Sustainability of Digital Formats: Planning for Library of Congress Collections |
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Introduction | Sustainability Factors | Content Categories | Format Descriptions | Contact |
Full name | Matroska File Format with FFV1 video encoding |
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Description | Matroska file containing video essence encoded as FFV1. Supported encodings are declared via the unique Codec ID in the Matroska Codec Mappings. For FFV1 files, the information is the following:
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Production phase | Middle state, used for storage or archiving |
Relationship to other formats | |
Subtype of | Matroska, Matroska Multimedia Container |
Contains | FFV1_v0-1-3, FF Video Codec 1, Version 0, 1 and 3 |
May contain | Sound essences and other elements, not described at this time. |
LC experience or existing holdings | As of this update in November 2021, the Motion Picture, Broadcasting and Recorded Sound Division (MBRS) has ingested several hundred ffv1/mkv files. These files were received from CUNY-TV through the American Archive of Public Broadcasting and the Library will receive many more of these files through the AAPB in the coming months. |
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LC preference | FFV1 codec in the Matroska container is an 'acceptable' format in the Recommended Formats Statement (RFS) for Video -- File-based but only for content without closed captions or timecode information. While captions are supported in Matroska, FFmpeg functionality is limited (and does not, for example, support Timed Text Markup Language or TTML). Improved support for timecode, as opposed to timestamps, is still in development as is support for multi-planar and 3D videos. |
Disclosure | See Matroska and FFV1_v0-1-3. |
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Documentation | See Matroska and FFV1_v0-1-3. |
Adoption | Modest adoption of Matroska and FFV1_v0-1-3 in heritage repositories. |
Licensing and patents | See Matroska and FFV1_v0-1-3. |
Transparency | See Matroska and FFV1_v0-1-3. |
Self-documentation | See Matroska and FFV1_v0-1-3. |
External dependencies | See Matroska and FFV1_v0-1-3. |
Technical protection considerations | See Matroska and FFV1_v0-1-3. |
Tag | Value | Note |
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Filename extension | See related format. | See Matroska |
Pronom PUID | See note. | See Matroska. |
Wikidata Title ID | See note. | See Matroska. |
General | |
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History |
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