FFmpeg4/tests/ref/fate/sub-webvttenc

WEBVTT

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Don't show this text it may be used to insert hidden data

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SubRip subtitles capability tester 1.3o by ale5000
<b><i>Use VLC 1.1 or higher as reference for most things and MPC Home Cinema for others</i></b>
This text should be blue
This text should be red
This text should be black
If you see this with the normal font, the player don't (fully) support font face

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Hidden

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This text should be small
This text should be normal
This text should be big

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This should be an E with an accent: È
日本語
<b><i><u>This text should be bold, italics and underline</u></i></b>
This text should be small and green
This text should be small and red
This text should be big and brown

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<b>This line should be bold</b>
<i>This line should be italics</i>
<u>This line should be underline</u>
This line should be strikethrough
<u>Both lines
should be underline</u>

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>
It would be a good thing to
hide invalid html tags that are closed and show the text in them
but show un-closed invalid html tags
Show not opened tags
<

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and also
hide invalid html tags with parameters that are closed and show the text in them
but show un-closed invalid html tags
<u>This text should be showed underlined without problems also: 2<3,5>1,4<6</u>
This shouldn't be underlined

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This text should be in the normal position...

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This text should NOT be in the normal position

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Implementation is the same of the ASS tag
This text should be at the
top and horizontally centered

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This text should be at the
middle and horizontally centered

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This text should be at the
bottom and horizontally centered

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This text should be at the
top and horizontally at the left

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This text should be at the
middle and horizontally at the left
(The second position must be ignored)

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This text should be at the
bottom and horizontally at the left

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This text should be at the
top and horizontally at the right

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This text should be at the
middle and horizontally at the right

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This text should be at the
bottom and horizontally at the right

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This could be the most difficult thing to implement

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First text

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Second, it shouldn't overlap first

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Third, it should replace second

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Fourth, it shouldn't overlap first and third

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Fifth, it should replace third

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Sixth, it shouldn't be
showed overlapped

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TEXT 1 (bottom)

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text 2

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Hide these tags:
also hide these tags:
but show this: {normal text}

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\ N is a forced line break
\ h is a hard space
Normal spaces at the start and at the end of the line are trimmed while hard spaces are not trimmed.
The\hline\hwill\hnever\hbreak\hautomatically\hright\hbefore\hor\hafter\ha\hhard\hspace.\h:-D

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\h\h\h\h\hA (05 hard spaces followed by a letter)
A (Normal  spaces followed by a letter)
A (No hard spaces followed by a letter)

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\h\h\h\h\hA (05 hard spaces followed by a letter)
A (Normal  spaces followed by a letter)
A (No hard spaces followed by a letter)
Show this: \TEST and this: \-)

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A letter followed by 05 hard spaces: A\h\h\h\h\h
A letter followed by normal  spaces: A
A letter followed by no hard spaces: A
05 hard  spaces between letters: A\h\h\h\h\hA
5 normal spaces between letters: A     A

^--Forced line break

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Both line should be strikethrough,
yes.
Correctly closed tags
should be hidden.

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It shouldn't be strikethrough,
not opened tag showed as text.
Not opened tag showed as text.

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Three lines should be strikethrough,
yes.
Not closed tags showed as text

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Both line should be strikethrough but
the wrong closing tag should be showed