SubtitleEdit/libse/SubtitleFormats/Pac.cs
2015-11-17 12:10:48 +01:00

1801 lines
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C#
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using System;
using System.Collections.Generic;
using System.Globalization;
using System.IO;
using System.Text;
namespace Nikse.SubtitleEdit.Core.SubtitleFormats
{
// The PAC format was developed by Screen Electronics
// The PAC format save the contents, time code, position, justification, and italicization of each subtitle. The choice of font is not saved.
public class Pac : SubtitleFormat
{
public interface IGetPacEncoding
{
int GetPacEncoding(byte[] previewBuffer , string fileName);
}
public static IGetPacEncoding GetPacEncodingImplementation;
public static readonly TimeCode PacNullTime = new TimeCode(655, 35, 00, 0);
public const int CodePageLatin = 0;
public const int CodePageGreek = 1;
public const int CodePageLatinCzech = 2;
public const int CodePageArabic = 3;
public const int CodePageHebrew = 4;
public const int CodePageThai = 5;
public const int CodePageCyrillic = 6;
public const int CodePageChineseTraditional = 7;
public const int CodePageChineseSimplified = 8;
public const int CodePageKorean = 9;
private const int EncodingChineseSimplified = 936;
private const int EncodingChineseTraditional = 950;
private const int EncodingKorean = 949;
/// <summary>
/// Contains Swedish, Danish, German, Spanish, and French letters
/// </summary>
private static readonly List<int> LatinCodes = new List<int> {
0xe041, // Ã
0xe04e, // Ñ
0xe04f, // Õ
0xe061, // ã
0xe06e, // ñ
0xe06f, // õ
0xe161, // å
0xe141, // Å
0x618a, // ā
0x418a, // Ā
0x458a, // Ē
0x658a, // ē
0x498a, // Ī
0x698a, // ī
0x4f8a, // Ō
0x6f8a, // ō
0x558a, // Ū
0x758a, // ū
0x23, // £
0x7c, // æ
0x7d, // ø
0x7e, // §
0x5c, // Æ
0x5d, // Ø
0x5e, // ÷
0x5f, // -
0x2d, //
0xE54f, // Ö
0xE56f, // ö
0xe541, // Ä
0xe561, // ä
0xe555, // Ü
0xe575, // ü
0x81, // ß
0x82, // ²
0xe241, // Á
0xe249, // Í
0xe255, // Ú
0xe259, // Ý
0xe261, // á
0xe265, // é
0xe269, // í
0xe245, // É
0xe275, // ú
0xe279, // ý
0xe361, // à
0xe365, // è
0xe36f, // ò
0xe345, // È
0xe349, // Ì
0xe34f, // Ò
0xe369, // ì
0xe443, // Ĉ
0xe447, // Ĝ
0xe448, // Ĥ
0xe44A, // Ĵ
0xe453, // Ŝ
0xeA55, // Ŭ
0xe463, // ĉ
0xe467, // ĝ
0xe468, // ĥ
0xe46A, // ĵ
0xe473, // ŝ
0xeA75, // ŭ
0xe341, // À
0xe361, // à
0xe441, // Â
0xe461, // â
0xe643, // Ç
0xe663, // ç
0xe445, // Ê
0xe465, // ê
0xe545, // Ë
0xe565, // ë
0xe56f, // ö
0xe449, // Î
0xe469, // î
0xe549, // Ï
0xe569, // ï
0xe44F, // Ô
0xe46F, // ô
0xe355, // Ù
0xe375, // ù
0xe455, // Û
0xe475, // û
0xe559, // Ÿ
0xe579, // ÿ
