gstreamer-devel Digest, Vol 119, Issue 39
Jon Lovewell
jon at csoftware.co.uk
Wed Dec 9 18:45:14 UTC 2020
Peter,
Thanks very much for the quick response. I will give that a try.
Kind Regards
Jon
-----Original Message-----
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Sent: 09 December 2020 16:31
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Subject: gstreamer-devel Digest, Vol 119, Issue 39
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Today's Topics:
1. Problem with WebRtc SendRecv Example (Jon Lovewell)
2. Re: Problem with WebRtc SendRecv Example (Peter Biro)
3. Is there some saint that can build GStreamer for me?
(Davide Perini)
----------------------------------------------------------------------
Message: 1
Date: Wed, 9 Dec 2020 12:34:16 +0000
From: Jon Lovewell <jon at csoftware.co.uk>
To: "gstreamer-devel at lists.freedesktop.org"
<gstreamer-devel at lists.freedesktop.org>
Subject: Problem with WebRtc SendRecv Example
Message-ID: <6a557afabefb4428a461b4e17aab8896 at csoftware.co.uk>
Content-Type: text/plain; charset="us-ascii"
All
I am having problems getting the C# version of the WebRtc SendRecv example to work.
I can see both peers connecting to the signaling server and message exchanges taking place but no audio/video ever gets transmitted to the browser.
I believe the issue comes down to the ICE candidate message being sent from the browser, please see the log entries below (they are consecutive).
0:00:01.319596700 38484 05E13C30 LOG webrtcbin gstwebrtcbin.c:2993:_add_ice_candidate:<sendrecv> adding ICE candidate with mline:0, a=candidate:2589271750 1 udp 2113937151 9228adfe-2557-45a9-bd35-679d37fe1234.local 49755 typ host generation 0 ufrag +uGI network-cost 999
0:00:01.319641700 38484 05E13C30 WARN webrtcice gstwebrtcice.c:622:gst_webrtc_ice_add_candidate:<webrtcice0> Could not parse candidate 'a=candidate:2589271750 1 udp 2113937151 9228adfe-2557-45a9-bd35-679d37fe1234.local 49755 typ host generation 0 ufrag +uGI network-cost 999'
I am using GStreamer V 1.16.2 and GstSharp V 1.16.0. The OS is Windows 10 64 bit. All the software is running on a single machine using localhost. Log Level set to *:3,webrtc*:9,dtls*:9
Very grateful for any help or assistance.
Kind Regards
Jon
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Message: 2
Date: Wed, 9 Dec 2020 16:38:27 +0100
From: Peter Biro <pettair at gmail.com>
To: Discussion of the development of and with GStreamer
<gstreamer-devel at lists.freedesktop.org>
Subject: Re: Problem with WebRtc SendRecv Example
Message-ID: <F41F8550-7878-4695-80E2-CA44CCDFC57E at gmail.com>
Content-Type: text/plain; charset="us-ascii"
Hi,
It is maybe due to that webrtcbin doesn't support mDNS ice candidates:
https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1139 <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/1139>
It was solved in 1.17.90 release, in the meantime you can disable mDNS in chrome (but it will be removed in future as already removed for other browsers).
First you need to enable:
chrome://flags/#temporary-unexpire-flags-m85 <chrome://flags/#temporary-unexpire-flags-m85>
After setting it this will be visible:
chrome://flags/#enable-webrtc-hide-local-ips-with-mdns
and here you need to disable "Anonymize local IPs exposed by WebRTC.".
But webrtc is a complex beast so it can be any other thing, but its worth try these flags and if it is working then you can test is you have this issue or not.
Bests,
Peter
> On 2020. Dec 9., at 13:34, Jon Lovewell <jon at csoftware.co.uk> wrote:
>
> All
>
> I am having problems getting the C# version of the WebRtc SendRecv example to work.
>
> I can see both peers connecting to the signaling server and message exchanges taking place but no audio/video ever gets transmitted to the browser.
>
> I believe the issue comes down to the ICE candidate message being sent from the browser, please see the log entries below (they are consecutive).
>
> 0:00:01.319596700 38484 05E13C30 LOG webrtcbin gstwebrtcbin.c:2993:_add_ice_candidate:<sendrecv> adding ICE candidate with mline:0, a=candidate:2589271750 1 udp 2113937151 9228adfe-2557-45a9-bd35-679d37fe1234.local 49755 typ host generation 0 ufrag +uGI network-cost 999
> 0:00:01.319641700 38484 05E13C30 WARN webrtcice gstwebrtcice.c:622:gst_webrtc_ice_add_candidate:<webrtcice0> Could not parse candidate 'a=candidate:2589271750 1 udp 2113937151 9228adfe-2557-45a9-bd35-679d37fe1234.local 49755 typ host generation 0 ufrag +uGI network-cost 999'
>
> I am using GStreamer V 1.16.2 and GstSharp V 1.16.0. The OS is
> Windows 10 64 bit. All the software is running on a single machine
> using localhost. Log Level set to *:3,webrtc*:9,dtls*:9
>
> Very grateful for any help or assistance.
>
> Kind Regards
>
> Jon
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Message: 3
Date: Wed, 09 Dec 2020 17:30:33 +0100
From: Davide Perini <perini.davide at dpsoftware.org>
To: gstreamer-devel at lists.freedesktop.org
Subject: Is there some saint that can build GStreamer for me?
Message-ID: <d94c1ae7a00accd677817e22f2037d20 at dpsoftware.org>
Content-Type: text/plain; charset="us-ascii"; Format="flowed"
Hi all,
I'm away from home and I don't have my PC, I will be away for some weeks.
Is there some saint that can build GStreamer for Windows starting from this merge request?
https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/1855
It's a very juicy merge request, it could be interesting for others too
:)
Thank you
Davide
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