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新增hls下载进程，待完善

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This commit is contained in:
zqc
2026-02-28 12:12:43 +08:00
parent 00456e512a
commit 1cbe95c91b
3 changed files with 483 additions and 192 deletions
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3
config.yaml
View File

@@ -35,6 +35,9 @@ database:
debug_mode: true
alert_push_url: "http://123.57.151.210:10000/picenter/websocket/test/process"
hls_root_path: "D:/ProjectDoc/Police/data/hls"
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
service_groups:
- name: "kadian_group" # 服务组名称

433
hls_downloader.py
View File

@@ -1,196 +1,283 @@
import requests
import m3u8
import time
# hls_downloader.py
# HLS分片TS下载管理进程
# 功能：管理ffmpeg下载HLS直播流，支持异常重试、定时轮换、文件清理
import os
from urllib.parse import urljoin
from datetime import datetime
import sys
import json
import argparse
import signal
import subprocess
import shutil
import time
from datetime import datetime, timedelta
from typing import Optional
from utils.logger import get_logger
logger = get_logger(__name__)
ffmpeg_process: Optional[subprocess.Popen] = None
running = True
should_restart = False # 标记是否需要重新启动ffmpeg（凌晨3点触发）
class RawHLSDownloader:
"""直接下载HLS分片，保留原始时间戳"""
def parse_args():
"""解析命令行参数"""
parser = argparse.ArgumentParser(description="HLS Downloader Manager")
parser.add_argument("--index-code", required=True, help="Camera index code")
parser.add_argument("--camera-name", required=True, help="Camera name")
parser.add_argument("--camera-id", required=True, type=int, help="Camera ID")
parser.add_argument("--hls-root-path", required=True, help="HLS root path")
parser.add_argument("--rotate-hour", required=True, type=int, help="Daily rotate hour (0-23)")
parser.add_argument("--retention-days", required=True, type=int, help="File retention days")
parser.add_argument("--retry-interval", required=True, type=int, help="Retry interval seconds")
return parser.parse_args()
def __init__(self, m3u8_url, output_dir="segments"):
self.m3u8_url = m3u8_url
self.output_dir = output_dir
self.session = requests.Session()
self.session.headers.update({
'User-Agent': 'Mozilla/5.0'
})
os.makedirs(output_dir, exist_ok=True)
# def init_logger(index_code: str, pid: int):
# """初始化日志记录器"""
# global logger
# log_dir = "log"
# if not os.path.exists(log_dir):
# os.makedirs(log_dir)
# log_file = os.path.join(log_dir, f"hls_downloader_{index_code}_{pid}.log")
#
# # 创建独立的logger实例
# from logging import Logger, FileHandler, Formatter, INFO
# logger = Logger(f"hls_downloader_{index_code}")
# handler = FileHandler(log_file, encoding='utf-8')
# handler.setFormatter(Formatter('%(asctime)s - %(levelname)s - %(message)s'))
# logger.addHandler(handler)
# logger.setLevel(INFO)
#
# logger.info(f"Logger initialized, log file: {log_file}")
def download_playlist(self):
"""下载并解析m3u8播放列表"""
response = self.session.get(self.m3u8_url)
response.raise_for_status()
# 解析播放列表
playlist = m3u8.loads(response.text, uri=self.m3u8_url)
# 如果是主播放列表（多码率），选择第一个
if playlist.is_variant:
print(f"发现多码率流，选择: {playlist.playlists[0].stream_info}")
playlist_url = playlist.playlists[0].absolute_uri
response = self.session.get(playlist_url)
response.raise_for_status()
playlist = m3u8.loads(response.text, uri=playlist_url)
return playlist
def download_segment_raw(self, segment_url, segment_filename):
"""直接下载TS分片，不进行任何处理"""
print(f"下载: {segment_url}")
response = self.session.get(segment_url, stream=True)
response.raise_for_status()
# 直接保存原始字节
filepath = os.path.join(self.output_dir, segment_filename)
with open(filepath, 'wb') as f:
for chunk in response.iter_content(chunk_size=8192):
f.write(chunk)
# 获取下载时间戳
download_time = datetime.now()
# 获取文件大小
file_size = os.path.getsize(filepath)
print(f" 保存到: {segment_filename} ({file_size} 字节)")
return {
'filename': segment_filename,
'url': segment_url,
'size': file_size,
'download_time': download_time,
'local_path': filepath
}
def analyze_raw_ts(self, ts_file):
"""分析原始TS文件的时间戳（不通过FFmpeg）"""
