350 lines
20 KiB
Python
350 lines
20 KiB
Python
# -*- coding: utf-8 -*-
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import os
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from multiprocessing import Process, Queue
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from os import getpid
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from time import time, sleep
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from traceback import format_exc
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import psutil
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from loguru import logger
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from util.LogUtils import init_log
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from concurrency.FileUploadThread import ImageFileUpload
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from entity.FeedBack import message_feedback
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from enums.AnalysisStatusEnum import AnalysisStatus
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from enums.ExceptionEnum import ExceptionType
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from exception.CustomerException import ServiceException
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from util.Cv2Utils import check_video_stream, build_video_info, pull_read_video_stream, clear_pull_p
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from util.QueUtil import get_no_block_queue, put_queue, clear_queue, put_queue_result
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class PullVideoStreamProcess2(Process):
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__slots__ = ("_command_queue", "_msg", "_context", "_fb_queue", "_pull_queue", "_image_queue", "_analyse_type",
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"_frame_num")
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def __init__(self, *args):
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super().__init__()
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# 自带参数
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self._command_queue = Queue()
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# 传参
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self._msg, self._context, self._fb_queue, self._pull_queue, self._image_queue, self._analyse_type, \
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self._frame_num = args
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def sendCommand(self, result):
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try:
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self._command_queue.put(result, timeout=10)
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except Exception:
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logger.error("添加队列超时异常：{}, requestId:{}", format_exc(), self._msg.get("request_id"))
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raise ServiceException(ExceptionType.SERVICE_INNER_EXCEPTION.value[0],
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ExceptionType.SERVICE_INNER_EXCEPTION.value[1])
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@staticmethod
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def start_File_upload(*args):
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fb_queue, context, msg, image_queue, analyse_type = args
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image_thread = ImageFileUpload(fb_queue, context, msg, image_queue, analyse_type)
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image_thread.setDaemon(True)
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image_thread.start()
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return image_thread
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@staticmethod
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def check(start_time, service_timeout, request_id, image_thread):
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if time() - start_time > service_timeout:
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logger.error("分析超时, requestId: {}", request_id)
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raise ServiceException(ExceptionType.ANALYSE_TIMEOUT_EXCEPTION.value[0],
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ExceptionType.ANALYSE_TIMEOUT_EXCEPTION.value[1])
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# 检测图片上传线程是否正常运行
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if image_thread is not None and not image_thread.is_alive():
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logger.error("未检测到图片上传线程活动，图片上传线程可能出现异常, requestId:{}", request_id)
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raise Exception("未检测到图片上传线程活动，图片上传线程可能出现异常!")
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class OnlinePullVideoStreamProcess2(PullVideoStreamProcess2):
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__slots__ = ()
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def run(self):
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# 避免循环调用性能影响, 优先赋值
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context, msg, analyse_type = self._context, self._msg, self._analyse_type
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request_id, base_dir, env = msg["request_id"], context['base_dir'], context['env']
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pull_url, frame_num = msg["pull_url"], self._frame_num
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pull_stream_timeout = int(context["service"]["cv2_pull_stream_timeout"])
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read_stream_timeout = int(context["service"]["cv2_read_stream_timeout"])
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service_timeout = int(context["service"]["timeout"])
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command_queue, pull_queue, image_queue = self._command_queue, self._pull_queue, self._image_queue
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fb_queue = self._fb_queue
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image_thread, pull_p = None, None
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width, height, width_height_3, all_frames, w_2, h_2 = None, None, None, 0, None, None
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frame_list, frame_index_list = [], []
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ex = None
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ex_status = True
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full_timeout = None
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try:
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# 初始化日志
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init_log(base_dir, env)
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logger.info("开启实时视频拉流进程, requestId:{}", request_id)
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# 开启图片上传线程
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image_thread = self.start_File_upload(fb_queue, context, msg, image_queue, analyse_type)
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# 初始化拉流工具类
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cv2_init_num, init_pull_num, concurrent_frame = 0, 1, 1
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start_time, pull_start_time, read_start_time = time(), None, None
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while True:
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# 检测任务执行是否超时、图片上传线程是否正常
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self.check(start_time, service_timeout, request_id, image_thread)
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command_msg = get_no_block_queue(command_queue)
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if command_msg is not None:
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if 'stop' == command_msg.get("command"):
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logger.info("开始停止实时拉流进程, requestId:{}", request_id)
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break
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if 'stop_ex' == command_msg.get("command"):
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logger.info("开始停止实时拉流进程, requestId:{}", request_id)
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ex_status = False
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break
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# 检测视频信息是否存在或拉流对象是否存在
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if check_video_stream(width, height):
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if len(frame_list) > 0:
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put_queue(pull_queue, (4, (frame_list, frame_index_list, all_frames)), timeout=1)
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frame_list, frame_index_list = [], []
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logger.info("开始重新获取视频信息: {}次, requestId: {}", cv2_init_num, request_id)
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if pull_start_time is None:
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pull_start_time = time()
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pull_stream_init_timeout = time() - pull_start_time
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if pull_stream_init_timeout > pull_stream_timeout:
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logger.info("开始拉流超时, 超时时间：{}, requestId:{}", pull_stream_init_timeout, request_id)
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raise ServiceException(ExceptionType.PULLSTREAM_TIMEOUT_EXCEPTION.value[0],
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ExceptionType.PULLSTREAM_TIMEOUT_EXCEPTION.value[1])
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cv2_init_num += 1
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width, height, width_height_3, all_frames, w_2, h_2 = build_video_info(pull_url, request_id)
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if width is None:
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sleep(1)
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continue
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pull_start_time, cv2_init_num = None, 1
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frame, pull_p, width, height = pull_read_video_stream(pull_p, pull_url, width, height, width_height_3,
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w_2, h_2, request_id)
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if frame is None:
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if len(frame_list) > 0:
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put_queue(pull_queue, (4, (frame_list, frame_index_list, all_frames)), timeout=1)
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frame_list, frame_index_list = [], []
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logger.info("获取帧为空, 开始重试: {}次, requestId: {}", init_pull_num, request_id)
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if read_start_time is None:
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read_start_time = time()
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pull_stream_read_timeout = time() - read_start_time
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if pull_stream_read_timeout > read_stream_timeout:
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logger.info("拉流过程中断了重试超时, 超时时间: {}, requestId: {}", pull_stream_read_timeout,
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request_id)
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raise ServiceException(ExceptionType.READSTREAM_TIMEOUT_EXCEPTION.value[0],
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ExceptionType.READSTREAM_TIMEOUT_EXCEPTION.value[1])
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init_pull_num += 1
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continue
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init_pull_num, read_start_time = 1, None
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if pull_queue.full():
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logger.info("pull拉流队列满了:{}, requestId: {}", os.getppid(), request_id)
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if full_timeout is None:
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full_timeout = time()
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if time() - full_timeout > 180:
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logger.error("拉流队列阻塞异常, requestId: {}", request_id)
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raise ServiceException(ExceptionType.SERVICE_INNER_EXCEPTION.value[0],
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ExceptionType.SERVICE_INNER_EXCEPTION.value[1])
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if psutil.Process(getpid()).ppid() == 1:
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clear_pull_p(pull_p, request_id)
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ex_status = False
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for q in [command_queue, pull_queue, image_queue]:
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clear_queue(q)
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if image_thread and image_thread.is_alive():
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put_queue(image_queue, (2, "stop"), timeout=1)
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image_thread.join(120)
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logger.info("检测到父进程异常停止, 请检测服务器资源是否负载过高, requestId: {}", request_id)
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put_queue(self._fb_queue, message_feedback(request_id,
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AnalysisStatus.FAILED.value,
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self._analyse_type,
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ExceptionType.NO_RESOURCES.value[0],
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ExceptionType.NO_RESOURCES.value[1]))
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break
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del frame
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continue
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full_timeout = None
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frame_list.append(frame)
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frame_index_list.append(concurrent_frame)
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if len(frame_list) >= frame_num:
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put_queue(pull_queue, (4, (frame_list, frame_index_list, all_frames)), timeout=1, is_ex=True)
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frame_list, frame_index_list = [], []
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concurrent_frame += 1
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del frame
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except ServiceException as s:
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logger.error("实时拉流异常: {}, 队列大小:{}, requestId:{}", s.msg, pull_queue.qsize(), request_id)
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ex = s.code, s.msg
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except Exception:
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logger.error("实时拉流异常: {}, 队列大小:{}, requestId:{}", format_exc(), pull_queue.qsize(), request_id)
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ex = ExceptionType.SERVICE_INNER_EXCEPTION.value[0], ExceptionType.SERVICE_INNER_EXCEPTION.value[1]
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finally:
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clear_pull_p(pull_p, request_id)
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del frame_list, frame_index_list
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if ex_status:
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if ex:
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code, msg = ex
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r = put_queue_result(pull_queue, (1, code, msg), timeout=10)
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else:
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r = put_queue_result(pull_queue, (2,), timeout=10)
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if r:
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c_time = time()
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while time() - c_time < 180:
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command_msg = get_no_block_queue(command_queue)
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if command_msg is not None:
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if 'stop' == command_msg.get("command"):
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logger.info("开始停止实时拉流进程, requestId:{}", request_id)
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if image_thread and image_thread.is_alive():
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put_queue(image_queue, (2, "stop"), timeout=1)
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logger.info("停止图片上传线程, requestId:{}", request_id)
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image_thread.join(120)
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logger.info("停止图片上传线程结束, requestId:{}", request_id)
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break
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for q in [command_queue, pull_queue, image_queue]:
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clear_queue(q)
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if image_thread and image_thread.is_alive():
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put_queue(image_queue, (2, "stop"), timeout=1)
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logger.info("停止图片上传线程, requestId:{}", request_id)
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image_thread.join(120)
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logger.info("停止图片上传线程结束, requestId:{}", request_id)
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logger.info("实时拉流线程结束, 图片队列: {}, 拉流队列: {}, 图片进程的状态: {} requestId: {}",
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image_queue.qsize(), pull_queue.qsize(), image_thread.is_alive(), request_id)
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class OfflinePullVideoStreamProcess2(PullVideoStreamProcess2):
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__slots__ = ()
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def run(self):
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msg, context, frame_num, analyse_type = self._msg, self._context, self._frame_num, self._analyse_type
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request_id, base_dir, env, pull_url = msg["request_id"], context['base_dir'], context['env'], msg["pull_url"]
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ex, service_timeout = None, int(context["service"]["timeout"])
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command_queue, pull_queue, image_queue, fb_queue = self._command_queue, self._pull_queue, self._image_queue, \
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self._fb_queue
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image_thread, pull_p = None, None
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width, height, width_height_3, all_frames, w_2, h_2 = None, None, None, 0, None, None
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frame_list, frame_index_list = [], []
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ex_status = True
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full_timeout = None
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try:
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# 初始化日志
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init_log(base_dir, env)
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logger.info("开启离线视频拉流进程, requestId:{}", request_id)
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# 开启图片上传线程
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image_thread = self.start_File_upload(fb_queue, context, msg, image_queue, analyse_type)
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# 初始化拉流工具类
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cv2_init_num = 0
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concurrent_frame = 1
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start_time = time()
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while True:
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# 检测任务执行是否超时、图片上传线程是否正常
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self.check(start_time, service_timeout, request_id, image_thread)
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command_msg = get_no_block_queue(command_queue)
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if command_msg is not None:
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if 'stop' == command_msg.get("command"):
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logger.info("开始停止离线拉流进程, requestId:{}", request_id)
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break
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if 'stop_ex' == command_msg.get("command"):
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logger.info("开始停止离线拉流进程, requestId:{}", request_id)
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ex_status = False
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break
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# 检测视频信息是否存在或拉流对象是否存在
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if check_video_stream(width, height):
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if len(frame_list) > 0:
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put_queue(pull_queue, (4, (frame_list, frame_index_list, all_frames)), timeout=1)
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frame_list, frame_index_list = [], []
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logger.info("开始重新获取视频信息: {}次, requestId: {}", cv2_init_num, request_id)
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if cv2_init_num > 3:
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clear_pull_p(pull_p, request_id)
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logger.info("离线拉流重试失败, 重试次数: {}, requestId: {}", cv2_init_num, request_id)
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raise ServiceException(ExceptionType.OR_VIDEO_ADDRESS_EXCEPTION.value[0],
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ExceptionType.OR_VIDEO_ADDRESS_EXCEPTION.value[1])
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cv2_init_num += 1
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sleep(1)
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width, height, width_height_3, all_frames, w_2, h_2 = build_video_info(pull_url, request_id)
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continue
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if pull_queue.full():
