yuming
45d17ee576
通过 ADB 自动化模拟器中的萤石 App，每天把 SD 卡里昨天的录像批量 下载到本地。云 API 方案 (sync.py/probe.py) 是备选，需先在萤石开放 平台关闭设备码流加密。 Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
156 lines
4.6 KiB
Python
156 lines
4.6 KiB
Python
#!/usr/bin/env python3
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"""
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萤石CB60 SD卡录像每日同步脚本
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每天凌晨运行，下载前24小时内的所有SD卡录像到本地目录。
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"""
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import json, os, re, subprocess, logging
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from datetime import datetime
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from pathlib import Path
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import requests
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from config import *
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# ====== 路径配置 ======
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OUTPUT_DIR = Path(OUTPUT_DIR)
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TOKEN_CACHE = Path(TOKEN_CACHE)
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LOG_FILE = Path("./sync.log")
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# NAS上部署时改为 "ffmpeg"（Docker镜像内）
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FFMPEG = "/opt/homebrew/bin/ffmpeg"
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BASE = "https://open.ys7.com/api/lapp"
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# ====== 日志 ======
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logging.basicConfig(
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level=logging.INFO,
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format="%(asctime)s %(message)s",
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handlers=[
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logging.FileHandler(LOG_FILE, encoding="utf-8"),
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logging.StreamHandler()
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]
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)
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log = logging.getLogger(__name__)
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# ====== Token 管理 ======
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def get_token():
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if TOKEN_CACHE.exists():
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cache = json.loads(TOKEN_CACHE.read_text())
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if datetime.now().timestamp() < cache["expire_ts"] - 3600:
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log.info(f"使用缓存 Token，有效期至 {cache['expire_str']}")
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return cache["token"]
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r = requests.post(f"{BASE}/token/get",
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data={"appKey": APP_KEY, "appSecret": APP_SECRET})
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d = r.json()
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if d["code"] != "200":
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raise Exception(f"Token 获取失败: {d}")
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token = d["data"]["accessToken"]
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expire_ts = d["data"]["expireTime"] / 1000
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expire_str = datetime.fromtimestamp(expire_ts).strftime("%Y-%m-%d %H:%M:%S")
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TOKEN_CACHE.write_text(json.dumps({
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"token": token, "expire_ts": expire_ts, "expire_str": expire_str
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}))
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log.info(f"Token 已刷新，有效期至 {expire_str}")
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return token
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# ====== 查询录像列表 ======
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def get_recording_list(token, start_ms, end_ms):
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r = requests.post(f"{BASE}/video/by/time", data={
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"accessToken": token,
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"deviceSerial": DEVICE_SERIAL,
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"channelNo": CHANNEL_NO,
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"startTime": start_ms,
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"endTime": end_ms,
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})
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d = r.json()
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if d["code"] != "200":
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log.warning(f"录像列表查询失败: {d}")
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return []
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return d.get("data", [])
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# ====== 获取 FLV 回放流地址 ======
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def get_flv_url(token):
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"""
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type=2：SD卡回放流，覆盖过去24小时内所有录像片段（服务器拼接成一个 FLV）
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protocol=4：HTTP FLV，ffmpeg 可直接下载
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"""
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r = requests.post(f"{BASE}/v2/live/address/get", data={
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"accessToken": token,
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"deviceSerial": DEVICE_SERIAL,
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"channelNo": CHANNEL_NO,
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"quality": 1,
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"type": 2,
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"protocol": 4,
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})
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d = r.json()
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if d["code"] != "200":
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raise Exception(f"FLV 地址获取失败: {d}")
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return d["data"]["url"], d["data"]["expireTime"]
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# ====== ffmpeg 下载 ======
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def download_flv(url, output_path):
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output_path.parent.mkdir(parents=True, exist_ok=True)
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cmd = [
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FFMPEG,
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"-i", url,
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"-c", "copy",
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"-y", str(output_path),
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"-v", "warning",
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]
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log.info(f"开始下载 → {output_path}")
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result = subprocess.run(cmd, capture_output=True, text=True)
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if not output_path.exists() or output_path.stat().st_size < 1024:
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log.error(f"下载失败或文件过小\n{result.stderr[:400]}")
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return False
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size_kb = output_path.stat().st_size / 1024
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log.info(f"下载完成，大小 {size_kb:.0f} KB")
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return True
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# ====== 主流程 ======
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def sync():
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log.info("===== 开始同步 =====")
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token = get_token()
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# 1. 查过去24小时是否有录像
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now_ms = int(datetime.now().timestamp() * 1000)
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start_ms = now_ms - 86_400_000
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recordings = get_recording_list(token, start_ms, now_ms)
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if not recordings:
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log.info("过去24小时无SD卡录像，退出")
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return
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log.info(f"发现 {len(recordings)} 段录像")
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# 2. 获取 FLV 流（服务器把24小时内所有录像拼接好）
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url, expire_time = get_flv_url(token)
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log.info(f"FLV URL 有效期至 {expire_time}")
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# 3. 文件命名：按 begin 时间戳
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begin_match = re.search(r'begin=(\d{14})', url)
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begin_str = begin_match.group(1) if begin_match else datetime.now().strftime("%Y%m%d%H%M%S")
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date_str = begin_str[:8] # e.g. 20260613
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output_path = OUTPUT_DIR / DEVICE_SERIAL / date_str / f"{begin_str}.mp4"
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# 4. 已下载则跳过
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if output_path.exists() and output_path.stat().st_size > 1024:
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log.info(f"已存在 {output_path.name}，跳过")
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return
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# 5. 下载
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download_flv(url, output_path)
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log.info("===== 同步完成 =====")
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if __name__ == "__main__":
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sync()
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