ISSUE-9: how accessibility works for <video> is unclear

video-accessibility

how accessibility works for <video> is unclear

State:

CLOSED

Product:

pre-LC1 HTML 5 spec

Raised by:

Chris Wilson

Opened on:

2007-11-08

Description:

Issue is detailed at: Multimedia Accessibility <Audio> <Video>
http://esw.w3.org/topic/HTML/MultimediaAccessibilty

Related Bugs:
5758: Insufficient accessibility fallback for <audio> or <video>:
http://www.w3.org/Bugs/Public/show_bug.cgi?id=5758
8187: Section 4.8.7 on video makes no reference to audio description
http://www.w3.org/Bugs/Public/show_bug.cgi?id=8187
8657: Allow UA to reload fallback content if it fails to load
http://www.w3.org/Bugs/Public/show_bug.cgi?id=8657
8658: Availability of captions or additional audio tracks
http://www.w3.org/Bugs/Public/show_bug.cgi?id=8658
8659: Media events to indicate captions and audio descriptions
http://www.w3.org/Bugs/Public/show_bug.cgi?id=8659
8736: Decision to playback for media should be left to the user agent
http://www.w3.org/Bugs/Public/show_bug.cgi?id=8736
11593: the <track> @kind attribute should include the all of the identified accessibility content types
http://www.w3.org/Bugs/Public/show_bug.cgi?id=11593
11207: Make track element additions technology neutral http://www.w3.org/Bugs/Public/show_bug.cgi?id=11207

Accessibility Task force Media Sub-Group Wiki Page:
http://www.w3.org/WAI/PF/HTML/wiki/Media_Sub-Group

Minutes: Accessibility of Media Elements in HTML 5 Gathering, November 1, 2009
http://www.w3.org/2009/11/01-media-minutes.html

HTML5-SPEC-SECTIONS [video timed-tracks-0 the-track-element timed-tracks]

Related Actions Items:

• ACTION-140 on Cynthia Shelly to Follow up with sean hayes - due 2009-09-03, closed
• ACTION-189 on Paul Cotton to Check on the status of the request for spec additions related to the <track> element - due 2010-10-21, closed
• ACTION-187 on Maciej Stachowiak to Inform the group that no comments on issue-9 requirements means they will be accepted - due 2010-10-28, closed
• ACTION-192 on Frank Olivier to provide mapping from media accessibility requirements doc to spec changes or guidelines for UAs - due 2010-11-11, closed

Related emails:

