Error sending UDP packets

[Nicolas Dufresne]

Le mercredi 02 décembre 2020 à 08:04 -0600, n1tesla a écrit :
> Hi, 
> I am trying to use my cellphone as a IP camera. I am using following command
> for this:
> 
> gst-launch-1.0 rtspsrc location=rtsp://10.217.62.99:5554/video/h264
> latency=1000 ! rtph264depay ! h264parse ! nvv4l2decoder ! nvvidconv !
> video/x-raw,format=BGRx ! identity drop-allocation=true ! v4l2sink
> device=/dev/video1
> 
> It gives me in below error :
> New clock: GstSystemClock
> Progress: (request) Sending PLAY request
> Progress: (request) Sending PLAY request
> Progress: (request) Sent PLAY request
> NvMMLiteOpen : Block : BlockType = 261 
> NVMEDIA: Reading vendor.tegra.display-size : status: 6 
> NvMMLiteBlockCreate : Block : BlockType = 261 
> 
> (gst-launch-1.0:19188): GStreamer-CRITICAL **: 16:58:14.368:
> gst_mini_object_unref: assertion 'mini_object != NULL' failed
> NvMMLiteOpen : Block : BlockType = 261 
> NVMEDIA: Reading vendor.tegra.display-size : status: 6 
> NvMMLiteBlockCreate : Block : BlockType = 261 
> WARNING: from element
> /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0/GstUDPSink:udpsink1: Error
> sending UDP packets
> Additional debug info:
> gstmultiudpsink.c(729): gst_multiudpsink_send_messages ():
> /GstPipeline:pipeline0/GstRTSPSrc:rtspsrc0/GstUDPSink:udpsink1:
> client 10.217.62.99:0, reason: Error sending message: Invalid argument
> reference in DPB was never decoded
> 
> How can I solve this ?

This is a weird one, since "reference in DPB was never decoded", is an error
from the decoder, the "Invalid Argument" might be from multiudpsink, but it's a
bit confused. Meanwhile, notice the assertion, clearly this is bad, you might
want to look into that first. As this is using NVidia's fork of GStreamer, make
sure you have the source and you will likely have to go ask on NVidia's forum
for help.

Use env: G_DEBUG=fatal_criticals

This will abort your program on the assertion, with gdb you will be able to
inspect the location in the code were this happens.

good luck,
Nicolas

> 
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> 
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> 
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