上传警告信息改为传视频，已测试保存视频，未与接口联调

biz/base_frame_processor.py

@@ -4,6 +4,9 @@
 
 import cv2
 import base64
+import json
+import os
+import subprocess
 import time
 import threading
 import queue
@@ -13,6 +16,7 @@ from concurrent.futures import ThreadPoolExecutor
 
 from common import constants
 from utils.logger import get_logger
+from utils.hls_utils import get_segments_before_current, parse_segment_info
 
 logger = get_logger(__name__)
 
@@ -67,6 +71,12 @@ class BaseFrameProcessorWorker(threading.Thread):
             max_workers=post_workers,
             thread_name_prefix="alert_post"
         )
+        
+        # MP4缓存 {segment_path: mp4_path}
+        self._mp4_cache: Dict[str, str] = {}
+        
+        # 启动视频文件清理线程
+        self._start_cleanup_thread()
     
     def _encode_image_to_base64(self, img) -> str:
         """图像编码为 Base64"""
@@ -102,7 +112,7 @@ class BaseFrameProcessorWorker(threading.Thread):
         return result
     
     def _post_alert(self, msg: dict):
-        """异步发送告警 POST 请求（在线程池中执行）"""
+        """异步发送告警 POST 请求（在线程池中执行）- 旧接口，保留备用"""
         try:
             response = requests.post(constants.ALERT_PUSH_URL, json=msg, timeout=5.0)
             if response.status_code == 200:
@@ -112,6 +122,218 @@ class BaseFrameProcessorWorker(threading.Thread):
         except Exception as e:
             print(f"[ERROR] POST alert request failed: {e}")
     
