Does video.js support HLS video format? If it does, on what
plataforms? (Browser, Devices, browser...?). Sorry, I searched for
this on the web site and didn't find anything.
是的，今天，在任何使用HTML5(iPhone， table 面Safari)支持它的平台上，都使用源上的“application/x-mpegURL”模仿类型。即将在所有台式机上也支持HLS。
I saw that Ogg and MP4 file formats are the most supported file types,
and WebM isn't so much. I have searched about what's WebM... is that
HLS? Are there other supported file formats than those not listed on
the website?
实际上，就最终用户支持而言，WebM，MP4和Ogg现在都息息相关。 WebM是一种开放和免费的格式，例如Ogg，但压缩效果略好一些。 WebM不是HLS。 HLS是MPEG-TS视频文件片段的播放列表。
Does video.js support Video Advertising and Google Analytics?
很快。
Playback features, something like a list in the final of a video where
I can choose another one. Is that possible?
您可以自己构建它。目前还没有预制的解决方案。
Is there support to adaptive streaming? That is, adjust the quality of
a video delivered to a web page based on changing network conditions?
通过HLS，是的。
Is it easy to customize the player creating skins and applying them on
it? Can I put a symbol of my web site on the player, for example?
Video.js都是开源的，皮肤是使用HTML，CSS和JavaScript构建的。如果您对这些技术感到满意，那么就不难让它看起来像您想要的那样。
摘要在过去的几年中，Video.js一直是我的副项目，但是Zencoder(我的公司)被Brightcove收购，现在我可以全职工作，并从Brightcove播放器团队获得帮助。因此，期待有大的事情来临。如果您受到启发，我也总是很乐意获得更多帮助。