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logger.info("pull拉流队列满了:{}, requestId: {}", os.getppid(), request_id)
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if full_timeout is None:
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full_timeout = time()
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if time() - full_timeout > 300:
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logger.error("拉流队列阻塞超时, 请检查父进程是否正常！requestId: {}", request_id)
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raise ServiceException(ExceptionType.SERVICE_INNER_EXCEPTION.value[0],
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ExceptionType.SERVICE_INNER_EXCEPTION.value[1])
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if psutil.Process(getpid()).ppid() == 1:
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clear_pull_p(pull_p, request_id)
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ex_status = False
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for q in [command_queue, pull_queue, image_queue]:
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clear_queue(q)
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if image_thread and image_thread.is_alive():
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put_queue(image_queue, (2, "stop"), timeout=1)
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image_thread.join(120)
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logger.info("检测到父进程异常停止, 请检测服务器资源是否负载过高, requestId: {}", request_id)
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put_queue(self._fb_queue, message_feedback(request_id,
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AnalysisStatus.FAILED.value,
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self._analyse_type,
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ExceptionType.NO_RESOURCES.value[0],
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ExceptionType.NO_RESOURCES.value[1]))
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break
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continue
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full_timeout = None
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frame, pull_p, width, height = pull_read_video_stream(pull_p, pull_url, width, height, width_height_3,
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w_2, h_2, request_id)
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if frame is None:
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logger.info("总帧数: {}, 当前帧数: {}, requestId: {}", all_frames, concurrent_frame, request_id)
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clear_pull_p(pull_p, request_id)
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if len(frame_list) > 0:
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put_queue(pull_queue, (4, (frame_list, frame_index_list, all_frames)), timeout=2, is_ex=False)
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frame_list, frame_index_list = [], []
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# 允许100帧的误差
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if concurrent_frame < all_frames - 100:
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logger.info("离线拉流异常结束：requestId: {}", request_id)
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raise ServiceException(ExceptionType.READSTREAM_TIMEOUT_EXCEPTION.value[0],
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ExceptionType.READSTREAM_TIMEOUT_EXCEPTION.value[1])
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logger.info("离线拉流线程结束, requestId: {}", request_id)
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break
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frame_list.append(frame)
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frame_index_list.append(concurrent_frame)
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if len(frame_list) >= frame_num:
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put_queue(pull_queue, (4, (frame_list, frame_index_list, all_frames)), timeout=1, is_ex=True)
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frame_list, frame_index_list = [], []
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concurrent_frame += 1
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del frame
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except ServiceException as s:
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logger.error("实时拉流异常: {}, 队列大小:{}, requestId:{}", s.msg, pull_queue.qsize(), request_id)
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ex = s.code, s.msg
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except Exception:
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logger.error("实时拉流异常: {}, requestId:{}", format_exc(), request_id)
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ex = ExceptionType.SERVICE_INNER_EXCEPTION.value[0], ExceptionType.SERVICE_INNER_EXCEPTION.value[1]
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finally:
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clear_pull_p(pull_p, request_id)
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del frame_list, frame_index_list
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if ex_status:
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if ex:
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code, msg = ex
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r = put_queue_result(pull_queue, (1, code, msg), timeout=10)
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else:
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r = put_queue_result(pull_queue, (2,), timeout=10)
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if r:
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c_time = time()
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while time() - c_time < 180:
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command_msg = get_no_block_queue(command_queue)
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if command_msg is not None:
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if 'stop' == command_msg.get("command"):
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logger.info("开始停止离线拉流进程, requestId:{}", request_id)
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if image_thread and image_thread.is_alive():
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put_queue(image_queue, (2, "stop"), timeout=1)
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logger.info("停止图片上传线程, requestId:{}", request_id)
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image_thread.join(120)
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logger.info("停止图片上传线程结束, requestId:{}", request_id)
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break
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for q in [command_queue, pull_queue, image_queue]:
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clear_queue(q)
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if image_thread and image_thread.is_alive():
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put_queue(image_queue, (2, "stop"), timeout=1)
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logger.info("停止图片上传线程, requestId:{}", request_id)
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image_thread.join(120)
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logger.info("停止图片上传线程结束, requestId:{}", request_id)
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logger.info("离线拉流线程结束, 图片队列: {}, 拉流队列: {}, 图片进程的状态: {} requestId: {}",
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image_queue.qsize(), pull_queue.qsize(), image_thread.is_alive(), request_id)
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