Issue with video writing (4k) in Jetson nano

Robotics & Edge Computing Jetson & Embedded Systems Jetson Nano
,
1

Hi
I tried to write a video file from 4k camera(Connected to Jetson nano) using gstreamer pipeline.But fps is too low .The gstreamer pipeline used is given below
gst-launch-1.0 nvarguscamerasrc ! ‘video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160, format=(string)NV12,framerate=(fraction)16/1’ ! nvv4l2h264enc bitrate=80000 ! h264parse ! qtmux ! filesink location=2.mp4 -e
If resolution is 1920x1080 ,video is fine.What can be done in improving the fps?
Kindly help me
Thanks in advance

3

Hi,
On Jetson Nano, we can achieve 4Kp30 encoding, so the bottleneck should not be in encoder. Please rune the pipeline and check if your source can reach target framerate:

$ gst-launch-1.0 -v nvarguscamerasrc ! ‘video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160, format=(string)NV12,framerate=(fraction)16/1’ ! fpsdisplaysink text-overlay=0 video-sink=nvoverlaysink
4

Thanks for your reply.I tried this pipeline and it is working fine
Log
gst-launch-1.0 -v nvarguscamerasrc ! ‘video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160,format=(string)NV12,framerate=(fraction)16/1’ ! fpsdisplaysink text-overlay=0 video-sink=nvoverlaysink
Setting pipeline to PAUSED …
Pipeline is live and does not need PREROLL …
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0/GstNvOverlaySink-nvoverlaysink:nvoverlaysink-nvoverlaysink0: sync = true
Setting pipeline to PLAYING …
New clock: GstSystemClock
/GstPipeline:pipeline0/GstNvArgusCameraSrc:nvarguscamerasrc0.GstPad:src: caps = video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160, format=(string)NV12, framerate=(fraction)16/1
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:src: caps = video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160, format=(string)NV12, framerate=(fraction)16/1
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0.GstGhostPad:sink.GstProxyPad:proxypad0: caps = video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160, format=(string)NV12, framerate=(fraction)16/1
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0/GstNvOverlaySink-nvoverlaysink:nvoverlaysink-nvoverlaysink0.GstPad:sink: caps = video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160, format=(string)NV12, framerate=(fraction)16/1
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0.GstGhostPad:sink: caps = video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160, format=(string)NV12, framerate=(fraction)16/1
/GstPipeline:pipeline0/GstCapsFilter:capsfilter0.GstPad:sink: caps = video/x-raw(memory:NVMM), width=(int)3840, height=(int)2160, format=(string)NV12, framerate=(fraction)16/1
GST_ARGUS: Creating output stream
CONSUMER: Waiting until producer is connected…
GST_ARGUS: Available Sensor modes :
GST_ARGUS: 3840 x 2160 FR = 16.670000 fps Duration = 59988004 ; Analog Gain range min 0.000000, max 72.000000; Exposure Range min 111000, max 44663000;

GST_ARGUS: Running with following settings:
Camera index = 0
Camera mode = 0
Output Stream W = 3840 H = 2160
seconds to Run = 0
Frame Rate = 16.670000
GST_ARGUS: Setup Complete, Starting captures for 0 seconds
GST_ARGUS: Starting repeat capture requests.
CONSUMER: Producer has connected; continuing.
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0/GstNvOverlaySink-nvoverlaysink:nvoverlaysink-nvoverlaysink0: sync = true
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0: last-message = rendered: 10, dropped: 0, current: 18.85, average: 18.85
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0: last-message = rendered: 19, dropped: 0, current: 17.22, average: 18.04
/GstPipeline:pipeline0/GstFPSDisplaySink:fpsdisplaysink0: last-message = rendered: 28, dropped: 0, current: 16.52, average: 17.53

why can’t we get this performance while writing into a file ?My real use case is RTMP streaming .That also not working properly.It also has the same issue which I have faced in writing into a video file.

5

Hi,
Please set the property to nvv4l2h264enc and try again:

  maxperf-enable      : Enable or Disable Max Performance mode
                        flags: readable, writable, changeable only in NULL or READY state
                        Boolean. Default: false

For confirming hardware encoding is good, suggest you save it to a video file and check framerate with Mediainfo.

6

Ok .I will check