Iec ts 62871 1 2015

IEC TS 62871 1 Edition 1 0 201 5 1 2 TECHNICAL SPECIFICATION Professional video storage products – Tape less camera recorder using MXF file format – Encoding guidelines – Part 1 MXF Operational Patter[.]

IEC TS 62871 - 1

Editio 1.0 2 15-12

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IEC TS 62871- 1

Edit io 1.0 2 15-12

FOREWORD 4

INTRODUCTION 6

1 Sco e 7

2 Normative ref eren es 7

3 Terms, def i ition ,a breviation an con ention 7

3.1 Terms an def i ition 7

3 2 Ab reviation

7 3.3 Con ention 8

4 Overview of the MXF fi e f ormat 8

4.1 General 8

4 2 Fi e stru ture

9 4.2.1 Overview 9

4.2.2 Fi e He der 9

4.2.3 Fi e Body 9

4.2.4 Fi e Fo ter 9

4.3 Partition 9

4.3.1 Overview 9

4.3.2 He der Partition 10 4.3.3 Bod Partition 10 4.3.4 F oter Partition 10 4.3.5 Partition rules s mmary 10 4.3.6 Partition statu 1

4 4 Key-L n th-Value (KLV) codin 1

4.4.1 KLV en odin stru ture 1

4.4.2 KLV Fi Item 1

4.5 He der Metadata 12 4.5.1 Overview 12 4.5.2 Stru tural Metadata 12 4.5.3 Des riptive Metadata 12 4.5.4 Stru ture of He der Metadata 12 4.6 Op rational Pat ern 13 4.6.1 Op ration Pat ern outlne 13 4.6.2 General zed Op rational Pat ern 14 4.6.3 Sp cial zed Op rational Pat ern 15 4 7 In ex Ta le 1

5 5 En odin g idel ne for prof es ional ta e-les camera recorder 15 5.1 General 15 5.2 Op rational Pat ern 16 5.2.1 General 16 5.2.2 Op ration of OP-1a 16 5.2.3 Op ration of OP-Atom 17 Biblogra h 2

Fig re 1 – Overview of MXF f ile stru ture 9

Fig re 2 – Req ired order of fi e comp nents in e c Partition kin 10

Fig re 3 – Key-len th-value en odin 1

Fig re 4 – He der Metadata stru ture 13

Fig re 5 – General zed Op rational Pat ern 14

Fig re 6 – Basic stru ture of Material Pac age an Fi e Pac age in OP-Atom 15

Fig re 7 – Typical example of In ex Ta le placement for OP-1a 17

Fig re 8 – Example-1 to locate the entire In ex Ta le in the Body Partition 17

Fig re 9 – Example-2 to locate the entire In ex Ta le in the He der Partition 17

Fig re 10 – Basic Stru ture of OP-Atom 18

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Storage media, storage data stru ture, storage s stems an eq ipment, of IEC tec nical

commit e 10 : Au io, vide an multimedia s stems an eq ipment

The text of this tec nical sp cification is b sed on the fol owing doc ments:

En uiry draft Re ort o v tin

Ful information on the votin for the a proval of this Tec nical Sp cification can b fou d in

the re ort on votin in icated in the a ove ta le

This publ cation has b en draf ted in ac ordan e with the ISO/IEC Directives, Part 2

The commit e has decided that the contents of this publ cation wi remain u c an ed u ti

the sta i ty date in icated on the IEC we site u der "htp:/we store.iec.c " in the data

related to the sp cific publ cation At this date, the publ cation wi b

• tran formed into an International Stan ard,

• recon rmed,

• with rawn,

• re laced by a revised edition, or

A bi n ual version of this publcation may b is ued at a later date

IMPORTANT – The 'colour inside' logo on the cov r pa e of this publ c tion in ic te

that it contains colours whic are considere to be us f ul f or the cor e t

understa din of its conte ts Us rs s ould th ref ore print this doc me t using a

colour printer

The profes ional camera recorder has evolved f rom a traditional ta e-b sed s stem into a

f ile-b sed s stem, takin ad antage of recent ad an es in information tec nolog In te d of

u in con entional mag etic ta e as the recordin medium, vide an au io stre ms can now

b stored as fi es that can b re d directly by a p rsonal computer (PC)

Several fi e format sp cif i ation exist, an most bro d asters are u in the Material

eXc an e Format (MXF) whic has b en stan ardized by the Society of Motion Picture an

Television En ine rs (SMPTE) As re orted in IEC TR 6 712:2 1 , the MXF fie format has

b en ado ted for variou typ s of profes ional ta e-les camera recorders MXF is b in

u ed by man bro d ast station arou d the world Sin e the MXF fie f ormat provides a

multiplcity of fu ction an o tion in order to satisfy the ne d of variou a plcation in a

range of situation , it is imp rtant to ad res intero era i ty is ues b twe n eq ipment

Therefore, it is es ential for intero era i ty that there is an a pro riate Tec nical

Sp cif i ation that sp cifies g idel nes f or MXF implementation an o erational u age

The IEC 6 8 1 series gives en odin g idel nes for prof es ional ta e-les camera recorders

u in the MXF fi e format to en ure intero era i ty

Future p rts wi b pro osed to sp cify implementation g idel nes a pro riate for sp cific

codec

PROFESSIONA L VIDEO STORA GE PRODUCTS –

ENCODING GUIDELINES –

Part 1: MXF Operational Pat erns

This p rt of IEC 62 71, whic is a Tec nical Sp cif i ation, gives g idel nes for MXF

Op rational Pat ern for profes ional tap -les camera recorders an also outl nes the

general p rts of the MXF fi e f ormat

The g idel nes are a pl ca le to the cre tion of an MXF fi e in profes ional ta e-les camera

recorders They are also a pl ca le f or content management sof tware an to eq ipment that

s p orts MXF fi es generated by profes ional ta e-les camera recorders

The f ol owin doc ments, in whole or in p rt, are normatively ref eren ed in this doc ment an

are in isp n a le f or its a pl cation For dated ref eren es, only the edition cited a ples For

u dated referen es, the latest edition of the referen ed doc ment (in lu in an

amen ments) a pl es

SMPTE ST 3 7-1:2 1 , Mat erial Ex ch n e Format (MXF) – Fil e Format Sp cific tio

SMPTE ST 3 8:2 0 , For Televisio – Material Exch n e Format (M XF) – Op ratio al

Pattern 1a (Singl e Item, Sin l e Pa k g )

SMPTE ST 3 9-1:2 0 , Mat erial Ex ch n e Format (MXF) – MXF Ge eric Co tainer

SMPTE ST 37 -2:2 10, Mat erial Ex ch n e Format (MXF) – MXF Co strain d Ge eric

Co tainer

SMPTE ST 3 0:2 1 , M at erial Exch n e Format (MXF) – Sp cial ized Op ration l Pattern

“OP -Atom” (Simp fied Re rese tat ion of a Sin le Iem)

3 Terms, def initions,abbreviations and conv ntions

3.3 Conv ntion

In this Tec nical Sp cification, ca ital let ers are u ed for terms definin the MXF f ile

stan ardized in the SMPTE publ cation whic are cited in the normative ref eren es

4 Overview of the MXF f ile f ormat

The MXF fi e format is stan ardized in SMPTE, an diff erent asp cts of the detai ed

sp cification are covered in several stan ard The general p rt is sp cified in

SMPTE ST 3 7-1, whic defines the data stru ture of the MXF fi e for the interc an e of

au io-vis al material, al the comp nents of the MXF f ile format an the req irements to

ena le these comp nents to b ad ed as a plu -in to an MXF fi e

The MXF Generic Container is sp cified in SMPTE ST 3 9-1 an SMPTE ST 3 9-2 The

Generic Container is the native Es en e Container of the MXF f ile b d an these stan ard

are defined to ena le the interc an e of stre ma le au io-vis al material Ap ro riate

es en e an metadata p ylo d that can b ma p d into the MXF Generic Container are

defined in as ociated doc ments l sted in the Bibl ogra h

The MXF fie format in lu es Op rational Pat ern sp cif i ation that may define restriction

on the way in whic this Es en e Container typ s ould b implemented For example, OP-1a

is sp cified in SMPTE ST 3 8 an OP-Atom is sp cif ied in SMPTE ST 3 0

4.2 Fi e structure

An overview of the MXF fie stru ture is s own in Fig re 1 The general stru ture of the MXF

f ile comprises thre comp nents: the Fi e He der, the Fi e Body an the Fi e Fo ter

Figure 1 – Ov rview of MXF fi e structure

4.2.2 Fi e He der

The Fie He der is located at the start of the MXF f ile an in lu es a He der Partition Pac

an a He der Metadata The fi e he der may in lu e a Ru -In an an In ex Ta le as an

o tion

4.2.3 Fi e Body

The Fi e Body provides the mec anism f or emb d in Es en e Data s c as au io, vide an

other as ociated data within the MXF fies The Fi e Bod contain zero or more Es en e

Containers an , if there is more than one Es en e Container in the Fie Bod , the Es en e

Containers are multiplexed together u in Partition (se 4.3) Furthermore, the fie b dy may

in lu e an in ex ta le an a re etition of the He der Metadata as an o tion

4.2.4 Fi e Fo ter

The Fie Fo ter is located at the en of the f ile As s own in Fig re 1, the Fi e Fo ter in lu es

a Fo ter Partition Pac It may in lu e a re etition of the He der Metadata an a Ran om

In ex Pac The Fi e F oter may also in lu e o tional In ex Ta le Segments

4.3 Partitions

Partition logical y divide the MXF fi e to al ow e sier p rsin , to help stre min an to

manage the cre tion of In ex Ta les As s own in Fig re 2, there are thre kin s of Partition

in the MXF f ile The explanation of e c Partition is des rib d in the fol owin section

Fig re 2 – Re uire ord r of f ile compone ts in e c Partition kin

4.3.2 He der Partition

The He der Partition is the f irst Partition of the MXF fi e, an is located at the start of the MXF

f ile fol owin the o tional Ru -In p c The Fi e He der of the MXF fi e alway in lu es one

He der Partition

4.3.3 Body Partition

The MXF f ile has zero or more Body Partition As s own in Fig re 2, the Bod Partition Pac

is located at the start of the Body Partition

The logic des ribin Partition , Es en e Containers can b s mmarized as fol ows

– The Fi e b d contain zero or more Es en e Containers

– The Es en e Container can b identified by a non-zero Stre m ID value caled the

Bod SID

– The Es en e Container can b segmented into one or more Partition

– The Partition containin data f rom a p rtic lar Es en e Container has the same value of

Bod SID

– The order of Es en e Container data after segmentation into Partition is the same as the

order of the u segmented Es en e Container Data