Packet

Group 1 1-4 2FFh 1FEh 1EFh

Group 2 5-8 1FDh 2FCh 2EEh

Group 3 9-12 1FBh 2FAh 2EDh

Group 4 13-16 2F9h 1F8h 1ECh

High Definition SMPTE 299M

Audio

Channels

Audio Data

Packet

Audio

Control

Packet

Group 1 1-4 2E7h 1E3h



Group 4 13-16 2E4h 1E0h

8 Advanced Ancillary Data Analysis


Ancillary Data Inspector

Watch List

Easily identifies all ANC

Data present within the

signal

Provides Error Checking

Press MAG

Displays ANC data

packet information

Supports All ANC Data

types


Ancillary Data Inspector - CaptureVu

CaptureVu

Captures 1 Frame of

Data

Allows review of each ANC

Data Packet for all present

ANC Data

CaptureVu Utility

Simple DOS based conversion utility

Available on Tektronix website

Converts *.CAP files to the following 0 Converts the *.CAP file to a *.TXT file for use other applications

1 Converts the *.CAP file to a *.CSV file for use in Excel spreadsheet

2 Converts the *.CAP file to a *.PIC file for download to the TG700


Understanding ANC Data Types SMPTE 352M Video Payload ID

Understanding ANC Data Example

SMPTE 352M Video Payload Identification

ADF 000h, 3FFh, 3FFh

DID 241h (41)

SDID 101h (01)

DC 104h ( (04)

User Data 4 Words

Checksum

4 Data Words carry following information


(000h)

(3F

Fh)

(3F

Fh)

DID

SD

ID

CS

DC

4 User Data

Words

(max 255)

Bits Byte 1 Byte 2 Byte 3 Byte 4

Bit 7 1 Interlaced (0) or

Progressive (1) transport Reserved Reserved

Bit 6 0 Interlaced (0) or

Progressive (1) picture

Horizontal Y/Y sampling 1920 (0) or 2048 (1)

Reserved

Bit 5 0 Reserved Reserved Reserved

Bit 4 0 Reserved Reserved Dynamic range 100% (0h),

200% (1h), 400% (2h),

Reserved (3h) Bit 3 1

Picture Rate

(see SMPTE 352M table 2)

Sampling structure

(see SMPTE 352M table 3

and NOTE 1)

Bit 2 0 Reserved

Bit 1 0 Bit depth

8-bit (0h), 10-bit (1h), 12-bit

(2h), Reserved (3h) Bit 0 1

SMPTE 352M - Table 2 & 3

Value Frame Rate Value Frame Rate Value Frame Rate Value Frame Rate

0h No defined

value 1h Reserved 2h 24/1.001 3h 24

4h 48/1.001 5h 25 6h 30/1.001 7h 30

8h 48 9h 50 Ah 60/1.001 Bh 60

Ch Reserved Dh Reserved Eh Reserved Fh Reserved


Value Sampling Value Sampling Value Sampling Value Sampling

0h 4:2:2

[default]

(Y/Cb/Cr)

1h 4:4:4

(Y/Cb/Cr) 2h

4:4:4

(G/B/R) 3h 4:2:0

4h 4:2:2:4

(Y/Cb/Cr/A) 5h

4:4:4:4

(Y/Cb/Cr/A) 6h

4:4:4:4

(G/B/R/A) 7h Reserved

8h 4:2:2:4

(Y/Cb/Cr/D) 9h

4:4:4:4

(Y/Cb/Cr/D) Ah

4:4:4:4

(G/B/R/D) Bh Reserved

Ch Reserved Dh Reserved Eh 4:4:4

(XYZ) Fh Reserved

Table 2 Byte 2 Frame Rate

Table 3 Byte 3 Sampling Structure


SMPTE 352M packet

quickly identified in the

stream

Indicates line locations of

ANC Data packets

MAG shows data bytes

Ancillary Data Inspector SMPTE 352M


89h

1080-line video payloads on a

Level A 2.97 Gb/s (nominal)

serial digital interface

CAh Ch Progressive Transport &

Picture

Ah 60/1.001

00h 0h 1920

0h 4:2:2 [default] (Y/Cb/Cr)

01h Dynamic range 100% (0h)

