HTML5 video for iPhone and Android

According to http://www.开发者_运维问答treysmithblog.com/how-to-make-html5-videos-for-iphone-and-ipad/

To play video on iPhone with HTML5, we should using QuickTime to transform the mp4 file. After transforming the mp4 file, is it also support for Android and other OS like windows, linux?

Thanks

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If only it were that simple. I'm not sure what format Android supports for html5 video, or if it even does. Google put out an opinion piece that by default all browsers should support the open source WebM format, which they purchased and then open sourced. I believe this is the default format for the Desktop Chrome browser. Windows will support any format that you've installed a codec for, so if the user has Quicktime installed mp4 should work, if not maybe not. If you supply a fallback of Flash video, then most newer versions of Android should support that.

Good Luck!

ps You may want to take a look at this.