如何使用.Net中的YoutubeApi v3向youtube视频添加字幕

我在为上传到公司youtube频道的视频添加字幕时遇到问题。我想在.Net中使用谷歌的Youtube Api v3。我能够成功地将视频上载到频道，但在尝试发送字幕时出现以下错误： “System.Net.Http.HttpRequestException:响应状态代码不表示成功：403（禁止）。”

据我所知，我的证件并不禁止我上传字幕。我可以上传视频没有任何问题

我使用以下说明创建了刷新令牌：

这是我用来创建YouTube服务对象的代码：

    private YouTubeService GetYouTubeService()
    {
        string clientId = "clientId";
        string clientSecret = "clientSecret";
        string refreshToken = "refreshToken";
        try
        {
            ClientSecrets secrets = new ClientSecrets()
            {
                ClientId = clientId,
                ClientSecret = clientSecret
            };

            var token = new TokenResponse { RefreshToken = refreshToken };
            var credentials = new UserCredential(new GoogleAuthorizationCodeFlow(
                new GoogleAuthorizationCodeFlow.Initializer
                {
                    ClientSecrets = secrets,
                    Scopes = new[] { YouTubeService.Scope.Youtube, YouTubeService.Scope.YoutubeUpload, YouTubeService.Scope.YoutubeForceSsl }
                }),
                "user",
                token);

            var service = new YouTubeService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credentials,
                ApplicationName = "TestProject"
            });

            service.HttpClient.Timeout = TimeSpan.FromSeconds(360);
            return service;
        }
        catch (Exception ex)
        {
            Log.Error("YouTube.GetYouTubeService() => Could not get youtube service. Ex: " + ex);
            return null;
        }

    }

下面是我上传标题文件的代码：

    private void UploadCaptionFile(String videoId)
    {
        try
        {
            Caption caption = new Caption();
            caption.Snippet = new CaptionSnippet();
            caption.Snippet.Name = videoId + "_Caption";
            caption.Snippet.Language = "en";
            caption.Snippet.VideoId = videoId;
            caption.Snippet.IsDraft = false;

            WebRequest req = WebRequest.Create(_urlCaptionPath);
            using (Stream stream = req.GetResponse().GetResponseStream())
            {
                CaptionsResource.InsertMediaUpload captionInsertRequest = _youtubeService.Captions.Insert(caption, "snippet", stream, "*/*");
                captionInsertRequest.Sync = true;
                captionInsertRequest.ProgressChanged += captionInsertRequest_ProgressChanged;
                captionInsertRequest.ResponseReceived += captionInsertRequest_ResponseReceived;

                IUploadProgress result = captionInsertRequest.Upload();
            }
        }
        catch (Exception ex)
        {
            Log.Error("YouTube.UploadCaptionFile() => Unable to upload caption file. Ex: " + ex);
        }
    }

    void captionInsertRequest_ResponseReceived(Caption obj)
    {
        Log.Info("YouTube.captionInsertRequest_ResponseReceived() => Caption ID " + obj.Id + " was successfully uploaded for this clip.");
        Utility.UpdateClip(_videoClip);
    }

    void captionInsertRequest_ProgressChanged(IUploadProgress obj)
    {
        switch (obj.Status)
        {
            case UploadStatus.Uploading:
                Console.WriteLine("{0} bytes sent.", obj.BytesSent);
                break;

            case UploadStatus.Failed:
                Log.Error("YouTube.UploadCaptionFile() => An error prevented the upload from completing. " + obj.Exception);
                break;
        }
    }

过去几天我一直在研究这个问题，但一直没有取得任何进展。YouTubeApi v3没有关于添加标题的太多信息。我所能找到的只是v2的一些旧信息，这需要一些POST调用，这些调用需要我没有的密钥。我希望能够使用API的内置方法添加标题

如果有人有处理这个问题的经验，我将非常感谢您提供的任何帮助

编辑：

这是我将视频发送到YouTube的代码

    public string UploadClipToYouTube()
    {
        try
        {
            var video = new Google.Apis.YouTube.v3.Data.Video();
            video.Snippet = new VideoSnippet();
            video.Snippet.Title = _videoClip.Name;
            video.Snippet.Description = _videoClip.Description;
            video.Snippet.Tags = GenerateTags();
            video.Snippet.DefaultAudioLanguage = "en";
            video.Snippet.DefaultLanguage = "en";
            video.Snippet.CategoryId = "22";
            video.Status = new VideoStatus();
            video.Status.PrivacyStatus = "unlisted";

            WebRequest req = WebRequest.Create(_videoPath);
            using (Stream stream = req.GetResponse().GetResponseStream())
            {
                VideosResource.InsertMediaUpload insertRequest = _youtubeService.Videos.Insert(video, "snippet, status", stream, "video/*");
                insertRequest.ProgressChanged += videosInsertRequest_ProgressChanged;
                insertRequest.ResponseReceived += videosInsertRequest_ResponseReceived;

                insertRequest.Upload();
            }
            return UploadedVideoId;
        }
        catch (Exception ex)
        {
            Log.Error("YouTube.UploadClipToYoutube() => Error attempting to authenticate for YouTube. Ex: " + ex);
            return "";
        }
    }

    void videosInsertRequest_ProgressChanged(Google.Apis.Upload.IUploadProgress progress)
    {
        switch (progress.Status)
        {
            case UploadStatus.Uploading:
                Log.Info("YouTube.videosInsertRequest_ProgressChanged() => Uploading to Youtube. " + progress.BytesSent + " bytes sent.");
                break;

            case UploadStatus.Failed:
                Log.Error("YouTube.videosInsertRequest_ProgressChanged() => An error prevented the upload from completing. Exception: " + progress.Exception);
                break;
        }
    }

    void videosInsertRequest_ResponseReceived(Google.Apis.YouTube.v3.Data.Video video)
    {
        Log.Info("YouTube.videosInsertRequest_ResponseReceived() => Video was successfully uploaded to YouTube.  The YouTube id is " + video.Id);
        UploadedVideoId = video.Id;
        UploadCaptionFile(video.Id);
    }

---

好的，我很快为您准备了一个我从

Java

翻译过来的东西（老实说大约15分钟）。首先，我注意到您当前的代码有很多方面，但这不是CodeReview

YouTubeApi v3没有太多关于添加字幕的信息。我所能找到的只是v2的一些旧信息

关于这一点，您是正确的，目前（v3）没有，但希望在不久的将来。这并没有阻止我们修改v2，尽管这对我们有利，因为api非常相似

代码已尝试和测试

private async Task addVideoCaption(string videoID) //pass your video id here..
        {
            UserCredential credential;
            //you should go out and get a json file that keeps your information... You can get that from the developers console...
            using (var stream = new FileStream("client_secrets.json", FileMode.Open, FileAccess.Read))
            {
                credential = await GoogleWebAuthorizationBroker.AuthorizeAsync(
                    GoogleClientSecrets.Load(stream).Secrets,
                    new[] { YouTubeService.Scope.YoutubeForceSsl, YouTubeService.Scope.Youtube, YouTubeService.Scope.Youtubepartner },
                    "ACCOUNT NAME HERE",
                    CancellationToken.None,
                    new FileDataStore(this.GetType().ToString())
                );
            }
            //creates the service...
            var youtubeService = new Google.Apis.YouTube.v3.YouTubeService(new BaseClientService.Initializer()
            {
                HttpClientInitializer = credential,
                ApplicationName = this.GetType().ToString(),
            });

            //create a CaptionSnippet object...
            CaptionSnippet capSnippet = new CaptionSnippet();
            capSnippet.Language = "en";
            capSnippet.Name = videoID + "_Caption";
            capSnippet.VideoId = videoID;
            capSnippet.IsDraft = false;

            //create new caption object
            Caption caption = new Caption();       

            //set the completed snippet to the object now...
            caption.Snippet = capSnippet;

            //here we read our .srt which contains our subtitles/captions...
            using (var fileStream = new FileStream("filepathhere", FileMode.Open))
            {
                //create the request now and insert our params...
                var captionRequest = youtubeService.Captions.Insert(caption, "snippet",fileStream,"application/atom+xml");

                //finally upload the request... and wait.
                await captionRequest.UploadAsync();
            }

        }

这里有一个示例

.srt

文件，如果您不知道该文件的外观或格式。

1
00:00:00,599 --> 00:00:03,160
>> Caption Test zaggler@ StackOverflow

2
00:00:03,160 --> 00:00:05,770
>> If you're reading this it worked!

。这是一个大约5秒的短片，只是为了向你展示它的工作原理和外观。而且。。。不，视频不是我的，只是为了测试而抓取的

---

祝你好运，编程愉快

几个问题。关于身份验证，您是否使用与上载相同的过程？错误为403禁止（这是显而易见的，但我认为也值得一问）您的字幕数据符合要求吗。另外，我也看到了这一点，唯一的区别是他收到的错误，你有没有试着检查他的代码？：）视频上传过程与字幕上传过程几乎相同。我将用我正在使用的视频上传过程更新我的原始帖子。在创建凭据时，我将“YouTubeService.Scope.YoutubeForceSsl”作为作用域之一，因此所有内容都应符合约束。我看过类似的帖子；事实上，其中一位回答者是一位前同事，他在离开之前正在做这个项目，我接管了这个项目。不幸的是，他发布的代码不起作用。@Chelsea这不是

v3

。版本3为Oauth使用

GoogleWebAuthorizationBroker

和

FileDataStore

。。。它还使用

wait

和

async

操作来防止锁定应用程序。你是不是把新版本和旧版本混在一起了？此外，我怀疑您没有为您的请求提供用户名，这可能是由于错误，或者您出于安全原因遗漏了此项……欢迎光临，很高兴我能提供帮助！此部分：credential=await GoogleWebAuthorizationBroker.AuthorizeAsync（GoogleClientSecrets.Load（stream）.Secrets，新[]{YouTubeService.Scope.YoutubeForceSsl，YouTubeService.Scope.Youtube，YouTubeService.Scope.Youtubepartner}，“此处的帐户名”，CancellationToken.None，新文件数据存储（this.GetType（）.ToString（））；