Jetson Nano saving two seperate video files

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

Hi,

I have below two pipelines working properly but separately. I need to run them together but the sources are same

gst-launch-1.0 -e v4l2src device=/dev/video1 ! queue ! ‘video/x-raw, format=(string)YUY2, width=(int)1920, height=(int)1080, framerate=(fraction)30/1’ ! nvvidconv ! ‘video/x-raw(memory:NVMM),format=RGBA’ ! comp.sink_0 v4l2src device=/dev/video0 ! queue ! ‘video/x-raw, framerate=(fraction)30/1’ ! nvvidconv ! ‘video/x-raw(memory:NVMM),format=RGBA’ ! comp.sink_1 nvcompositor name=comp sink_0::xpos=0 sink_0::ypos=0 sink_0::width=960 sink_0::height=540 sink_1::xpos=960 sink_1::ypos=0 sink_1::width=960 sink_1::height=540 ! nvvidconv ! nvv4l2h264enc maxperf-enable=1 bitrate=4000000 profile=4 ! h264parse ! mux. pulsesrc device=“alsa_input.usb-VXIS_Inc_ezcap_U3_capture-02.analog-stereo” ! ‘audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=44100, channels=(int)2’ ! queue ! audioconvert ! voaacenc ! aacparse ! mpegtsmux name=mux ! filesink location=“pip3.ts”

gst-launch-1.0 -e v4l2src device=/dev/video1 ! queue ! ‘video/x-raw, format=(string)YUY2, width=(int)1920, height=(int)1080, framerate=(fraction)30/1’ ! nvvidconv ! ‘video/x-raw(memory:NVMM),format=RGBA’ ! comp.sink_0 v4l2src device=/dev/video0 ! queue ! ‘video/x-raw, framerate=(fraction)30/1’ ! nvvidconv ! ‘video/x-raw(memory:NVMM),format=RGBA’ ! comp.sink_1 nvcompositor name=comp sink_0::xpos=0 sink_0::ypos=0 sink_1::xpos=1500 sink_1::ypos=800 sink_1::width=320 sink_1::height=240 ! nvvidconv ! nvv4l2h264enc maxperf-enable=1 bitrate=4000000 profile=4 ! h264parse ! mux. pulsesrc device=“alsa_input.usb-VXIS_Inc_ezcap_U3_capture-02.analog-stereo” ! ‘audio/x-raw, format=(string)S16LE, layout=(string)interleaved, rate=44100, channels=(int)2’ ! queue ! audioconvert ! voaacenc ! aacparse ! mpegtsmux name=mux ! filesink location=“pip2.ts”

Now I need to run these two pipelines at the same time ans make 2 different files. How can I combine these using the tee element.

Or is there any other method using the nvcompositor and save 2 files separately?
One file must have the videos picture in picture
Other file must have the videos side by side

2

You may try using tee for forking your streams. You would add queue in front of each sub pipeline.

gst-launch-1.0 -ev videotestsrc is-live=true ! video/x-raw, format=YUY2, width=1920, height=1080, framerate=30/1 ! nvvidconv ! 'video/x-raw(memory:NVMM),format=RGBA' ! tee name=cap1    videotestsrc is-live=true ! queue ! video/x-raw, framerate=30/1 ! nvvidconv ! 'video/x-raw(memory:NVMM),format=RGBA' ! tee name=cap2    cap1. ! queue ! comp1.sink_0    cap2. ! queue ! comp1.sink_1    nvcompositor name=comp1 sink_0::xpos=0 sink_0::ypos=0 sink_0::width=960 sink_0::height=540  sink_1::xpos=960 sink_1::ypos=0 sink_1::width=960 sink_1::height=540 ! nvvidconv ! nvv4l2h264enc maxperf-enable=1 bitrate=4000000 profile=4 ! h264parse ! mux1.    cap1. ! queue ! comp2.sink_0   cap2. ! queue ! comp2.sink_1   nvcompositor name=comp2 sink_0::xpos=0 sink_0::ypos=0 sink_1::xpos=1500 sink_1::ypos=800 sink_1::width=320 sink_1::height=240 ! nvvidconv ! nvv4l2h264enc maxperf-enable=1 bitrate=4000000 profile=4 ! h264parse ! queue ! mux2.   audiotestsrc ! audio/x-raw, format=S16LE, layout=interleaved, rate=44100, channels=2 ! queue ! audioconvert ! voaacenc ! aacparse ! queue ! mux1.   audiotestsrc ! audio/x-raw, format=S16LE, layout=interleaved, rate=44100, channels=2 ! queue ! audioconvert ! voaacenc ! aacparse ! queue ! mux2.   mpegtsmux name=mux1 ! filesink location=test1.ts    mpegtsmux name=mux2 ! filesink location=test2.ts
1 Like
3

Thank you I will try this method