gst-plugin-linescan/network_guide.md
yair 94f7c04dc6 Fix recv_raw_column.py height mismatch and update script paths in docs
- Fixed HEIGHT from 480 to 640 to match actual videotestsrc output
- Added DEBUG flag to control debug output visibility
- Added cv2.namedWindow() for proper window initialization
- Updated all Python script references in markdown files to scripts/ folder
- Updated network_guide.md with correct frame dimensions and Python receiver option
2025-11-14 15:33:17 +02:00

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# how to send a line
## Sender (crop to first column, send raw over UDP)
```pwsh
gst-launch-1.0 -v `
videotestsrc pattern=smpte ! `
videocrop left=0 right=639 top=0 bottom=0 ! `
video/x-raw,format=RGB,width=1,height=640,framerate=30/1 ! `
udpsink host=127.0.0.1 port=5000
```
**Note:** Default `videotestsrc` height is 640, not 480. Adjust caps to match your actual frame size.
## Receiver Options
### GStreamer Receiver (raw UDP → display)
```pwsh
gst-launch-1.0 -v `
udpsrc port=5000 caps="video/x-raw,format=RGB,width=1,height=640,framerate=30/1" ! `
videoconvert ! `
autovideosink
```
### Python/OpenCV Receiver
```pwsh
uv run scripts/recv_raw_column.py
```
See [`scripts/recv_raw_column.py`](scripts/recv_raw_column.py) for the Python implementation with debug options.