forked from mia/Aegisub
63 lines
3.1 KiB
Lua
63 lines
3.1 KiB
Lua
-- Aegisub Automation demonstration script
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-- Original written by Niels Martin Hansen
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-- Given into the public domain
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-- For an explanation of these, see the documentation, or demo 1
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version = 3
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kind = "basic_ass"
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name = "Reading data demonstration"
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description = "This is a demonstration of how to access the various data passed to an Automation script. It loops over the data structures provided, and dumps them to the debug console."
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configuration = {}
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include "karaskel-base.auto3"
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function process_lines(meta, styles, lines, config)
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karaskel.parse_syllable_data(meta, styles, lines)
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-- This makes an alias for the aegisub.output_debug function. Remember that functions are first-class values in Lua.
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-- The 'local' keyword makes the 'out' variable local to this function
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local out = aegisub.output_debug
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-- Use the string.format function to form a string showing some metadata about the subtitles and output it
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out(string.format("Metadata: res_x=%d res_s=%d", meta.res_x, meta.res_y))
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-- The number of styles is stored in index -1, because there might be a style named "n"
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local numstyles = styles[-1]
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out("Number of styles: " .. numstyles)
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-- Loop over the styles with a for loop, printing some info about each style
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for i = 0, numstyles-1 do
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out(string.format("Style %d: name='%s' fontname='%s'", i, styles[i].name, styles[i].fontname))
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end
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-- Do the same, but for the actual subtitle lines
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out("Number of subtitle lines: " .. lines.n)
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for i = 0, lines.n-1 do
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-- Use the report_progress function to show the progress of the loop
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aegisub.report_progress(i/lines.n*100)
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-- Check if the line is a dialogue line, otherwise it won't have much interesting data
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-- Also, the script will crash if you try to access a field that doesn't exist
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if lines[i].kind == "dialogue" then
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-- Again, output some info about the line
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out(string.format("Line %d: dialogue start=%d end=%d style=%s", i, lines[i].start_time, lines[i].end_time, lines[i].style))
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out(" Text: " .. lines[i].text)
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out(" Stripped text: " .. lines[i].text_stripped)
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out(" Number of karaoke syllables: " .. lines[i].karaoke.n)
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-- Also loop over the karaoke syllables, if any, in the line.
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-- Note that there will actually always be at least one syllable, number zero, which is everything before the first \k tag
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for j = 0, lines[i].karaoke.n-1 do
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syl = lines[i].karaoke[j]
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-- Use the aegisub.text_extents function to calculate the rendered size of the syllable text
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-- Note that the styles[lines[i].style] construct can be dangerous, in case the line refers to a non-existant style
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extx, exty, extd, extl = aegisub.text_extents(styles[lines[i].style], syl.text_stripped)
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out(string.format(" Syllable %d: dur=%d kind=%s text='%s' text_stripped='%s' extx=%d exty=%d extd=%d extl=%d", j, syl.duration, syl.kind, syl.text, syl.text_stripped, extx, exty, extd, extl))
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end
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else
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-- For non-dialogue lines, output a lot less info
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out(string.format("Line %d: %s", i, lines[i].kind))
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end
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end
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out("Finished dumping")
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-- In the end, no modifications were done, so just return the original subtitle data
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return lines
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end
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