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https://github.com/SubtitleEdit/subtitleedit.git
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Hopefully fixed codepage in the ebu text reading method
git-svn-id: https://subtitleedit.googlecode.com/svn/trunk@53 99eadd0c-20b8-1223-b5c4-2a2b2df33de2
This commit is contained in:
niksedk
parent
091b58f8f6
commit
4d9096656c
@ -1,8 +1,6 @@
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using System;
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using System.Collections.Generic;
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using System.Text;
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using System.Text.RegularExpressions;
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using System.Collections.Generic;
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using System.IO;
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using System.Text;
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namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
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{
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@ -174,6 +172,126 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
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return header;
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}
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/// <summary>
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/// Get text with regard code page from header
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/// </summary>
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/// <param name="skipNext">Skip next character</param>
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/// <param name="header">EBU header</param>
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/// <param name="buffer">data buffer</param>
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/// <param name="index">index to current byte in buffer</param>
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/// <returns>Character at index</returns>
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private string GetCharacter(out bool skipNext, EbuGeneralSubtitleInformation header, byte[] buffer, int index)
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{
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skipNext = false;
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if (header.CharacterCodeTableNumber == "00")
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{
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//note that 0xC1—0xCF combines characters - http://en.wikipedia.org/wiki/ISO/IEC_6937
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Encoding encoding = Encoding.GetEncoding(20269);
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string next = encoding.GetString(buffer, index + 1, 1);
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switch (buffer[index])
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{
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case 0xc1:
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skipNext = "aeiou".Contains(next.ToLower());
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switch (next)
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{
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case "a": return "à";
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case "e": return "è";
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case "i": return "ì";
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case "o": return "ò";
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case "u": return "ù";
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case "A": return "À";
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case "E": return "È";
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case "I": return "Ì";
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case "O": return "Ò";
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case "U": return "Ù";
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}
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return string.Empty;
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case 0xc2:
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skipNext = "aeiou".Contains(next.ToLower());
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switch (next)
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{
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case "a": return "á";
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case "e": return "é";
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case "i": return "í";
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case "o": return "ó";
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case "u": return "ú";
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case "A": return "Á";
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case "E": return "É";
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case "I": return "Í";
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case "O": return "Ó";
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case "U": return "Ú";
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}
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return string.Empty;
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case 0xc3:
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skipNext = "aeiou".Contains(next.ToLower());
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switch (next)
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{
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case "a": return "â";
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case "e": return "ê";
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case "i": return "î";
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case "o": return "ô";
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case "u": return "û";
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case "A": return "Â";
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case "E": return "Ê";
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case "I": return "Î";
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case "O": return "Ô";
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case "U": return "Û";
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}
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return string.Empty;
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case 0xc4:
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skipNext = "ao".Contains(next.ToLower());
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switch (next)
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{
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case "a": return "ã";
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case "o": return "õ";
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case "A": return "Ã";
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case "E": return "Õ";
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}
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return string.Empty;
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case 0xc8:
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skipNext = "aeiou".Contains(next.ToLower());
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switch (next)
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{
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case "a": return "ä";
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case "e": return "ë";
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case "i": return "ï";
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case "o": return "ö";
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case "u": return "ü";
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case "A": return "Ä";
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case "E": return "Ë";
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case "I": return "Ï";
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case "O": return "Ö";
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case "U": return "Ü";
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}
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return string.Empty;
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default:
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return encoding.GetString(buffer, index, 1);
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}
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}
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else if (header.CharacterCodeTableNumber == "01") // Latin/Cyrillic alphabet - from ISO 8859/5-1988
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{
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Encoding encoding = Encoding.GetEncoding("ISO-8859-5");
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return encoding.GetString(buffer, index, 1);
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}
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else if (header.CharacterCodeTableNumber == "02") // Latin/Arabic alphabet - from ISO 8859/6-1987
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{
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Encoding encoding = Encoding.GetEncoding("ISO-8859-6");
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return encoding.GetString(buffer, index, 1);
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}
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else if (header.CharacterCodeTableNumber == "03") // Latin/Greek alphabet - from ISO 8859/7-1987
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{
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Encoding encoding = Encoding.GetEncoding("ISO-8859-7"); // or ISO-8859-1 ?
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return encoding.GetString(buffer, index, 1);
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}
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else if (header.CharacterCodeTableNumber == "04") // Latin/Hebrew alphabet - from ISO 8859/8-1988
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{
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Encoding encoding = Encoding.GetEncoding("ISO-8859-8");
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return encoding.GetString(buffer, index, 1);
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}
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return string.Empty;
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}
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private IEnumerable<EbuTextTimingInformation> ReadTTI(byte[] buffer, EbuGeneralSubtitleInformation header)
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{
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const int StartOfTTI = 1024;
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@ -185,18 +303,6 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
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const byte UnderlineOn = 0x82;
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const byte UnderlineOff = 0x83;
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Encoding encoding = Encoding.Default;
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//try
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//{
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// if (header.CharacterCodeTableNumber == "00")
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// encoding = Encoding.GetEncoding("ISO-8859-1");
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// else
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// encoding = Encoding.GetEncoding(int.Parse(header.CodePageNumber));
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//}
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//catch
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//{
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// // will fall-back to default encoding
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//}
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List<EbuTextTimingInformation> list = new List<EbuTextTimingInformation>();
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int index = StartOfTTI;
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while (index + TTISize < buffer.Length)
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@ -214,26 +320,32 @@ namespace Nikse.SubtitleEdit.Logic.SubtitleFormats
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tti.TimeCodeOutMilliseconds = (int)(1000 / (header.FrameRate / buffer[index + 9 + 3]));
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tti.CommentFlag = buffer[index + 15];
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// text
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// build text
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bool skipNext = false;
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StringBuilder sb = new StringBuilder();
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for (int i = 0; i < 112; i++)
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{
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if (buffer[index + 16 + i] == TextFieldCRLF)
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sb.AppendLine();
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else if (buffer[index + 16 + i] == ItalicsOn)
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sb.Append("<i>");
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else if (buffer[index + 16 + i] == ItalicsOff)
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sb.Append("</i>");
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else if (buffer[index + 16 + i] == UnderlineOn)
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sb.Append("<u>");
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else if (buffer[index + 16 + i] == UnderlineOff)
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sb.Append("</u>");
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else if (buffer[index + 16 + i] == TextFieldTerminator)
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break;
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else if (buffer[index + 16 + i] >= 0x20 && buffer[index + 16 + i] <= 0x7F)
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sb.Append(encoding.GetString(buffer, index+16+i, 1));
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else if (buffer[index + 16 + i] >= 0xA1)
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sb.Append(encoding.GetString(buffer, index+16+i, 1));
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if (skipNext)
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{
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skipNext = false;
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}
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else
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{
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if (buffer[index + 16 + i] == TextFieldCRLF)
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sb.AppendLine();
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else if (buffer[index + 16 + i] == ItalicsOn)
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sb.Append("<i>");
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else if (buffer[index + 16 + i] == ItalicsOff)
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sb.Append("</i>");
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else if (buffer[index + 16 + i] == UnderlineOn)
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sb.Append("<u>");
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else if (buffer[index + 16 + i] == UnderlineOff)
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sb.Append("</u>");
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else if (buffer[index + 16 + i] == TextFieldTerminator)
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break;
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else if ((buffer[index + 16 + i] >= 0x20 && buffer[index + 16 + i] <= 0x7F) || buffer[index + 16 + i] >= 0xA1)
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sb.Append(GetCharacter(out skipNext, header, buffer, index + 16 + i));
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}
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}
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tti.TextField = sb.ToString();
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