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--- projects:farmrobot:nvidia-jetson-tx1 [2021/01/10 02:12]
jason
+++ projects:farmrobot:nvidia-jetson-tx1 [2021/01/10 19:28] (current)
jason
@@ Line 6: / Line 6: @@
 | ''jetson''  | ''jetson''    |
-===== Running YOLOv5 with on-board camera =====
+===== Running YOLOv5 with on-board CSI camera or external USB camera (Motion JPEG) =====
 Arguments for NVIDIA's GStreamer camera pipeline depend on supported camera formats.
@@ Line 13: / Line 13: @@
 <file shell>
+# On-board CSI camera
 python3.8 detect.py --source "nvarguscamerasrc ! video/x-raw(memory:NVMM), width=(int)2592, height=(int)1458, framerate=(fraction)30/1, format=(string)NV12 ! nvvidconv flip-method=0 ! video/x-raw, format=(string)BGRx ! videoconvert ! video/x-raw, format=(string)BGR ! appsink"
+# External USB camera (Motion JPEG)
+python3.8 detect.py --source "v4l2src device=/dev/video1 ! image/jpeg, width=(int)1920, height=(int)1080, framerate=30/1 ! nvv4l2decoder mjpeg=1 ! nvvidconv ! video/x-raw,format=BGRx ! videoconvert ! video/x-raw, format=BGR ! appsink"
 </file>
+<WRAP important>
+In the example above, the on-board CSI camera is represented by ''/dev/video0'' and the external USB camera by ''/dev/video1''. Depending on the configuration of connected cameras, those paths might differ.
+</WRAP>
+<WRAP info>
+See this [[https://stackoverflow.com/questions/65638140/create-pipeline-for-gstreamer-for-usb-camera-mjpg-format|Stack Overflow post]].
+</WRAP>
 ===== Current data =====

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