0xeb41, // Ą
0xeb61, // ą
0xe243, // Ć
0xe263, // ć
0xeB45, // Ę
0xeB65, // ę
0x9c, // Ł
0xbc, // ł
0xe24e, // Ń
0xe26e, // ń
0xe24f, // Ó
0xe26f, // ó
0xe253, // Ś
0xe273, // ś
0xe25a, // Ź
0xe27a, // ź
0xe85a, // Ż
0xe87a, // ż
135, // þ
137, // ð
136, // Þ
140, // Ð
0xe653, // Ş
0xe673, // ş
0xe663, // ç
0x7b, // ı
0xe56f, // ö
0xe575, // ü
0xeA67, // ğ
0xeA47, // Ğ
0xe849, // İ
0xE75A, // Ž
0xE753, // Š
0xE743, // Č
0x8C, // Đ
0xE77A, // ž
0xE773, // š
0xE763, // č
0xAE, // đ
0xA8, // ¿
0xAD, // ¡
0xA6, // ª
0xA7, // º
0xAB, // "«"
0xBB, // "»"
0xB3, // "³"
0x1C, // "“"
0x1D, // "”"
0x18, // ""
0x19, // ""
0x13, // ""
0x14, // "—"
};
private static readonly List<string> LatinLetters = new List<string> {
"Ã",
"Ñ",
"Õ",
"ã",
"ñ",
"õ",
"å",
"Å",
"ā",
"Ā",
"Ē",
"ē",
"Ī",
"ī",
"Ō",
"ō",
"Ū",
"ū",
"£",
"æ",
"ø",
"§",
"Æ",
"Ø",
"÷",
"-",
"",
"Ö",
"ö",
"Ä",
"ä",
"Ü",
"ü",
"ß",
"²",
"Á",
"Í",
"Ú",
"Ý",
"á",
"é",
"í",
"É",
"ú",
"ý",
"à",
"è",
"ò",
"È",
"Ì",
"Ò",
"ì",
"Ĉ",
"Ĝ",
"Ĥ",
"Ĵ",
"Ŝ",
"Ŭ",
"ĉ",
"ĝ",
"ĥ",
"ĵ",
"ŝ",
"ŭ",
"À",
"à",
"Â",
"â",
"Ç",
"ç",
"Ê",
"ê",
"Ë",
"ë",
"ö",
"Î",
"î",
"Ï",
"ï",
"Ô",
"ô",
"Ù",
"ù",
"Û",
"û",
"Ÿ",
"ÿ",
"Ą",
"ą",
"Ć",
"ć",
"Ę",
"ę",
"Ł",
"ł",
"Ń",
"ń",
"Ó",
"ó",
"Ś",
"ś",
"Ź",
"ź",
"Ż",
"ż",
"þ",
"ð",
"Þ",
"Ð",
"Ş", // 0xe653
"ş", // 0xe673
"ç", // 0xe663
"ı", // 0x7b
"ö", // 0xe56f
"ü",
"ğ",
"Ğ",
"İ",
"Ž", // 0xE75A
"Š", // 0xE753
"Č", // 0xE743
"Đ", // 0xE744
"ž", // 0xE77A
"š", // 0xE773
"č", // 0xE763
"đ", // 0xE764
"¿", // 0xA8
"¡", // 0xAD
"ª", // 0xA6
"º", // 0xA7
"«", // 0xAB
"»", // 0xBB
"³", // 0xB3
"“", // 0x1C
"”", // 0x1D
"", // 0x18
"", // 0x19
"", // 0x13
"—", // 0x14
};
private static readonly List<int> HebrewCodes = new List<int>
{
0xa0, // א
0xa1, // ב
0xa2, // ג
0xa3, // ד
0xa4, // ה
0xa5, // ו
0xa6, // ז
0xa7, // ח
0xa8, // ט
0xa9, // י
0xaa, // ך
0xab, // כ
0xac, // ל
0xad, // ם
0xae, // מ
0xaf, // ן
0xb0, // נ
0xb1, // ס
0xb2, // ע
0xb3, // ף
0xb4, // פ
0xb5, // ץ
0xb6, // צ
0xb7, // ק
0xb8, // ר
0xb9, // ש
0xba, // ת
44, // ،
};
private static readonly List<string> HebrewLetters = new List<string>
{
"א", // 0xa0
"ב", // 0xa1
"ג", // 0xa2
"ד", // 0xa3
"ה", // 0xa4
"ו", // 0xa5
"ז", // 0xa6
"ח", // 0xa7
"ט", // 0xa8
"י", // 0xa9
"ך", // 0xaa
"כ", // 0xab
"ל", // 0xac
"ם", // 0xad
"מ", // 0xae
"ן", // 0xaf
"נ", // 0xb0
"ס", // 0xb1
"ע", // 0xb2
"ף", // 0xb3
"פ", // 0xb4
"ץ", // 0xb5
"צ", // 0xb6
"ק", // 0xb7
"ר", // 0xb8
"ש", // 0xb9
"ת", // 0xba
"،", // 44
};
private static readonly List<int> ArabicCodes = new List<int> {
0xe081, //=أ
0xe09b, //=ؤ
0xe09c, //=ئ
0xe09f, //=ي
0xe181, //=إ
0xe281, //=آ
0xe781, //=اً
0x80,
