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by (310 points)

I'm using Harlowe 2.1.0;

I'm trying to get my story to use looping .webms, but can't seem to figure out how to display them.

When I do this:

<video preload="preload"  id="video" autoplay="autoplay" loop="loop">
<source src="example.webm" type="video/webm"></source>

I get the first frame of the .webm, but it doesn't play (in Chrome). In IE, it doesn't even display. What's the best way to display looping videos in Harlowe?


1 Answer

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by (149k points)
edited by

As explained in this article Google recently changed Chrome so that by default it will no longer autoplay video unless certain conditions are true.

Web-browsers being run on mobile devices generally don't allow autoplay of media files like audio & video, are you doing your testing on a mobile device?

I suggests you look at the video element documentation because there are also a number of issues in your example, 

1. The preload attribute needs to be assigned one of a known set of values, "preload" isn't one of them, and as explained in the documentation including a autoplay attribute automatically makes this attribute redundant.

2. The autoplay and loop attributes are Boolean in nature, so you don't need to assign then a value.

3. The source element is self ending, so there is no need for a end source tag.

4. Line-breaks within the source area of the video element should be escaped.

5. [optional] Ideally you should include a text message for those running a web-browser that doesn't support the video element.

The following is a modified version of your example which should work as you want within web-browsers that support autoplay and loop, and under the conditions that that specific web-browser requires.

<video id="video" autoplay loop>\
	<source src="media/example.webm" type="video/webm">\
	<p>Your browser doesn't support HTML5 video.</p>\

<video id="video" autoplay loop>
	<source src="media/example.webm" type="video/webm">
	<p>Your browser doesn't support HTML5 video.</p>

edit: added an example that uses Collapsing whitespace markup

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