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#!/usr/bin/php |
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<?php |
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/** |
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* TTML (XML) to SRT subtitle converter. |
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* Only tested with subs from Akamai player really, but hopefully works on other stuff as well. |
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* Author: Alexander Karlstad |
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*/ |
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/** |
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*Modified to work on TTML files that use the end attribute instead of dur |
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*/ |
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// TTML file to parse |
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$in = $argv[1]; |
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$cont = file_get_contents(utf8_encode($in)); |
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// Replace <br/>'s |
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$cont = str_replace(['<br/>', '<br />'], "\n", $cont); |
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$cont = str_replace(['&'], "&", $cont); |
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$xml = simplexml_load_string($cont); |
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$subs = $xml->body->div->p; |
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$num = 1; |
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foreach ($subs as $i => $sub) { |
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$attrs = $sub->attributes(); |
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$begin = $attrs['begin']; |
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$end = $attrs['end']; |
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// Do we have spans within? Typically for adding bold/italic text. |
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if ($sub->count() > 0) { |
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$text = $sub->asXML(); |
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foreach ($sub->children() as $child) { |
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$child_text = trim($child); |
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$child_attrs = $child->attributes(); |
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$child_style = isset($child_attrs['style']) ? $child_attrs['style'] : ''; |
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$child_xml = $child->asXML(); |
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if ('italic' == $child_style) { |
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$t = "<i>{$child_text}</i>\n"; |
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} |
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else if ('bold' == $child_style) { |
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$t = "<b>{$child_text}</b>\n"; |
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} |
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else { |
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$t = "{$child_text}\n"; |
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} |
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$text = str_replace($child_xml, $t, $text); |
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} |
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// Only allow <b> and <i> for SRT compatibility. Don't mind <u>. |
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$text = strip_tags($text, '<b><i>'); |
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} |
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else { |
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$text = (string) $sub; |
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} |
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$text = trim($text); |
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// remove weird spacings that sometimes come after a newline |
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// due to xml formatting and >1 newlines. |
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$text = preg_replace([',\n+[ ]+,', ',\n+,'], "\n", $text); |
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$timecode = calc_timecode($begin, $end); |
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// Output in Subrip format |
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echo "${num}\n"; |
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echo "${timecode}\n"; |
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echo "${text}\n\n"; |
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$num++; |
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} |
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// Subrip time code handling. God damn. |
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// Written for readability. |
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// Input: $orig - string with original start time from TTML (HH:MM:SS.XXX) |
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// Input: $add - string with original due time from TTML, which will be added onto $orig (HH:MM:SS.XXX) |
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function calc_timecode($orig, $add) { |
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// Split hours, minutes, seconds and ms |
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$orig = preg_split('/[:.,]+/', $orig); |
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$add = preg_split('/[:.,]+/', $add); |
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// A variable for each unit, for readability |
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$o_h = $orig[0]; |
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$o_m = $orig[1]; |
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$o_s = $orig[2]; |
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$o_ms = $orig[3]; |
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// A variable for each unit, for readability |
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$a_h = $add[0]; |
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$a_m = $add[1]; |
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$a_s = $add[2]; |
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$a_ms = $add[3]; |
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/* |
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// Combine them |
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$r_h = $o_h + $a_h; |
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$r_m = $o_m + $a_m; |
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$r_s = $o_s + $a_s; |
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$r_ms = $o_ms + $a_ms; |
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// MS needs to be lt 1000, add to $r_s if gt 1000. |
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if (1000 <= $r_ms) { |
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$r_s += floor($r_ms/1000); |
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$r_ms = $r_ms%1000; |
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} |
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// S needs to be lt 60, add to $r_m if gt 60. |
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if (60 <= $r_s) { |
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$r_m += floor($r_s/60); |
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$r_s = $r_s%60; |
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} |
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// M needs to be lt 60, add to $r_h if gt 60. |
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if (60 <= $r_m) { |
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$r_h += floor($r_m/60); |
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$r_m = $r_m%60; |
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} |
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$r_h = ($r_h < 10) ? "0" . $r_h : $r_h; |
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$r_m = ($r_m < 10) ? "0" . $r_m : $r_m; |
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$r_s = ($r_s < 10) ? "0" . $r_s : $r_s; |
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$r_ms = (2 == strlen($r_ms)) ? "0" . $r_ms : ((1 == strlen($r_ms)) ? "00" . $r_ms : $r_ms); |
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*/ |
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$o = "{$o_h}:{$o_m}:{$o_s},{$o_ms}"; |
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$r = "{$a_h}:{$a_m}:{$a_s},{$a_ms}"; |
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return "{$o} --> {$r}"; |
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} |
