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QuickTime Video, MJPEG Codec
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Format Description Properties
• ID: fdd000089
• Short name: QTV_MJPEG
• Content categories: moving image
• Format category: file format, bitstream encoding
• Last significant update: 2007-08-07
• Draft status: Full
Identification and description 
| 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 |
Local use
Sustainability factors
Quality and functionality factors (video)
| 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 |
File type signifiers
| 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 |
Notes
Format specifications
URLs
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Useful references
URLs
See QuickTime
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Last updated: Tuesday, 21-Aug-2007 14:23:13 EDT
