Thanks Ethan.

yep I was definitely adapting the JS like in adapter.js.

And I know there are a few differences in the SDP but didn't realise they were completely incompatible...so thanks for the link to the BUNDLE bug and the heads up.

I'll look forward to the outcome of the meeting next week 8)

roBman


On 27/07/13 09:54, Ethan Hugg wrote:

Hi Rob,

Firefox and Chrome are not directly compatible.  apprtc adapts them a
bit to get them to work together.  You can copy what they do from files
like this:
https://apprtc.appspot.com/js/adapter.js
https://apprtc.appspot.com/js/main.js

The bug for Bundle is here -
https://bugzilla.mozilla.org/show_bug.cgi?id=784491

Though, how some of this should work exactly is still being discussed in
the IETF standards groups MMUSIC and RTCWeb which meet next week in Berlin.

-EH



On Fri, Jul 26, 2013 at 3:55 PM, Rob Manson <[email protected]
<mailto:[email protected]>> wrote:

    Hi,

    I couldn't see that anyone had raised this anywhere and it seems
    unrelated to this topic on discuss-webrtc
    https://groups.google.com/forum/#!topic/discuss-webrtc/dLsbz6Xwxc0 -
    so I thought I'd share the error message I'm receiving.

    If you'd like me to raise this as a bug please let me know...but
    thought it might be better first as just an informational post.

    So setting up a video call between the latest Chrome (28.0.1500.71
    (Official Build 209842) ) and Firefox 22 & Nightly (25.0a1
    (2013-07-25)) on Linux I get this SDP parsing error message in Firefox.

    "Could not negotiate media lines; cause = ERR | SDP Parsing Error:
    Warning: Group attribute type unsupported (BUNDLE). | SDP Parsing
    Error: Warning: Unrecognized attribute (msid-semantic) | SDP Parsing
    Error: Warning: Unrecognized attribute (ice-options) | SDP Parsing
    Error: Warning: Unrecognized attribute (extmap) | SDP Parsing Error:
    Warning: Numeric token for mid attribute not found | SDP Parsing
    Error: Warning: Invalid named events specified for fmtp attribute. |
    SDP Parsing Error: Warning: Unrecognized attribute (ssrc) | SDP
    Parsing Error: Warning: Unrecognized attribute (ssrc) | SDP Parsing
    Error: Warning: Unrecognized attribute (ssrc) | SDP Parsing Error:
    Warning: Unrecognized attribute (ssrc) | SDP Parsing Error: Warning:
    Unrecognized attribute (ice-options) | SDP Parsing Error: Warning:
    Unrecognized attribute (extmap) | SDP Parsing Error: Warning:
    Numeric token for mid attribute not found | SDP Parsing Error:
    Warning: Unrecognized attribute (ssrc) | SDP Parsing Error
      : Warning: Unrecognized attribute (ssrc) | SDP Parsing Error:
    Warning: Unrecognized attribute (ssrc) | SDP Parsing Error: Warning:
    Unrecognized attribute (ssrc) "

    However, in the exact same app I can setup a video call between two
    Firefox tabs or separate browsers so it's definitely working OK with
    Firefox SDP.

    If you'd like a full copy of the Chrome SDP and related signaling
    please let me know...but I'm sure you've got a good collection of
    this already 8)

    roBman
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