1. [Bug 19020] New: <audio> and <video> do not have sufficient support for synchronized accessibility content (from bugzilla@jessica.w3.org on 2012-09-25)
2. {minutes} HTML WG telecon 2011-03-10: Action items, issues, surveys and decisions (from Paul.Cotton@microsoft.com on 2011-03-11)
3. {agenda} HTML WG telecon 2011-03-10: Action items, issues, surveys and decisions (from Paul.Cotton@microsoft.com on 2011-03-08)
4. Re: ISSUE-9 video-accessibility: Call for Consensus to close in favor of specific issues, or Alternate/Counter-Proposals (from rubys@intertwingly.net on 2011-03-04)
5. {minutes} HTML WG telecon 2011-03-03: Issues, Decisions, Task Force Reports, and Other Business (from Paul.Cotton@microsoft.com on 2011-03-04)
6. RE: ISSUE-9 video-accessibility: Call for Consensus to close in favor of specific issues, or Alternate/Counter-Proposals (from jfoliot@stanford.edu on 2011-03-03)
7. RE: {minutes} HTML WG telecon 2011-03-03: Issues, Decisions, Task Force Reports, and Other Business (from adrianba@microsoft.com on 2011-03-03)
8. Re: ISSUE-9 video-accessibility: Call for Consensus to close in favor of specific issues, or Alternate/Counter-Proposals (from mjs@apple.com on 2011-03-02)
9. RE: ISSUE-9 video-accessibility: Call for Consensus to close in favor of specific issues, or Alternate/Counter-Proposals (from jfoliot@stanford.edu on 2011-03-02)
10. {agenda} HTML WG telecon 2011-03-03: Issues, Decisions, Task Force Reports, and Other Business (from rubys@intertwingly.net on 2011-03-02)
11. {minutes} HTML WG telecon 2011-02-24: Action items and Issues (from Paul.Cotton@microsoft.com on 2011-02-24)
12. ISSUE-9 video-accessibility: Call for Consensus to close in favor of specific issues, or Alternate/Counter-Proposals (from mjs@apple.com on 2011-02-24)
13. {agenda} HTML WG telecon 2011-02-24: Action items and Issues (from Paul.Cotton@microsoft.com on 2011-02-23)
14. RE: {minutes} HTML WG telecon 2011-02-03: Issues, survey, A11y TF mini-report, Bug 11984 (from adrianba@microsoft.com on 2011-02-10)
15. RE: {minutes} HTML WG Telecon 2010-12-02: status, task force reports, deadlines and publications, meeting schedule (from adrianba@microsoft.com on 2010-12-02)
16. {minutes} HTML WG F2F minutes, Lyon, France, Nov 4-5 Part 1 (from Paul.Cotton@microsoft.com on 2010-11-09)
17. RE: {minutes} HTML WG Telecon 2010-10-28: status of actions, calls, issues, heartbeat drafts, TPAC, Task Force reports (from adrianba@microsoft.com on 2010-10-28)
18. {agenda} HTML WG Telecon 2010-10-28: status of actions, calls, issues, heartbeat drafts, TPAC, Task Force reports (from Paul.Cotton@microsoft.com on 2010-10-28)
19. {minutes} } HTML WG Telecon 2010-10-21: status of actions, calls, issues, heartbeat drafts, and TPAC (from Paul.Cotton@microsoft.com on 2010-10-21)
20. {agenda} HTML WG Telecon 2010-10-21: status of actions, calls, issues, heartbeat drafts, and TPAC (from rubys@intertwingly.net on 2010-10-20)
21. Re: Media Accessibility User Requirements Published (from silviapfeiffer1@gmail.com on 2010-10-17)
22. RE: Media Accessibility User Requirements Published (from janina@rednote.net on 2010-10-16)
23. RE: {minutes} HTML WG Telecon 2010-10-14 actions, status of calls, issues and bugs, heartbeat drafts, task force reports (from adrianba@microsoft.com on 2010-10-14)
24. {agenda} HTML WG Telecon 2010-10-14 actions, status of calls, issues and bugs, heartbeat drafts, task force reports (from Paul.Cotton@microsoft.com on 2010-10-13)
25. {agenda} HTML WG Telecon 2010-09-23 status of calls, issues and bugs, heartbeat drafts (from mjs@apple.com on 2010-10-06)
26. {agenda} HTML WG Telecon 2010-09-30 status of calls, issues and bugs, Task Force Reports (from rubys@intertwingly.net on 2010-09-28)
27. RE: {minutes} HTML WG Telecon 2010-09-23 status of calls, issues and bugs, TPAC F2F (from adrianba@microsoft.com on 2010-09-23)
28. {agenda} HTML WG Telecon 2010-09-23 status of calls, issues and bugs, TPAC F2F (from Paul.Cotton@microsoft.com on 2010-09-22)
29. {agenda} HTML WG Telecon 2010-09-09 status of calls, heartbeat, last call; task force reports; bugzilla notifications, discussion guidelines (from rubys@intertwingly.net on 2010-09-15)
30. RE: {minutes} HTML WG Telecon 2010-09-09 - LC timeline, distributed extensibility, media accessibility (from adrianba@microsoft.com on 2010-09-09)
31. {agenda} HTML WG Telecon 2010-09-09 - LC timeline, distributed extensibility, media accessibility (from mjs@apple.com on 2010-09-08)
