c# - YouTube-API 上传文件没有任何错误(C#)

Question

我正在使用 Google 的 .net nuget (Google.Apis.YouTube.v3) 进行 API 调用。到目前为止一切正常(获取播放列表、视频信息等……)。但是，当我尝试上传视频时，它会在几秒钟内完成，但什么也没有发生。upload_ResponseReceived 从未被调用，upload_ProgressChanged 仅被调用两次，输出如下:1) 发送的字节数:0，状态:开始，异常:过了一会儿2) 发送的字节数:0，状态:失败，异常:System.Threading.Tasks.TaskCanceledException:任务已取消。

示例代码:

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Reflection;
using System.Text;
using System.Threading;
using System.Threading.Tasks;
using Google.Apis.Auth.OAuth2;
using Google.Apis.Services;
using Google.Apis.Upload;
using Google.Apis.Util.Store;
using Google.Apis.YouTube.v3;
using Google.Apis.YouTube.v3.Data;

namespace UploadTest
{
    class Program
    {
        static void Main(string[] args)
        {
            UserCredential credential;
            using (FileStream stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
            {
                credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
                    GoogleClientSecrets.Load(stream).Secrets,
                    new[] { YouTubeService.Scope.Youtube, YouTubeService.Scope.YoutubeUpload },
                    "user",
                    CancellationToken.None,
                    new FileDataStore("YouTube.Auth.Store")).Result;
            }
            var youtubeService = new YouTubeService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credential,
                ApplicationName = Assembly.GetExecutingAssembly().GetName().Name
            });
            var video = new Video();
            video.Snippet = new VideoSnippet();
            video.Snippet.Title = "Default Video Title";
            video.Snippet.Description = "Default Video Description";
            video.Snippet.Tags = new string[] { "tag1", "tag2" };
            video.Snippet.CategoryId = "22"; // See https://developers.google.com/youtube/v3/docs/videoCategories/list
            video.Status = new VideoStatus();
            video.Status.PrivacyStatus = "unlisted"; // or "private" or "public"
            var filePath = @"E:\video.mp4"; // Replace with path to actual movie file.
            using (var fileStream = new FileStream(filePath, FileMode.Open))
            {
                var videosInsertRequest = youtubeService.Videos.Insert(video, "snippet,status", fileStream, "video/*");
                videosInsertRequest.ProgressChanged += videosInsertRequest_ProgressChanged;
                videosInsertRequest.ResponseReceived += videosInsertRequest_ResponseReceived;
                videosInsertRequest.Upload();
            }
            Console.ReadLine();
        }

        private static void videosInsertRequest_ResponseReceived(Video obj)
        {
            Debug.WriteLine("Video has been uploaded! ID: {0}",obj.Id);
        }

        private static void videosInsertRequest_ProgressChanged(IUploadProgress obj)
        {
            Debug.WriteLine("Bytes sent: {0}, Status: {1}, Exception: {2}", obj.BytesSent, obj.Status, obj.Exception);
        }
    }
}

堆栈跟踪:

System.AggregateException was unhandled.
  HResult=-2146233088
  Message=One or more errors occurred.
  Source=mscorlib
  StackTrace:
       at System.Threading.Tasks.Task.ThrowIfExceptional(Boolean includeTaskCanceledExceptions)
       at System.Threading.Tasks.Task`1.GetResultCore(Boolean waitCompletionNotification)
       at System.Threading.Tasks.Task`1.get_Result()
       at Google.Apis.Upload.ResumableUpload`1.Upload() in c:\code\google.com\google-api-dotnet-client\default\Tools\Google.Apis.Release\bin\Debug\output\default\Src\GoogleApis\Apis\[Media]\Upload\ResumableUpload.cs:line 351
       at UploadTest.Program.<>c__DisplayClass2.<Main>b__1() in e:\Development\UploadTest\Program.cs:line 52
       at System.Threading.ThreadHelper.ThreadStart_Context(Object state)
       at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
       at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)
       at System.Threading.ThreadHelper.ThreadStart()
  InnerException: System.Threading.Tasks.TaskCanceledException
       HResult=-2146233029
       Message=A task was canceled.
       InnerException: 

知道我可能做错了什么吗？

Answer 1

好的，我认为您遇到了连接问题，您所要做的就是将 block 大小更改为更小的大小，因此您的代码应该如下所示:

const int KB = 0x400;
var minimumChunkSize = 256 * KB;

var videosInsertRequest = youtubeService.Videos.Insert(video, 
    "snippet,status", fileStream, "video/*");
videosInsertRequest.ProgressChanged +=
    videosInsertRequest_ProgressChanged;
videosInsertRequest.ResponseReceived += 
    videosInsertRequest_ResponseReceived; 
// The default chunk size is 10MB, here will use 1MB.
videosInsertRequest.ChunkSize = minimumChunkSize * 4; 
videosInsertRequest.Upload();