Re: Issue with WebRTC data channels

Hello Ben.

Which version of Gstreamer are you using? It was an issue with data
channels some time ago.

Best regards,
Anton.

On Sun, Jan 14, 2024 at 1:33 AM Benjamin Greenwood via gstreamer-devel <
[email protected]> wrote:

> Hello,
>
> I successfully run and modify to my liking the WebRTC sendrecv example
> here:
>
> https://gitlab.freedesktop.org/gstreamer/gst-examples/-/tree/master/webrtc?ref_type=heads
>
> However, I am having an issue with data channels.
> When I use the webrtc-sendrecv process (unmodified) with the JavaScript
> example, data channels open and the browser and executable talk to each
> other: "Hi! (from Gstreamer)" and "Hi! (from browser)"
>
> However, when I run two webrtc-sendrecv executables, they are able to pass
> media to each other and CREATE data channels, but the data channels never
> OPEN - no on-open signal ever fires and if I try to send a message at any
> point through send_channel, I get "webrtc_data_channel_send_string:
> assertion 'channel->opened' failed".
>
> I would appreciate any advice! I believe the answer must be in the way the
> executable handles negotiation vs. the Javascript example, but I don't know
> how to debug into those issues.
>
>  - Ben
>