0c05463617
- 语音：序数解析（第一个/第二个等）、解析失败计数与 API detail.retry_remaining； 百度 ASR 固定 dev_pid 为普通话；SurgeryPipelineError 支持 extra 并入 HTTP detail。 - Demo：demo 路由与假 RTSP、客户端 index 与 README；BackendResolver 与配置调整。 - 可观测：消耗 TSV 日志、语音文件日志、终端 Markdown 辅助；相关测试与依赖更新。 - 注意：.env 仍被 gitignore，本地密钥不会进入本提交。 Made-with: Cursor
105 lines
3.9 KiB
Python
105 lines
3.9 KiB
Python
from __future__ import annotations
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import json
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from typing import Any
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from loguru import logger
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from app.config import Settings
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from app.services.video.hikvision_runtime import HikvisionRuntime
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from app.services.video.types import VideoBackendKind
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class BackendResolver:
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"""Resolve per-camera backend (RTSP vs Hikvision SDK) and RTSP URL."""
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def __init__(
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self,
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settings: Settings,
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*,
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hikvision_runtime: HikvisionRuntime | None,
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) -> None:
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self._s = settings
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self._hik = hikvision_runtime
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def _parse_json_object(self, raw: str) -> dict[str, Any]:
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raw = (raw or "").strip()
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if not raw:
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return {}
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try:
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data = json.loads(raw)
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except json.JSONDecodeError as exc:
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raise ValueError(f"Invalid JSON mapping: {exc}") from exc
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if not isinstance(data, dict):
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raise ValueError("JSON mapping must be an object")
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return {str(k): v for k, v in data.items()}
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def backend_for_camera(self, camera_id: str) -> VideoBackendKind:
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overrides = self._parse_json_object(self._s.video_camera_backend_overrides_json)
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if camera_id in overrides:
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v = str(overrides[camera_id]).lower()
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if v in ("rtsp", "hikvision_sdk", "sdk"):
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return (
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VideoBackendKind.HIKVISION_SDK
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if v in ("hikvision_sdk", "sdk")
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else VideoBackendKind.RTSP
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)
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default = self._s.video_default_backend.strip().lower()
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if default in ("auto", ""):
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if self._hik is not None and self._s.hikvision_sdk_enabled:
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return VideoBackendKind.HIKVISION_SDK
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return VideoBackendKind.RTSP
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if default in ("hikvision_sdk", "sdk"):
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return VideoBackendKind.HIKVISION_SDK
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return VideoBackendKind.RTSP
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def rtsp_url_for_camera(self, camera_id: str) -> str:
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# Re-read on each use so VIDEO_RTSP_URLS_JSON_FILE can be hot-updated (e.g. dev orchestrator).
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m = self._s.video_rtsp_url_map()
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if camera_id in m:
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return m[camera_id]
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tpl = (self._s.video_rtsp_url_template or "").strip()
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if tpl:
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try:
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return tpl.format(camera_id=camera_id)
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except KeyError as exc:
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raise ValueError(
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f"video_rtsp_url_template missing placeholder: {exc}"
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) from exc
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raise ValueError(
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f"No RTSP URL for camera_id={camera_id!r}: set VIDEO_RTSP_URLS_JSON_FILE, "
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f"VIDEO_RTSP_URLS_JSON, or VIDEO_RTSP_URL_TEMPLATE"
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)
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def rtsp_url_after_hikvision_login(self, camera_id: str) -> str:
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"""RTSP URL used after SDK login (often same as device preview URL)."""
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urls = self._parse_json_object(self._s.hikvision_camera_rtsp_urls_json)
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if camera_id in urls:
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return str(urls[camera_id])
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tpl = (self._s.hikvision_preview_rtsp_template or "").strip()
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if not tpl:
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logger.warning(
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"Hikvision backend without HIKVISION_PREVIEW_RTSP_TEMPLATE / "
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"HIKVISION_CAMERA_RTSP_URLS_JSON — falling back to generic RTSP map"
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)
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return self.rtsp_url_for_camera(camera_id)
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return self._format_hikvision_rtsp(tpl, camera_id)
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def _format_hikvision_rtsp(self, template: str, camera_id: str) -> str:
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ip = self._s.hikvision_device_ip.strip()
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user = self._s.hikvision_user.strip()
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password = self._s.hikvision_password.strip()
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channel = self._s.hikvision_channel
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try:
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return template.format(
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camera_id=camera_id,
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ip=ip,
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user=user,
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password=password,
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channel=channel,
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)
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except KeyError as exc:
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raise ValueError(
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f"hikvision_preview_rtsp_template missing key: {exc}"
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) from exc
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