http://demo.jwplayer.com/text-tracks/captions.html
Jeroen: three things I am interested in 1. preview thumbnails - make it a "kind" 2. chapters - can we put more than just text into chapters 3. how to put track inband into live streams
Proposals:
JW: Native implementation in players in browsers?
JW: lots of players are doing this nowadays
PJ: extracting iframes by browser is somewhat not useful
SP: is the proposal to introduce a new @kind="thumbnails" track?
JW: possibly
PS: anything that goes into a img @src attribute
SP: do we need to do responsive images?
PJ: possibly - eventually
JN: we can easily extract the images from inband easily because we have offsets
JN: let's make sure we introduce a kind="thumbnails" track asap because too many people need/use it
SP: are chapters with thumbnails the same as a thumbnail track?
JW: a thumbnail track will have a higher frequency of images
MD: Should the server just define an API for how to load the images?
JN: you want the images served ahead of time
MD: do ppl use <track> and <video>
JW: smaller companies are starting to really get on the bandwagon
Summary:
JW: there is interest for more rich chapter content; in particular images
JW: we support this functionality where we have small text markers in the timeline
JW: Playlist with a title, text and image
PJ: could we just use a thumbnail track with a chapter track?
PJ: chapters have images that represent them - thumbnail tracks have images that are at that point in time
JN: if you click on the seek bar at a representative image, ideally you want to display the video from the point in time where the image is taken
PJ: I don't know how we deal with this in the browser in a native way
SP: I think we need a single "thumbnails" track that is always active
JW: I'd like to see a thumbnail be part of chapters; descriptive text not so much
Silvia: I think the display that JW has with images, title & descriptive text is a good example for a metadata track - it's displayed outside the video frame anyway
JN: we always display thumbnails with chapter titles
PJ: if it's a real use case, maybe we should extend the spec
SP: should we include thumbnails into chapters?
PJ: le'ts experiment with thumbnail tracks first
JW: how can we transport text tracks in live video?
SP: at one stage we had a proposal to introduce a special "NEXT" keyword for end times; then we can stream e.g. in-band in WebM?
PS: and use blank cues to get breaks
JW: it's a good proposal
PJ: how do we deal with chapters in live streaming?
SP: do they even make sense?
PS: for DVR, yes
JW: workflow - ppl want their content available as fast as possible
PJ: what to do for thumbnails for DVR? What if there is already containers that have in-band thumbnails? We should support that.
JN: I don't know if there is a standardised thumbnail track in MP4?
PJ: it seems weird to put a condensed version of the movie into the movie
MD: is there an action plan for live VTT?
Summary:
Summary: