yair/gst-plugin-linescan
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

rolling

Browse Source
This commit is contained in:
yair 2025-11-14 16:29:31 +02:00
parent 72e7091c61
commit 2699913e92
2 changed files with 27 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

29
network_guide.md
View File

@ -1,5 +1,24 @@
# how to send a line
real data
```powershell
gst-launch-1.0 idsueyesrc config-file=ini/200fps-2456x4pix-cw.ini exposure=5 framerate=300 `
! videoconvert ! queue `
! udpsink host=127.0.0.1 port=5000
```
### Python/OpenCV Receiver
```pwsh
uv run scripts/recv_raw_column.py
```
or rolling like
```pwsh
uv run .\scripts\recv_raw_rolling.py
```
See [`scripts/recv_raw_column.py`](scripts/recv_raw_column.py) for the Python implementation with debug options.
# demo data
## Sender (crop to first column, send raw over UDP)
```pwsh
gst-launch-1.0 -v `
@ -9,10 +28,6 @@ gst-launch-1.0 -v `
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 `
@ -21,9 +36,3 @@ gst-launch-1.0 -v `
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.

13
scripts/recv_raw_rolling.py
View File

@ -64,15 +64,18 @@ while True:
# Apply rotation if configured
if ROTATION is not None:
column = cv2.rotate(frame, ROTATION)
rotated = cv2.rotate(frame, ROTATION)
else:
column = frame
rotated = frame
# Insert the column into the rolling buffer at the current position
rolling_buffer[:, current_column:current_column+COLUMN_WIDTH, :] = column
# Extract only the first column for smoother rolling (1 pixel/frame)
column = rotated[:, 0:1, :]
# Insert the single column into the rolling buffer at the current position
rolling_buffer[:, current_column:current_column+1, :] = column
# Move to the next column position, wrapping around when reaching the end
current_column = (current_column + COLUMN_WIDTH) % DISPLAY_WIDTH
current_column = (current_column + 1) % DISPLAY_WIDTH
# Display the rolling buffer
cv2.imshow("Rolling Column Stream", rolling_buffer)