Question

如果有人熟悉使用youtubeextractor，我正在尝试执行以下操作。我正在使用该网站上发布的这个示例库。

string link = "youtube link";

IEnumerable<VideoInfo> videoInfos = DownloadUrlResolver.GetDownloadUrls(link);

VideoInfo video = videoInfos.First(info => info.VideoType == VideoType.Mp4 && info.Resolution == 360);

此代码仅查找特定分辨率，如果该分辨率不存在该怎么办？

如果有人有一个寻找1080分辨率的例子，如果1080不存在那么我们寻找720，否则按照这个优先级顺序获得420分辨率：1080 -> 720 -> 480

Answer 1

VideoInfo video = videoInfos.OrderByDescending(info=>info.Resolution)
                  .First(info => info.VideoType == VideoType.Mp4)

这将返回具有最佳分辨率的.MP4视频。

如果您只对某些分辨率感兴趣，那么您可以将其作为

var allowedResolutions = new List<int>() { 1080, 720, 480, 360 };

VideoInfo video = videoInfos.OrderByDescending(info=>info.Resolution)
                  .Where(info => allowedResolutions.Contains(info.Resolution))
                  .First(info => info.VideoType == VideoType.Mp4)

Answer 2

IEnumerable<VideoInfo> videos = DownloadUrlResolver.GetDownloadUrls(txtUrl.Text);
foreach (var vid in videos) {
    if (vid.Resolution > maxRez)
        maxRez = vid.Resolution;
}
cboRezolution.Text = maxRez.ToString();
VideoInfo video = videos.First(p => p.VideoType == VideoType.Mp4 && p.Resolution == Convert.ToInt32(maxRez));
lblStatus.Text = video.Title;

Answer 3

public static IEnumerable<VideoInfo> GetVideoInfos(YoutubeModel model)
{
    int xx;
    IEnumerable<VideoInfo> videoInfos = DownloadUrlResolver.GetDownloadUrls(model.Link);

        int[] arr = new int[3] { 360, 720, 1080 };
        for (xx = 0; xx < 3; xx++)
        {
            try 
            {
                VideoInfo video = videoInfos
                                   .First(info => info.VideoType == VideoType.Mp4 && info.Resolution == arr[xx]);
            }
            catch (Exception st)
            {

            }
        }
    return videoInfos;
}

//Returns VideoInfo object (Only for video model)
public static VideoInfo GetVideoInfo(YoutubeVideoModel videoModel)
{
    //Select the first .mp4 video with 360p resolution
    VideoInfo video = videoModel.VideoInfo.First();
    return video;
}

Answer 4

作为替代方案，考虑使用YoutubeExplode，它具有用于存储视频质量的强类型枚举，以及许多其他优点。

您可以使用它来执行以下操作：

using (var client = new YoutubeClient())
{
   // Get the video info
   var videoInfo = await client.GetVideoInfoAsync("video_id");

   // Get streams above 480p and sort them by quality descending (higher first)
   var hqStreams = videoInfo.Streams.Where(s => s.Quality >= VideoStreamQuality.Medium480).OrderByDescending(s => s.Quality);

   // Select the first stream (highest quality)
   var bestStream = hqStreams.First();
}

youtubeextractor获得不同的分辨率

4 个答案: