Nvv4l2decoder does not work with rtsp streaming

[damoder.mogilipaka2]

Hi,

I am working on a streaming use-case on Jetson Nano board.
I am using VLC player as RTSP server and Jetson Nano board as client.
I have connected Nano board and windows laptop with ethernet cable (its a back to back connection).

I am running following pipeline on Nano board.

gst-launch-1.0 rtspsrc location=rtsp://192.168.225.163:8554/test latency=500 ! rtph264depay ! h264parse ! queue ! nvv4l2decoder enable-max-performance=1 ! nvoverlaysink

The above pipeline does not throw an errors but its not showing output display.

But, if I use the omxh264dec element then the above pipeline works fine and i could able to see the display on monitor.

Why the above RTSP streaming pipeline does not work with nvv4l2decoder element ?

Please help me to solve the issue.

Thanks,
Damoder

[DaneLLL]

Hi,
If you use JP4.4, you may remove h264parse and try again. Or upgrade to JP4.4.1.

May be same issue as this:

Issues decoding RTSP stream using nvv4l2decoder with Jetpack 4.4

Hi, I just upgraded from L4T 32.3.1 to L4T 32.4.3 (Jetpack 4.4) and a GStreamer pipeline that used to work on 32.3.1 no longer works on 32.4.3. I believe this has something to do with the nvv4l2decoder filter. The pipeline in question is GST_DEBUG=3 gst-launch-1.0 -e rtspsrc location="rtsp://192.168.0.103:554/av0_0" is-live=true protocols=tcp ! rtph264depay ! h264parse ! nvv4l2decoder ! video/x-raw\(memory:NVMM\) ! nvvidconv ! video/x-raw\(memory:NVMM\),width=256,height=144 ! nvvidconv ! vide…

[damoder.mogilipaka2]

Hi,

Thanks for your reply.

The streaming pipeline works fine after removing h264parse element.
Now, the working pipeline is:
gst-launch-1.0 rtspsrc location=rtsp://192.168.225.163:8554/test latency=500 ! rtph264depay ! queue ! nvv4l2decoder enable-max-performance=1 ! nvoverlaysink

But, the file based decoding pipeline does not work if we remove the h264parse element.

Below pipeline does not work without h264parse element:
gst-launch-1.0 filesrc location=AIR_1080p30_nv12.h264 ! nvv4l2decoder ! nvoverlaysink

It throws “Caught SIGSEGV” error on terminal.

Below pipeline works with h264parse element.
gst-launch-1.0 filesrc location=AIR_1080p30_nv12.h264 ! h264parse ! nvv4l2decoder ! nvoverlaysink

Could you please explain the reason why h264parse is not required for streaming pipeline and why it is required for file-based decoding pipeline ?

Thanks again for your quick response.

Best Regards,
Damoder

[DaneLLL]

Hi ,
It is an issue in JP4.4. We have fixed int in JP4.4.1. Please upgrade to P4.4.1 and try again.