Sustainability of Digital Formats
 Planning for Library of Congress Collections

Format Description Categories >> Browse Alphabetical List>> Back

Identification and description

Full name	MXF Generic Container with Uncompressed Video Essence UYVY (2vuy)
Description	MXF file with the Generic Container implementation for uncompressed video, with a picture essence structure identical to that identified by the FOURCC code UYVY. In the SMPTE MXF specification (ST 377-1), the structure is identified using the Apple four-character code 2vuy. This picture data is typically associated with soundtrack essences and, as available, timecode, closed captioning, and other elements.
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	MXF_GC_UNC, MXF Generic Container Mapped to Uncompressed Images
Contains	UYVY, UYVY Video Picture Encoding
May contain	Audio and other essences of various types, not discussed at this time.

Local use

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

Disclosure	See MXF and UYVY.
Documentation	See MXF and UYVY.
Adoption	Moderate levels of adoption in professional production.
Licensing and patents	None.
Transparency	Relatively transparent; requires tools to write and read.
Self-documentation	See MXF.
External dependencies	None.
Technical protection considerations	None.

Quality and functionality factors

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

File type signifiers

Tag	Value	Note
Filename extension	See note.	See MXF.
Internet Media Type	See note.	See MXF.
Magic numbers	See note.	See MXF.
Other	Registry: 06.0E.2B.34.04.01.01.0A; Item: 04.01.02.01.01.02.01.01	SMPTE Universal Label (see SMPTE Metadata Registries). The statement of equivalency to Apple four character 2vuy is made in SMPTE standard ST 377-1, annex G.

Notes

General
History

Format specifications

• SMPTE 377-1-2011. Material Exchange Format (MXF) — File Format Specification; annex G.
• SMPTE RP224v12-2012, Universal Labels Registry.

Useful references

URLs

• SMPTE Metadata Registries (http://www.smpte-ra.org/mdd/). Provides access to registry of SMPTE Universal Labels.