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Line 522: − − * Gstreamer cmd line for OpenCV − − I think maybe OpenCV do not support I420 data format input，so you should convert it to BGR format. − − <code>gst-launch-1.0 nvv4l2camerasrc ! video/x-raw(memory:NVMM), format=(string)UYVY, width=(int)1920, height=(int)1080 ! nvvidconv ! video/x-raw(memory:NVMM), format=(string)I420 ! nvvidconv ! video/x-raw, format=(string)BGRx ! videoconvert ! video/x-raw, format=(string)BGR ! appsink</code> Line 666:
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VEYE CS Camera for Jetson TX2 (view source)
Revision as of 09:13, 21 July 2022
, 09:13, 21 July 2022→Gstreamer Usage
<code>gst-launch-1.0 nvcompositor name=comp sink_0::xpos=0 sink_0::ypos=0 sink_0::width=$WIDTH sink_0::height=$HEIGHT sink_1::xpos=$WIDTH sink_1::ypos=0 sink_1::width=$WIDTH sink_1::height=$HEIGHT ! nvoverlaysink nvv4l2camerasrc device=/dev/video0 ! $CAPS ! nvvidconv ! "video/x-raw(memory:NVMM),format=(string)I420"! comp. nvv4l2camerasrc device=/dev/video1 ! $CAPS ! nvvidconv ! "video/x-raw(memory:NVMM),format=(string)I420"! comp.</code>
<code>gst-launch-1.0 nvcompositor name=comp sink_0::xpos=0 sink_0::ypos=0 sink_0::width=$WIDTH sink_0::height=$HEIGHT sink_1::xpos=$WIDTH sink_1::ypos=0 sink_1::width=$WIDTH sink_1::height=$HEIGHT ! nvoverlaysink nvv4l2camerasrc device=/dev/video0 ! $CAPS ! nvvidconv ! "video/x-raw(memory:NVMM),format=(string)I420"! comp. nvv4l2camerasrc device=/dev/video1 ! $CAPS ! nvvidconv ! "video/x-raw(memory:NVMM),format=(string)I420"! comp.</code>
*Record FHD in H.264 format to a video file
*Record FHD in H.264 format to a video file
====== Save image to file ======
====== Save image to file ======
<code>./yavta -c1 -FUYVY-1920x1080.yuv --skip 0 -f UYVY -s 1920x1080 /dev/video0</code>
<code>./yavta -c1 -FUYVY-1920x1080.yuv --skip 0 -f UYVY -s 1920x1080 /dev/video0</code>
===== Opencv =====
Opencv appsink cannot read from NVMM memory. You would use nvvidconv for copying into standard CPU memory.
We provide 2 samples [https://github.com/veyeimaging/nvidia_jetson_veye_bsp/tree/master/samples/opencv here].
====Video Control Toolkits Manual====
====Video Control Toolkits Manual====