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Merge pull request #1590 from LucaSoldi/some-feature
Added Raspberry Pi Camera Component
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commit
79a2d40f4d
86
homeassistant/components/camera/rpi_camera.py
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86
homeassistant/components/camera/rpi_camera.py
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"""Camera platform that has a Raspberry Pi camera."""
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import os
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import subprocess
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import logging
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import shutil
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from homeassistant.components.camera import Camera
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_LOGGER = logging.getLogger(__name__)
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def setup_platform(hass, config, add_devices, discovery_info=None):
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"""Setup the Raspberry Camera."""
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if shutil.which("raspistill") is None:
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_LOGGER.error("Error: raspistill not found")
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return False
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setup_config = (
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{
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"name": config.get("name", "Raspberry Pi Camera"),
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"image_width": int(config.get("image_width", "640")),
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"image_height": int(config.get("image_height", "480")),
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"image_quality": int(config.get("image_quality", "7")),
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"image_rotation": int(config.get("image_rotation", "0")),
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"timelapse": int(config.get("timelapse", "2000")),
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"horizontal_flip": int(config.get("horizontal_flip", "0")),
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"vertical_flip": int(config.get("vertical_flip", "0")),
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"file_path": config.get("file_path",
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os.path.join(os.path.dirname(__file__),
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'image.jpg'))
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}
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)
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# check filepath given is writable
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if not os.access(setup_config["file_path"], os.W_OK):
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_LOGGER.error("Error: file path is not writable")
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return False
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add_devices([
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RaspberryCamera(setup_config)
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])
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class RaspberryCamera(Camera):
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"""Raspberry Pi camera."""
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def __init__(self, device_info):
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"""Initialize Raspberry Pi camera component."""
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super().__init__()
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self._name = device_info["name"]
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self._config = device_info
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# kill if there's raspistill instance
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subprocess.Popen(['killall', 'raspistill'],
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stdout=subprocess.DEVNULL,
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stderr=subprocess.STDOUT)
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cmd_args = [
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'raspistill', '--nopreview', '-o', str(device_info["file_path"]),
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'-t', '0', '-w', str(device_info["image_width"]),
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'-h', str(device_info["image_height"]),
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'-tl', str(device_info["timelapse"]),
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'-q', str(device_info["image_quality"]),
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'-rot', str(device_info["image_rotation"])
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]
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if device_info["horizontal_flip"]:
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cmd_args.append("-hf")
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if device_info["vertical_flip"]:
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cmd_args.append("-vf")
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subprocess.Popen(cmd_args,
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stdout=subprocess.DEVNULL,
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stderr=subprocess.STDOUT)
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def camera_image(self):
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"""Return raspstill image response."""
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with open(self._config["file_path"], 'rb') as file:
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return file.read()
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@property
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def name(self):
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"""Return the name of this camera."""
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return self._name
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