mp3在线测试地址/mp4在线测试地址:
http://downsc.chinaz.net/Files/DownLoad/sound1/201906/11582.mp3
http://downsc.chinaz.net/files/download/sound1/201206/1638.mp3
http://downsc.chinaz.net/Files/DownLoad/sound1/201906/11582.mp3
https://media.w3.org/2010/05/sintel/trailer.mp4
http://clips.vorwaerts-gmbh.de/big_buck_bunny.mp4
http://vjs.zencdn.net/v/oceans.mp4
http://mirror.aarnet.edu.au/pub/TED-talks/911Mothers_2010W-480p.mp4