[Bug 16823] <track> Should cues at time 0 be active when the video loads but before playback? What about when there's a poster frame?

https://www.w3.org/Bugs/Public/show_bug.cgi?id=16823

Silvia Pfeiffer <silviapfeiffer1@gmail.com> changed:

           What    |Removed                     |Added
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             Status|RESOLVED                    |REOPENED
         Resolution|WONTFIX                     |

--- Comment #12 from Silvia Pfeiffer <silviapfeiffer1@gmail.com> 2012-08-23 00:56:40 UTC ---
(In reply to comment #6)
> Subtitles are an alternative representation of an audio track. If someone takes
> a photograph, they don't include subtitles of what was being said while the
> photograph was taken, because there's no audio track with a photograph. A
> video, before it has started playing, is equivalent to a photograph, IMHO. No
> audio has yet played, so it makes no sense that any subtitles should show yet.

I disagree with this premise. A video that has not started playing is not
equivalent to a photograph, but rather to a paused video. A photograph has no
timeline, but a video has. That this timeline happens to be at point 0 when the
video is loaded is irrelevant - it could be at any point, but it is paused,
ready to go again. All the information that is expected to be displayed with
the frame at that point in time needs to be displayed no matter whether the
video is in paused or playing state. This includes captions, subtitles,
chapters, and metadata.

It doesn't apply as much to audio descriptions, because they indeed are more
part of the audio track and would be rendered as the video playback starts. If
the audio descriptions don't have sufficient time to be read out within the
first cue, the video will get paused, but that's ok. So, I don't see Loretta's
point as much.

But I certainly agree that all the visually rendered tracks need to be
displayed as though the video was paused at time 0.

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Received on Thursday, 23 August 2012 00:56:43 UTC