0x81, //=ا
0x82, //=ب
0x83, //=ت
0x84, //=ث
0x85, //=ج
0x86, //=ح
0x87, //=خ
0x88, //=د
0x89, //=ذ
0x8A, //=ر
0x8b, //=ز
0x8c, //=س
0x8d, //=ش
0x8e, //=ص
0x8f, //=ض
0x90, //=ظ
0x91, //=ط
0x92, //=ع
0x93, //=غ
0x94, //=ف
0x95, //=ق
0x96, //=ك
0x97, //=ل
0x98, //=م
0x99, //=ن
0x9A, //=ه
0x9b, //=و
0x9c, //=ى
0x9d, //=ة
0x9f, //=ي
0xa0, //=ء
};
private static readonly List<string> ArabicLetters = new List<string> {
"أ",
"ؤ",
"ئ",
"ي", // 0xe09f
"إ",
"آ",
"اً",
"ـ",
"ا",
"ب",
"ت",
"ث",
"ج",
"ح",
"خ",
"د",
"ذ",
"ر",
"ز",
"س",
"ش",
"ص",
"ض",
"ظ",
"ط",
"ع",
"غ",
"ف",
"ق",
"ك",
"ل",
"م",
"ن",
"ه",
"و",
"ى",
"ة",
"ي",
"ء",
};
private static readonly List<int> CyrillicCodes = new List<int> {
0x20, //space
0x21, //!
0x22, //Э
0x23, // /
0x24, //?
0x25, //:
0x26, //.
0x27, //э
0x28, //(
0x29, //)
0x2b, //+
0x2c, //,
0x2d, //_
0x2e, //ю
0x3a, //Ж
0x3b, //Ж
0x3c, //>
0x41, //Ф
0x42, //И
0x43, //C
0x44, //В
0x45, //У
0x46, //A
0x47, //П
0x48, //Р
0x49, //Ш
0x4a, //О
0x4b, //Л
0x4c, //Д
0x4d, //Ь
0x4e, //Т
0x4f, //Щ
0x50, //З
0x52, //К
0x53, //Ы
0x54, //Е
0x55, //Г
0x56, //М
0x57, //Ц
0x58, //Ч
0x59, //Н
0x5a, //Я
0x5b, //х
0x5d, //ъ
0x5e, //,
0x5f, //-
0x61, //ф
0x62, //и
0x63, //c
0x64, //в
0x65, //у
0x66, //a
0x67, //п
0x68, //p
0x69, //ш
0x6a, //о
0x6b, //л
0x6c, //д
0x6d, //ь
0x6e, //т
0x6f, //щ
0x70, //з
0x72, //к
0x73, //ы
0x74, //e
0x75, //г
0x76, //м
0x77, //ц
0x78, //ч
0x79, //н
0x7a, //я
0x7b, //Х
0x7d, //Ъ
0x80, //Б
0x81, //Ю
0x88, //Ј
0x8a, //Њ
0x8f, //Џ
0x92, //ђ
0x94, //,
0x95, //-
0x96, //і
0x98, //ј
0x99, //љ
0x9a, //њ
0x9b, //ћ
0x9d, //§
0x9f, //џ
0xa2, //%
0xac, //C
0xad, //D
0xae, //E
0xaf, //F
0xb0, //G
0xb1, //H
0xb2, //'
0xb3, //"
0xb4, //I
0xb5, //J
0xb6, //K
0xb7, //L
0xb8, //M
0xb9, //N
0xba, //P
0xbb, //Q
0xbc, //R
0xbd, //S
0xbe, //T
0xbf, //U
0xc0, //V
0xc2, //W
0xc3, //X
0xc4, //Y
0xc5, //Z
0xc6, //b
0xc7, //c
0xc8, //d
0xc9, //e
0xca, //f
0xcb, //g
0xcc, //h
0xcd, //i
0xce, //j
0xcf, //k
0xd0, // (blank)
0xd1, //l
0xd2, //m
0xd3, //n
0xd4, //o
0xd5, //p
0xd6, //q
0xd7, //r
0xd8, //s
0xd9, //t
0xda, //u
0xdb, //v
0xdc, //w
0xdd, //э
0xde, //ю
0xdf, //z
0xe3, //ѐ
0xe065, //ў
0xe574, //ё
0xe252, //Ќ
0xe272, //ќ
0xe275, //ѓ
0xe596, //ї
0x6938, //ш
};
private static readonly List<string> CyrillicLetters = new List<string> {
" ", //0x20
"!", //0x21
"Э", //0x22
"/", //0x23
"?", //0x24
":", //0x25
".", //0x26
"э", //0x27
"(", //0x28
")", //0x29
"+", //0x2b
"б", //",", //0x2c
"_", //0x2d
"ю", //0x2e
"Ж", //0x3a
"Ж", //0x3b
">", //0x3c
"Ф", //0x41
"И", //0x42
"C", //0x43
"B", //0x44
"У", //0x45
"A", //0x46
"П", //0x47
"Р", //0x48
"Ш", //0x49
"О", //0x4a
"Л", //0x4b
"Д", //0x4c
