Skip to main content

3-6 Performing Stream Tests on RZ/G2L

In this tutorial, we will perform streaming tests on RZ/G2L with hardware-specific encoder/decoder adjustments. Then we will try to stream videos from RZ/G2L to PC using GStreamer commands.

Basic Test​

First, we can perform a basic test using a video test source. On the terminal of RZ/G2L (or serial monitor), run the following command:

gst-launch-1.0 videotestsrc ! autovideosink

Then, ensure the equirectangular filter is working properly by running:

gst-launch-1.0 videotestsrc ! video/x-raw,width=1920,height=1080 ! videoconvert ! equirectangular ! videoconvert ! autovideosink

The output should look like below:

equirect

Streaming Test​

Now, we will stream from RZ/G2L to mini PC. On the terminal of Ubuntu 22.04, run the following command to wait for h.264 stream from RZ/G2L:

gst-launch-1.0 udpsrc port=5000 ! application/x-rtp,media=video,clock-rate=90000,encoding-name=H264,payload=96 ! rtph264depay ! avdec_h264 ! autovideosink

Run the 3 scripts below, each with different sets of plugins:

run1.sh
gst-launch-1.0 -e filesrc location=./endo01.mp4 ! qtdemux ! queue ! h264parse ! video/x-h264, stream-format=avc,alignment=au ! rtph264pay pt=96 name=pay0 config-interval=3 mtu=6000 ! udpsink host=your-ip-address port=5000
run2.sh
gst-launch-1.0 -e filesrc location=./endo01.mp4 ! qtdemux ! queue ! h264parse ! omxh264dec ! omxh264enc ! rtph264pay config-interval=10 ! udpsink host=your-ip-address port=5000
run3.sh
gst-launch1.0 -e filesrc location=./endo01.mp4 ! h264parse ! omxh264dec ! videoconvert ! equirectangular ! videoconvert ! omxh264enc ! rtph264pay config-interval=10 ! udpsink host=your-ip-address port=5000

Note how different plugins may have an impact to the performance of the video streaming(eg. latency, frame rates, resolution).

warning

Remember to change the IP address to the assigned IP on your RZ/G2L board!

Local Streaming Test​

run4.sh
gst-launch-1.0 -e filesrc location=./endo01.mp4 ! qtdemux ! queue ! h264parse ! omxh264dec ! videoconvert ! equirectangular ! videoconvert ! autovideosink
tip

Since the execution speed is slow, some frames could be dropped during the playback. A longer mp4 test file is recommended as it would be better for demonstration purposes.