WebVTT thumbnail/trickplay support
Open
@icbaker is already working on this.
Since Aug 11, 2025.
enhancement
- Dominant language
- Java
- Stars
- 3k
- Forks
- 955
- Avg merge
- 12d 14h
- Merged PRs (30d)
- 2
Description
It is common for a WebVTT file to accompany a manifest which includes references to locations on a sprite sheet. These can be used for thumbnails in the seekbar (trickplay) like so
WEBVTT
00:00:00.000 --> 00:00:05.000
f08e80da-bf1d-4e3d-8899-f0f6155f6efa.jpg#xywh=0,0,120,67
00:00:05.000 --> 00:00:10.000
f08e80da-bf1d-4e3d-8899-f0f6155f6efa.jpg#xywh=120,0,120,67
--
Does Media3 provide any support in the parsing of this VTT file and the transformation into a small image given a playback position?
Thank you
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Assessment
This issue has not been assessed yet.