import struct
filepath = os.path.join(self.output_dir, ts_file)
with open(filepath, 'rb') as f:
# 读取TS包（每个188字节）
packet_size = 188
packets = []
while True:
packet = f.read(packet_size)
if len(packet) < packet_size:
break
# 解析TS包头
sync_byte = packet[0]
if sync_byte != 0x47: # TS同步字节
print(f"警告: 无效的TS包同步字节: {sync_byte:02x}")
continue
# 解析PID
pid = ((packet[1] & 0x1F) << 8) | packet[2]
# 检查适配字段是否存在
adaptation_field_control = (packet[3] >> 4) & 0x03
# 如果有适配字段，可能包含PCR
if adaptation_field_control in [2, 3]:
adaptation_field_length = packet[4]
if adaptation_field_length > 0:
pcr_flag = (packet[5] >> 4) & 0x01
if pcr_flag and adaptation_field_length >= 6:
# 提取PCR
pcr_bytes = packet[6:12]
pcr_base = (
(pcr_bytes[0] << 25) |
(pcr_bytes[1] << 17) |
(pcr_bytes[2] << 9) |
(pcr_bytes[3] << 1) |
(pcr_bytes[4] >> 7)
)
pcr_extension = ((pcr_bytes[4] & 0x01) << 8) | pcr_bytes[5]
pcr_value = pcr_base * 300 + pcr_extension
pcr_ms = pcr_value / 27000.0 # 转换为毫秒
packets.append({
'pid': pid,
'has_pcr': True,
'pcr_ms': pcr_ms
})
continue
packets.append({
'pid': pid,
'has_pcr': False
})
# 统计PCR信息
pcr_packets = [p for p in packets if p['has_pcr']]
return {
'total_packets': len(packets),
'pcr_packets': len(pcr_packets),
'pcr_values': [p['pcr_ms'] for p in pcr_packets] if pcr_packets else [],
'file_size': os.path.getsize(filepath)
}
def monitor_and_download(self, max_segments=None):
"""监控并下载新的分片"""
downloaded_segments = set()
segment_counter = 0
while True:
def get_hls_url(index_code: str) -> Optional[str]:
"""获取HLS播放地址"""
try:
# 获取最新播放列表
playlist = self.download_playlist()
import test_cam
result = test_cam.get_camera_hls_url(index_code)
if result.get("code") == "0" and result.get("data", {}).get("url"):
return result["data"]["url"]
else:
logger.error(f"Failed to get HLS URL: {result}")
return None
except Exception as e:
logger.error(f"Exception while getting HLS URL: {e}")
return None
# 检查播放列表中的分片
for segment in playlist.segments:
segment_url = segment.absolute_uri
segment_filename = os.path.basename(segment_url)
# 如果还没下载过
if segment_filename not in downloaded_segments:
# 下载原始分片
result = self.download_segment_raw(segment_url, segment_filename)
def create_session_folder(hls_root_path: str, index_code: str) -> str:
"""创建下载会话文件夹"""
session_name = datetime.now().strftime("%Y%m%d_%H%M%S")
index_folder = os.path.join(hls_root_path, index_code)
session_folder = os.path.join(index_folder, session_name)
# 分析原始TS文件
analysis = self.analyze_raw_ts(segment_filename)
os.makedirs(session_folder, exist_ok=True)
logger.info(f"Created session folder: {session_folder}")
print(f" 分析结果: {analysis['total_packets']}包, "
f"PCR包: {analysis['pcr_packets']}")
return session_folder
if analysis['pcr_values']:
print(f" PCR范围: {min(analysis['pcr_values']):.1f}ms - "
f"{max(analysis['pcr_values']):.1f}ms")
downloaded_segments.add(segment_filename)
segment_counter += 1
def start_ffmpeg(m3u8_url: str, session_folder: str) -> Optional[subprocess.Popen]:
"""启动ffmpeg下载进程"""
global ffmpeg_process
# 检查是否达到最大数量
if max_segments and segment_counter >= max_segments:
print(f"达到最大分片数: {max_segments}")
try:
segment_pattern = os.path.join(session_folder, "segment_%09d.ts")
playlist_path = os.path.join(session_folder, "playlist.m3u8")
cmd = [
"ffmpeg",
"-i", m3u8_url,
"-c", "copy",
"-hls_segment_filename", segment_pattern,
playlist_path
]
logger.info(f"Starting ffmpeg: {' '.join(cmd)}")
# 启动ffmpeg，丢弃输出
ffmpeg_process = subprocess.Popen(
cmd,
stdout=subprocess.DEVNULL,
stderr=subprocess.DEVNULL
)
logger.info(f"FFmpeg started with PID: {ffmpeg_process.pid}")
return ffmpeg_process
except Exception as e:
logger.error(f"Failed to start ffmpeg: {e}")
return None
def stop_ffmpeg():
"""停止ffmpeg进程"""
global ffmpeg_process
if ffmpeg_process and ffmpeg_process.poll() is None:
logger.info(f"Stopping ffmpeg process (PID: {ffmpeg_process.pid})")
try:
ffmpeg_process.terminate()
# 等待进程结束
try:
ffmpeg_process.wait(timeout=5)
except subprocess.TimeoutExpired:
logger.warning("FFmpeg did not terminate gracefully, killing...")
