1453764 - videoCodec missing in WebRTC getStats results

Status: RESOLVED DUPLICATE of bug 1225722

(Core :: WebRTC, defect)

Description

[mwilson]

User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:59.0) Gecko/20100101 Firefox/59.0
Build ID: 20180323154952

Steps to reproduce:

Call

peerConnection.getStats(null).then((X) => {X.forEach((report) => console.log(report));})

on an active WebRTC peer connection.


Actual results:

A variety of stats are seen for the RTP, but nothing about the videoCodec in use.  To take one example:

bitrateMean: 352350.745945946
bitrateStdDev: 31318.453623627764
bytesSent: 8456466
droppedFrames: 61
firCount: 0
framerateMean: 29.17837837837838
framerateStdDev: 2.4217240462223826
framesEncoded: 5417
id: "outbound_rtp_video_1"
isRemote: false
mediaType: "video"
nackCount: 0
packetsSent: 10639
pliCount: 0
remoteId: "outbound_rtcp_video_1"
ssrc: "193348778"
timestamp: 1523556382494
type: "outbound-rtp"


Expected results:

I would have expected to see videoCodec in the statistics, or at least some way to map from the statistics to the codec in use.  As far as I can tell there is no way to know the videoCodec being used.

Comment 1

[Nico Grunbaum [:ng, @chew:mozilla.org]]

Firefox does not yet support the RTCCodecStats dictionary[1]. Bug 1225722 has already been filed for that, so I am going to mark this as a duplicate.
[1] https://w3c.github.io/webrtc-stats/#codec-dict*