Regression failure for captions after firmware update

Archived
1

Our channel was working well before the 8.0 firmware update. We are using side loaded captions (TTML) with DASH mp4 content.

we are settings

content.subtitletracks = [{
language: “en”
trackname: “https://path-to-ttml-file.ttml”
}]

I see that they now use the iso639 3 character code so I tried

content.subtitletracks = [{
language: “eng”
trackname: “https://path-to-ttml-file.ttml”
}]

But alas when I turn captions on I don’t see any of them. I also don’t see a list of captions to choose from.

Help a brother out and point out what I am clearly doing wrong.

Nathan

2

Bumping this because there has to be other people sideloading subtitle tracks with MP4 video.

If you have it working please let me know how.

3

I don’t use DASH or TTML. But single MP4 file encoding with SRT still works with firmware 8.0+ (Roku3, 8.0.0 Build 4143-04). There are only a handful of people doing what you’re doing and posting on these forums, you might try messaging some of them or asking partners@roku.com for some guidance.

4

I hear ya there, DRM makes everything 100x harder. Thanks for the advice.

5

@nmaves did you ever find an answer to this question?