wpf 我如何在 c# 中使用 Youtube 直播流 API？

How can i use Youtube live stream API in c#?

提问by changexchange

I want to make a WPF application that gets the video from my ip camera and sends it to my youtube channel live. I look around all of the websites but there's no example how can i live stream a video to Youtube with c#. There are examples in google's website but they were written with PHP, Java and Phyton but I don't know this programming languages so i couldn't use the API.

我想制作一个 WPF 应用程序，从我的 ip 摄像头获取视频并将其实时发送到我的 youtube 频道。我环顾了所有网站，但没有示例如何使用 c# 将视频直播到 Youtube。谷歌的网站上有一些例子，但它们是用 PHP、Java 和 Phyton 编写的，但我不知道这种编程语言，所以我无法使用 API。

I tried to write a little bit but it didn't work. Here's my code that i wrote looking through the Java example.

我试着写一点，但没有奏效。这是我在查看 Java 示例时编写的代码。

UserCredential credential = GoogleWebAuthorizationBroker.AuthorizeAsync(
          new ClientSecrets { ClientId = "MyClientId", ClientSecret = "MyClientSecret" },
          new[] { DriveService.Scope.Drive,
            DriveService.Scope.DriveFile },
          "My Youtube Channel Name",
          CancellationToken.None,
          new FileDataStore("Drive.Auth.Store")).Result;

        string devkey = "AIzaSyCbxm6g9orAw9PF3MkzTb_0PGbpD3Xo1Qg";
        string username = "MyYoutubeChannelEmailAdress";
        string password = "MyPassword";

        YouTubeRequestSettings youtubereqsetting = new YouTubeRequestSettings("API Project", devkey, username, password);

        YouTubeRequest youtubereq = new YouTubeRequest(youtubereqsetting);

        LiveBroadcastSnippet broadcastSnippet = new LiveBroadcastSnippet();

        broadcastSnippet.Title = "Test Live Stream";
        broadcastSnippet.ScheduledStartTime = new DateTime(2015, 3, 12, 19, 00, 00);
        broadcastSnippet.ScheduledEndTime = new DateTime(2015, 3, 12, 20, 00, 00);


        LiveBroadcastStatus status = new LiveBroadcastStatus();
        status.PrivacyStatus = "Private";

        LiveBroadcast broadcast = new LiveBroadcast();

        broadcast.Kind = "youtube#liveBroadcast";
        broadcast.Snippet = broadcastSnippet;
        broadcast.Status = status;

        Google.Apis.YouTube.v3.LiveBroadcastsResource.InsertRequest liveBroadcastInsert = new Google.Apis.YouTube.v3.LiveBroadcastsResource.InsertRequest(service, broadcast, "");            
        LiveBroadcast returnLiveBroadcast = liveBroadcastInsert.Execute();

Please, help me!?!?!?

请帮我！？！？！？

回答by Guilherme Branco Stracini

Here is how I managed to make it work:

这是我设法使它工作的方法：

1. Create a App - Google Developer Console
2. Enable the API on your App - Youtube Data API v3
3. Create a OAuth Client ID - Create OAuth Credential
4. The application type must be setted to Others
5. Copy your Client Id and your Client Secret to a safe location.
6. Access the following URL (you should be logged with the Google Account that will broadcast the live stream):

1. 创建应用程序 - Google Developer Console
2. 在您的应用程序上启用 API - Youtube Data API v3
3. 创建 OAuth 客户端 ID -创建 OAuth 凭据
4. 应用类型必须设置为其他
5. 将您的客户 ID 和客户密码复制到安全位置。
6. 访问以下 URL（您应该使用将直播直播的 Google 帐户登录）：

https://accounts.google.com/o/oauth2/auth?client_id=CLIENT_ID&scope=https://gdata.youtube.com&response_type=code&access_type=offline&redirect_uri=urn:ietf:wg:oauth:2.0:oob

Change the CLIENT_IDwith your client id generated at step 3

https://accounts.google.com/o/oauth2/auth?client_id= CLIENT_ID&scope= https://gdata.youtube.com&response_type=code&access_type=offline&redirect_uri=urn:ietf:wg:oauth:2.0:oob

使用您在第 3 步中生成的客户端 ID更改CLIENT_ID

1. Copy the generated token from the input text box on the page.

2. Using some tool (cURL, wget, Postman plugin for Google Chrome, whatever...) make a POST request to the following URL:

   https://accounts.google.com/o/oauth2/token

   Make a HTTP POST x-www-form-urlencodedto this url with the following fields: (Change only client_id, client_token and code, the 2 first leave as it).