"Ь", //0x4d
"Т", //0x4e
"Щ", //0x4f
"З", //0x50
"К", //0x52
"Ы", //0x53
"Е", //0x54
"Г", //0x55
"М", //0x56
"Ц", //0x57
"Ч", //0x58
"Н", //0x59
"Я", //0x5a
"х", //0x5b
"ъ", //0x5d
",", //0x5e
"-", //0x5f
"ф", //0x61
"и", //0x62
"с", //0x63
"в", //0x64
"у", //0x65
"a", //0x66
"п", //0x67
"p", //0x68
"ш", //0x69
"о", //0x6a
"л", //0x6b
"д", //0x6c
"ь", //0x6d
"т", //0x6e
"щ", //0x6f
"з", //0x70
"к", //0x72
"ы", //0x73
"e", //0x74
"г", //0x75
"м", //0x76
"ц", //0x77
"ч", //0x78
"н", //0x79
"я", //0x7a
"Х", //0x7b
"Ъ", //0x7d
"Б", //0x80
"Ю", //0x81
"Ј", //0x88
"Њ", //0x8a
"Џ", //0x8f
"ђ", //0x92
",", //0x94
"-", //0x95
"і", //0x96
"ј", //0x98
"љ", //0x99
"ћ", //0x9b
"њ", //0x9a
"§", //0x9d
"џ", //0x9f
"%", //0xa2
"C", //0xac
"D", //0xad
"E", //0xae
"F", //0xaf
"G", //0xb0
"H", //0xb1
"'", //0xb2
"\"", //0xb3
"I", //0xb4
"J", //0xb5
"K", //0xb6
"L", //0xb7
"M", //0xb8
"N", //0xb9
"P", //0xba
"Q", //0xbb
"R", //0xbc
"S", //0xbd
"T", //0xbe
"U", //0xbf
"V", //0xc0
"W", //0xc2
"X", //0xc3
"Y", //0xc4
"Z", //0xc5
"b", //0xc6
"c", //0xc7
"d", //0xc8
"e", //0xc9
"f", //0xca
"g", //0xcb
"h", //0xcc
"i", //0xcd
"j", //0xce
"k", //0xcf
"", //0xd0
"l", //0xd1
"m", //0xd2
"n", //0xd3
"o", //0xd4
"p", //0xd5
"q", //0xd6
"r", //0xd7
"s", //0xd8
"t", //0xd9
"u", //0xda
"v", //0xdb
"w", //0xdc
"э", //0xdd
"ю", //0xde
"z", //0xdf
"ѐ", //0xe3
"ў", //0xe065
"ё", //0xe574
"Ќ", //0xe252
"ќ", //0xe272
"ѓ", //0xe275
"ї", //0xe596
"ш", //0x6938
};
private static readonly List<int> KoreanCodes = new List<int> {
0x20, //space
};
private static readonly List<string> KoreanLetters = new List<string> {
" ", //0x20
};
private string _fileName = string.Empty;
private int _codePage = -1;
public int CodePage
{
get
{
return _codePage;
}
set
{
_codePage = value;
}
}
public override string Extension
{
get { return ".pac"; }
}
public const string NameOfFormat = "PAC (Screen Electronics)";
public override string Name
{
get { return NameOfFormat; }
}
public override bool IsTimeBased
{
get { return true; }
}
public void Save(string fileName, Subtitle subtitle)
{
using (var fs = new FileStream(fileName, FileMode.Create, FileAccess.Write))
{
_fileName = fileName;
// header
fs.WriteByte(1);
for (int i = 1; i < 23; i++)
fs.WriteByte(0);
fs.WriteByte(0x60);
// paragraphs
int number = 0;
foreach (Paragraph p in subtitle.Paragraphs)
{
WriteParagraph(fs, p, number, number + 1 == subtitle.Paragraphs.Count);
number++;
}
// footer
fs.WriteByte(0xff);
for (int i = 0; i < 11; i++)
fs.WriteByte(0);
fs.WriteByte(0x11);
fs.WriteByte(0);
byte[] footerBuffer = Encoding.ASCII.GetBytes("dummy end of file");
fs.Write(footerBuffer, 0, footerBuffer.Length);
