Sustainability of Digital Formats
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| Full name | Indeo Video Codec, Version 5 |
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| Description | Bitstream encoding for video, originally developed by Intel. John McGowan states that Indeo 5 employs a wavelet algorithm and other encoding features; its predecessor Indeo 4 employs a presumably similar "hybrid wavelet algorithm." Windows implementations of Indeo are distributed by Ligos Corporation; the Mac versions (with support that ends with operating system OS 9) from Apple. All versions numbered 5 are covered by this document; there is no separate document for the presumably similar version 4, nor for Indeo XP developed for Windows XP and Vista. Note that version 3 (Indeo_3) compresses by means of vector quantization rather than wavelet transforms; nevertheless, it is listed as an earlier version below. |
| Production phase | Generally used as an end-user delivery format. |
| Relationship to other formats | |
| Used by | AVI_Indeo, AVI, Indeo Codec |
| Used by | QuickTime, Indeo Codec (not documented at this time) |
| Has earlier version | Indeo_3, Indeo Video Codec, Version 3 |
| Has earlier version | Indeo Video Codec, Version 4 (not documented at this time) |
| Other | Indeo Video Codec XP (also know as Indeo Video version 5.2) for Windows XP and Vista (not documented at this time). |

| LC experience or existing holdings | |
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| LC preference |

| Disclosure | Proprietary standard with some public documentation |
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| Documentation | Documentation |
| Adoption | Not known to the writers of this document. |
| Licensing and patents | Indeo codecs and software may be licensed from Ligos Corporation; some information in Ligos Indeo FAQ. |
| Transparency | Depends upon algorithms and tools to read; will require sophistication to build tools. |
| Self-documentation | Not applicable; provided by wrapper formats. |
| External dependencies | None. |
| Technical protection considerations | Ligos Corporation FAQ states that developers can assign access keys to video files to protect them. These or additional protections may [also?] be provided by wrapper formats. |

| Moving Image | |
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| Normal rendering | Not applicable |
| Clarity (high image resolution) | Moderate, varies according to levels of compression and picture size; the maximum of which is about four megapixels, with no dimension exceeding 8,188 pixels. Does not support interlaced playback. |
| Functionality beyond normal rendering | Not applicable. |

| Tag | Value | Note |
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| Filename extension | n/a |
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| Internet Media Type | n/a |
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| Magic numbers | n/a |
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| Microsoft FOURCC | IV50 |
Used when this codec is wrapped in Microsoft file formats, e.g., AVI and ASF; see the Microsoft registry, which also lists a number of additional IV FOURCCs. John McGowan states that IV32 is generally used for Indeo 3; IV41 for Indeo 4, and IV50 for Indeo 5. |

| General | Much useful information in the Ligos Indeo FAQ. |
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| History |

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