ffmpeg_process.kill()
ffmpeg_process.wait()
logger.info("FFmpeg process stopped")
except Exception as e:
logger.error(f"Error stopping ffmpeg: {e}")
ffmpeg_process = None
def cleanup_old_folders(hls_root_path: str, index_code: str, retention_days: int):
"""清理过期的下载文件夹"""
try:
index_folder = os.path.join(hls_root_path, index_code)
if not os.path.exists(index_folder):
return
# 等待下一轮
sleep_time = playlist.target_duration or 2
print(f"等待 {sleep_time} 秒...")
time.sleep(sleep_time)
cutoff_date = datetime.now() - timedelta(days=retention_days)
cutoff_str = cutoff_date.strftime("%Y%m%d")
except KeyboardInterrupt:
print("用户中断")
break
deleted_count = 0
for folder_name in os.listdir(index_folder):
folder_path = os.path.join(index_folder, folder_name)
if os.path.isdir(folder_path):
# 从文件夹名称解析日期 (yyyyMMdd_HHmmss)
try:
date_str = folder_name.split("_")[0]
if date_str < cutoff_str:
shutil.rmtree(folder_path)
logger.info(f"Deleted old folder: {folder_path}")
deleted_count += 1
except Exception as e:
print(f"错误: {e}")
time.sleep(5)
logger.warning(f"Failed to parse folder date {folder_name}: {e}")
if deleted_count > 0:
logger.info(f"Cleaned up {deleted_count} old folders")
except Exception as e:
logger.error(f"Error cleaning up old folders: {e}")
# 使用示例
downloader = RawHLSDownloader(
m3u8_url="http://192.168.110.139:8080/stream.m3u8",
output_dir="raw_segments"
def get_next_rotate_time(rotate_hour: int) -> datetime:
"""计算下次轮换时间"""
now = datetime.now()
rotate_time = now.replace(hour=rotate_hour, minute=0, second=0, microsecond=0)
if now >= rotate_time:
# 已经过了今天的轮换时间，计算明天的
rotate_time += timedelta(days=1)
return rotate_time
def download_cycle(hls_root_path: str, index_code: str, retry_interval: int) -> bool:
"""
执行一次下载流程
返回：True表示成功启动ffmpeg，False表示失败
"""
# 1. 获取HLS地址
m3u8_url = get_hls_url(index_code)
if not m3u8_url:
logger.error("Failed to get HLS URL, will retry later")
return False
# 2. 创建会话文件夹
try:
session_folder = create_session_folder(hls_root_path, index_code)
except Exception as e:
logger.error(f"Failed to create session folder: {e}")
return False
# 3. 启动ffmpeg
proc = start_ffmpeg(m3u8_url, session_folder)
if not proc:
logger.error("Failed to start ffmpeg")
return False
return True
def signal_handler(signum, frame):
"""信号处理器"""
global running
logger.info(f"Received signal {signum}, shutting down...")
