There is a follow-up to this blog post.
Based on Steve Souders' blog post on video preload, I have been telling people that autoplay does not work on mobile.
Recently, the inevitable happened. I had to implement an autoplaying background video for a project. A background video did not make much sense on mobile, because it would use up a lot of bandwidth.
Modernizr offers a way to feature detect autoplay. It tries to start a video and after a timeout checks if the video is actually playing. Not a very lightweight test. So I settled on "good old" browser sniffing to detect a mobile browser and only serve video to desktop browsers.
Then I discovered that Windows Phone actually supports autoplay. So feature detection would not have been helpful in this case.
So I created an autoplay video page and did some more testing on mobile using the following code:
<video controls autoplay loop muted> <source src="video.mp4" type="video/mp4"> <source src="video.webm" type="video/webm"> </video>
Turns out that support differs greatly. I even tested on a WebOS phone, although the OS is now only available for LG Smart TVs.
|iOS Safari 600||no|
|iOS Chrome 43||no|
|Android Chrome 43||no|
|Android 4.2 Browser||no|
|Android Opera 30||no|
|Android Firefox 39||yes|
|Windows Phone 7||no|
|Windows Phone 8||no|
|Windows Phone 8.1||yes|
|Windows Phone 10||no|
|Opera Mini 10.2||no|
|Kindle Silk Browser 3.44||no|
So browser sniffing seems to be the only "good" solution for serving autoplaying videos.