#------------------------------------------------------------------------------
# $File: subtitle,v 1.2 2022/09/07 11:29:09 christos Exp $
# subtitle:  file(1) magic for subtitles files

# EBU-STL
# https://tech.ebu.ch/docs/tech/tech3264.pdf
3       string  STL             EBU-STL subtitles
>6      regex   =^[0-9][0-9]    \b, rate %s
>>8     string  .01             \b, v1
!:mime  application/x-ebu-stl
>>>16   regex   =^[^\ ]{0,32}   \b, title "%s"
>>>>224 regex   =^[0-9]{2}      \b, created %-.2s
>>>>>&0 regex   =^[0-9]{2}      \b-%-.2s
>>>>>>&0 regex  =^[0-9]{2}      \b-%-.2s
!:ext   stl

# SubRip (srt) subtitles
0       regex/20        =^1[\r\n]+0[01]:[0-9]{2}:[0-9]{2},[0-9]{3}\040-->        SubRip
!:mime  application/x-subrip
!:ext   srt

# WebVTT subtitles
# https://www.w3.org/TR/webvtt1/
0       string/t        WEBVTT
>&0     regex/255       =[0-9]{2}:[0-9]{2}\\.[0-9]{3}\040-->    WebVTT subtitles
!:mime  text/vtt
!:ext   vtt

# XML TTML subtitles
# https://www.w3.org/TR/ttml2/
0       string/t        \<?xml
>20     search/400      \020xmlns=
>>&0 regex ['"]http://www.w3.org/ns/ttml    TTML subtitles
!:mime  application/ttml+xml
# Augment strength to beat plain XML
!:strength * 3
!:ext   ttml

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