Intent to Ship: MediaStreamTrackProcessor frame counters

[Chromestatus]

Contact emails

agp...@google.com, gui...@google.com

Specification

https://www.w3.org/TR/mediacapture-transform/#track-processor-interface

Summary

Adds discardedFrames and totalFrames attributes to the MediaStreamTrackProcessor interface. These counters allow web developers to monitor the health of their media processing pipelines by tracking the number of frames received and dropped by the processor.

Blink component

Blink>MediaStream

Web Feature ID

insertable-streams

Motivation

No information provided

Initial public proposal

No information provided

TAG review

No information provided

TAG review status

Not applicable

Goals for experimentation

None

Risks

Interoperability and Compatibility

No information provided

Gecko: Positive (https://github.com/w3c/mediacapture-transform/pull/125) Spec PR was approved by Mozilla

WebKit: Positive (https://github.com/w3c/mediacapture-transform/pull/125) Spec PR was approved by WebKit

Web developers: No signals

Other signals:

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications?

No information provided

Debuggability

No information provided

Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)?

Yes

Is this feature fully tested by web-platform-tests?

Yes
third_party/blink/web_tests/wpt_internal/mediacapture-insertable-streams/MediaStreamTrackProcessor-stats.https.html, third_party/blink/web_tests/wpt_internal/mediacapture-insertable-streams/MediaStreamTrackProcessor-stats-transfer.https.html

Flag name on about://flags

No information provided

Finch feature name

MediaStreamTrackProcessorStats

Rollout plan

Will ship enabled for all users

Requires code in //chrome?

False

Tracking bug

https://issues.chromium.org/issues/513481577

Estimated milestones

Shipping on desktop	150
Shipping on Android	150
Shipping on WebView	150

Anticipated spec changes

Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (e.g. links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (e.g., changing to naming or structure of the API in a non-backward-compatible way).

No information provided

Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/6267249280286720?gate=4665260125585408

This intent message was generated by Chrome Platform Status.