如何通过在 C# 中调用 YouTube API 来获取所有 Youtube 视频的持续时间

Question

我想在调用youtubeService.Search.List("snippet");后获取列表中每个视频的时长 以下是我的代码

var youtubeService = new YouTubeService(new BaseClientService.Initializer()
            {
                ApiKey = "API Key",
                ApplicationName = this.GetType().ToString()
            });

            var searchListRequest = youtubeService.Search.List("snippet");
            searchListRequest.MaxResults = 30;
            var searchListResponse = searchListRequest.Execute();

我读到持续时间在视频的内容详细信息中，但每个视频的内容详细信息为空。

Answer 1

查看search.list 的文档后，您会看到它返回了search#resource 的列表

{
  "kind": "youtube#searchResult",
  "etag": etag,
  "id": {
    "kind": string,
    "videoId": string,
    "channelId": string,
    "playlistId": string
  },
  "snippet": {
    "publishedAt": datetime,
    "channelId": string,
    "title": string,
    "description": string,
    "thumbnails": {
      (key): {
        "url": string,
        "width": unsigned integer,
        "height": unsigned integer
      }
    },
    "channelTitle": string,
    "liveBroadcastContent": string
  }
}

其中不包含有关视频时长的任何信息。此方法似乎不会返回您要查找的信息。

视频列表

只有包含video.resource 的videos.list 才能为您提供视频的时长

 {
      "kind": "youtube#video",
      "etag": "U-t7IORpXf52WZSn6hBzfgm6WLo",
      "id": "XOIZZEdfrfA",
      "contentDetails": {
        "duration": "PT8M51S",
        "dimension": "2d",
        "definition": "hd",
        "caption": "false",
        "licensedContent": true,
        "contentRating": {},
        "projection": "rectangular"
      }