<html><head></head><body><div class="ydpb1b69bc8yahoo-style-wrap" style="font-family:Helvetica Neue, Helvetica, Arial, sans-serif;font-size:13px;"><div><div dir="ltr" data-setdir="false">Try sending SR report. The NTP timestamp in the SR report will help in audio and video synchronization.</div><div dir="ltr" data-setdir="false">Check rtpbin examples which have SR and RR reort</div><div><br></div><div class="ydpb1b69bc8signature"><div><br></div><div><br></div><div>Sent from Yahoo Mail. <a href="https://yho.com/148vdq" rel="nofollow" target="_blank">Get the app</a></div></div></div>
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On Monday, 22 April, 2024 at 03:20:51 pm GMT-5, cfd new via gstreamer-devel <gstreamer-devel@lists.freedesktop.org> wrote:
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<div dir="ltr">I guess you send out audio and video separately. If yes, you may try to send out audio first and then video.</div><div dir="ltr"><br clear="none"></div><div dir="ltr"> Joe<br clear="none"></div><div><br clear="none"></div>
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On Thursday, April 18, 2024, 08:13:43 a.m. EDT, Felix Sternkopf via gstreamer-devel <gstreamer-devel@lists.freedesktop.org> wrote:
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<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">Dear GST Community,</span></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">i have implemented a rtsp server with the gst-rtsp-server module. The server receives an audio signal via an interaudiosrc and a video signal via an intervideosrc:</span></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">
<i>intervideosrc channel=videosrc </i></span><i><span style="font-size:10.0pt;font-family:Wingdings;">à</span></i><i><span style="font-size:10.0pt;font-family:sans-serif;"> videoconvert
</span></i><i><span style="font-size:10.0pt;font-family:Wingdings;">à</span></i><i><span style="font-size:10.0pt;font-family:sans-serif;"> vaapih264enc bitrate=5000 zerolatency=true
</span></i><i><span style="font-size:10.0pt;font-family:Wingdings;">à</span></i><i><span style="font-size:10.0pt;font-family:sans-serif;"> rtph264pay pt=96 name=pay0</span></i></p>
<p class="yiv4638044512MsoNormal"><i><span style="font-size:10.0pt;font-family:sans-serif;"> interaudiosrc channel=audiosrc
</span></i><i><span style="font-size:10.0pt;font-family:Wingdings;">à</span></i><i><span style="font-size:10.0pt;font-family:sans-serif;"> opusenc bitrate=64
</span></i><i><span style="font-size:10.0pt;font-family:Wingdings;">à</span></i><i><span style="font-size:10.0pt;font-family:sans-serif;"> queue
</span></i><i><span style="font-size:10.0pt;font-family:Wingdings;">à</span></i><i><span style="font-size:10.0pt;font-family:sans-serif;"> rtpopuspay pt=97 name=pay1</span></i></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;"> </span></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">When I try to view the stream via an rtsp client, for example VLC Player the stream works, but the audio signal is about 1 second behind the video signal. I already tried different
audio encoders and different queue parameters like buffer size and leaky queues, but nothing solved the problem.</span></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">When I start the same pipeline as above but mux both signals and write them into a filesink they are synchronized.</span></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;"> </span></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">I know that the server module internally uses the multiudpsink element. Is there any possibility to edit multiudpsink parameters from outside?</span></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">Does anybody have any ideas about this problem? I already read every google result I could find about it.</span></p>
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<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">Best Regards,</span></p>
<p class="yiv4638044512MsoNormal"><span style="font-size:10.0pt;font-family:sans-serif;">Felix Sternkopf</span></p>
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