Hi, mediaelement in WPF does not have support to play audio/video stream. Download stream to local file like this:
WebClient client = new WebClient();
string url = @"https://lgresv57.obs.cn-south-1.myhuaweicloud.com/lgRs/5cb46c128156422a97686475b0b645e5/dae926d641e143d79c1a4690bf0149a1.mp3";
client.DownloadFile(url,@"c:\temp\x.mp3");
Uri path = new Uri(@"c:\temp\x.mp3");
MediaPlayer me_media = new MediaPlayer();
me_media.Open(path);
me_media.Play();