EricssonResearch / EricssonResearch/openwebrtc

Checking H264 Capability on Firefox

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Dominant language
C
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Description

Hello everyone,

Have you tried the H264 capability of Firefox? I connected the NativeDemo app for iOS with the Firefox browser. I checked the SDP data and it seems that it is still using VP8
a=rtpmap:120 VP8/90000

Based on the NativeDemo code, handleOfferReceived/handleAnswerReceived checks the encoding name and I always get "VP8"

I have tried using two iOS devices, both with A7 processor (since it supports the H264 hardware encoding) and I get H264 in the SDP data and on the code. However I expect that on Firefox the same behavior will happen. Any thoughts on this guys?

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Research direction

Start with the NativeDemo handleOfferReceived/handleAnswerReceived checks and compare their encoding-name result with the Firefox SDP, then trace the negotiation inputs. Done means identifying why Firefox advertises VP8 here and recording the supported behavior or a reproducible correction.

Written by the indexing model from the issue text.

Assessment

Tech stack
c, ios
Domain
audio-video-rtc, mobile-dev
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
20/100

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