Initiating calls from Chrome to OpenWebRTC can be unreliable

[superdump]

When trying to initiate a call from Chrome to any OpenWebRTC client (including NativeDemo on iOS) does not succeed to set up the connection.

[stefhak]

Could you be more specific about app and versions? It works fine for me
Chrome 43.0.2357.37 beta (64-bit) to OWR on Mac OS X (but the build is not
totally fresh) and demo.openwebrtc.io.

On Fri, Apr 24, 2015 at 3:56 PM, Robert Swain notifications@github.com
wrote:

When trying to initiate a call from Chrome to any OpenWebRTC client
(including NativeDemo on iOS) does not succeed to set up the connection.

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#359.

[superdump]

Hmm. It works fine for @Rugvip too. It seems like I get audio through but not video right now. Chrome stable (42.0.2311.90 64-bit on OS X) and any OWR application.

[Khantareen]

khan

[stefhak]

FWIW, I just did a clean build of OWR, and (I'm only testing video) Chrome <-> OWR works fine regardless of which one that initiates.

[WangHeng861021]

it seems that the DTLS in OpenWebRTC is disabled defaultly,so how to enable it in using OpenWebRtc,please give a hand for that.thanks a lot

[superdump]

DTLS is a requirement for WebRTC, it is not disabled by default.

[marcin-sielski]

There are some problems with DTLS handshake. I have tried openwebrtc with the WebRTC gateway. Sometimes it succeeds only for audio channel. Sometimes it succeeds only for video channel. In some scenarios it succeeds all the time. OpenWebRTC does not responds to repeating dtls "hello" requests. Could you please let me know where to look at to track down this issue?

[stefhak]

I suppose gstdtlsagent.c/h in gst-plugins-bad should be a starting point.

On Tue, Sep 8, 2015 at 12:24 PM, Marcin Sielski notifications@github.com
wrote:

There are some problems with DTLS handshake. I have tried openwebrtc with
the WebRTC gateway. Sometimes it succeeds only for audio channel. Sometimes
it succeeds only for video channel. In some scenarios it succeeds all the
time. OpenWebRTC does not responds to repeating dtls "hello" requests.
Could you please let me know where to look at to track down this issue?

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#359 (comment)
.

[Rugvip]

@marcin-sielski

If the DTLS client is repeatedly sending HELLO requests, and the server isn't receiving them, then it is most likely a problem lower down in the stack, namely ICE. If the server receives the messages but fails to respond, then it's probably a DTLS issue.

If you could take and upload a log of a failed call setup with a single media stream and GST_DEBUG=dtls:6 , I could have a look and see if it seems like a DTLS issue.