- From: Rob Smith via GitHub <sysbot+gh@w3.org>
- Date: Wed, 19 Sep 2018 11:21:24 +0000
- To: public-sdwig@w3.org
I agree. It would be a natural progression for WebVMT to become a metadata format for WebVTT. There are currently three key differences from WebVTT: 1. The cue end time has been made optional so cues can persist to the end of the file, which may be at an unknown time in the case of a stream. This isn't a common use case for subtitles, but is for map annotations. A possible WebVTT media container use case would be adding a logo to a video, in a similar way to channel logos on YouTube. 1. The `TIMELINE` block is also applicable to WebVTT, though perhaps less obvious. It could be used to search a video archive for a clip by keyword, either in subtitles or as a metadata category, and return video for the duration of the cue, c.f. search by location. Renaming this block to `MEDIA` may be a better choice. 1. The `MAP` block is simply a metadata initialisation mechanism which mirrors the `STYLE` block approach by preceding the first cue. This could be renamed `INITIAL-METADATA` with properties called `map-center` and `map-zoom-radius` to include more general cases. In addition, the format could spawn an XML version for 'less-webby' applications, akin to [TTML](https://www.w3.org/TR/ttml1/). -- GitHub Notification of comment by rjksmith Please view or discuss this issue at https://github.com/w3c/sdw/issues/1064#issuecomment-422763591 using your GitHub account
Received on Wednesday, 19 September 2018 11:21:25 UTC