running = False
def main():
global running, should_restart, ffmpeg_process
args = parse_args()
# # 初始化日志
# init_logger(args.index_code, os.getpid())
# 注册信号处理器
signal.signal(signal.SIGTERM, signal_handler)
signal.signal(signal.SIGINT, signal_handler)
logger.info(f"HLS Downloader starting for camera: {args.camera_name} (index: {args.index_code})")
logger.info(f"Config: hls_root={args.hls_root_path}, rotate_hour={args.rotate_hour}, "
f"retention_days={args.retention_days}, retry_interval={args.retry_interval}")
# 计算下次轮换时间
next_rotate_time = get_next_rotate_time(args.rotate_hour)
logger.info(f"Next rotation scheduled at: {next_rotate_time}")
# 主循环
while running:
# 如果没有运行中的ffmpeg，尝试启动
if ffmpeg_process is None or ffmpeg_process.poll() is not None:
if ffmpeg_process is not None and ffmpeg_process.poll() is not None:
logger.warning(f"FFmpeg exited unexpectedly with code: {ffmpeg_process.returncode}")
# 尝试启动下载
success = download_cycle(
args.hls_root_path,
args.index_code,
args.retry_interval
)
# 下载5个分片进行测试
downloader.monitor_and_download(max_segments=5)
if not success:
logger.info(f"Download failed, waiting {args.retry_interval} seconds before retry...")
time.sleep(args.retry_interval)
continue
# 检查是否到达轮换时间
now = datetime.now()
if now >= next_rotate_time:
logger.info("Daily rotation triggered")
# 停止当前ffmpeg
stop_ffmpeg()
# 清理旧文件
cleanup_old_folders(args.hls_root_path, args.index_code, args.retention_days)
# 计算下次轮换时间
next_rotate_time = get_next_rotate_time(args.rotate_hour)
logger.info(f"Next rotation scheduled at: {next_rotate_time}")
# 继续循环，会重新启动ffmpeg
time.sleep(1)
continue
# 短暂休眠，避免CPU占用过高
time.sleep(1)
# 退出前清理
logger.info("Shutting down HLS Downloader...")
stop_ffmpeg()
logger.info("HLS Downloader stopped")
if __name__ == "__main__":
main()

213
main_start.py
View File

@@ -11,7 +11,8 @@ import os
import signal
import argparse
import time
from typing import List, Dict
import glob
from typing import List, Dict, Optional
from common.camera_config import CameraConfig
from utils.logger import get_logger
@@ -21,6 +22,9 @@ logger = get_logger(__name__)
# PID 文件目录
PID_DIR = "pids"
# HLS下载器PID文件前缀
HLS_DOWNLOADER_PID_PREFIX = "hls_downloader_"
def load_debug_mode(config_path: str = "config.yaml") -> bool:
"""从配置文件读取调试模式"""
@@ -43,6 +47,27 @@ def load_service_groups_from_yaml(config_path: str = "config.yaml") -> List[dict
return cfg.get("service_groups", [])
def load_hls_config(config_path: str = "config.yaml") -> dict:
"""从配置文件加载HLS下载器配置"""
try:
with open(config_path, "r", encoding="utf-8") as f:
cfg = yaml.safe_load(f)
return {
"hls_root_path": cfg.get("hls_root_path", ""),
"daily_rotate_hour": cfg.get("hls_downloader_daily_rotate_hour", 3),
"retention_days": cfg.get("hls_downloader_retention_days", 3),
"retry_interval": cfg.get("hls_downloader_retry_interval_seconds", 10)
}
except Exception as e:
logger.error(f"[ERROR] Failed to load HLS config: {e}")
return {
"hls_root_path": "",
"daily_rotate_hour": 3,
"retention_days": 3,
"retry_interval": 10
}
def cameras_to_base64_json(cameras: List[dict]) -> str:
"""将摄像头配置转换为 base64 编码的 JSON 字符串"""
json_str = json.dumps(cameras, ensure_ascii=False)
@@ -54,6 +79,11 @@ def get_pid_file_path(group_name: str) -> str:
return os.path.join(PID_DIR, f"{group_name}.pid")
def get_hls_downloader_pid_file_path(index_code: str) -> str:
"""获取HLS下载器的 PID 文件路径"""
return os.path.join(PID_DIR, f"{HLS_DOWNLOADER_PID_PREFIX}{index_code}.pid")
def ensure_pid_dir():
"""确保 PID 目录存在"""
if not os.path.exists(PID_DIR):
@@ -72,6 +102,18 @@ def save_pid(pid: int, group_name: str):
logger.error(f"[ERROR] Failed to save PID file: {e}")
def save_hls_downloader_pid(pid: int, index_code: str):
"""保存HLS下载器进程ID到文件"""
ensure_pid_dir()
pid_file = get_hls_downloader_pid_file_path(index_code)
try:
with open(pid_file, "w") as f:
f.write(str(pid))
logger.info(f"[INFO] Saved HLS downloader PID {pid} to {pid_file}")
except Exception as e:
logger.error(f"[ERROR] Failed to save HLS downloader PID file: {e}")
def read_pid(group_name: str):
"""从PID文件读取进程ID"""
pid_file = get_pid_file_path(group_name)
@@ -85,6 +127,19 @@ def read_pid(group_name: str):
return None
def read_hls_downloader_pid(index_code: str):
"""从PID文件读取HLS下载器进程ID"""
pid_file = get_hls_downloader_pid_file_path(index_code)
try:
with open(pid_file, "r") as f:
return int(f.read().strip())
except FileNotFoundError:
return None
except Exception as e:
logger.error(f"[ERROR] Failed to read HLS downloader PID file: {e}")
return None
def is_process_running(pid: int):
"""检查进程是否在运行"""
try:
@@ -102,7 +157,7 @@ def get_script_path(video_source_type: str) -> str:
return "rtsp_service_ws_kadian.py"
def start_service_group(group: dict):
def start_service_group(group: dict, hls_config: dict = None):
"""启动服务子进程（后台运行）"""
cameras = group.get("cameras", [])
ws_host = group.get("ws_host", "0.0.0.0")
@@ -135,13 +190,53 @@ def start_service_group(group: dict):
return process, group_name
def start_hls_downloader(camera: dict, hls_config: dict) -> Optional[subprocess.Popen]:
"""启动HLS下载器进程"""
index_code = camera.get("index", "")
camera_name = camera.get("name", "")
camera_id = camera.get("id", 0)
if not index_code:
logger.warning(f"[WARN] Camera has no index_code, skipping HLS downloader")
return None
# 检查是否已经在运行
pid = read_hls_downloader_pid(index_code)
if pid and is_process_running(pid):
logger.warning(f"[WARN] HLS downloader for '{index_code}' is already running with PID {pid}")
return None
cmd = [
sys.executable,
"hls_downloader.py",
"--index-code", index_code,
"--camera-name", camera_name,
"--camera-id", str(camera_id),
"--hls-root-path", hls_config.get("hls_root_path", ""),
"--rotate-hour", str(hls_config.get("daily_rotate_hour", 3)),
"--retention-days", str(hls_config.get("retention_days", 3)),
"--retry-interval", str(hls_config.get("retry_interval", 10))
]
logger.info(f"[INFO] Starting HLS downloader for camera '{camera_name}' (index: {index_code})")
if DEBUG_MODE:
process = subprocess.Popen(cmd)
else:
process = subprocess.Popen(cmd, start_new_session=True)
return process
def start_service():
"""启动所有服务组"""
config_path = "config.yaml"
# 1. 读取配置
service_groups = load_service_groups_from_yaml(config_path)
hls_config = load_hls_config(config_path)
logger.info(f"[INFO] Loaded {len(service_groups)} service groups from {config_path}")
logger.info(f"[INFO] HLS config: root_path={hls_config.get('hls_root_path')}, rotate_hour={hls_config.get('daily_rotate_hour')}")
if not service_groups:
logger.error("[ERROR] No service groups found in config, exiting...")
@@ -149,18 +244,22 @@ def start_service():
# 2. 启动每个服务组
started_count = 0
downloader_count = 0
processes = [] # 记录所有子进程，用于调试模式下等待
downloader_processes = [] # 记录下载器进程
for group in service_groups:
group_name = group.get("name", "default")
video_source_type = group.get("video_source_type", "rtsp")
cameras = group.get("cameras", [])
# 检查是否已经在运行
pid = read_pid(group_name)
if pid and is_process_running(pid):
logger.warning(f"[WARN] Service group '{group_name}' is already running with PID {pid}")
continue
else:
try:
process, name = start_service_group(group)
process, name = start_service_group(group, hls_config)
time.sleep(0.5)
save_pid(process.pid, name)
logger.info(f"[INFO] Service group '{name}' started with PID {process.pid}")
@@ -169,7 +268,25 @@ def start_service():
except Exception as e:
logger.error(f"[ERROR] Failed to start service group '{group_name}': {e}")
# 如果是HLS类型，为每个摄像头启动下载进程
if video_source_type == "hls" and hls_config.get("hls_root_path"):
for camera in cameras:
index_code = camera.get("index", "")
if not index_code:
continue
try:
downloader_proc = start_hls_downloader(camera, hls_config)
if downloader_proc:
time.sleep(0.3)
save_hls_downloader_pid(downloader_proc.pid, index_code)
logger.info(f"[INFO] HLS downloader for '{index_code}' started with PID {downloader_proc.pid}")
downloader_processes.append((downloader_proc, index_code))
downloader_count += 1
except Exception as e:
logger.error(f"[ERROR] Failed to start HLS downloader for '{index_code}': {e}")
logger.info(f"[INFO] Started {started_count}/{len(service_groups)} service groups")
logger.info(f"[INFO] Started {downloader_count} HLS downloaders")
# DEBUG_MODE=True 时，主进程等待所有子进程
if DEBUG_MODE and processes:
@@ -180,6 +297,18 @@ def start_service():
return started_count > 0
def get_all_hls_downloader_pids() -> List[tuple]:
"""获取所有HLS下载器的PID文件和index_code"""
result = []
pid_pattern = os.path.join(PID_DIR, f"{HLS_DOWNLOADER_PID_PREFIX}*.pid")
for pid_file in glob.glob(pid_pattern):
# 从文件名提取index_code: hls_downloader_{index_code}.pid
filename = os.path.basename(pid_file)
index_code = filename[len(HLS_DOWNLOADER_PID_PREFIX):-4] # 去掉前缀和.pid后缀
result.append((index_code, pid_file))
return result
def status_service():
"""检查所有服务组状态"""
config_path = "config.yaml"
@@ -207,11 +336,31 @@ def status_service():
pass
logger.info(f"[INFO] {running_count}/{len(service_groups)} service groups running")
# 检查HLS下载器状态
downloader_pids = get_all_hls_downloader_pids()
downloader_running = 0
for index_code, pid_file in downloader_pids:
pid = read_hls_downloader_pid(index_code)
if pid and is_process_running(pid):
logger.info(f"[INFO] HLS downloader '{index_code}' is running with PID {pid}")
downloader_running += 1
else:
logger.info(f"[INFO] HLS downloader '{index_code}' is not running")
if pid:
try:
os.remove(pid_file)
except:
pass
if downloader_pids:
logger.info(f"[INFO] {downloader_running}/{len(downloader_pids)} HLS downloaders running")
return running_count > 0
def stop_service(force=False):
"""停止所有服务组"""
"""停止所有服务组和HLS下载器"""
config_path = "config.yaml"
service_groups = load_service_groups_from_yaml(config_path)
@@ -268,6 +417,58 @@ def stop_service(force=False):
logger.error(f"[ERROR] Failed to stop service group '{group_name}': {e}")
logger.info(f"[INFO] Stopped {stopped_count}/{len(service_groups)} service groups")
# 停止所有HLS下载器
downloader_pids = get_all_hls_downloader_pids()
downloader_stopped = 0
for index_code, pid_file in downloader_pids:
pid = read_hls_downloader_pid(index_code)
if not pid:
continue
if not is_process_running(pid):
logger.warning(f"[WARN] HLS downloader '{index_code}' PID {pid} not running, cleaning up")
try:
os.remove(pid_file)
except:
pass
downloader_stopped += 1
continue
try:
if force:
logger.info(f"[INFO] Force killing HLS downloader '{index_code}' (PID {pid})")
os.kill(pid, signal.SIGKILL)
else:
logger.info(f"[INFO] Stopping HLS downloader '{index_code}' (PID {pid})")
os.kill(pid, signal.SIGTERM)
# 等待进程结束
for i in range(10):
if not is_process_running(pid):
break
time.sleep(1)
if is_process_running(pid):
logger.warning(f"[WARN] Force killing HLS downloader '{index_code}'")
os.kill(pid, signal.SIGKILL)
time.sleep(1)
# 清理PID文件
try:
os.remove(pid_file)
except:
pass
logger.info(f"[INFO] HLS downloader '{index_code}' stopped")
downloader_stopped += 1
except Exception as e:
logger.error(f"[ERROR] Failed to stop HLS downloader '{index_code}': {e}")
if downloader_pids:
logger.info(f"[INFO] Stopped {downloader_stopped}/{len(downloader_pids)} HLS downloaders")
return True