Roku Developer Program

Developers and content creators—a complete solution for growing an audience directly.
cancel
Showing results for 
Search instead for 
Did you mean: 

subtitle vtt issues

Hi 

I've implemented the closed caption support using WEBVTT format as the source for the subtitles.
The subtitles display fine, including the positioning, however neither the colour or any html entities (&ltSmiley Wink within the text are displayed.

A snippet of the vtt file is as follows:

WEBVTT

NOTE: MatID = 56966001001001   Title = ************               
NOTE Created by .sng webVTT Encoder module WriteVTT v2016_10_28-1


1
00:00:02.000 --> 00:00:07.000 line:77%  position:50% align:middle
<c.white>This programme contains strong</c>
<c.white>language and adult humour.</c>

Can anyone explain if this format is supported by Roku?

Regards

Andy Smith
0 Kudos
5 Replies
Roku Employee
Roku Employee

Re: subtitle vtt issues

As of 8.1, the only HTML tags that are handled by the WebVTT parser are <b>, <i>, and <u>. The HTML entities for amp, lt, and gt are all parsed and should result in the correct character showing up in the subtitle output, but there may be a bug here.
0 Kudos
SECHIN_SUNNY
Level 7

Re: subtitle vtt issues

Hi , can you please tell me on how to make changes in closedCaptions by changing the background , text color etc .Have tried using  
m.videoPlayer.captionStyle={"Text color":"Yellow"}
but there is no change 

Please suggest what should i do .
Thanks in advance
Thanks
Regards
Sechin Sunny
0 Kudos

Re: subtitle vtt issues

"RokuBen" wrote:
As of 8.1, the only HTML tags that are handled by the WebVTT parser are <b>, <i>, and <u>. The HTML entities for amp, lt, and gt are all parsed and should result in the correct character showing up in the subtitle output, but there may be a bug here.

Thanks for this. I am certainly not seeing the &lt; entity.

So for example the following embedded tag in the vtt file will not be recognised by the Roku parser : <c.yellow> ? Is there no way of including the style yellow?
0 Kudos
Roku Employee
Roku Employee

Re: subtitle vtt issues

At the moment, there's no way to specify color information in a WebVTT file.
0 Kudos

Re: subtitle vtt issues

"RokuBen" wrote:
At the moment, there's no way to specify color information in a WebVTT file.

Thanks for the info.
0 Kudos