Custom camera provider

[Timm]

I tried to define a custom camera provider by inheriting a class from kivy.core.camera.CameraBase. I tried different ways to register the new provider. But I had no success. Is there any way to extend the available camera providers from my application?

[Timm]

Am Mittwoch, 17. Januar 2018 19:35:38 UTC+1 schrieb Timm:

I tried to define a custom camera provider by inheriting a class from kivy.core.camera.CameraBase. I tried different ways to register the new provider. But I had no success. Is there any way to extend the available camera providers from my application?

I found a possible solution: First I make an empty list of possible camera providers. After that I overwrite the kivy,core.camera.Camera with my own instance.

import os
os.environ['KIVY_CAMERA'] = ""
from kivy.lang import Builder
from kivy.app import App
from kivy.core.camera import Camera as CameraContainer
from kivy.core.camera import CameraBase
from kivy.uix.camera import Camera

class CameraTest(CameraBase):
    '''
    Implementation of CameraBase using OpenCV
    '''
    _update_ev = None

    def __init__(self, **kwargs):
        self._device = None
        super(CameraTest, self).__init__(**kwargs)

    def init_camera(self):
        pass

    def _update(self, dt):
        pass

CameraContainer = CameraTest()


if __name__ == '__main__':
    class Example(App):

        def build(self):

    

            cam = Camera()

            return cam

    Example().run()