Sustainability of Digital Formats
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Introduction | Sustainability Factors | Content Categories | Format Descriptions | Contact |
Full name | QuickTime Video, MJPEG Codec |
Description | File format that wraps a MJPEG video bitstream with other data chunks, e.g., audio. |
Production phase | Used as a final-state format for enduser delivery; may also be used as a middle-state format, e.g., as the video source when producing lower-resolution streaming versions. |
Relationship to other formats | |
Subtype of | QuickTime |
Contains | MJPEG video codec |
May contain | Audio streams not documented at this time |
LC experience or existing holdings | See QuickTime |
LC preference | See QuickTime |
Disclosure | See QuickTime and MJPEG |
Documentation | See QuickTime and MJPEG |
Adoption | Unknown to the compilers of this document. |
Licensing and patent claims | See QuickTime and MJPEG |
Transparency | See MJPEG |
Self-documentation | See QuickTime |
External dependencies | See QuickTime |
Technical protection considerations | See QuickTime |
Normal rendering | Good support. |
Clarity (support for high image resolution) | Good to very good, given that this is a format used for compression and which supports interlaced video. QTV_MJPEG would be expected to provide the highest quality of the QuickTime codecs described at this web site, although at relatively high bitrates. |
Fidelity (support for high audio resolution) | See QuickTime |
Support for multiple sound channels | See QuickTime |
Functionality beyond normal video rendering | See QuickTime |
Tag type | Value | Note |
Filename Extension | mov | |
Internet Media Type | See QuickTime | |
Magic numbers | See QuickTime | |
Video type tag (QuickTime) | mjpa, mjpb | Four-character code identifying Motion JPEG video codecs "A" and "B," from QuickTime File Format, p. 92 or p.96.1 |
General | |
History |
URLs
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URLs
See QuickTime
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1There seem to have been at least two printings of the specification carrying the same date. These were not systematically compared by the compiler of this Web page. Pagination varies between these two printings.
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