1163893 - WebRTC doesn't show H.264 video when communicating with a legacy SIP client

Status: RESOLVED INCOMPLETE

(Core :: WebRTC: Audio/Video, defect)

Description

[antirazin]

User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/42.0.2311.135 Safari/537.36

Steps to reproduce:

Setting Environment:

@ WebRTC: JSSIP  - http://tryit.jssip.net/    browsed by FireFox 38.0
@ SIP client: self-designed , without supporting VP8 but H.264 does
@ SIP proxy server: kamailio 4.2


Procedure Steps:

1. JSSIP and SIP client registered to Kamailio SIP Proxy
2. JSSIP call out to SIP client





Actual results:

SIP client can show the audio and video from JSSIP,
however, JSSIP can show audio from SIP client but H.264 video failed (block screen).

--

I captured the streams and do make sure video be sent out from my client to JSSIP,
so I suspect that it may have something wrong with H.264 decoder of FireFox.

I ever checked rtpengine which may be the root cause of this issue:
https://github.com/sipwise/rtpengine/issues/105

but it seems not to be ...

And I found the announcement below:
https://gigaom.com/2014/10/14/h-264-support-arrives-in-firefox-thanks-to-cisco-but-h-264-web-videos-still-wont-play/

It said "(for media codec enthusiasts: it’s only capable of decoding streams encoded with H.264’s constrained baseline profile)",
but I still got no video shown even using H.264 Baseline profile.

Any suggestion?
Expect for your reply :)




Expected results:

Both clients can show Audio\Video from each other successfully.

Comment 1

[Maire Reavy [:mreavy]]

Can retest with Nightly (or Dev Edition), tell us what packetization mode you are using, and attach the SDP if you can repro the problem?  Thanks.

Comment 2

[Maire Reavy [:mreavy]]

We haven't heard back from the reporter on this.  I'm resolving incomplete.  Please reopen if we get more info to continue investigating.