   {
       grant_type=authorization_code,
       redirect_uri=urn:ietf:wg:oauth2.0:oob,
       code=token_from_step_6_&_7
       client_id=your_client_id,
       client_secret=your_client_secret,
   }
   

3. If all looks good until here, you should get a response like this one:

   {
   "access_token" : "token valid for next few minutes. WE DON'T WANT THIS ONE",
   "token_type" : "Bearer",
   "expires_in" : 3600,
   "refresh_token" : "token valid for offline app. COPY THIS ONE, AND STORE IT"
   }
   

4. Now, that we have all the authentication data needed (client_id, client_secret, refresh_token), it's time to play with the API.

       public String CreateLiveBroadcastEvent(String eventTitle, DateTime eventStartDate)
      {
           ClientSecrets secrets = new ClientSecrets()
           {
               ClientId = CLIENT_ID,
               ClientSecret = CLIENT_SECRET
           };
           var token = new TokenResponse { RefreshToken = REFRESH_TOKEN };
           var credentials = new UserCredential(new GoogleAuthorizationCodeFlow(
           new GoogleAuthorizationCodeFlow.Initializer { ClientSecrets = secrets }),
           "user", token);
           var service = new YouTubeService(new BaseClientService.Initializer
           {
               HttpClientInitializer = credentials,
               ApplicationName = "your-app-name"
           });
           var broadcast = new LiveBroadcast
           {
               Kind = "youtube#liveBroadcast",
               Snippet = new LiveBroadcastSnippet
               {
                   Title = eventTitle,
                   ScheduledStartTime = eventStartDate
               },
               Status = new LiveBroadcastStatus { PrivacyStatus = "public" }
           };
           var request = service.LiveBroadcasts.Insert(broadcast, "id,snippet,status");
           var response = request.Execute();
           return response.Id;
       }
   

7. 从页面上的输入文本框中复制生成的令牌。

8. 使用一些工具（cURL、wget、Google Chrome 的 Postman 插件等等）向以下 URL 发出 POST 请求：

   https://accounts.google.com/o/oauth2/token

   使用以下字段将 HTTP POST x-www-form-urlencoded发送到此 url：（仅更改 client_id、client_token 和代码，第 2 个保留原样）。

   {
       grant_type=authorization_code,
       redirect_uri=urn:ietf:wg:oauth2.0:oob,
       code=token_from_step_6_&_7
       client_id=your_client_id,
       client_secret=your_client_secret,
   }
   

9. 如果到这里为止一切看起来都不错，您应该会得到如下响应：

   {
   "access_token" : "token valid for next few minutes. WE DON'T WANT THIS ONE",
   "token_type" : "Bearer",
   "expires_in" : 3600,
   "refresh_token" : "token valid for offline app. COPY THIS ONE, AND STORE IT"
   }
   

10. 现在，我们拥有了所需的所有身份验证数据（client_id、client_secret、refresh_token），是时候使用 API 了。

        public String CreateLiveBroadcastEvent(String eventTitle, DateTime eventStartDate)
       {
            ClientSecrets secrets = new ClientSecrets()
            {
                ClientId = CLIENT_ID,
                ClientSecret = CLIENT_SECRET
            };
            var token = new TokenResponse { RefreshToken = REFRESH_TOKEN };
            var credentials = new UserCredential(new GoogleAuthorizationCodeFlow(
            new GoogleAuthorizationCodeFlow.Initializer { ClientSecrets = secrets }),
            "user", token);
            var service = new YouTubeService(new BaseClientService.Initializer
            {
                HttpClientInitializer = credentials,
                ApplicationName = "your-app-name"
            });
            var broadcast = new LiveBroadcast
            {
                Kind = "youtube#liveBroadcast",
                Snippet = new LiveBroadcastSnippet
                {
                    Title = eventTitle,
                    ScheduledStartTime = eventStartDate
                },
                Status = new LiveBroadcastStatus { PrivacyStatus = "public" }
            };
            var request = service.LiveBroadcasts.Insert(broadcast, "id,snippet,status");
            var response = request.Execute();
            return response.Id;
        }
    

回答by Ibrahim Ulukaya

It seems like you are trying to use ClientLogin as I see username and pass. Instead use OAuth2 and use these samples for guidance.

当我看到用户名并通过时，您似乎正在尝试使用 ClientLogin。而是使用 OAuth2 并使用这些示例作为指导。