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<div class="moz-cite-prefix">On 17/7/20 2:41 pm, Ben Rush wrote:<br>
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cite="mid:CANV0r96_ymMzh3oBvhM+6UaCXZGMwm2kwW2Px98X35=UX42=RQ@mail.gmail.com">
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<div dir="ltr">Yes, you nailed it: I'm on an older release.
gst-inspect showed that the property didn't exist. I was
hyper-focused on the latest source and failed to inspect my
local branch. I had actually thought about that over dinner
today while thinking about the post I made to this group.
Thanks for confirming it for me. <br>
<br>
Can you explain "it needs updating to place the necessary
properties on the ICE object rather than on webrtcbin itself"?
I'm willing to do the leg work, I'm just not sure what you
mean precisely. <br>
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I mean, instead of adding the port properties on webrtcbin as well,
they should only be on the GstWebRTCICE object. We're trying the
keep the API on webrtcbin limited to only the webrtc PeerConnection
API if at all possible. It also needs a manual rebase (probably not
hard) and the review comment addressed.<br>
<br>
<blockquote type="cite"
cite="mid:CANV0r96_ymMzh3oBvhM+6UaCXZGMwm2kwW2Px98X35=UX42=RQ@mail.gmail.com">On
Thu, Jul 16, 2020 at 9:47 PM Matthew Waters <<a
href="mailto:ystreet00@gmail.com" moz-do-not-send="true">ystreet00@gmail.com</a>>
wrote:<br>
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On 17/7/20 7:55 am, Ben Rush wrote:<br>
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<div dir="ltr">Admittedly I seem to
occasionally get myself confused when
it comes to navigating objects and
their properties in the GLib Object
System. Often I find myself exploring
sample code and piecing together an
understanding from that. However, I
can't seem to get at what I need here
and am hoping someone can help. <br>
<br>
First, the main problem I'm attempting
to solve is forcing WebRTCBin to
restrict the addresses and ports used
when generating ICE candidates. I'm
behind a firewall, don't want to /
can't use a TURN server in my specific
scenario, and so would like to specify
the exact ports / addresses to be
considered as candidates. From
examining the source, it appears as
though my only way to do that is to
rely on emitting this signal with the
address information (IP/port): <br>
<br>
<a
href="https://gstreamer.freedesktop.org/documentation/webrtc/index.html?gi-language=c#GstWebRTCICE::add-local-ip-address"
target="_blank"
moz-do-not-send="true">https://gstreamer.freedesktop.org/documentation/webrtc/index.html?gi-language=c#GstWebRTCICE::add-local-ip-address</a><br>
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<div>So, I assume I'll need to call
g_signal_emit_by_name() with the
proper arguments, one of which being
the object to receive the signal. All
well and good, except for the fact
that the receiving object is of type
GstWebRTCICE. So, I need to get that
object. Per this documentation: <a
href="https://gstreamer.freedesktop.org/documentation/webrtc/index.html?gi-language=c#webrtcbin:ice-agent"
target="_blank"
moz-do-not-send="true">https://gstreamer.freedesktop.org/documentation/webrtc/index.html?gi-language=c#webrtcbin:ice-agent</a> it
appears to be a property on the
webrtcbin element. </div>
<div><br>
So, I have this code: <br>
<br>
<div> _pipeline =
gst_parse_launch("webrtcbin
bundle-policy=max-bundle
name=sendrecv "</div>
<div> "autoaudiosrc !
audioconvert ! audioresample ! queue
! opusenc ! rtpopuspay ! "</div>
<div> "queue ! " RTP_CAPS_OPUS
"97 ! sendrecv. ", &error);<br>
.....<br>
_webRtcElement =
gst_bin_get_by_name(GST_BIN(_pipeline),
"sendrecv");<br>
</div>
</div>
<div>.....<br>
GValue value = { 0, };</div>
<div>
g_value_init(&value,
G_TYPE_OBJECT);</div>
<div>
g_object_get_property(G_OBJECT(_webRtcElement),
"ice-agent", &value);</div>
<div> GObject* object =
(GObject*)g_value_get_object(&value);</div>
<div><br>
</div>
<div>But the value of the object is
always null. What am I doing wrong?
How am I navigating this improperly? <br>
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<br>
Do you have a version of GStreamer that includes that? The
'ice-agent' property on webrtcbin and 'add-local-ip-address'
on gstwebrtcice is only available in master and is not in
any released version yet.<br>
<br>
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<div>Also, I noticed this merge
request: <a
href="https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/856"
target="_blank"
moz-do-not-send="true">https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/issues/856</a>.
I'm hoping this doesn't mean forcing a
particular IP/port is even possible
with webrtcbin. <br>
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<br>
This MR would probably by your best bet but it needs
updating to place the necessary properties on the ICE object
rather than on webrtcbin itself.<br>
<br>
Cheers<br>
-Matt<br>
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<div>Thanks in advance. </div>
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