nvcamerasrc gstreamer timelapse

Autonomous Machines Jetson & Embedded Systems Jetson TX2
1

Hi,

I am looking into creating a dataset for my machine learning application.

I have an e-Con low light camera installed on Jetson TX2. Using GStreamer I want to capture a Picture into file ever sec for a long period of time (something that at the end looks like a timelapse).

Does anyone have any idea of this pipeline can look like, more importantly that its stable for a long period of time.

Any recommendations of test pipeline would be really appreciated.

2

You may try the following:

  1. Use an external disk to be sure you won’t fill your system partition, create a directory there for storing pictures.

  2. In that directory, you can record 1 picture per second with:

gst-launch-1.0 nvcamerasrc ! nvvidconv ! queue ! videorate ! video/x-raw,framerate=1/1 ! jpegenc ! multifilesink location=./frame%06d.jpg

Note that you will have to stop manually with Ctrl-C.

  1. Now make a h264 video @30fps in matroska container with:
gst-launch-1.0 -e multifilesrc location="frame%06d.jpg" caps="image/jpeg,framerate=30/1" ! jpegdec ! omxh264enc ! matroskamux ! filesink location=timelapse.mkv
3

Thank you, Runned it overnight, so far works perfectly fine.

Just curious what happens after 27 hours, as there are 8 zeros in the image name. will the naming be automatically expanded upon?