1225723 - Implement RTCTransportStats

Status: NEW

(Core :: WebRTC, task, P3)

Description

[Andreas Pehrson [:pehrsons]]

We have the WebIDL for RTCCodecStats but it's not being populated. Spec at [1].

[1] https://w3c.github.io/webrtc-stats/archives/20151023/webrtc-stats.html#transportstats-dict*

Comment 1

[Bulk Bug Changes for mreavy's org]

Mass change P2->P3 to align with new Mozilla triage process.

Comment 2

[Jan-Ivar Bruaroey [:jib] (needinfo? me)]

Note: remember to deprecate our RTCIceCandidatePairStats.selected property once we implement this. Our |selected| attribute is something we added a long time ago, mostly for about:webrtc.

In the spec, which pair is selected for a particular transport appears to be indicated by RTCTransportStats.selectedCandidatePairId, since different transports will have different candidate pools.

Once this if fixed, web sites that want to learn which pair is used, can remove their workarounds for Firefox, and we should also update about:webrtc to use the spec way.

Comment 3

[Byron Campen [:bwc]]

The crypto-suite.https.html wpt has a bunch of expected failures due to this.

Comment 4

[Byron Campen [:bwc]]

I think it makes sense to do RTCIceTransport first, since some of the stats will either be based directly on that, or at the very least the same API in MediaTransportHandler that it uses.

Comment 5

[Byron Campen [:bwc]]

We might be able to do a partial implementation here, and expand both this and RTCIceTransport afterward.