+    def _post_alert_with_video(self, msg: dict, video_path: str = None):
+        """
+        异步发送告警 POST 请求（带视频，multipart/form-data）
+        
+        Args:
+            msg: 消息内容
+            video_path: 视频文件路径（可选）
+        """
+        try:
+            if video_path and os.path.exists(video_path):
+                # 有视频，使用 multipart/form-data 上传
+                with open(video_path, 'rb') as f:
+                    files = {
+                        'video': f,
+                        'metadata': (None, json.dumps(msg))
+                    }
+                    response = requests.post(constants.ALERT_PUSH_URL, files=files, timeout=10.0)
+            else:
+                # 无视频，也使用 multipart/form-data
+                files = {
+                    'metadata': (None, json.dumps(msg))
+                }
+                response = requests.post(constants.ALERT_PUSH_URL, files=files, timeout=5.0)
+            
+            if response.status_code == 200:
+                logger.info(f"[INFO] POST alert sent successfully for actions: {msg.get('result_type')}")
+            else:
+                logger.warning(f"[WARN] POST alert failed with status: {response.status_code}")
+        except Exception as e:
+            logger.error(f"[ERROR] POST alert request failed: {e}")
+    
+    def _start_cleanup_thread(self):
+        """启动视频文件清理线程"""
+        def cleanup_loop():
+            while not self.stop_event.is_set():
+                try:
+                    self._cleanup_expired_files()
+                except Exception as e:
+                    logger.error(f"[ERROR] Cleanup thread error: {e}")
+                # 每10分钟检查一次
+                self.stop_event.wait(600)
+        
+        thread = threading.Thread(target=cleanup_loop, daemon=True, name="video_cleanup")
+        thread.start()
+        logger.info("[INFO] Video cleanup thread started")
+    
+    def _cleanup_expired_files(self):
+        """清理过期的视频文件"""
+        output_dir = constants.VIDEO_CLIP_OUTPUT_DIR
+        if not output_dir or not os.path.exists(output_dir):
+            return
+        
+        retention_seconds = constants.VIDEO_CLIP_RETENTION_SECONDS
+        current_time = time.time()
+        
+        try:
+            for filename in os.listdir(output_dir):
+                if not filename.endswith('.mp4'):
+                    continue
+                filepath = os.path.join(output_dir, filename)
+                if os.path.isfile(filepath):
+                    file_mtime = os.path.getmtime(filepath)
+                    if current_time - file_mtime > retention_seconds:
+                        try:
+                            os.remove(filepath)
+                            logger.info(f"[INFO] Cleaned up expired video: {filename}")
+                        except Exception as e:
+                            logger.error(f"[ERROR] Failed to delete {filename}: {e}")
+        except Exception as e:
+            logger.error(f"[ERROR] Cleanup expired files error: {e}")
+    
+    def _create_or_get_video_clip(self, segment_path: str, segment_duration: float = None) -> str | None:
+        """
+        创建或获取视频剪辑
+        
+        Args:
+            segment_path: 当前TS分片路径
+            segment_duration: 当前分片时长（秒）
+            
+        Returns:
+            MP4文件路径，失败返回 None
+        """
+        if not segment_path:
+            return None
+        
+        # 检查缓存
+        if segment_path in self._mp4_cache:
+            cached_path = self._mp4_cache[segment_path]
+            if os.path.exists(cached_path):
+                return cached_path
+            else:
+                # 缓存失效，移除
+                del self._mp4_cache[segment_path]
+        
+        # 解析分片信息，构建MP4路径
+        camera_id, timestamp, seq = parse_segment_info(segment_path)
+        if not camera_id:
+            logger.warning(f"[WARN] Failed to parse segment info: {segment_path}")
+            return None
+        
+        output_dir = constants.VIDEO_CLIP_OUTPUT_DIR
+        if not output_dir:
+            logger.warning("[WARN] VIDEO_CLIP_OUTPUT_DIR not configured")
+            return None
+        
+        # 确保输出目录存在
+        os.makedirs(output_dir, exist_ok=True)
+        
+        # MP4文件名
+        mp4_filename = f"{camera_id}_{timestamp}_{seq}.mp4"
+        mp4_path = os.path.join(output_dir, mp4_filename)
+        
+        # 检查是否已存在
+        if os.path.exists(mp4_path):
+            self._mp4_cache[segment_path] = mp4_path
+            return mp4_path
+        
+        # 计算需要回溯的分片数量
+        clip_duration = constants.VIDEO_CLIP_DURATION_SECONDS
+        default_segment_duration = constants.VIDEO_CLIP_DEFAULT_SEGMENT_DURATION
+        
+        effective_duration = segment_duration if segment_duration else default_segment_duration
+        if effective_duration <= 0:
+            effective_duration = default_segment_duration
+        
+        n_segments = int(clip_duration / effective_duration) + 1
+        
+        # 获取需要合并的分片
+        ts_files = get_segments_before_current(segment_path, n_segments)
+        if not ts_files:
+            logger.warning(f"[WARN] No segments found for clip: {segment_path}")
+            return None
+        
+        # 合并TS为MP4
+        if self._merge_ts_to_mp4(ts_files, mp4_path):
+            self._mp4_cache[segment_path] = mp4_path
+            return mp4_path
+        
+        return None
+    
+    def _merge_ts_to_mp4(self, ts_files: list, output_path: str) -> bool:
+        """
+        使用 ffmpeg 合并 TS 分片为 MP4
+        
+        Args:
+            ts_files: TS文件路径列表（按时间顺序）
+            output_path: 输出MP4路径
+            
+        Returns:
+            是否成功
+        """
+        if not ts_files:
+            return False
+        
+        try:
+            # 构建 concat 字符串
+            concat_str = "|".join(ts_files)
+            
+            # ffmpeg 命令
+            cmd = [
+                'ffmpeg',
+                '-i', f'concat:{concat_str}',
+                '-c', 'copy',
+                '-y',  # 覆盖输出文件
+                output_path
+            ]
+            
+            # 执行命令
+            result = subprocess.run(
+                cmd,
+                capture_output=True,
+                timeout=60  # 60秒超时
+            )
+            
+            if result.returncode == 0:
+                logger.info(f"[INFO] Created video clip: {output_path}")
+                return True
+            else:
+                logger.error(f"[ERROR] ffmpeg failed: {result.stderr.decode()}")
+                return False
+                
+        except subprocess.TimeoutExpired:
+            logger.error(f"[ERROR] ffmpeg timeout for {output_path}")
+            return False
+        except FileNotFoundError:
+            logger.error("[ERROR] ffmpeg not found, please install ffmpeg")
+            return False
+        except Exception as e:
+            logger.error(f"[ERROR] Failed to merge TS files: {e}")
+            return False
+    
+    def _process_alert_with_video(self, msg: dict, segment_path: str, segment_duration: float):
+        """
+        处理告警（含视频剪辑）- 在线程池中执行
+        
+        Args:
+            msg: 基础消息
+            segment_path: 当前TS分片路径
+            segment_duration: 当前分片时长
+        """
+        # 尝试创建/获取视频剪辑
+        mp4_path = None
+        if segment_path:
+            mp4_path = self._create_or_get_video_clip(segment_path, segment_duration)
+        
+        # 展开 result_type
+        expanded_msgs = self._expand_msg_by_result_type(msg)
+        
+        # 发送每个展开后的消息
+        for expanded_msg in expanded_msgs:
+            self._post_alert_with_video(expanded_msg, mp4_path)
+    
     def _create_detector(self, params):
         """创建检测器实例"""
         # 使用 type(self) 访问类属性，避免 lambda 被绑定 self 参数
@@ -203,13 +425,24 @@ class BaseFrameProcessorWorker(threading.Thread):
                     try:
                         self.ws_queue.put(msg, timeout=1.0)
                         if push_actions and len(push_actions) > 0:
-                            # 异步发送 POST 请求（提交到线程池）
+                            # 构建消息
                             post_msg = msg.copy()
                             post_msg['type'] = self.POST_TYPE
-                            # 展开 result_type 为多个独立的 msg
-                            expanded_msgs = self._expand_msg_by_result_type(post_msg)
-                            for expanded_msg in expanded_msgs:
-                                self.post_executor.submit(self._post_alert, expanded_msg)
+
+                            #备用backup
+                            #self.post_executor.submit(self._post_alert, post_msg)
+
+                            # 获取视频相关信息（仅HLS模式有）
+                            segment_path = item.get("segment_path")
+                            segment_duration = item.get("segment_duration")
+                            
+                            # 提交到线程池执行（包含视频剪辑和POST）
+                            self.post_executor.submit(
+                                self._process_alert_with_video,
+                                post_msg,
+                                segment_path,
+                                segment_duration
+                            )
                     except queue.Full:
                         logger.warning("[WARN] ws_send_queue full, drop frame message")
 