}
}
private void WriteParagraph(FileStream fs, Paragraph p, int number, bool isLast)
{
WriteTimeCode(fs, p.StartTime);
WriteTimeCode(fs, p.EndTime);
if (_codePage == -1)
GetCodePage(null, 0, 0);
byte alignment = 2; // center
byte verticalAlignment = 0x0a; // bottom
if (!p.Text.Contains(Environment.NewLine))
verticalAlignment = 0x0b;
string text = p.Text;
if (text.StartsWith("{\\an1}", StringComparison.Ordinal) || text.StartsWith("{\\an4}", StringComparison.Ordinal) || text.StartsWith("{\\an7}", StringComparison.Ordinal))
{
alignment = 1; // left
}
else if (text.StartsWith("{\\an3}", StringComparison.Ordinal) || text.StartsWith("{\\an6}", StringComparison.Ordinal) || text.StartsWith("{\\an9}", StringComparison.Ordinal))
{
alignment = 0; // right
}
if (text.StartsWith("{\\an7}", StringComparison.Ordinal) || text.StartsWith("{\\an8}", StringComparison.Ordinal) || text.StartsWith("{\\an9}", StringComparison.Ordinal))
{
verticalAlignment = 0; // top
}
else if (text.StartsWith("{\\an4}", StringComparison.Ordinal) || text.StartsWith("{\\an5}", StringComparison.Ordinal) || text.StartsWith("{\\an6}", StringComparison.Ordinal))
{
verticalAlignment = 5; // center
}
if (text.Length >= 6 && text[0] == '{' && text[5] == '}')
text = text.Remove(0, 6);
text = MakePacItalicsAndRemoveOtherTags(text);
Encoding encoding = GetEncoding(_codePage);
byte[] textBuffer;
if (_codePage == CodePageArabic)
textBuffer = GetArabicBytes(Utilities.FixEnglishTextInRightToLeftLanguage(text, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"), alignment);
else if (_codePage == CodePageHebrew)
textBuffer = GetHebrewBytes(Utilities.FixEnglishTextInRightToLeftLanguage(text, "0123456789abcdefghijklmnopqrstuvwxyz"), alignment);
else if (_codePage == CodePageLatin)
textBuffer = GetLatinBytes(encoding, text, alignment);
else if (_codePage == CodePageCyrillic)
textBuffer = GetCyrillicBytes(text, alignment);
else if (_codePage == CodePageChineseTraditional)
textBuffer = GetW16Bytes(text, alignment, EncodingChineseTraditional);
else if (_codePage == CodePageChineseSimplified)
textBuffer = GetW16Bytes(text, alignment, EncodingChineseSimplified);
else if (_codePage == CodePageKorean)
textBuffer = GetW16Bytes(text, alignment, EncodingKorean);
else if (_codePage == CodePageThai)
textBuffer = encoding.GetBytes(text.Replace("ต", "€"));
else
textBuffer = encoding.GetBytes(text);
// write text length
var length = (UInt16)(textBuffer.Length + 4);
fs.Write(BitConverter.GetBytes(length), 0, 2);
fs.WriteByte(verticalAlignment); // fs.WriteByte(0x0a); // sometimes 0x0b? - this seems to be vertical alignment - 0 to 11
