I use GScrop tool to capture eg. 688x136@402fps videos with GS camera:
https://stamm-wilbrandt.de/GS
After using it for any mode different than 1456x1088, no rpicam* command preview does work (fails to start streaming).
I use "GScrop 1456 1088 60 100" to reset to full view, then rpicam* previews work again.
Today I played with picamera2 zoom demo:
https://github.com/raspberrypi/picamera ... es/zoom.py
It was surprisingly easy to get preview of centered 688x136 crop I typically use with GScrop tool:
Hopefully simple to answer questions first:
1) how to reduce height of preview window to 136?
2) is pure 688x136 preview possible without a window title?
Next I tried to record 688x136 video (with default framerate for now) based on capture_video.py:
https://github.com/raspberrypi/picamera ... e_video.py
I tried many things, but always full frame got recorded![:-(]( "Sad")
How can I tell the encoder to capture 688x136 centered frame only, that I was able to preview?
P.S.
Is it possible to preview both GS cameras connected to my Pi5 together, with single picamera2 app?
That would allow for correct stereo preview, better than this handcrafted prototype ...
![Image]()
https://stamm-wilbrandt.de/GS
After using it for any mode different than 1456x1088, no rpicam* command preview does work (fails to start streaming).
I use "GScrop 1456 1088 60 100" to reset to full view, then rpicam* previews work again.
Today I played with picamera2 zoom demo:
https://github.com/raspberrypi/picamera ... es/zoom.py
It was surprisingly easy to get preview of centered 688x136 crop I typically use with GScrop tool:
Code:
import timefrom picamera2 import Picamera2, Previewpicam2 = Picamera2()preview_config = picam2.create_preview_configuration({"size": (688, 136)})picam2.configure(preview_config)picam2.start_preview(Preview.QTGL)picam2.set_controls({"ScalerCrop": (376, 476, 688, 136)})picam2.start()time.sleep(99)Hopefully simple to answer questions first:
1) how to reduce height of preview window to 136?
2) is pure 688x136 preview possible without a window title?
Next I tried to record 688x136 video (with default framerate for now) based on capture_video.py:
https://github.com/raspberrypi/picamera ... e_video.py
I tried many things, but always full frame got recorded
How can I tell the encoder to capture 688x136 centered frame only, that I was able to preview?
P.S.
Is it possible to preview both GS cameras connected to my Pi5 together, with single picamera2 app?
That would allow for correct stereo preview, better than this handcrafted prototype ...
Statistics: Posted by HermannSW — Sun Jun 23, 2024 9:51 am