AviUtlのエキスポートファイルから字幕ファイル(srt)ファイルを作成するためのコード

exo2srt.py

#!/usr/bin/env python3
# coding: utf-8
#
# See https://pandanote.info/?p=29 for details.
#

import io
import sys
import re
import codecs
from struct import *

class AviUtlElement:
	"""AviUtlの中でテキストに関連する要素を格納するクラス"""
	def __init__(self):
		self.start = 0
		self.end = 0
		self.text = "";

	def setTextAsUtf8(self,s):
		ss = len(s)
		self.text = ""
		for x in range(0,ss-1,4):
			# print str(x)+","+s[x:x+4]
			c = int(s[x:x+2],16)+int(s[x+2:x+4],16)*256
			if c == 0: break
			self.text += chr(c)
		self.text = re.sub(r"\r?\n","",self.text);
		#print b

def formatForSrt(s):
	sec = float(s%1800)/30
	hm = s/1800
	h = int(hm/60)
	m = int(hm%60)
	return re.sub(r"\.",",","{0:02d}:{1:02d}:{2:06.3f}".format(h,m,sec));

# 標準入力，標準出力，標準エラー出力の文字コードを変更する．
sys.stdin = io.TextIOWrapper(sys.stdin.buffer,encoding='cp932')

lines = sys.stdin.readlines()
sid = 0
element = {}
start_ = 0
end_ = 0
text = ""

for line in lines:
	m = re.match(r"\[([0-9]+)\]",line)
	if m:
		sid = int(m.group(1))
	else:
		mm = re.search(u'_name=テキスト',line)
		if mm:
			#print("element[" +sid+"]")
			element[sid] = AviUtlElement()
			element[sid].start = start_
			element[sid].end = end_
		else:
			m3 = re.match(r"text=(.+)",line)
			if m3:
				#print("text:" +sid)
				element[sid].setTextAsUtf8(m3.group(1))
			else:
				m4 = re.match(r"(start|end)=(\d+)",line)
				if m4:
					if m4.group(1) == "start":
						start_ = m4.group(2)
					elif m4.group(1) == "end":
						end_ = m4.group(2)

pos = 1
for k,v in sorted(element.items()):
	print (pos,"\r")
	print (formatForSrt(int(v.start)-1)," --> ",formatForSrt(int(v.end)),"\r\n",v.text,"\r")
	#print (k,v.start,",",v.end)
	print ("\r")
	pos+=1