fs.WriteByte(0xfe);
fs.WriteByte(alignment); //2=centered, 1=left aligned, 0=right aligned, 09=Fount2 (large font),
//55=safe area override (too long line), 0A=Fount2 + centered, 06=centered + safe area override
fs.WriteByte(0x03);
fs.Write(textBuffer, 0, textBuffer.Length);
if (!isLast)
{
fs.WriteByte(0);
fs.WriteByte((byte)((number + 1) % 256));
fs.WriteByte((byte)((number + 1) / 256));
fs.WriteByte(0x60);
}
}
internal static string MakePacItalicsAndRemoveOtherTags(string text)
{
text = HtmlUtil.RemoveOpenCloseTags(text, HtmlUtil.TagFont, HtmlUtil.TagUnderline).Trim();
if (!text.Contains("<i>", StringComparison.OrdinalIgnoreCase))
return text;
text = text.Replace("<I>", "<i>");
text = text.Replace("</I>", "</i>");
if (Utilities.CountTagInText(text, "<i>") == 1 && text.StartsWith("<i>") && text.EndsWith("</i>"))
return "<" + HtmlUtil.RemoveHtmlTags(text).Replace(Environment.NewLine, Environment.NewLine + "<");
var sb = new StringBuilder();
var parts = text.SplitToLines();
foreach (string line in parts)
{
string s = line.Trim();
if (Utilities.CountTagInText(s, "<i>") == 1 && s.StartsWith("<i>") && s.EndsWith("</i>"))
{
sb.AppendLine("<" + HtmlUtil.RemoveHtmlTags(s));
}
else
{
s = s.Replace("</i>", "___@___");
s = s.Replace("<i>", "<");
s = s.Replace("___@___", ">");
s = s.Replace(" <", "<");
s = s.Replace("> ", ">");
sb.AppendLine(s);
}
}
return sb.ToString().Trim();
}
internal static void WriteTimeCode(FileStream fs, TimeCode timeCode)
{
// write four bytes time code
string highPart = string.Format("{0:00}", timeCode.Hours) + string.Format("{0:00}", timeCode.Minutes);
byte frames = (byte)MillisecondsToFramesMaxFrameRate(timeCode.Milliseconds);
string lowPart = string.Format("{0:00}", timeCode.Seconds) + string.Format("{0:00}", frames);
int high = int.Parse(highPart);
if (high < 256)
{
fs.WriteByte((byte)high);
fs.WriteByte(0);
}
else
{
fs.WriteByte((byte)(high % 256));
fs.WriteByte((byte)(high / 256));
}
int low = int.Parse(lowPart);
if (low < 256)
{
fs.WriteByte((byte)low);
fs.WriteByte(0);
}
else
{
fs.WriteByte((byte)(low % 256));
fs.WriteByte((byte)(low / 256));
}
}
public override bool IsMine(List<string> lines, string fileName)
{
if (!string.IsNullOrEmpty(fileName) && File.Exists(fileName))
{
try
{
var fi = new FileInfo(fileName);
if (fi.Length > 100 && fi.Length < 1024000) // not too small or too big
{
byte[] buffer = FileUtil.ReadAllBytesShared(fileName);
if (buffer[00] == 1 && // These bytes seems to be PAC files... TODO: Verify!
buffer[01] == 0 &&
buffer[02] == 0 &&
buffer[03] == 0 &&
buffer[04] == 0 &&
buffer[05] == 0 &&
buffer[06] == 0 &&
buffer[07] == 0 &&
