URL:https://cdn.vox-cdn.com/thumbor/J_C1QYwYzZdkWdwC_IyPgrHSvjg=/0x0:2040x1530/920x613/filters:focal(857x602:1183x928)/cdn.vox-cdn.com/uploads/chorus_image/image/52052947/IMG_0915-2040b.0.0.jpeg
掲載元:http://www.theverge.com/2016/11/30/13783272/youtube-update-4k-live-streaming-support-360-video