107 lines
3.8 KiB
C#
107 lines
3.8 KiB
C#
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using System;
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using System.Collections.Generic;
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using System.Collections.ObjectModel;
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namespace SHH.CameraSdk;
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/// <summary>
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/// 通道级能力描述（镜头身份证）
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/// 核心职责：描述单个物理镜头或 NVR 通道的技术参数、功能支持特性与分辨率能力
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/// 协作场景：作为 <see cref="DeviceMetadata"/> 的子级数据，支撑设备能力自发现、配置合法性校验
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/// </summary>
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public class ChannelMetadata
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{
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#region --- 1. 通道基础标识 (Basic Identification) ---
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/// <summary>
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/// 物理通道索引（从 1 开始计数，与 DVR/NVR 物理通道号一一对应）
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/// 业务用途：作为通道唯一标识，用于码流订阅、参数配置
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/// </summary>
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public int ChannelIndex { get; init; }
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/// <summary>
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/// 通道名称（用于 OSD 叠加显示、UI 界面展示）
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/// 示例："北大门主入口" "地下车库A区"
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/// </summary>
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public string Name { get; init; } = string.Empty;
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#endregion
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#region --- 2. 功能支持特性 (Capability Support) ---
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/// <summary>
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/// 是否支持云台控制（PTZ：Pan/Tilt/Zoom 平移/俯仰/变焦）
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/// 业务影响：决定 UI 是否显示云台控制按钮，是否允许下发 PTZ 指令
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/// </summary>
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public bool SupportPtz { get; init; }
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/// <summary>
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/// 是否支持音频输入（是否接入拾音器）
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/// 业务影响：决定是否开启音频解码、音频流推送功能
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/// </summary>
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public bool SupportAudioIn { get; init; }
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/// <summary>
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/// 是否支持 AI 智能分析（人脸检测、车牌识别、行为分析等）
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/// 业务影响：决定是否加载 AI 算法插件，是否接收智能事件上报
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/// </summary>
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public bool SupportAiAnalysis { get; init; }
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#endregion
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#region --- 3. 分辨率能力 (Resolution Capabilities) ---
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/// <summary>
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/// 通道支持的分辨率列表（只读集合，防止外部篡改）
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/// 格式示例：["1920x1080", "1280x720", "3840x2160"]
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/// 业务用途：前端清晰度选择下拉列表、动态配置分辨率合法性校验
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/// </summary>
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public ReadOnlyCollection<string> SupportedResolutions { get; init; } = new ReadOnlyCollection<string>(new List<string>());
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#endregion
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#region --- 4. 构造函数 (Constructors) ---
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/// <summary>
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/// 默认构造函数（用于序列化、初始状态初始化）
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/// </summary>
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public ChannelMetadata() { }
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/// <summary>
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/// 简化构造函数（用于快速创建通道标识、克隆或比对场景）
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/// </summary>
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/// <param name="index">物理通道索引</param>
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/// <param name="name">通道名称</param>
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public ChannelMetadata(int index, string name)
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{
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ChannelIndex = index;
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Name = name;
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}
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/// <summary>
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/// 完整构造函数（用于创建包含全量能力的通道元数据）
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/// </summary>
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/// <param name="index">物理通道索引</param>
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/// <param name="name">通道名称</param>
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/// <param name="supportPtz">是否支持云台</param>
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/// <param name="supportAudio">是否支持音频输入</param>
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/// <param name="supportAi">是否支持 AI 分析</param>
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/// <param name="resolutions">支持的分辨率列表</param>
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public ChannelMetadata(
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int index,
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string name,
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bool supportPtz = false,
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bool supportAudio = false,
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bool supportAi = false,
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IEnumerable<string>? resolutions = null)
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{
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ChannelIndex = index;
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Name = name;
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SupportPtz = supportPtz;
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SupportAudioIn = supportAudio;
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SupportAiAnalysis = supportAi;
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SupportedResolutions = new ReadOnlyCollection<string>(resolutions?.ToList() ?? new List<string>());
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}
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#endregion
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}
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