User cannot add necessary accessibility attributes to make the default video player accessible.

Issue
The following issues are reported for a video uploaded via the file picker. There is no way for a teacher to add this information, meaning no form fields or meta data.

Time-Based Media - There is no text alternative provided to describe the video.
Transcript - There is no descriptive text transcript provided for the content of the video.
Captions - There are no synchronized text captions provided for the content of the video.
Audio-description - There is no audio-description provided for the purely visual content of the video.

Standard Level
WCAG 2 1.1.1 (A) http://www.w3.org/TR/UNDERSTANDING-WCAG20/text-equiv-all.html
WCAG 2 1.2.1 (A) http://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-av-only-alt.html
WCAG 2 1.2.2 (A) http://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-captions.html
WCAG 2 1.2.3 (A) http://www.w3.org/TR/UNDERSTANDING-WCAG20/media-equiv-audio-desc.html

Impact
Critical
Serious

Example Link
http://demo.moodle.net/

Test Steps

1. Login as teacher
2. Navigate to the CF101 course
3. Turn editing on
4. Add a file resource
5. Upload a video file
6. Try to add any of the accessible information.