Segmentation by region for download [video only]

[jronallo]

Description

Be able to request an arbitrary region of the entire video by xywh, rather than by time. This could be used for:

• Cropping out sidebars/letterboxes
• Multi-screen display

This is distinct from:

• Segmentation by time
• Reference to region by Annotation

Implication is for download, and that the server will construct a full stand alone video representation.

Proposed Solutions

Incorporate region into the AV API, in the same way as for the Image API, using the Media Fragment syntax.

Has implications on an info.json equivalent for the AV API where different "tiles" of the video could be pre-generated up front. Would need to be distinct from the entire video at different resolutions.

Additional Background

Probably a "level 3" feature due to complexity.

Source: BL workshop notes
Interest: 100%

[azaroth42]

Discussion at the Hague: Hard to do in real time, hard to know which sections to pre-compute.

[Eyal-R]

I agree, not that it's only hard to do in real time, I'm not sure how useful this particular feature would be, comparing to the rest of the features in AV API. Therefore I'd consider dropping it altogether.