Dear GST Community,

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:

            intervideosrc channel=videosrc à videoconvert à vaapih264enc bitrate=5000 zerolatency=true à rtph264pay pt=96 name=pay0

            interaudiosrc channel=audiosrc à opusenc bitrate=64 à queue à rtpopuspay pt=97 name=pay1

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.

When I start the same pipeline as above but mux both signals and write them into a filesink they are synchronized.

I know that the server module internally uses the multiudpsink element. Is there any possibility to edit multiudpsink parameters from outside?

Does anybody have any ideas about this problem? I already read every google result I could find about it.

Best Regards,

Felix Sternkopf