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Hey,<br>
<br>
I would recommend using webRTC (webrtcbin in the GStreamer context)
for<br>
such an application :)<br>
<br>
Best,<br>
<br>
<div class="moz-signature">-- <br>
Mathieu Duponchelle · <a href="https://www.centricular.com">https://www.centricular.com</a></div>
<br>
<div class="moz-cite-prefix">On 5/19/21 8:14 AM, Gregory AE40 via
gstreamer-devel wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAOcQOiScQV6F9_Tr1zD55ufnczU-QYMBX-HeQq8GQJkrnnHhPw@mail.gmail.com">
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<div dir="ltr">Hi,
<div><br>
</div>
<div>I am trying to implement a video chat using GStreamer on
Windows 10. I intend to use gstreamer C API, but for now I am
just using the command line for basic testing. In order to
keep video and audio in sync, I am muxing them using mpegtsmux
and then sending them via RTP. It works fine, but the latency
is pretty high (I think it's about 1 second).
<div><br>
</div>
<div>My sending pipeline is as follows:</div>
<div> </div>
<div>gst-launch-1.0 mpegtsmux name=mux ! rtpmp2tpay ! udpsink
host=127.0.0.1 port=5555^<br>
wasapisrc ! audioresample ! audioconvert ! avenc_aac !
queue ! mux.^<br>
ksvideosrc ! videoconvert ! x264enc tune=zerolatency !
h264parse config-interval=-1 ! queue ! mux.^<br>
<br>
</div>
<div>My receiving pipeline is as follows:</div>
<div><br>
</div>
<div>gst-launch-1.0^<br>
udpsrc address=127.0.0.1 port=5555 caps="application/x-rtp"
! rtpmp2tdepay ! tsdemux name=demux^<br>
demux. ! queue ! avdec_aac ! audioresample ! audioconvert !
wasapisink low-latency=true^<br>
demux. ! queue ! h264parse ! avdec_h264 ! videoconvert !
autovideosink<br>
</div>
<div><br>
</div>
<div>Questions:</div>
<div>1. Is this the correct approach for a video chat or
should I use separate streams for audio and video?</div>
<div>2. If this is the correct approach, am I using the
correct muxer or should I use something else such as asfmux?</div>
<div>3. If this is the correct approach and the correct muxer,
is there something I can do in order to reduce the latency?</div>
<div><br>
</div>
<div><br>
</div>
</div>
</div>
<br>
<fieldset class="mimeAttachmentHeader"></fieldset>
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</blockquote>
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