Movie text tracks

Paul Dupuis paul at
Tue May 17 16:32:32 EDT 2022

This is not any sort of immediate help, but a quick Google search 
suggests that both AVF (Apple Video Foundation) and MMF (Microsoft Media 
Foundation - the underlying framework for the player in Livecode 10) 
support classes and APIs to access multiple media tracks and metadata. I 
don't know about Mobil player support (or Linux), but now is the time 
while Livecode 10 is in developer preview stages to lobby Livecode Ltd 
to broaden the player object to support more cross-platform features. I 
suggest opening an enhancement request at 
for text track access (subtitles are an accessibility requirement on 
lots of media these days) for LC 10.

On 5/17/2022 1:28 PM, Devin Asay via use-livecode wrote:
> Hi all,
> I’m resurrecting some QuickTime movies from years ago, and some of them have text tracks. (Remember those?)
> In the LC player object you can still see that there is a text track with `put the tracks of player 1`. But there doesn’t seem to be a way anymore to show text tracks, either in the player object or in QT Player. All of the hits I get on the topic in a DuckDuckGo search are 15 - 20 years old.
> Anybody know how to show, or at least recover, old text tracks from video files?
> (Man I hate it when the technology gets *less* capable!)
> - Devin
> Devin Asay
> Office of Digital Humanities
> Brigham Young University
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