新通讯图像协议对接成功

SHH.CameraService/GrpcImpls/ImageProcs/GrpcSenderWorker.cs

@@ -0,0 +1,102 @@
+using Google.Protobuf;
+using Grpc.Net.Client;
+using Microsoft.Extensions.Hosting;
+using Microsoft.Extensions.Logging;
+using SHH.Contracts.Grpc;
+
+namespace SHH.CameraService;
+
+/// <summary>
+/// gRPC 视频流发送工作者
+/// 职责：监听特定的 StreamTarget 队列，建立 gRPC 客户端流并持续推送图片
+/// </summary>
+public class GrpcSenderWorker : BackgroundService
+{
+    private readonly StreamTarget _target;
+    private readonly ILogger<GrpcSenderWorker> _logger;
+    private readonly string _grpcUrl;
+
+    public GrpcSenderWorker(StreamTarget target, ILogger<GrpcSenderWorker> logger)
+    {
+        _target = target;
+        _logger = logger;
+
+        // 自动适配地址：将配置的 tcp://localhost:9001 转换为 http://localhost:9001
+        // 并且严格使用你验证成功的 localhost
+        _grpcUrl = _target.Config.Endpoint.Replace("tcp://", "http://");
+    }
+
+    protected override async Task ExecuteAsync(CancellationToken stoppingToken)
+    {
+        _logger.LogInformation($"[gRPC Worker] 启动。目标: {_target.Config.Name}, 地址: {_grpcUrl}");
+
+        while (!stoppingToken.IsCancellationRequested)
+        {
+            try
+            {
+                // 1. 建立通道
+                using var channel = GrpcChannel.ForAddress(_grpcUrl);
+                var client = new GatewayProvider.GatewayProviderClient(channel);
+
+                // 2. 开启客户端流 (UploadVideoStream 是在 proto 中定义的)
+                using var call = client.UploadVideoStream(cancellationToken: stoppingToken);
+
+                _logger.LogInformation($"[gRPC Worker] 已开启视频推送流: {_target.Config.Name}");
+
+                // 3. 核心搬运循环：从内存队列 (Channel) 读取数据
+                await foreach (var payload in _target.Channel.Reader.ReadAllAsync(stoppingToken))
+                {
+                    // 【畅通保障】检查数据时效性：丢弃超过 1 秒的积压帧
+                    var delay = DateTimeOffset.UtcNow.ToUnixTimeMilliseconds() - payload.CaptureTimestamp;
+                    if (delay > 1000)
+                    {
+                        continue;
+                    }
+
+                    // 将业务 DTO 转换为 gRPC 原生 Request
+                    var request = new VideoFrameRequest
+                    {
+                        CameraId = payload.CameraId ?? "0",
+                        CaptureTimestamp = payload.CaptureTimestamp,
+                        OriginalWidth = payload.OriginalWidth,
+                        OriginalHeight = payload.OriginalHeight,
+                        HasOriginalImage = payload.HasOriginalImage,
+                        HasTargetImage = payload.HasTargetImage,
+
+                        // ★ 核心：将 byte[] 转换为 gRPC 的 ByteString (高性能)
+                        OriginalImageBytes = payload.OriginalImageBytes != null
+                            ? ByteString.CopyFrom(payload.OriginalImageBytes)
+                            : ByteString.Empty,
+
+                        TargetImageBytes = payload.TargetImageBytes != null
+                            ? ByteString.CopyFrom(payload.TargetImageBytes)
+                            : ByteString.Empty
+                    };
+
+                    request.SubscriberIds.AddRange(payload.SubscriberIds);
+
+                    // 处理诊断信息 map<string, string>
+                    if (payload.Diagnostics != null)
+                    {
+                        foreach (var kv in payload.Diagnostics)
+                        {
+                            request.Diagnostics.Add(kv.Key, kv.Value?.ToString() ?? "");
+                        }
+                    }
+
+                    // 4. 发送至 AiVideo
+                    await call.RequestStream.WriteAsync(request);
+                }
+
+                // 正常结束流
+                await call.RequestStream.CompleteAsync();
+            }
+            catch (OperationCanceledException) { break; }
+            catch (Exception ex)
+            {
+                _logger.LogError($"[gRPC Worker] 推送链路异常，5秒后重连: {ex.Message}");
+                await Task.Delay(5000, stoppingToken);
+            }
+        }
+    }
+}