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cafe0917c7
* __main__.py * app.py * models.py * plus.py * stats.py In addition a new module was introduced: types There all TypedDicts are included. Bitte geben Sie eine Commit-Beschreibung für Ihre Änderungen ein. Zeilen,
110 lines
3.9 KiB
Python
110 lines
3.9 KiB
Python
import datetime
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import logging
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import os
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import requests
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from frigate.const import PLUS_ENV_VAR, PLUS_API_HOST
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from requests.models import Response
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import cv2
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from numpy import ndarray
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logger = logging.getLogger(__name__)
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def get_jpg_bytes(image: ndarray, max_dim: int, quality: int) -> bytes:
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if image.shape[1] >= image.shape[0]:
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width = min(max_dim, image.shape[1])
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height = int(width * image.shape[0] / image.shape[1])
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else:
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height = min(max_dim, image.shape[0])
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width = int(height * image.shape[1] / image.shape[0])
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original = cv2.resize(image, dsize=(width, height), interpolation=cv2.INTER_AREA)
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ret, jpg = cv2.imencode(".jpg", original, [int(cv2.IMWRITE_JPEG_QUALITY), quality])
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jpg_bytes = jpg.tobytes()
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return jpg_bytes if type(jpg_bytes) is bytes else b""
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class PlusApi:
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def __init__(self) -> None:
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self.host = PLUS_API_HOST
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if PLUS_ENV_VAR in os.environ:
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self.key = os.environ.get(PLUS_ENV_VAR)
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else:
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self.key = None
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self._is_active: bool = self.key is not None
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self._token_data: dict = {}
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def _refresh_token_if_needed(self) -> None:
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if (
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self._token_data.get("expires") is None
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or self._token_data["expires"] - datetime.datetime.now().timestamp() < 60
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):
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if self.key is None:
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raise Exception("Plus API not activated")
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parts = self.key.split(":")
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r = requests.get(f"{self.host}/v1/auth/token", auth=(parts[0], parts[1]))
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self._token_data = r.json()
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def _get_authorization_header(self) -> dict:
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self._refresh_token_if_needed()
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return {"authorization": f"Bearer {self._token_data.get('accessToken')}"}
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def _get(self, path: str) -> Response:
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return requests.get(
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f"{self.host}/v1/{path}", headers=self._get_authorization_header()
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)
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def _post(self, path: str, data: dict) -> Response:
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return requests.post(
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f"{self.host}/v1/{path}",
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headers=self._get_authorization_header(),
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json=data,
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)
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def is_active(self) -> bool:
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return self._is_active
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def upload_image(self, image: ndarray, camera: str) -> str:
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r = self._get("image/signed_urls")
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presigned_urls = r.json()
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if not r.ok:
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raise Exception("Unable to get signed urls")
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# resize and submit original
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files = {"file": get_jpg_bytes(image, 1920, 85)}
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data = presigned_urls["original"]["fields"]
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data["content-type"] = "image/jpeg"
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r = requests.post(presigned_urls["original"]["url"], files=files, data=data)
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if not r.ok:
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logger.error(f"Failed to upload original: {r.status_code} {r.text}")
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raise Exception(r.text)
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# resize and submit annotate
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files = {"file": get_jpg_bytes(image, 640, 70)}
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data = presigned_urls["annotate"]["fields"]
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data["content-type"] = "image/jpeg"
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r = requests.post(presigned_urls["annotate"]["url"], files=files, data=data)
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if not r.ok:
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logger.error(f"Failed to upload annotate: {r.status_code} {r.text}")
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raise Exception(r.text)
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# resize and submit thumbnail
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files = {"file": get_jpg_bytes(image, 200, 70)}
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data = presigned_urls["thumbnail"]["fields"]
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data["content-type"] = "image/jpeg"
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r = requests.post(presigned_urls["thumbnail"]["url"], files=files, data=data)
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if not r.ok:
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logger.error(f"Failed to upload thumbnail: {r.status_code} {r.text}")
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raise Exception(r.text)
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# create image
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r = self._post(
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"image/create", {"id": presigned_urls["imageId"], "camera": camera}
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)
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if not r.ok:
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raise Exception(r.text)
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# return image id
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return str(presigned_urls.get("imageId"))
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