Bit Depth 10-bit (1h)

Video Session Display Interprets SMPTE 352M

Understanding ANC Data Types SMPTE 2016 AFD Active Format Description - Aspect Ratio

SMPTE 2016-1 Format for Active Format Description and Bar Data

SMPTE 2016-2 Format for Pan-Scan Information

SMPTE 2016-3 Vertical Ancillary Data Mapping of Active Format Description and Bar Data

SMPTE 2016-4 Vertical Ancillary Data Mapping of Pan-Scan Information

SMPTE 2016-5 KLV Coding for Active Format Description, Bar Data, and Pan-Scan Information

ATSC A/53 AFD Carriage in MPEG2

CEA-CEB16 Digital Receiver Guidelines

Standards Documents

18 18 Advanced Ancillary Data Analysis


It is to be used by Broadcasters, CATV, and Satellite providers to dynamically control how down-conversion equipment formats

widescreen 16:9 pictures for 4:3 displays.

In-house Down convert from HD to SD

Set-Top-Box down convert and Display of HD as SD

SMPTE 2016-3 AFD

ADF 000h, 3FFh, 3FFh

DID 241h (41)

SDID 205h (05)

DC 108h (08)

User Data 8 Words

Checksum


(000

h)

(3F

Fh)

(3F

Fh)

DID

SD

ID

CS

DC

4 User Data

Words

(max 255)


SMPTE 2016-3 AFD

8 Data Words carry following information

b6-b3 AFD code data bits: a3, a2, a1, a0

b2 Aspect ratio (AR) of the coded frame: '1' = 16:9, '0' = 4:3


UDW Function b9 b8 b7 b6 b5 b4 b3 b2 b1 b0

1 AFD B8 P 0 a3 a2 a1 a0 AR 0 0

2 Reserved B8 P 0 0 0 0 0 0 0 0

3 Reserved B8 P 0 0 0 0 0 0 0 0

4 Bar Data Flags B8 P Top Bot Left Right 0 0 0 0

5 Bar Data Value 1 B8 P f15 f14 f13 f12 f11 f10 f9 f8

6 Bar Data Value 1 B8 P f7 f6 f5 f4 f3 f2 f1 f1

7 Bar Data Value 2 B8 P s15 s14 s13 s12 s11 s10 s9 S8

8 Bar Data Value 2 B8 p s7 s6 s5 s4 s3 s2 s1 s0

AFD representations for images in a 4:3 coded frame

21 21 Advanced Ancillary Data Analysis


Aux Status display

provides summary

Picture Display shows

presence & graticule

ANC Data Inspector shows

location of ANC packet

Ancillary Data Monitoring SMPTE 2016


ANC Data Inspectors

quickly identifies presence

of SMPTE 2016 packet

Detailed view shows Line &

Field location

AFD shall be located in the

active line portion of VANC

In this case wrong line is

used

Allows user to verify how

many packets are present

Ancillary Data Inspector SMPTE 2016

Understanding ANC Data Types Closed Caption EIA708/608 & SMPTE 334

Closed Caption


Closed Captions can be enabled by viewer within the program material.

Closed Caption Standards

Closed Caption is defined by the following standards CEA 608 for standard definition analog NTSC

CEA 708 for Digital Television (DTV)

SMPTE 334-1 Vertical Ancillary Data Mapping of Caption Data and Other Related Data

SMPTE 334-2 Caption Distribution Packet (CDP) Definition

SMPTE EG 43 System Implementation of CEA 708 and CEA 608 Closed Captioning

Standard available from www.ce.org and www.smpte.org


Analog NTSC Closed Caption

CEA 608 defines analog Closed Captioning

Data added to Line 21 of Field 1 and Field 2

Signal contains clock and two data bytes

Data rate of 120 Bytes per second or 960 bits per second

CEA 608 can carry services CC1-4 and TXT 1-4

In SD-SDI analog signal can be digitized as part of the active

video or carried as ANC Data

Packet.


