一、在线音频mp3测试地址
http://music.163.com/song/media/outer/url?id=447925558.mp3
https://www.cambridgeenglish.org/images/153149-movers-sample-listening-test-vol2.mp3
https://www.cambridgeenglish.org/images/506891-a2-key-for-schools-listening-sample-test.mp3
http://downsc.chinaz.net/Files/DownLoad/sound1/201906/11582.mp3
http://downsc.chinaz.net/files/download/sound1/201206/1638.mp3
二、在线视频mp4测试地址
http://video.chinanews.com/flv/2019/04/23/400/111773_web.mp4
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://vfx.mtime.cn/Video/2019/03/19/mp4/190319212559089721.mp4
http://vfx.mtime.cn/Video/2019/03/18/mp4/190318231014076505.mp4