Dominique Galland

After downgrading to python 3.6 i was able to run the python 3 demo but I have error FF25 USB_CAMERA_FRAME_INDEX_ERROR and FF24 USB_CAMERA_DATA_LEN_ERROR. I use the MT9F001 camera wiht the...

I compared line by line the ArduCamCfg structure between the cpp version and the python version. It works with python if I change two members Bad: cfg = {"u32CameraType":0x4D091031, "u32Width":Width,"u32Height":Height,...

Thanks for your reply ! So I understand that the design with two threads is an absolute necessity, the driver can not work without it. It would be easier for...

Thank you for your answer, yes that was it! It works after increasing gpu_mem Increase gpu_mem in /boot/config.txt sudo nano /boot/config.txt gpu_mem=256 Dominique

I think of course that has some things to do with the bayer pattern. If you look at another project [link](https://github.com/cpixip/simple_picam_lens_compensation/blob/master/v1_geometry_and_modes/geo_05.py) we see that it padd differently according to hflip...

Yes, that was it. For V1 the script only works if hflip and vflip = True. For other values it is necessary to reorient the table as in the cpixip...

Thank you for your answer. I'm looking now for the V2 camera. Your script only works if vflip and hflip are False, the opposite of v1 ! It seems that...

Complicated things about bayer pattern ! So I try your two scripts old and new with V1 and V2 and also hflip and vflip trying to find a coherent explanation...

Hi, I complete David's answer. Be careful after picam2.start() it is better to wait for the camera to stabilize exposure, gains, ... time.sleep(2) Then to measure the througput I advise...

Hi, Running libcamera-jpeg as a command line in a subprocess is certainly not the most efficient way to do a capture, there is the cost of launching a process and...