Digital Television Closed Caption

CEA 708 defines Digital Television Closed Captions


DTV

Bitstream

Audio

Video

MPEG

Control

User

Data

Bits

DTVCC

Transport

Channel

PMT

EIT

NTSC Caption CEA 608

DTVCC Caption Channel Caption Service 1

Caption Service n

DTVCC Service Directory

DTVCC Service Directory

Supports backward compatibility with CEA 608

Maximum data rate of 9600bps

Configuring Closed Caption Decoding

How to Configure Closed Caption Decoding


Select one of the

tiles and press

PICT button

Push and Hold

PICT button to

access menu

Navigate to CC/

Teletext format

Select CEA 708

Repeat process

for another tile and

select CEA 608

Understanding Auxiliary Data Status Display


Select one of the

tiles and press

Status button

Push and Hold

Status button to

access menu

Navigate to

Display Type and

select Aux Data

Status

Configuring CEA

608 selections

Press CONFIG

button

Navigate to Aux

Data Settings

Select CEA 608

Settings

Select CEA 608

Transport

Auto

Line 21,

S334(RAW)

S334(CDP)

How to Configure Closed Caption Decoding


Configure one Tile

to decode CEA 708

Configure another

tile for to decode

CEA 608

Multiple Language

Captions

Select one Tile for

CC1 or Service 1

Select another Tile

for CC3 or Service 2

Simultaneous Closed Caption Display


CEA 708 CEA 608

Troubleshooting Closed Caption Problems

Closed Caption Problems

Picture Display not decoding Closed Captions

Verify that CC is enabled and the correct service is selected

Check Aux Data Status for presence of Closed Captions

Is V-Chip rating present and set correctly?

Does the frame rate of closed caption match video frame rate

Mismatches in frame rate can cause encoder problems

May need to delve into the ANC data packet


In-Picture closed

caption decode

Check V-Chip rating

Aux Data Status

Shows presence

Shows Number of

services

ANC Data Inspector

Shows presence of

ANC data packets

Tools to use for Troubleshooting Closed Caption


Select one of the tiles

and press MEASURE

button

Push and Hold

MEASURE button to

access menu

Navigate to Display

Type and select ANC

Data Display

Press Full to display

ANC Data Display

Navigate to Closed

Caption data and

press MAG

ANC Data Inspector and Closed Caption Data


Understand Closed Caption ANC Data

Closed Caption ANC Data

CEA 608 ANC Data

DID 161h (0x61h)

SDID 102h (0x02h)

Active line portion of VANC at least 2 lines after switching point

Relatively Simple contains a Line ID and the 2 bytes of data per field

CEA 708 ANC Data

DID 161h (0x61h)

SDID 101h (0x01h)

Active line portion of VANC at least 2 lines after switching point

Line 9 of Field 1 or 2.

Multiple types of data can be present within data stream


Closed Caption Data Stream

SMPTE 334 CDP 708 stream can contain the following data types

CDP Header (required) 0x9669 (296h, 269h)

Timecode (optional) 0x71 (271h)

CDP CC Service Information (optional) 0x73 (173h)

CDP Footer Section (required) 0x74 (274h)

CDP CC Data Section (optional) 0x72 (272h)

Closed Caption data types

CEA 608 field 1 0xFC (2FCh)

CEA 608 field 2 0xFD (1FDh)

CEA 708 DTVCC Packet Data 0xFE (1FEh) CC 1 Valid

CEA 708 DTVCC Packet Start 0xFF (2FFh) CC 1 Valid

CEA 708 DTVCC Packet Data 0xFA (2FAh) Invalid 0


Interpreting Closed Caption Data Stream




Data Sync 296 269 (0x9669h)

CC Data Section 272 (0x72h)

CEA 608 CC1 2FC (0FCh)

CEA 608 CC2 1FD (0xFDh)

CEA 708 DTVCC Start Header 2FF (0xFFh)

CEA 708 DTVCC Header 1FE (0xFEh)

CEA 708 DTVCC Inactive 2FA (0xFAh)

Services Information Section 173 (0x73h)

CC Footer Section 274 (0x74h)

Timecode 171 (0x71h)

Ancillary Data is becoming more prevalent within SDI for a variety of functions.

Embedded Audio, Video Payload ID

Ancillary Data Inspector simplifies ANC Data monitoring Easily shows what ANC data is present within the SDI signal

43 Advanced Ancillary Data Analysis



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