百家云真实下载地址算法

202sjx

访问这个地址http://www.baijiayun.com/vod/video/getPlayUrl?vid=8991237&sid=undefined&render=jsonp&client_type=h5&ver=2&token=NzQt9Di85PhMyA0LsBVeTNSf7fV0A2I7r2YVwxedeHcN9XSIWYR4QORG9JOIhVd4&callback=jQuery18305135397154299413_1521774621627&_=1521774621743

得到

jQuery18305135397154299413_1521774621627({"code":0,"data":{"duration":"1271","definition":[{"type":"superHD","name":"超清"}],"vod_default_definition":"superHD","playback_default_definition":"superHD","play_info":{"superHD":{"definition":"超清","size":153770613,"cdn_list":[{"cdn":"csy","definition":"high","duration":1271,"height":576,"size":153770613,"url":"","width":1024,"weight":4,"enc_url":"bjcloudvod://Qml4e3c8NDRsZnZ_Nndta2xxM2dpbG1vanp5dTVldHI3OTdrQDhoODhkOjc7NmU4Pjk4Oj1oOGg7ODQ3OmQ3O2kxOmZqN2VqazEzNzcvfTJ9c291amUzfXBmanQ3Ozw_OjM3PmY0PWprZTQ8PDQ2a2g3Nzs5OjRrQTg5aj82aGc_NDdsOmBdXk4zNWpNazFzeTU"},{"cdn":"al","definition":"high","duration":1271,"height":576,"size":153770613,"url":"","width":1024,"weight":3,"enc_url":"bjcloudvod://SWl3eXQ8MzJpZG4xfGpnanMwZmRubWtlf3ZxM2dxcTI7N2c7PWU0NmY3NjY4ZTQ5PjU2O2o1ZzY6NDM1aTQ3ZzM3ZWU5ZWZmNjAzNTF6MXh1b3FlajB5bmhnczI9PDs1ODQ6ZDY6aWZnNDg3OTNnZjk0OjQ8NGc8PTZmPThlZjo2N2g1ZVpaTDUyaUhtMW90Og"}]}},"video_id":"8991237","init_pic":"http://img.baijiayun.com/00-x-upload/image/8991237_fcfe6d4083a6cce3a9999f518c170adb_XZILmlox.jpg","guid":"D1646BD1E10FC252739279361CE320D6","format":"mp4","template":"","report_interval":120,"video_info":{"video_id":"8991237","title":"CE30CE7262D63CF99C33DC5901307461","partner_id":"33243432","serial_number":0,"video_snapshot":[]},"logo_url":"http://img.baijiayun.com/0baijiacloud/player_logo/transparent.png","home_url":"","video_auto_replay":1,"pre_load_logo":"http://img.baijiayun.com/baijiacloud/45760237_vxasbpom.jpg","player_skin":"#43b526","start_video":"","end_video":"","disable_hourse_lamp":true,"video_watermark":{"url":"","pos":0},"section_list":[],"ad":null},"msg":"","ts":1521774680})

其中bjcloudvod://SWl3eXQ8MzJpZG4xfGpnanMwZmRubWtlf3ZxM2dxcTI7N2c7PWU0NmY3NjY4ZTQ5PjU2O2o1ZzY6NDM1aTQ3ZzM3ZWU5ZWZmNjAzNTF6MXh1b3FlajB5bmhnczI9PDs1ODQ6ZDY6aWZnNDg3OTNnZjk0OjQ8NGc8PTZmPThlZjo2N2g1ZVpaTDUyaUhtMW90Og

这个地址是加密以后的地址，怎么还原成真实下载地址？求大神帮忙！

qq8950313

虽然看不懂 但还是支持一下

落雪倾城

就算转成功了 下载速度可是不能保证的