common/constants.py

@@ -9,6 +9,12 @@ HLS_ROOT_PATH = ""
 
 HLS_SEGMENT_PATTERN = "segment_%09d.ts"  # TS文件命名模式
 
+# 视频剪辑配置
+VIDEO_CLIP_OUTPUT_DIR = ""
+VIDEO_CLIP_DURATION_SECONDS = 30
+VIDEO_CLIP_RETENTION_SECONDS = 3600
+VIDEO_CLIP_DEFAULT_SEGMENT_DURATION = 2
+
 
 def init_config(config_path: str = "config.yaml"):
     """
@@ -18,6 +24,7 @@ def init_config(config_path: str = "config.yaml"):
         config_path: 配置文件路径，默认为 config.yaml
     """
     global ALERT_PUSH_URL, HLS_ROOT_PATH
+    global VIDEO_CLIP_OUTPUT_DIR, VIDEO_CLIP_DURATION_SECONDS, VIDEO_CLIP_RETENTION_SECONDS, VIDEO_CLIP_DEFAULT_SEGMENT_DURATION
     
     try:
         with open(config_path, "r", encoding="utf-8") as f:
@@ -25,6 +32,13 @@ def init_config(config_path: str = "config.yaml"):
         
         ALERT_PUSH_URL = cfg.get("alert_push_url", "")
         # HLS_ROOT_PATH = cfg.get("hls_root_path", "")
+        
+        # 视频剪辑配置
+        VIDEO_CLIP_OUTPUT_DIR = cfg.get("video_clip_output_dir", "")
+        VIDEO_CLIP_DURATION_SECONDS = cfg.get("video_clip_duration_seconds", 30)
+        VIDEO_CLIP_RETENTION_SECONDS = cfg.get("video_clip_retention_seconds", 3600)
+        VIDEO_CLIP_DEFAULT_SEGMENT_DURATION = cfg.get("video_clip_default_segment_duration", 2)
+        
         logger.info(f"[INFO] Config initialized from {config_path}, alert_push_url={ALERT_PUSH_URL}")
         
     except Exception as e:

config.yaml

@@ -41,6 +41,12 @@ hls_downloader_daily_rotate_hour: 3        # 凌晨轮换时间
 hls_downloader_retention_days: 3           # 文件保留天数
 hls_downloader_retry_interval_seconds: 10  # 重试等待秒数
 
+# 视频剪辑配置
+video_clip_output_dir: "D:/ProjectDoc/Police/data/video_clips"  # 视频剪辑输出目录
+video_clip_duration_seconds: 30                                 # 回溯时长（秒）
+video_clip_retention_seconds: 3600                              # 视频文件保留时长（秒）
+video_clip_default_segment_duration: 2                          # 默认分片时长fallback（秒）
+
 service_groups:
 - name: "kadian_group"           # 服务组名称
   video_source_type: "hls"
@@ -49,7 +55,7 @@ service_groups:
   algorithm: "checkpoint"            # 算法类型
   cameras:                       # 该组下的摄像头列表
   - id: 8
-    index: 12345
+    index: "12345"
     name: Entrance
     params:
       roi_points:

utils/hls_utils.py

@@ -1,5 +1,6 @@
 import os
 import glob
+import re
 
 from common import constants
 
@@ -67,3 +68,128 @@ def get_latest_n_segments_by_camera_id(camera_id: str, n: int) -> list:
     """
     camera_root_dir = os.path.join(constants.HLS_ROOT_PATH, camera_id)
     return get_latest_n_segments(camera_root_dir, n)
+
+
+def parse_segment_info(segment_path: str) -> tuple:
+    """
+    从TS分片路径解析出 camera_id, timestamp, sequence
+    
+    Args:
+        segment_path: TS分片路径，格式如: hls_root_path/camera_id/timestamp/segment_xxxxx.ts
+        
+    Returns:
+        (camera_id, timestamp, sequence) 或 (None, None, None) 解析失败时
+    """
+    try:
+        # 获取文件名和目录结构
+        # 路径格式: .../camera_id/timestamp/segment_00001.ts
+        abs_path = os.path.abspath(segment_path)
+        parts = abs_path.split(os.sep)
+        
+        # 从后往前找
+        # parts[-1] = segment_00001.ts
+        # parts[-2] = timestamp
+        # parts[-3] = camera_id
+        
+        if len(parts) < 3:
+            return None, None, None
+        
+        # 解析序号
+        filename = parts[-1]
+        match = re.search(r'segment_(\d+)\.ts$', filename)
+        if not match:
+            return None, None, None
+        sequence = match.group(1)
+        
+        # 时间戳
+        timestamp = parts[-2]
+        
+        # camera_id
+        camera_id = parts[-3]
+        
+        return camera_id, timestamp, sequence
+        
+    except Exception:
+        return None, None, None
+
+
+def get_segments_before_current(current_segment_path: str, n: int) -> list:
+    """
+    获取当前分片之前的n个分片（包括当前分片）
+    
+    Args:
+        current_segment_path: 当前TS分片路径
+        n: 需要获取的分片数量
+        
+    Returns:
+        分片路径列表（按时间顺序，旧的在前），如果不够n个则返回现有的
+    """
+    if not current_segment_path or not os.path.exists(current_segment_path):
+        return []
+    
+    # 解析当前分片信息
+    camera_id, timestamp, current_seq = parse_segment_info(current_segment_path)
+    if not camera_id:
+        return []
+    
+    # 构建摄像头根目录和时间戳目录
+    camera_root_dir = os.path.join(constants.HLS_ROOT_PATH, camera_id)
+    timestamp_dir = os.path.join(camera_root_dir, timestamp)
+    
+    if not os.path.exists(timestamp_dir):
+        return []
+    
+    # 获取当前时间戳文件夹下的所有分片
+    pattern = os.path.join(timestamp_dir, "segment_*.ts")
+    segment_files = glob.glob(pattern)
+    
+    # 按分片序号排序
+    segment_files.sort(key=lambda x: int(os.path.basename(x).split('_')[-1].split('.')[0]))
+    
+    # 找到当前分片的位置
+    try:
+        current_index = segment_files.index(current_segment_path)
+    except ValueError:
+        # 当前分片不在列表中
+        return []
+    
+    # 计算起始位置
+    start_index = max(0, current_index - n + 1)
+    
+    # 返回从起始位置到当前位置的所有分片
+    result = segment_files[start_index:current_index + 1]
+    
+    # 如果不够n个，需要从之前的时间戳文件夹获取
+    if len(result) < n:
+        # 获取所有时间戳文件夹
+        timestamp_folders = []
+        for folder_name in os.listdir(camera_root_dir):
+            folder_path = os.path.join(camera_root_dir, folder_name)
+            if os.path.isdir(folder_path):
+                timestamp_folders.append(folder_name)
+        
+        # 排序，找到当前时间戳之前的时间戳
+        timestamp_folders.sort()
+        try:
+            current_ts_index = timestamp_folders.index(timestamp)
+        except ValueError:
+            current_ts_index = len(timestamp_folders)
+        
+        # 从之前的时间戳文件夹获取分片
+        needed_count = n - len(result)
+        for i in range(current_ts_index - 1, -1, -1):
+            prev_ts_dir = os.path.join(camera_root_dir, timestamp_folders[i])
+            prev_pattern = os.path.join(prev_ts_dir, "segment_*.ts")
+            prev_segments = glob.glob(prev_pattern)
+            prev_segments.sort(key=lambda x: int(os.path.basename(x).split('_')[-1].split('.')[0]))
+            
+            # 取最后 needed_count 个
+            take_count = min(needed_count, len(prev_segments))
+            if take_count > 0:
+                result = prev_segments[-take_count:] + result
+                needed_count -= take_count
+            
+            if needed_count <= 0:
+                break
+    
+    return result