NekoCWD/libcamera
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py: Use exceptions instead of returning error codes

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We have multiple methods which return an error code, mimicking the C++
API. Using exceptions is more natural in the Python API, so change all
those methods to raise an Exception instead.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Jacopo Mondi <jacopo@jmondi.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Tomi Valkeinen 2023-05-30 15:01:31 +03:00 • committed by Laurent Pinchart
parent 5b2f1ce501
commit 1fb31ac4f4
6 changed files with 91 additions and 118 deletions
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21
src/py/examples/simple-continuous-capture.py
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@ -28,8 +28,7 @@ class CameraCaptureContext:
# Acquire the camera for our use
ret = cam.acquire()
assert ret == 0
cam.acquire()
# Configure the camera
@ -37,8 +36,7 @@ class CameraCaptureContext:
stream_config = cam_config.at(0)
ret = cam.configure(cam_config)
assert ret == 0
cam.configure(cam_config)
stream = stream_config.stream
@ -62,8 +60,7 @@ class CameraCaptureContext:
req = cam.create_request(idx)
buffer = allocator.buffers(stream)[i]
ret = req.add_buffer(stream, buffer)
assert ret == 0
req.add_buffer(stream, buffer)
self.reqs.append(req)
@ -73,13 +70,11 @@ class CameraCaptureContext:
def uninit_camera(self):
# Stop the camera
ret = self.cam.stop()
assert ret == 0
self.cam.stop()
# Release the camera
ret = self.cam.release()
assert ret == 0
self.cam.release()
# A container class for our state
@ -145,8 +140,7 @@ class CaptureContext:
for cam_ctx in self.camera_contexts:
for req in cam_ctx.reqs:
ret = cam_ctx.cam.queue_request(req)
assert ret == 0
cam_ctx.cam.queue_request(req)
# Use Selector to wait for events from the camera and from the keyboard
@ -177,8 +171,7 @@ def main():
# Start the cameras
for cam_ctx in ctx.camera_contexts:
ret = cam_ctx.cam.start()
assert ret == 0
cam_ctx.cam.start()
ctx.capture()