Sustainability of Digital Formats: Planning for Library of Congress Collections
Sustainability of Digital Formats: Planning for Library of Congress Collections |
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| Introduction | Sustainability Factors | Content Categories | Format Descriptions | Contact | |
| Full name | AVI OpenDML File Format with V210 Video Encoding |
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| Description |
File format that wraps V210 uncompressed video essence with other data chunks, e.g., audio, in AVI_OpenDML_1_02. |
| 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 | AVI_OpenDML_1_02, AVI File Format with OpenDML Extensions, Version 1.02 |
| Contains | V210, V210 Video Picture Encoding |
| May contain | Audio essences of various types, not discussed at this time. |
| LC experience or existing holdings | No extensive experience. |
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| 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). |
| Disclosure | See AVI and V210. |
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| Documentation | See AVI and V210. |
| Adoption | Widely adopted. |
| Licensing and patents | None. |
| Transparency | Relatively transparent; requires tools to write and read. |
| Self-documentation | See AVI. |
| External dependencies | None. |
| Technical protection considerations | None. |
| Moving Image | |
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| Normal rendering | Supported |
| Clarity (high image resolution) | See V210. |
| Functionality beyond normal rendering | See AVI. |
| Tag | Value | Note |
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| Filename extension | See note. | See AVI. |
| Internet Media Type | See note. | See AVI. |
| Magic numbers | See note. | See AVI. |
| Microsoft FOURCC | V210 |
| General | Derived from a Microsoft developers page: "The AVISTREAMHEADER structure contains information about one stream in an AVI file." It contains an fccType element ("vids" in this case, for video) followed by a fccHandler element that "contains a FOURCC that identifies a specific data handler. . . . For audio and video streams, this specifies the codec for decoding the stream." This compiler has seen this string in an AVI file: LISTt strlstrh8 vidsV210. Comments welcome. |
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| History |
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