buffer[08] == 0 &&
buffer[09] == 0 &&
buffer[10] == 0 &&
buffer[11] == 0 &&
buffer[12] == 0 &&
buffer[13] == 0 &&
buffer[14] == 0 &&
buffer[15] == 0 &&
buffer[16] == 0 &&
buffer[17] == 0 &&
buffer[18] == 0 &&
buffer[19] == 0 &&
buffer[20] == 0 &&
//buffer[21] < 10 && // start from number
//buffer[22] == 0 &&
(buffer[23] >= 0x60 && buffer[23] <= 0x70) &&
fileName.EndsWith(".pac", StringComparison.OrdinalIgnoreCase))
return true;
}
}
catch
{
return false;
}
}
return false;
}
public override string ToText(Subtitle subtitle, string title)
{
return "Not supported!";
}
public override void LoadSubtitle(Subtitle subtitle, List<string> lines, string fileName)
{
_fileName = fileName;
subtitle.Paragraphs.Clear();
subtitle.Header = null;
byte[] buffer = FileUtil.ReadAllBytesShared(fileName);
int index = 0;
while (index < buffer.Length)
{
Paragraph p = GetPacParagraph(ref index, buffer);
if (p != null)
subtitle.Paragraphs.Add(p);
}
subtitle.Renumber();
}
private Paragraph GetPacParagraph(ref int index, byte[] buffer)
{
while (index < 15)
{
index++;
}
while (true)
{
index++;
if (index + 20 >= buffer.Length)
return null;
if (buffer[index] == 0xFE && (buffer[index - 15] == 0x60 || buffer[index - 15] == 0x61))
break;
if (buffer[index] == 0xFE && (buffer[index - 12] == 0x60 || buffer[index - 12] == 0x61))
break;
}
int feIndex = index;
const int endDelimiter = 0x00;
byte alignment = buffer[feIndex + 1];
byte verticalAlignment = buffer[feIndex - 1];
var p = new Paragraph();
int timeStartIndex = feIndex - 15;
if (buffer[timeStartIndex] == 0x60)
{
p.StartTime = GetTimeCode(timeStartIndex + 1, buffer);
p.EndTime = GetTimeCode(timeStartIndex + 5, buffer);
}
else if (buffer[timeStartIndex + 3] == 0x60)
{
timeStartIndex += 3;
p.StartTime = GetTimeCode(timeStartIndex + 1, buffer);
p.EndTime = GetTimeCode(timeStartIndex + 5, buffer);
}
else
{
return null;
}
int textLength = buffer[timeStartIndex + 9] + buffer[timeStartIndex + 10] * 256;
if (textLength > 500)
return null; // probably not correct index
int maxIndex = timeStartIndex + 10 + textLength;
if (_codePage == -1)
GetCodePage(buffer, index, endDelimiter);
var sb = new StringBuilder();
index = feIndex + 3;
bool w16 = buffer[index] == 0x1f && Encoding.ASCII.GetString(buffer, index + 1, 3) == "W16";
if (w16)
index += 5;
while (index < buffer.Length && index <= maxIndex) // buffer[index] != endDelimiter)
{
if (buffer.Length > index + 3 && buffer[index] == 0x1f && Encoding.ASCII.GetString(buffer, index + 1, 3) == "W16")
{
w16 = true;
index += 5;
}
if (w16)
{
if (buffer[index] == 0xFE)
{
sb.AppendLine();
