VLC can't play video stream from Orin AGX

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
1

Hi, I have created UDP video stream on Orin AGX. It can play with Gstreamer command but can not play with VLC. Anything I miss here?

Sender:
out_pipeline_str << "appsrc ! video/x-raw, format=(string)BGR ! "
"videoconvert ! video/x-raw, format=(string)I420 ! nvvidconv ! "
"video/x-raw(memory:NVMM), format=(string)NV12 ! nvv4l2h264enc insert-sps-pps=true insert-vui=true ! "
“h264parse ! rtph264pay pt=96 ! udpsink host=HOST_IP port=8001 auto-multicast=0”;

Receiver:
gst-launch-1.0 udpsrc port=8001 ! application/x-rtp,encoding-name=H264 ! rtph264depay ! h264parse ! nvv4l2decoder ! nvvidconv ! xvimagesink

VLC sdp:

c=IN IP4 ORIN_IP
m=video 8001 RTP/AVP 96
a=rtpmap:96 H264/90000

3

Hi,
A user has shared a method:
Gstreamer TCPserversink 2-3 seconds latency - #13 by Bazziil

Please take a look and give it a try.

1 Like
4

Thank you! It turned out that I picked a wrong port.

I changed to another port. Now I can use VLC to play on the same Orin device, but not on a ubuntu laptop.

When running vlc on Orin, I found that vlc is trying to open Nvidia library. Does this mean Nvidia library is needed to play UDP stream? If yes, which libraries are needed?

$ vlc -v vlc_test.sdp
VLC media player 3.0.9.2 Vetinari (revision 3.0.9.2-0-gd4c1aefe4d)
[0000aaaae266c5c0] main libvlc: Running vlc with the default interface. Use ‘cvlc’ to use vlc without interface.
[0000ffff48c19fc0] h264 packetizer warning: waiting for SPS/PPS
[0000ffff48c19fc0] h264 packetizer warning: waiting for SPS/PPS
[0000ffff48c19fc0] h264 packetizer warning: waiting for SPS/PPS
libva info: VA-API version 1.7.0
libva info: Trying to open /usr/lib/aarch64-linux-gnu/dri/nvidia_drv_video.so
libva info: va_openDriver() returns -1
[0000ffff340038b0] glconv_vaapi_x11 gl error: vaInitialize: unknown libva error
[0000ffff344ef620] vaapi_filters filter warning: Using SW chroma filter for 800x800 VAOP → I420
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory
Failed to open VDPAU backend libvdpau_nvidia.so: cannot open shared object file: No such file or directory

5

Hi,
It is a solution for desktop GPU so the libs are not loaded on Jetson platforms. And then it falls back to software decoding.

6

got you! With sdp file, vlc can play UDP stream from a Windows system now. HOORAY!

At the end, we would like to play it with a in-house player, but this in-house player only accept regular URI. Is it possible to play UDP stream with regular URI (like udp://@PORT) instead of a sdp file?

7

SDP file is required for dynamic payload. You may use RTP/MP2T that uses a static payload (33) and can be used with H264 or H265.
Try as sender:

out_pipeline_str << "appsrc ! video/x-raw, format=(string)BGR ! "
"videoconvert ! video/x-raw, format=(string)BGRx ! nvvidconv ! "
"video/x-raw(memory:NVMM), format=(string)NV12 ! nvv4l2h264enc insert-sps-pps=true insert-vui=true idrinterval=15 ! "
"h264parse ! mpegtsmux ! rtpmp2tpay ! udpsink host=HOST_IP port=8001 auto-multicast=0";

You may find further details from this post:

8

It worked. Thank you so much!

10

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