Add Anjoy and OpenIPC cameras to vendor list (#376)

### Motivation

We want to use two new camera firmwares with rosys.

### Implementation

This adds anjoy cameras with their (observed) mac range and OpenIPC
cameras with the mac range that we set for them.
The functions for determining vendor and mac were also refactored to use
dicts. Otherwise, we would run into a "too many return statements"
Pylint error now.

Author: NiklasNeugebauer

rosys/vision/rtsp_camera/vendors.py

@@ -7,29 +7,42 @@ class VendorType(Enum):
     AXIS = 3
     REOLINK = 4
     UNIARCH = 5
+    ANJOY = 6
+    OPENIPC = 7
     OTHER = -1
 
 
+mac_prefix_to_vendor: dict[str, VendorType] = {
+    'e0:62:90': VendorType.JOVISION,
+    'e4:24:6c': VendorType.DAHUA,
+    '3c:e3:6b': VendorType.DAHUA,
+    'd4:43:0e': VendorType.DAHUA,
+    'fc:5f:49': VendorType.DAHUA,
+    '30:dd:aa': VendorType.DAHUA,
+    'ec:71:db': VendorType.REOLINK,
+    '6c:f1:7e': VendorType.UNIARCH,
+    'f0:00:06': VendorType.ANJOY,
+    '7a:7a:21': VendorType.OPENIPC,
+}
+
+
+vendor_to_url: dict[VendorType, str] = {
+    VendorType.JOVISION: 'rtsp://admin:admin@{ip}/profile{substream}',
+    VendorType.DAHUA: 'rtsp://admin:Adminadmin@{ip}/cam/realmonitor?channel=1&subtype={substream}',
+    VendorType.REOLINK: 'rtsp://admin:Adminadmin@{ip}/Preview_01_{"sub" if substream else "main"}',
+    VendorType.UNIARCH: 'rtsp://admin:Admin_adm1n@{ip}/media/video{2 if substream else 1}',
+    VendorType.ANJOY: 'rtsp://admin:123456@{ip}/h264/ch{2 if substream else 1}',
+    VendorType.OPENIPC: 'rtsp://root:Adminadmin@{ip}/stream={substream}',
+}
+
+
 def mac_to_vendor(mac: str) -> VendorType:
-    if mac.startswith('e0:62:90'):
-        return VendorType.JOVISION
-    if mac.startswith(('e4:24:6c', '3c:e3:6b', 'd4:43:0e', 'fc:5f:49', '30:dd:aa')):
-        return VendorType.DAHUA
-    if mac.startswith('ec:71:db'):
-        return VendorType.REOLINK
-    if mac.startswith('6c:f1:7e'):
-        return VendorType.UNIARCH
-    return VendorType.OTHER
+    prefix = mac[:8]
+    return mac_prefix_to_vendor.get(prefix, VendorType.OTHER)
 
 
 def mac_to_url(mac: str, ip: str, substream: int = 0) -> str | None:
     vendor = mac_to_vendor(mac)
-    if vendor == VendorType.JOVISION:
-        return f'rtsp://admin:admin@{ip}/profile{substream}'
-    if vendor == VendorType.DAHUA:
-        return f'rtsp://admin:Adminadmin@{ip}/cam/realmonitor?channel=1&subtype={substream}'
-    if vendor == VendorType.REOLINK:
-        return f'rtsp://admin:Adminadmin@{ip}/Preview_01_{"sub" if substream else "main"}'
-    if vendor == VendorType.UNIARCH:
-        return f'rtsp://admin:Admin_adm1n@{ip}/media/video{2 if substream else 1}'
-    return None
+    if vendor == VendorType.OTHER:
+        return None
+    return vendor_to_url[vendor].format(ip=ip, substream=substream)