gst_rtsp_src_receive_response (): /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source:

[SlowMonk]

Open the Gstream with

GST_DEBUG=1  gst-launch-1.0 v4l2src \
> device=/dev/video0 ! videoconvert \
> ! video/x-raw,format=I420 \
> ! x264enc tune=zerolatency bitrate=1024 speed-preset=ultrafast \
> ! rtph264pay name=pay0 config-interval=1 pt=96 ! gdppay \
> ! tcpserversink host=127.0.0.1 port=8554
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Setting pipeline to PLAYING ...
New clock: GstSystemClock
Redistribute latency...

and try to playback and got following error

GST_DEBUG=1 gst-launch-1.0 playbin uri=rtsp://127.0.0.1:8554
Setting pipeline to PAUSED ...
Pipeline is live and does not need PREROLL ...
Progress: (open) Opening Stream
Progress: (connect) Connecting to rtsp://127.0.0.1:8554
Progress: (open) Retrieving server options
ERROR: from element /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source: Could not read from resource.
Additional debug info:
gstrtspsrc.c(6323): gst_rtsp_src_receive_response (): /GstPlayBin:playbin0/GstURIDecodeBin:uridecodebin0/GstRTSPSrc:source:
Could not receive message. (Timeout while waiting for server response)
ERROR: pipeline doesn't want to preroll.
Setting pipeline to NULL ...
Freeing pipeline ...

[aler9]

This is not related to MediaMTX in any way.