Non-streaming media element
A non-streaming media element is an HTML Media Element for which the duration
property is not 0.
Audio and visuals of video
element have transcript
This rule checks that non-streaming video
elements have all audio and visual information available in a transcript.
This rule applies to every non-streaming video
element that is visible.
A text transcript containing all the visual and auditory information of the test target is available, either on the page or available through a link.
Note: A "text transcript" in the context of this rule is defined in WCAG 2 as an alternative for time based media.
There are no major accessibility support issues known for this rule.
A video element with a text transcript on the same page.
<html lang="en">`
<video controls>
<source src="/test-assets/rabbit-video/video.mp4" type="video/mp4"></source>
<source src="/test-assets/rabbit-video/video.webm" type="video/webm"></source>
</video>
<p>The above video shows a giant fat rabbit climbing out of a hole in the ground.
He stretches, yaws, and then starts walking.
Then he stops to scratch his bottom.</p>
</html>
A video element with a link to a text transcript on a different page.
<html lang="en">`
<video controls>
<source src="/test-assets/rabbit-video/video.mp4" type="video/mp4"></source>
<source src="/test-assets/rabbit-video/video.webm" type="video/webm"></source>
</video>
<a href="/test-assets/rabbit-video/transcript.html">Transcript</a>
</html>
A video element with an incorrect text transcript on the same page.
<html lang="en">`
<video controls>
<source src="/test-assets/rabbit-video/video.mp4" type="video/mp4"></source>
<source src="/test-assets/rabbit-video/video.webm" type="video/webm"></source>
</video>
<p>The above video shows a giant fat dog climbing out of a hole in the ground.
He stretches, yaws, and then starts walking.
Then he stops to scratch his bottom.</p>
</html>
A video element with a link to an incorrect text transcript on a different page.
<html lang="en">`
<video controls>
<source src="/test-assets/rabbit-video/video.mp4" type="video/mp4"></source>
<source src="/test-assets/rabbit-video/video.webm" type="video/webm"></source>
</video>
<a href="/test-assets/rabbit-video/incorrect-transcript.html">Transcript</a>
</html>
A video element that is not visible.
<html lang="en">`
<video controls style="display: none;">
<source src="/test-assets/rabbit-video/video.mp4" type="video/mp4"></source>
<source src="/test-assets/rabbit-video/video.webm" type="video/webm"></source>
</video>
<a href="/test-assets/rabbit-video/transcript.html">Transcript</a>
</html>
A non-streaming media element is an HTML Media Element for which the duration
property is not 0.
An outcome is a conclusion that comes from evaluating an ACT Rule on a test subject or one of its constituent test target. An outcome can be one of the three following types:
Note: A rule has one passed
or failed
outcome for every test target. When there are no test targets the rule has one inapplicable
outcome. This means that each test subject will have one or more outcomes.
Note: Implementations using the EARL10-Schema can express the outcome with the outcome property. In addition to passed
, failed
and inapplicable
, EARL 1.0 also defined an incomplete
outcome. While this cannot be the outcome of an ACT Rule when applied in its entirety, it often happens that rules are only partially evaluated. For example, when applicability was automated, but the expectations have to be evaluated manually. Such "interim" results can be expressed with the incomplete
outcome.
Content perceivable through sight.
Content is considered visible if making it fully transparent would result in a difference in the pixels rendered for any part of the document that is currently within the viewport or can be brought into the viewport via scrolling.
For more details, see examples of visible.
This section is not part of the official rule. It is populated dynamically and not accounted for in the change history or the last modified date. This section will not be included in the rule when it is published on the W3C website.
Tool | Consistency | Complete | Report |
---|---|---|---|
QualWeb | consistent | Yes | View Report |