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🎥 Command line media player
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100local ass_mt = {}ass_mt.__index = ass_mt
local function ass_new() return setmetatable({ scale = 4, text = "" }, ass_mt)end
function ass_mt.new_event(ass) -- osd_libass.c adds an event per line if #ass.text > 0 then ass.text = ass.text .. "\n" endend
function ass_mt.draw_start(ass) ass.text = string.format("%s{\\p%d}", ass.text, ass.scale)end
function ass_mt.draw_stop(ass) ass.text = ass.text .. "{\\p0}"end
function ass_mt.coord(ass, x, y) local scale = 2 ^ (ass.scale - 1) local ix = math.ceil(x * scale) local iy = math.ceil(y * scale) ass.text = string.format("%s %d %d", ass.text, ix, iy)end
function ass_mt.append(ass, s) ass.text = ass.text .. send
function ass_mt.merge(ass1, ass2) ass1.text = ass1.text .. ass2.textend
function ass_mt.pos(ass, x, y) ass:append(string.format("{\\pos(%f,%f)}", x, y))end
function ass_mt.an(ass, an) ass:append(string.format("{\\an%d}", an))end
function ass_mt.move_to(ass, x, y) ass:append(" m") ass:coord(x, y)end
function ass_mt.line_to(ass, x, y) ass:append(" l") ass:coord(x, y)end
function ass_mt.bezier_curve(ass, x1, y1, x2, y2, x3, y3) ass:append(" b") ass:coord(x1, y1) ass:coord(x2, y2) ass:coord(x3, y3)end
function ass_mt.rect_ccw(ass, x0, y0, x1, y1) ass:move_to(x0, y0) ass:line_to(x0, y1) ass:line_to(x1, y1) ass:line_to(x1, y0)end
function ass_mt.rect_cw(ass, x0, y0, x1, y1) ass:move_to(x0, y0) ass:line_to(x1, y0) ass:line_to(x1, y1) ass:line_to(x0, y1)end
function ass_mt.round_rect_cw(ass, x0, y0, x1, y1, r) local c = 0.551915024494 * r -- circle approximation ass:move_to(x0 + r, y0) ass:line_to(x1 - r, y0) -- top line if r > 0 then ass:bezier_curve(x1 - r + c, y0, x1, y0 + r - c, x1, y0 + r) -- top right corner end ass:line_to(x1, y1 - r) -- right line if r > 0 then ass:bezier_curve(x1, y1 - r + c, x1 - r + c, y1, x1 - r, y1) -- bottom right corner end ass:line_to(x0 + r, y1) -- bottom line if r > 0 then ass:bezier_curve(x0 + r - c, y1, x0, y1 - r + c, x0, y1 - r) -- bottom left corner end ass:line_to(x0, y0 + r) -- left line if r > 0 then ass:bezier_curve(x0, y0 + r - c, x0 + r - c, y0, x0 + r, y0) -- top left corner endend
return {ass_new = ass_new}