Updated project structure and some file names.

Restored `requirements.txt`

Updated `setup.py` to include new repository url and contact details.

Moved the rtsp code from `record` to `stream`.

Updated project structure to make it more readable and developer friendly - moved mixins to the `mixins` package, moved handlers to the `handlers` package.

Moved files not belonging to anything in particular to the `util` package.

Updated `camera` class to also defer login call.

Deleted unused files like `config_handler`.

reolinkapi/mixins/stream.py

@@ -0,0 +1,52 @@
+import string
+from random import random
+from typing import Any, Optional
+from urllib import parse
+from io import BytesIO
+
+import requests
+from PIL.Image import Image, open as open_image
+
+from reolinkapi.utils.rtsp_client import RtspClient
+
+
+class StreamAPIMixin:
+    """ API calls for opening a video stream or capturing an image from the camera."""
+
+    def open_video_stream(self, callback: Any = None, proxies: Any = None) -> Any:
+        """
+        'https://support.reolink.com/hc/en-us/articles/360007010473-How-to-Live-View-Reolink-Cameras-via-VLC-Media-Player'
+        Blocking function creates a generator and returns the frames as it is spawned
+        :param callback:
+        :param proxies: Default is none, example: {"host": "localhost", "port": 8000}
+        """
+        rtsp_client = RtspClient(
+            ip=self.ip, username=self.username, password=self.password, proxies=proxies, callback=callback)
+        return rtsp_client.open_stream()
+
+    def get_snap(self, timeout: float = 3, proxies: Any = None) -> Optional[Image]:
+        """
+        Gets a "snap" of the current camera video data and returns a Pillow Image or None
+        :param timeout: Request timeout to camera in seconds
+        :param proxies: http/https proxies to pass to the request object.
+        :return: Image or None
+        """
+        data = {
+            'cmd': 'Snap',
+            'channel': 0,
+            'rs': ''.join(random.choices(string.ascii_uppercase + string.digits, k=10)),
+            'user': self.username,
+            'password': self.password,
+        }
+        parms = parse.urlencode(data).encode("utf-8")
+
+        try:
+            response = requests.get(self.url, proxies=proxies, params=parms, timeout=timeout)
+            if response.status_code == 200:
+                return open_image(BytesIO(response.content))
+            print("Could not retrieve data from camera successfully. Status:", response.status_code)
+            return None
+
+        except Exception as e:
+            print("Could not get Image data\n", e)
+            raise