83 lines
2.5 KiB
Plaintext
83 lines
2.5 KiB
Plaintext
sub init()
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m.top.observeField("url", "fetchCaption")
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m.top.currentCaption = []
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m.top.currentPos = 0
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m.captionTimer = m.top.findNode("captionTimer")
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m.captionTimer.ObserveField("fire", "updateCaption")
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m.captionList = []
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m.reader = createObject("roUrlTransfer")
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m.font = CreateObject("roSGNode", "Font")
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m.font.uri = "pkg:/components/fonts/noto.otf"
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m.font.size = 50
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' m.font = "font:LargeSystemFont"
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end sub
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sub fetchCaption()
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re = CreateObject("roRegex", "(http.*?\.vtt)", "s")
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url = re.match(m.top.url)[0]
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if url <> invalid then
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m.reader.setUrl(url)
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text = m.reader.GetToString()
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m.captionList = parseVTT(text)
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m.captionTimer.control = "start"
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else
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m.captionTimer.control = "stop"
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end if
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end sub
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sub updateCaption ()
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' Stop updating captions if the video isn't playing
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if m.top.playerState = "playing" then
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m.top.currentPos = m.top.currentPos + 100
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tmp = []
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for each entry in m.captionList
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if entry["start"] <= m.top.currentPos and m.top.currentPos <= entry["end"] then
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label = CreateObject("roSGNode", "Label")
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label.text = entry["text"]
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label.font = m.font
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tmp.push(label)
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end if
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end for
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m.top.currentCaption = tmp
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end if
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' end if
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end sub
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function ms(t) as integer
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r = CreateObject("roRegex", ":|\.", "")
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l = r.split(t)
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return 3600000 * val(l[0]) + 60000 * val(l[1]) + 1000 * val(l[2]) + val(l[3])
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end function
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function splitLines(text)
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r = CreateObject("roRegex", chr(10), "")
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return r.split(text)
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end function
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function strip(text) as string
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leading = CreateObject("roRegex", "^\s+", "")
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trailing = CreateObject("roRegex", "\s+$", "")
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text = leading.replaceall(text, "")
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text = trailing.replaceall(text, "")
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return text
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end function
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function parseVTT(text)
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timestamp = "(\d\d:\d\d:\d\d\.\d\d\d) --> (\d\d:\d\d:\d\d\.\d\d\d)"
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re = CreateObject("roRegex", timestamp + " region.*", "")
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timeList = re.matchall (text)
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textList = re.split(text)
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textList.shift()
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captionList = []
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for i = 0 to textList.count() - 1
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textLines = splitLines(strip (textList[i]))
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for each line in textLines
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entry = { "start": ms(timeList[i][1]), "end": ms(timeList[i][2]), "text": strip(line), "color": "" }
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captionList.push(entry)
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end for
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end for
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return captionList
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end function |