How do the MPEG glTF extensions (MPEG_media, MPEG_buffer_circular, MPEG_accessor_timed, MPEG_texture_video, MPEG_scene_dynamic, MPEG_viewport_recommended) wire timed video, V3C and dynamic scene data into a glTF scene?
The Khronos-hosted MPEG glTF extension READMEs (7cee0fcd) are based on ISO/IEC FDIS 23090-14 and define timed media through MPEG_media (alternatives with required mimeType, listed value video/mp4), a circular buffer (count default 2, minimum 2), a timed accessor that scenes with timed data shall use (suggested update rate default 25) and a video texture (format default RGB); each README states Copyright ISO/IEC 2022 with use subject to ISO's licence and IPR policy, not the repository licence.
The Khronos-hosted MPEG glTF extension READMEs (7cee0fcd) are based on ISO/IEC FDIS 23090-14 and define timed media through MPEG_media (alternatives with required mimeType, listed value video/mp4), a circular buffer (count default 2, minimum 2), a timed accessor that scenes with timed data shall use (suggested update rate default 25) and a video texture (format default RGB); each README states Copyright ISO/IEC 2022 with use subject to ISO's licence and IPR policy, not the repository licence.
Curator qualifications: Scene-dynamic and viewport-recommended READMEs (E5, E6) and mpeg.org later-edition listing (S8) not reinspected; READMEs cite the FDIS, not later amendments. Repository-level LICENSE files not read (producer also did not). README text only; no scene loaded.
Limitations: README text only; no scene loaded.
Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.
Structured fields
{
"citations": [
{
"url": "https://github.com/KhronosGroup/glTF/tree/7cee0fcddd5730e90d488bfb5aa2e52171483dde/extensions/2.0/Vendor",
"note": "glTF Vendor/MPEG_media/README.md at 7cee0fcd (lines 11, 79-85, 187-212); Vendor/MPEG_buffer_circular/README.md (lines 19-42); Vendor/MPEG_accessor_timed/README.md (lines 21-38); Vendor/MPEG_texture_video/README.md (lines 37, 105-114)"
},
{
"url": "https://www.mpeg.org/standards/MPEG-I/14/",
"note": "glTF Vendor/MPEG_media/README.md at 7cee0fcd (lines 11, 79-85, 187-212); Vendor/MPEG_buffer_circular/README.md (lines 19-42); Vendor/MPEG_accessor_timed/README.md (lines 21-38); Vendor/MPEG_texture_video/README.md (lines 37, 105-114)"
}
]
}Evidence claims
- [sourced_fact] The Khronos-hosted MPEG glTF extension READMEs (7cee0fcd) are based on ISO/IEC FDIS 23090-14 and define timed media through MPEG_media (alternatives with required mimeType, listed value video/mp4), a circular buffer (count default 2, minimum 2), a timed accessor that scenes with timed data shall use (suggested update rate default 25) and a video texture (format default RGB); each README states Copyright ISO/IEC 2022 with use subject to ISO's licence and IPR policy, not the repository licence. · locator: glTF Vendor/MPEG_media/README.md at 7cee0fcd (lines 11, 79-85, 187-212); Vendor/MPEG_buffer_circular/README.md (lines 19-42); Vendor/MPEG_accessor_timed/README.md (lines 21-38); Vendor/MPEG_texture_video/README.md (lines 37, 105-114) source
Rights
| component | license | hosting | redistribution | modification | training | Evidence and notes |
|---|---|---|---|---|---|---|
| documentation | unknown | permitted | permitted | unknown | unknown | Applies to this original summary only, not to the cited sources. |