Intent to Experiment: Media Capabilities: decoding

[Husain Bengali]

Contact emails

chcunn...@chromium.org, mlam...@chromium.org, hben...@chromium.org

Spec

https://wicg.github.io/media-capabilities/

Summary

This specification intends to provide APIs to allow websites to get more information about the decoding abilities of the device/system/browser. This enables the website to make optimal decisions when selecting media streams for the user.

Link to “Intent to Implement” blink-dev discussion

https://groups.google.com/a/chromium.org/d/msg/blink-dev/EAqWCAdw1lI/zk3MvsBbCQAJ

Goals for experimentation

Validate that the API provides sufficient and reliable enough information for video serving sites using it to deliver an improved user experience (example signals: fewer dropped frames, higher watch time). This will be measured by video sites that join the origin trial and choose to share their internally measured results and feedback.

Experimental timeline

Origin trial begins with M63 beta release ~10/26/17

Origin trial concludes with M64 branch ~11/30/17

Any risks when the experiment finishes?

No significant risks - video providers can fall back to their current behavior in case we need to disable the origin trial.

Ongoing technical constraints

None

Will this feature be supported on all five Blink platforms supported by Origin Trials (Windows, Mac, Linux, Chrome OS, and Android)?

Yes

OWP launch tracking bug

https://crbug.com/690364

Link to entry on the feature dashboard

https://www.chromestatus.com/feature/5869632707624960

[Rick Byers]

LGTM

Collaborating with real products to measure the value of an API like this is a GREAT use of origin trials.  Do you already have any video sites who have expressed willingness to use an origin trial for this?

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[Husain Bengali]

Yes, YouTube has indicated a desire to run an experiment.

[Rick Byers]

Perfect, I figured as much :-)

[Husain Bengali]

Due to delays in rolling out the origin trial, and feedback around extending our experimentation period, our revised experimental timeline is as follows:

Origin trial begins ~11/15/17

Origin trial concludes ~1/15/18

[Husain Bengali]

Since we haven't yet received sufficient feedback, we'd like to extend this origin trial to 2/16/2018.