32. Re: {agenda} HTML WG telecon 2010-09-02, action items, media accessibility requirements overview (from janina@rednote.net on 2010-09-02)
33. {agenda} HTML WG telecon 2010-09-02, action items, media accessibility requirements overview (from Paul.Cotton@microsoft.com on 2010-08-31)
34. {Announcement} Media accessibility user requirements overview, Thu Sep 2 (from Paul.Cotton@microsoft.com on 2010-08-31)
35. HTML Working Group Status (from plh@w3.org on 2010-08-27)
36. {minutes} } HTML WG telecon 2010-08-26, action items, state of various issues (from Paul.Cotton@microsoft.com on 2010-08-27)
37. RE: Media Accessibility User Requirements Published (from Paul.Cotton@microsoft.com on 2010-08-26)
38. {agenda} HTML WG telecon 2010-08-26, action items, state of various issues (from mjs@apple.com on 2010-08-25)
39. RE: {minutes} HTML WG telecon 2010-08-19: WG decisions, Decision Policy, TF reports (from adrianba@microsoft.com on 2010-08-19)
40. {agenda} HTML WG telecon 2010-08-19: WG decisions, Decision Policy, TF reports (from Paul.Cotton@microsoft.com on 2010-08-17)
41. RE: {minutes} HTML WG telecon 2010-08-04 [task force week] (from adrianba@microsoft.com on 2010-08-05)
42. {agenda} HTML WG telecon 2010-08-04 [task force week] (from rubys@intertwingly.net on 2010-08-04)
43. RE: {minutes} HTML WG telecon 2010-07-22 (from adrianba@microsoft.com on 2010-07-22)
44. RE: {agenda} HTML WG telecon 2010-07-22 (from eliotgra@microsoft.com on 2010-07-22)
45. RE: {agenda} HTML WG telecon 2010-07-22 (from krisk@microsoft.com on 2010-07-22)
46. {agenda} HTML WG telecon 2010-07-22 (from mjs@apple.com on 2010-07-21)
47. Re: issue-30 and author conformance requirements (from jonas@sicking.cc on 2010-07-14)
48. Re: issue-30 and author conformance requirements (from rubys@intertwingly.net on 2010-07-13)
49. {minutes} HTML WG telecon 2010-07-08: actions, issues, decisions, revised proposals, future surveys, TF reports (from Paul.Cotton@microsoft.com on 2010-07-08)
50. {minutes} } HTML WG telecon 2010-07-24: issues, surveys, decisions, publication status, TF reports (from Paul.Cotton@microsoft.com on 2010-06-25)
51. Fwd: {agenda} HTML WG telecon 2010-07-24: issues, surveys, decisions, publication status, TF reports (from rubys@intertwingly.net on 2010-06-23)
52. {minutes} HTML WG telecon 2010-06-10: action items, decision policy, task force reports, publication status (from adrianba@microsoft.com on 2010-06-10)
53. RE: {agenda} HTML WG telecon 2010-05-27 (from adrianba@microsoft.com on 2010-05-27)
54. Re: {agenda} HTML WG telecon 2010-05-27 (from faulkner.steve@gmail.com on 2010-05-27)
55. Re: {agenda} HTML WG telecon 2010-05-27 (from laura.lee.carlson@gmail.com on 2010-05-27)
56. {agenda} HTML WG telecon 2010-05-27 (from rubys@intertwingly.net on 2010-05-26)
57. {agenda} HTML WG telecon 2010-05-20: Surveys close, Publishing new Working Drafts (from mjs@apple.com on 2010-05-19)
58. {agenda} HTML WG telecon 2010-05-13: Action items, surveys, Task Force reports (from mjs@apple.com on 2010-05-12)
59. RE: {agenda} HTML WG telcon 2010-04-29: Action items, new issues, Task Force reports - minutes of the meeting (from adrianba@microsoft.com on 2010-04-29)
60. Re: Timed tracks (from ian@hixie.ch on 2010-04-22)
61. Re: Timed tracks (from geoff_freed@wgbh.org on 2010-04-22)
62. RE: Timed tracks (from Sean.Hayes@microsoft.com on 2010-04-22)
63. Re: Timed tracks (from plh@w3.org on 2010-04-22)
64. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from silviapfeiffer1@gmail.com on 2010-04-20)
65. Minutes of HTML WG meeting, Apr 15 2010 (from Paul.Cotton@microsoft.com on 2010-04-19)
66. {agenda} HTML WG telcon 2010-04-15: Action items, issues, decision policy, task forces, TPAC (from rubys@intertwingly.net on 2010-04-14)
67. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from robert@ocallahan.org on 2010-04-14)
68. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from hsivonen@iki.fi on 2010-04-13)
69. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from silviapfeiffer1@gmail.com on 2010-04-13)
70. RE: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from Sean.Hayes@microsoft.com on 2010-04-12)
71. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from hsivonen@iki.fi on 2010-04-12)
72. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from mjs@apple.com on 2010-04-12)
73. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from joedwil@earthlink.net on 2010-04-12)
74. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from joedwil@earthlink.net on 2010-04-12)
75. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from annevk@opera.com on 2010-04-12)
76. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from joedwil@earthlink.net on 2010-04-12)
77. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from annevk@opera.com on 2010-04-12)
78. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from joedwil@earthlink.net on 2010-04-12)
79. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from annevk@opera.com on 2010-04-12)
80. RE: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from Sean.Hayes@microsoft.com on 2010-04-12)
81. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from silviapfeiffer1@gmail.com on 2010-04-12)
82. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from silviapfeiffer1@gmail.com on 2010-04-12)
83. Re: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from joedwil@earthlink.net on 2010-04-11)
84. RE: Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from Sean.Hayes@microsoft.com on 2010-04-11)
85. Change Proposals toward Issue-9: 'how accessibility works for <video> is unclear' (from silviapfeiffer1@gmail.com on 2010-04-10)
86. Minutes of HTML WG meeting, Apr 8 2010 (from Paul.Cotton@microsoft.com on 2010-04-08)
87. {agenda} HTML WG telcon 2010-04-08: calls for proposals, issue status (from mjs@apple.com on 2010-04-07)
88. Re: new dates for issue items based on today's HTML WG teleconference (from silviapfeiffer1@gmail.com on 2010-04-05)
89. Re: new dates for issue items based on today's HTML WG teleconference (from silviapfeiffer1@gmail.com on 2010-04-05)
90. Re: new dates for issue items based on today's HTML WG teleconference (from mjs@apple.com on 2010-04-04)
91. Re: new dates for issue items based on today's HTML WG teleconference (from mjs@apple.com on 2010-04-04)
92. [minutes] 20100325 HTML teleconference (from plh@w3.org on 2010-03-30)
93. Re: {agenda} HTML WG telcon 2010-03-25: decision policy, issue status, updates from meetings, task force reports (from mjs@apple.com on 2010-03-24)
94. {agenda} HTML WG telcon 2010-03-25: decision policy, issue status, updates from meetings, task force reports (from rubys@intertwingly.net on 2010-03-24)
95. Re: Breakdown of issues (from rubys@intertwingly.net on 2010-03-12)
96. Breakdown of issues (from mjs@apple.com on 2010-03-12)
97. Re: {agenda} HTML WG telcon 2010-03-11: decision policy, proposals, task forces (from singer@apple.com on 2010-03-11)
98. {agenda} HTML WG telcon 2010-03-11: decision policy, proposals, task forces (from rubys@intertwingly.net on 2010-03-10)
99. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from laura.lee.carlson@gmail.com on 2010-03-06)
100. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from silviapfeiffer1@gmail.com on 2010-03-05)
101. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from mjs@apple.com on 2010-03-04)
102. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from rubys@intertwingly.net on 2010-03-04)
103. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from laura.lee.carlson@gmail.com on 2010-03-04)
104. [minutes] HTML WG 2010004 (from plh@w3.org on 2010-03-04)
105. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from mjs@apple.com on 2010-03-04)
106. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from shelleypowers@burningbird.net on 2010-03-04)
107. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from laura.lee.carlson@gmail.com on 2010-03-04)
108. RE: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from Paul.Cotton@microsoft.com on 2010-03-04)
109. Re: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from laura.lee.carlson@gmail.com on 2010-03-04)
110. RE: Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from Paul.Cotton@microsoft.com on 2010-03-04)
111. Closing issues. Setting and meeting deadlines. (was Re: Issue-9 (video-accessibility): Chairs Solicit Proposals) (from laura.lee.carlson@gmail.com on 2010-03-04)
112. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from silviapfeiffer1@gmail.com on 2010-03-04)
113. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from mjs@apple.com on 2010-03-04)
114. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from silviapfeiffer1@gmail.com on 2010-03-04)
115. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from rubys@intertwingly.net on 2010-03-03)
116. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from ian@hixie.ch on 2010-03-03)
117. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from laura.lee.carlson@gmail.com on 2010-03-03)
118. RE: Issue-9 (video-accessibility): Chairs Solicit Proposals (from jfoliot@stanford.edu on 2010-03-03)
119. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from rubys@intertwingly.net on 2010-03-03)
120. {agenda} HTML WG telcon 2010-03-04: actions, publications, decision policy, issues (from Paul.Cotton@microsoft.com on 2010-03-03)
121. {agenda} HTML WG telcon 2010-03-04: actions, publications, decision policy, issues (from Paul.Cotton@microsoft.com on 2010-03-03)
122. RE: Issue-9 (video-accessibility): Chairs Solicit Proposals (from jfoliot@stanford.edu on 2010-03-03)
123. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from laura.lee.carlson@gmail.com on 2010-03-03)
124. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from mattmay@adobe.com on 2010-03-03)
125. Re: Issue-9 (video-accessibility): Chairs Solicit Proposals (from singer@apple.com on 2010-03-03)
126. Issue-9 (video-accessibility): Chairs Solicit Proposals (from rubys@intertwingly.net on 2010-03-03)
127. Re: clarification on Adobe Blocking (from mjs@apple.com on 2010-02-12)
128. ISSUE-96 progress - Call for Change Proposals (from Paul.Cotton@microsoft.com on 2010-01-26)
129. Re: Topics for 'Video' Breakout Group (from silviapfeiffer1@gmail.com on 2009-11-06)
130. Re: Topics for 'Video' Breakout Group (from laura.lee.carlson@gmail.com on 2009-11-06)
131. Re: Topics for 'Video' Breakout Group (from silviapfeiffer1@gmail.com on 2009-11-05)
132. Topics for 'Video' Breakout Group (from silviapfeiffer1@gmail.com on 2009-11-05)
133. [Bug 5758] insufficient accessibility fallback for <audio> or <video> (from bugzilla@wiggum.w3.org on 2009-11-03)
134. minutes for 2009-09-03 telcon (from mike@w3.org on 2009-09-05)
135. Agenda for HTML WG telcon 2009-08-20 - Accessibility TF, HTML5 Test Suite, etc (from mjs@apple.com on 2009-09-01)
136. Re: ISSUE-9: video-synchronization - suggest closing on 2009-08-27 - param (from mjs@apple.com on 2009-08-28)
137. Re: ISSUE-9: video-synchronization - suggest closing on 2009-08-27 - param (from joedwil@earthlink.net on 2009-08-28)
138. {minutes} HTML WG telcon 2009-08-27 (from annevk@opera.com on 2009-08-27)
139. {agenda} HTML WG telcon 2009-08-27 *PLEASE-READ* (from rubys@intertwingly.net on 2009-08-26)
140. Re: ISSUE-9: video-synchronization - suggest closing on 2009-08-27 (from joedwil@earthlink.net on 2009-08-25)
141. Re: ISSUE-9: video-synchronization - suggest closing on 2009-08-27 (from mjs@apple.com on 2009-08-24)
142. Re: ISSUE-9: video-synchronization - suggest closing on 2009-08-27 (from joedwil@earthlink.net on 2009-08-24)
143. Re: ISSUE-9: video-synchronization - suggest closing on 2009-08-27 (from mjs@apple.com on 2009-08-24)
144. Re: Spec with issue markers [was: Re: HTML5-warnings - request to publish as next heartbeat WD] (from rubys@intertwingly.net on 2009-08-24)
145. Re: ISSUE-9: video-synchronization - suggest closing on 2009-08-27 (from connolly@w3.org on 2009-08-24)
146. ISSUE-9: video-synchronization - suggest closing on 2009-08-27 (from mjs@apple.com on 2009-08-23)
147. State of HTML WG Unresolved Issues (from mjs@apple.com on 2009-08-20)
148. Issues closed (from mjs@apple.com on 2009-08-20)
149. {agenda} HTML WG telcon 2009-08-20 (from rubys@intertwingly.net on 2009-08-19)
150. Old issues - will be closed on 2009-08-20 if there are no objections (from mjs@apple.com on 2009-08-13)
151. ISSUE-9: video-synchronization - suggest closing on 2009-08-20 (from mjs@apple.com on 2009-08-13)
152. Re: {agenda} HTML WG telcon 2009-08-13 (from cooper@w3.org on 2009-08-12)
153. Re: {agenda} HTML WG telcon 2009-08-13 (from singer@apple.com on 2009-08-12)
154. {agenda} HTML WG telcon 2009-08-13 (from rubys@intertwingly.net on 2009-08-12)
155. Regarding closing issues (from mjs@apple.com on 2009-08-11)
156. ISSUE-9: suggest closing (from mjs@apple.com on 2009-08-10)
157. {minutes} HTML WG issue-tracking telcon 2008-06-19 (from mike@w3.org on 2008-06-25)
158. ISSUE-9 (video-synchronization): how synchronization works for <video> is unclear [HTML 5 spec] (from sysbot+tracker@w3.org on 2007-11-08)

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