remote host can't get the rtp stream

[Im-JimmyHu]

1. I convert the usb camera intput on the xvaier to rtsp stream,like this:

cvlc -vvv v4l2:///dev/video0 --sout '#transcode{vcodec=h264,vb=800,acodec=mp4a}:rtp{sdp=rtsp://192.168.1.82:8554/live.ts}' -I dummy

192.168.1.82 is the ip of xvaier.and i use the “rtsp://192.168.1.82:8554/live.ts” as url1

2. then i use the url1 as the input of detectnet ,and push the inference result to rtp steam ,like this

detectnet rtsp://192.168.1.82:8554/live.ts rtp:192.168.1.16:1234
##192.168.1.16 is the ip of remote host

i open the vlc to view "rtp:192.168.1.16:1234" on the remote host.however, the vlc is stuck after geting a frame.so i read the log the detectnet print. my error simliar to this,but it not help me.

the complete log of a frame :

1 objects detected detected obj 0 class #1 (person) confidence=0.889160 bounding box 0 (905.625000, 106.523438) (1893.750000, 1076.835938) w=988.125000 h=970.312500

[TRT] ------------------------------------------------ [TRT] Timing Report /data/usr/local/bin/networks/SSD-Mobilenet-v2/ssd_mobilenet_v2_coco.uff [TRT] ------------------------------------------------ [TRT] Pre-Process CPU 0.04627ms CUDA 0.12086ms [TRT] Network CPU 12.59311ms CUDA 10.94038ms [TRT] Post-Process CPU 0.01789ms CUDA 0.00102ms [TRT] Visualize CPU 0.16637ms CUDA 1.71008ms [TRT] Total CPU 12.82365ms CUDA 12.77235ms [TRT] ------------------------------------------------

[gstreamer] gstDecoder -- failed to retrieve next image buffer detectnet: failed to capture video frame nvbuf_utils: dmabuf_fd 1369 mapped entry NOT found nvbuf_utils: NvReleaseFd Failed... Exiting... nvbuf_utils: dmabuf_fd 1389 mapped entry NOT found nvbuf_utils: NvReleaseFd Failed... Exiting... nvbuf_utils: dmabuf_fd 1377 mapped entry NOT found nvbuf_utils: NvReleaseFd Failed... Exiting... nvbuf_utils: dmabuf_fd 1379 mapped entry NOT found nvbuf_utils: NvReleaseFd Failed... Exiting... nvbuf_utils: dmabuf_fd 1375 mapped entry NOT found nvbuf_utils: NvReleaseFd Failed... Exiting... nvbuf_utils: dmabuf_fd 1383 mapped entry NOT found nvbuf_utils: NvReleaseFd Failed... Exiting... 1 objects detected detected obj 0 class #1 (person) confidence=0.897949 bounding box 0 (883.125000, 86.748047) (1895.625000, 1078.945312) w=1012.500000 h=992.197266 nvbuf_utils: dmabuf_fd 1385 mapped entry NOT found nvbuf_utils: NvReleaseFd Failed... Exiting...

any help would be apprecitaed.

[dusty-nv]

Can you run video-viewer rtsp://192.168.1.82:8554/live.ts and confirm that you can view your RTSP stream with a display attached to your Jetson?

If not, you could try rebuilding jetson-inference with cmake -DENABLE_NVMM=off option:

cd jetson-inference/build
cmake -DENABLE_NVMM=off ../
make
sudo make install

[Im-JimmyHu]

@dusty-nv yes，if i just

video-viewer rtsp://192.168.1.82:8554/live.ts

although the fps is not good(5fps,the log show every 2 seconds,the decoder failde to capture the video frame) and the sreen sudeenly expanded to full screen, it looks like no problem.even i use the rtsp from remote host(192.168.1.16) as the input:

video-viewer rtsp://192.168.1.16:8554/live.ts rtp://192.168.1.16:1234

no problem,too.