web前备份

shared_buffer.py

@@ -0,0 +1,40 @@
+# shared_buffer.py
+import threading
+import numpy as np
+
+class CameraFrameBuffer:
+    """线程安全的摄像头帧缓冲区（去畸变后）"""
+    def __init__(self, cam_names):
+        self.frames = {name: None for name in cam_names}
+        self.locks = {name: threading.Lock() for name in cam_names}
+        self.updated = {name: False for name in cam_names}
+
+    def update(self, name, frame):
+        with self.locks[name]:
+            self.frames[name] = frame.copy()
+            self.updated[name] = True
+
+    def get(self, name):
+        with self.locks[name]:
+            if self.updated[name] and self.frames[name] is not None:
+                return True, self.frames[name].copy()
+            else:
+                return False, None
+
+
+class DetectionResultBuffer:
+    """线程安全的检测结果缓冲区"""
+    def __init__(self, cam_names):
+        self.results = {name: (None, [], []) for name in cam_names}  # (image, boxes, scores)
+        self.lock = threading.Lock()
+
+    def update(self, name, image, boxes, scores):
+        with self.lock:
+            self.results[name] = (image.copy() if image is not None else None, list(boxes), list(scores))
+
+    def get(self, name):
+        with self.lock:
+            img, boxes, scores = self.results[name]
+            if img is not None:
+                return img.copy(), list(boxes), list(scores)
+            return None, [], []