Sustainability of Digital Formats: Planning for Library of Congress Collections

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QuickTime File Format with UYVY (2vuy) Video Encoding

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Format Description Properties Explanation of format description terms

Identification and description Explanation of format description terms

Full name QuickTime File Format with UYVY (2vuy) Video Encoding
Description

QuickTime file format wrapping UYVY (the Apple identifier is 2vuy) uncompressed video essence, typically multiplexed with soundtrack audio.

Production phase Generally employed in post-production or editing (middle phase) and in limited modes of dissemination (final phase).
Relationship to other formats
    Subtype of QuickTime, QuickTime File Format
    Contains UYVY, UYVY Video Picture Encoding
    May contain Audio essences of various types, not discussed at this time.

Local use Explanation of format description terms

LC experience or existing holdings No extensive experience.
LC preference None. For preservation reformatting, the Library of Congress' Packard Campus for Audio-Visual Conservation has chosen MXF_OP1a_JP2_LL (lossless JPEG 2000 wrapped in MXF operational pattern 1a).

Sustainability factors Explanation of format description terms

Disclosure See QuickTime and UYVY.
    Documentation See QuickTime and UYVY.
Adoption Widely adopted.
    Licensing and patents None.
Transparency Relatively transparent; requires tools to write and read.
Self-documentation See QuickTime.
External dependencies None.
Technical protection considerations None.

Quality and functionality factors Explanation of format description terms

Moving Image
Normal rendering Supported
Clarity (high image resolution) See UYVY.
Functionality beyond normal rendering See QuickTime.

File type signifiers and format identifiers Explanation of format description terms

Tag Value Note
Filename extension See related format.  See QuickTime.
Internet Media Type See related format.  See QuickTime.
Magic numbers See related format.  See QuickTime.
Other 2vuy
Apple Video Codec four-character code, referenced in a QuickTime file as the feature-values element in the QuickTime Video Codec Type. Comments welcome.
Pronom PUID See note.  See https://www.nationalarchives.gov.uk/PRONOM/x-fmt/384 for QuickTime File Format.
Wikidata Title ID See note.  See https://www.wikidata.org/wiki/Q942350 for QuickTime File Format.

Notes Explanation of format description terms

General Appendix F of the QuickTime File Format Specification describes the QuickTime Video Codec Type. This type contains the elements profile atom [Track (video), movie]; part-ID [0x20202020 (universal feature)]; feature-code ['vfmt']; feature-value [Unsigned int(32) (a four-character-code) holding the QuickTime video codec type copied from the ImageDescription structure’s cType field."]. The "feature-values" is the four-character-code found in a video sample description. In this instance: 2vuy. Comments welcome.
History  

Format specifications Explanation of format description terms


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Last Updated: Monday, 27-Feb-2017 09:55:22 EST