awskvswebrtcsink: Gstreamer encountered a general stream error.

Alec Gurman alec at
Wed Apr 12 16:45:36 UTC 2023


I am attempting to get awskvswebrtcsink working on a Jetson Xavier NX,
Ubuntu 18.04.4, JP4.4, DS5.0. I have custom built GStreamer 1.20.6 and
built gst-plugins-rs/net/webrtc with Cargo 1.68.2. I am using the default
1.14 compiled L4T and DS gstreamer plugins which seem to be working fine
for my other pipelines. My current pipeline (which is constructed via
gst-python) looks like the following:

RTSP Camera/s -> uridecodebin -> nvstreammux -> nvstreamdemux ->
nvvideoconvert -> capsfilter  (video/x-raw(memory:NVMM),format=I420) ->

I have a similar pipeline working well with kvssink, however when trying
awskvswebrtcsink, I am not getting any output.  Codec pipeline discovery
seems to work for H264 / H265 / VP9, though shortly after discovery the
below logs appear (with GST_DEBUG=4):

GST_EVENT gstevent.c:892:gst_event_new_caps: creating caps event
GST_EVENT gstevent.c:973:gst_event_new_segment: creating segment event time
segment start=0:00:00.000000000, offset=0:00:00.000000000,
stop=99:99:99.999999999, rate=1.000000, applied_rate=1.000000, flags=0x00,
time=0:00:00.000000000, base=0:00:00.000000000, position 0:00:00.000000000,
duration 99:99:99.999999999
posting message: GStreamer encountered a general stream error.
posted error message: GStreamer encountered a general stream error.

Anyone know how I can debug this further, or if this has been seen before?

Mechatronic Engineer

*p* +61 434 554 916
*e* alec at <alec at>
*w* <>

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