将model的解析移到model文件内

common/camera_config.py

@@ -1,4 +1,11 @@
 from dataclasses import dataclass
+import json
+import base64
+import yaml
+from utils.logger import get_logger
+
+logger = get_logger(__name__)
+
 
 @dataclass
 class CameraConfig:
@@ -6,3 +13,37 @@ class CameraConfig:
     name: str
     index: str
     params: dict = None  # 额外参数字典，可选
+
+
+def parse_cameras_from_json(json_str: str) -> list[CameraConfig]:
+    """从 JSON 字符串解析摄像头配置（支持 base64 编码）"""
+    try:
+        # 尝试 base64 解码
+        try:
+            decoded = base64.b64decode(json_str).decode('utf-8')
+            cameras_data = json.loads(decoded)
+        except Exception:
+            # 如果不是 base64，直接解析 JSON
+            cameras_data = json.loads(json_str)
+
+        return [CameraConfig(
+            id=c["id"],
+            name=c.get("name", f"cam_{c['id']}"),
+            index=c.get("index"),
+            params=c.get("params")
+        ) for c in cameras_data]
+    except Exception as e:
+        logger.error(f"[ERROR] Failed to parse cameras JSON: {e}")
+        return []
+
+
+def parse_cameras_from_yaml(yaml_path: str) -> list[CameraConfig]:
+    """从 YAML 文件解析摄像头配置"""
+    with open(yaml_path, "r", encoding="utf-8") as f:
+        cfg = yaml.safe_load(f)
+    return [CameraConfig(
+        id=c["id"],
+        name=c.get("name", f"cam_{c['id']}"),
+        index=c.get("index"),
+        params=c.get("params")
+    ) for c in cfg.get("cameras", [])]