Compositor synthesis over four paths，The frequency of the signal sent by appsink step down

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

hello, I have a requirement here to synthesize six-way video,but I found when Compositor synthesis over four paths，The frequency of the signal sent by appsink step down，Does compositor have a quantity limit

2

Hi,
Do you mean 3rdparty gstreamer compositor?
https://gstreamer.freedesktop.org/data/doc/gstreamer/head/gst-plugins-bad-plugins/html/gst-plugins-bad-plugins-compositor.html

Please share your full pipeline for reference.

3

yes,nvcompositor doesn’t work with appsink ,so I use compositor.here is my pipeline
gst-launch-1.0 compositor name=comp
sink_0::xpos=0 sink_0::ypos=0 sink_0::width=300 sink_0::height=300
sink_1::xpos=300 sink_1::ypos=0 sink_1::width=300 sink_1::height=300
sink_2::xpos=0 sink_2::ypos=600 sink_2::width=300 sink_2::height=300
sink_3::xpos=0 sink_3::ypos=300 sink_3::width=300 sink_3::height=300
sink_4::xpos=300 sink_4::ypos=300 sink_4::width=300 sink_4::height=300
sink_5::xpos=600 sink_5::ypos=300 sink_5::width=300 sink_5::height=300 !
queue ! appsink
rtspsrc location=“rtsp://admin:hik12345@172.16.2.250:554” ! rtph264depay ! h264parse ! omxh264dec ! timeoverlay ! queue2 ! comp.
rtspsrc location=“rtsp://admin:hik12345@172.16.2.248:554” ! rtph264depay ! h264parse ! omxh264dec ! comp.
rtspsrc location=“rtsp://admin:hik12345@172.16.2.248:554” ! rtph264depay ! h264parse ! omxh264dec ! comp.
rtspsrc location=“rtsp://admin:hik12345@172.16.2.248:554” ! rtph264depay ! h264parse ! omxh264dec ! comp.
rtspsrc location=“rtsp://admin:hik12345@172.16.2.248:554” ! rtph264depay ! h264parse ! omxh264dec ! comp.
rtspsrc location=“rtsp://admin:hik12345@172.16.2.248:554” ! rtph264depay ! h264parse ! omxh264dec ! comp. -e

4

Hi,
nvcompositor only supports nvoverlaysink. You have to use compositor in your case.
You can try to run at max performance by executing ‘sudo ./jetson_clocks.sh’.

You may also refer to below sample code:
[url]https://devtalk.nvidia.com/default/topic/1037450/jetson-tx2/use-gstreamer-or-tegra_multimedia_api-to-decode-video-would-be-more-efficient-and-increase-throughpu-/post/5270860/#5270860[/url]

Ans then you can leverage NvBufferComposite()