Sustainability of Digital Formats: Planning for Library of Congress Collections |
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Introduction | Sustainability Factors | Content Categories | Format Descriptions | Contact |
Full name | MPEG-4 Version 2 file format with Advanced Video Coding, High Profile |
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Description | MPEG-4 Version 2 file format containing AVC encoded data, high profile. From the H.264/MPEG-4 AVC Wikipedia article (consulted August 1, 2010): "The primary profile for broadcast and disc storage applications, particularly for high-definition television applications (for example, this is the profile adopted by the Blu-ray Disc storage format and the DVB HDTV broadcast service)." |
Production phase | See MP4_FF_2. |
Relationship to other formats | |
Subtype of | MP4_FF_2, MPEG-4 File Format, Version 2 |
Contains | MPEG-4_AVC_HP, MPEG-4, Advanced Video Coding (Part 10), High Profile |
May contain | AAC_MP4, MPEG-4 Advanced Audio Coding |
May contain | AAC_MP4_LC, AAC (MPEG-4) Low Complexity Object |
May contain | Additional audio, graphics, and scene graph stream types. Not documented at this time. |
LC experience or existing holdings | See MP4_FF_2 |
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LC preference | See MP4_FF_2 |
Disclosure | See MP4_FF_2 |
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Documentation | See MP4_FF_2 and MPEG-4_AVC. |
Adoption | See MP4_FF_2 and MPEG-4_AVC. |
Licensing and patents | See MP4_FF_2. |
Transparency | See MPEG-4_AVC. |
Self-documentation | See MP4_FF_2. |
External dependencies | See MP4_FF_2. |
Technical protection considerations | See MP4_FF_2. |
Moving Image | |
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Normal rendering | See MP4_FF_2. |
Clarity (high image resolution) | See MPEG-4_AVC_HP. |
Functionality beyond normal rendering | See MP4_FF_2. |
Sound | |
Fidelity (high audio resolution) | See MP4_FF_2. |
Multiple channels | See MP4_FF_2. |
Functionality beyond normal rendering | See MP4_FF_2. |
Tag | Value | Note |
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Filename extension | See related format. |
See MP4_FF_2 |
Internet Media Type | See related format. |
See MP4_FF_2 |
Magic numbers | See related format. |
See MP4_FF_2 |
File type brand (ISO Base Media File Format) | See related format. |
See MP4_FF_2 |
Indicator for profile, level, version, etc. | 100 |
The profile_idc pertains to the encoding and is described as a part of Annex A of Part 10 of the standard, p. 302 as follows: "Conformance of a bitstream to the High profile is specified by profile_idc being equal to 100. Decoders conforming to the High profile at a specific level shall be capable of decoding all bitstreams in which either or both of the following conditions are true: (profile_idc is equal to 77 or constraint_set1_flag is equal to 1) and the combination of level_idc and constraint_set3_flag represent a level less than or equal to the specified level; profile_idc is equal to 100 and level_idc represent a level less than or equal to the specified level." |
General | |
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History |
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