pyby
commented
3 years ago Interesting articles explain WebVTT specifications: https://ronallo.com/blog/html5-video-caption-cue-settings-tester/ https://www.speechpad.com/captions/webvtt
From Apple documentation, AVPlayer supports the Cue Settings in WebVTT
Here is an example.
::cue(.red){ color: red; }
::cue(.blue){ color: blue; }
::cue(.green){ color: green; }
::cue(.yellow){ color: yellow; }
::cue(.background-red){ background-color: red; }
::cue(.background-blue){ background-color: blue; }
::cue(.background-green){ background-color: green; }
::cue(.background-yellow){ background-color: yellow; }From French TV broadcaster, France Télévision, The second channel, France 2 livestream is delivered throw HLS with an AES-128 key encryption.
The webvtt subtitles for SDH looks like:
WEBVTT
X-TIMESTAMP-MAP=MPEGTS:7351793473,LOCAL:00:00:00.000
STYLE
::cue(.white) { color: white; }
::cue(.yellow) { color: yellow; }
00:00:00.000 --> 00:00:01.680 align:middle
<c.white> Demander le double </c>
<c.white> de ton cachet. </c>
00:00:02.080 --> 00:00:04.000 align:middle
<c.white> En général, c'est radical. </c>
<c.yellow> -Charlotte. </c>AVPlayer in Safari Mac (opened in a tab) or in iOS applications support it:
For a coloured subtitles integration in SRGMediaPlayer, the stream packager service has to support Cue Settings in WebVTT.
Issue type
Feature request
Description of the problem
A a deaf or hard-of-hearing, I would like to read subtitles, with the adapted colors, if available.
Environment information
Steps to reproduce