ISO/IEC 23001-14:2019/DAmd 1

Support for HTTP entities, enhanced file type and byte-range priorities

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DRAFT AMENDMENT
ISO/IEC 23001-14:2019 DAM 1
ISO/IEC JTC 1/SC 29 Secretariat: JISC
Voting begins on:  Voting terminates on:
2021-01-21 2021-04-15
Information technology — MPEG systems technologies —
Part 14:
Partial file format
AMENDMENT 1: Support for HTTP entities, enhanced file type
and byte-range priorities
Partie 14: Format de fichier partiel
AMENDEMENT 1: Titre manque
ICS: 35.040.40
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ISO/IEC 23001-14:2019/DAM 1:2021(E)
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ISO/IEC23001-14 :2018/DAM 1 :2020(E)
ISO/IEC 23001-14:2019/DAM 1:2021(E)
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION
ORGANISATION INTERNATIONALE DE NORMALISATION
ISO/IEC JTC 1/SC 29/WG 03 MPEG SYSTEMS
ISO/IEC JTC 1/SC 29/WG 03 N00066
October 2020, Virtual
Text of ISO/IEC 23001-14 DAM 1 Support for HTTP entities, enhanced file type
Title
and byte-range priorities
Source WG 03, MPEG Systems
Status Approved
Serial Number 19776
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ISO/IEC 23001-14:2019/DAM 1:2021(E)
ISO/IEC 23001-14 :2018/DAM 1 :2020(E)
Information Technology — MPEG Systems Technologies— Part 14:
Partial File Format, AMENDMENT1: Support for HTTP entities,
enhanced file type and byte-range priorities
In section 4.2.4 of, replace:

"The FileTypeBox of the source file, whether or not correctly received, shall not be modified; it shall

be encapsulated in one partial segment and stored in a PartialDataBox, in order to ensure unicity of

the FileTypeBox at the container level."
with

"The FileTypeBox of the source file, and, if present, the OriginalFileTypeBox and/or

ExtendedTypeBox, whether or not correctly received, shall not be modified; they shall either:

• be encapsulated altogether in one partial segment and stored in a PartialDataBox, or

• be encapsulated altogether in an OriginalFileTypeBox immediately following the new

FileTypeBox of the mixed partial file.
This ensures that a single FileTypeBox is present at the container level."
Add new subclause 5.1.9
5.1.9 HTTP Entity Box
5.1.9.1 Definition
Box Type: 'htte'
Container: PartialSegmentBox or PartialFileBox
Mandatory: No
Quantity: At most one per PartialSegmentBox, or one in PartialFileBox

The HTTPEntityBox is used to store a set of HTTP entities (header name and body) applying to the file

identified by the source URL. It is typically inserted in PartialFileBox or PartialSegmentBox by

the receiver based on information carried in the delivery protocol, and can be used by the receiving entity

to populate an HTTP cache.

There may be several HTTPEntityBox in a partial file. HTTPEntityBox declared in

PartialFileBox define entities valid for the entire partial file; HTTPEntityBox declared in

PartialSegmentBox define entities valid for the partial segment only.

The Content-Type and Content-Length entities shall not be included in this box. Content-Type may be

signalled through SourceURLBox. Content-Length shall be re
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