Added ram-capture method (397f6ef1) · Commits · OpenFlexure / openflexure-microscope-server

openflexure_microscope/api/v2/views/actions/init.py

+5 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,11 @@ _actions = {
		"view_class": camera.CaptureAPI,
		"conditions": True,
		},
		"ramCapture": {
		"rule": "/camera/ram-capture/",
		"view_class": camera.RAMCaptureAPI,
		"conditions": True,
		},
		"previewStart": {
		"rule": "/camera/preview/start",
		"view_class": camera.GPUPreviewStartAPI,

+53 −0

Original line number	Diff line number	Diff line
		@@ -16,6 +16,7 @@ from openflexure_microscope.utilities import filter_dict
		from openflexure_microscope.api.v2.views.captures import capture_schema

		import logging
		import io
		from flask import jsonify, request, abort, url_for, redirect, send_file


		@@ -85,6 +86,58 @@ class CaptureAPI(View):
		return output


		@ThingAction
		class RAMCaptureAPI(View):
		"""
		Create a non-persistant image capture.
		"""

		@use_args(
		{
		"use_video_port": fields.Boolean(missing=False),
		"bayer": fields.Boolean(
		missing=False, description="Return with raw bayer data"
		),
		"resize": fields.Dict(
		missing=None, example={"width": 640, "height": 480}
		), # TODO: Validate keys
		}
		)
		@doc_response(200, mimetype="image/jpeg")
		def post(self, args):
		"""
		Create a non-persistant image capture.
		"""
		microscope = find_component("org.openflexure.microscope")

		resize = args.get("resize", None)
		if resize:
		if ("width" in resize) and ("height" in resize):
		resize = (
		int(resize["width"]),
		int(resize["height"]),
		) # Convert dict to tuple
		else:
		abort(404)

		# Open a BytesIO stream to be destroyed once request has returned
		with microscope.camera.lock, io.BytesIO() as stream:

		microscope.camera.capture(
		stream,
		use_video_port=args.get("use_video_port"),
		resize=resize,
		bayer=args.get("bayer"),
		)

		stream.seek(0)

		return send_file(
		io.BytesIO(stream.getbuffer()),
		mimetype="image/jpeg"
		)


		@ThingAction
		class GPUPreviewStartAPI(View):
		"""