w16 = buffer[index + 3] == 0x1f && Encoding.ASCII.GetString(buffer, index + 4, 3) == "W16";
if (w16)
index += 5;
index += 2;
}
else
{
if (buffer[index] == 0)
{
sb.Append(Encoding.ASCII.GetString(buffer, index + 1, 1));
}
else if (buffer.Length > index + 1)
{
if (_codePage == CodePageChineseSimplified)
{
sb.Append(Encoding.GetEncoding(EncodingChineseSimplified).GetString(buffer, index, 2));
}
else if (_codePage == CodePageKorean)
{
sb.Append(Encoding.GetEncoding(EncodingKorean).GetString(buffer, index, 2));
}
else
{
sb.Append(Encoding.GetEncoding(EncodingChineseTraditional).GetString(buffer, index, 2));
}
}
index++;
}
}
else if (buffer[index] == 0xFF)
{
sb.Append(' ');
}
else if (buffer[index] == 0xFE)
{
sb.AppendLine();
index += 2;
}
else if (_codePage == CodePageLatin)
sb.Append(GetLatinString(GetEncoding(_codePage), buffer, ref index));
else if (_codePage == CodePageArabic)
sb.Append(GetArabicString(buffer, ref index));
else if (_codePage == CodePageHebrew)
sb.Append(GetHebrewString(buffer, ref index));
else if (_codePage == CodePageCyrillic)
sb.Append(GetCyrillicString(buffer, ref index));
else if (_codePage == CodePageThai)
sb.Append(GetEncoding(_codePage).GetString(buffer, index, 1).Replace("€", "ต"));
else
sb.Append(GetEncoding(_codePage).GetString(buffer, index, 1));
index++;
}
if (index + 20 >= buffer.Length)
return null;
p.Text = sb.ToString();
p.Text = p.Text.Replace("\0", string.Empty);
p.Text = FixItalics(p.Text);
if (_codePage == CodePageArabic)
p.Text = Utilities.FixEnglishTextInRightToLeftLanguage(p.Text, "0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ");
if (verticalAlignment < 5)
{
if (alignment == 1) // left
p.Text = "{\\an7}" + p.Text;
else if (alignment == 0) // right
p.Text = "{\\an9}" + p.Text;
else
p.Text = "{\\an8}" + p.Text;
}
else if (verticalAlignment < 9)
{
if (alignment == 1) // left
p.Text = "{\\an4}" + p.Text;
else if (alignment == 0) // right
p.Text = "{\\an6}" + p.Text;
else
p.Text = "{\\an5}" + p.Text;
}
else
{
if (alignment == 1) // left
p.Text = "{\\an1}" + p.Text;
else if (alignment == 0) // right
p.Text = "{\\an3}" + p.Text;
}
p.Text = p.Text.Replace(Convert.ToChar(0).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(1).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(2).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(3).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(4).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(5).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(6).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(7).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(8).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(11).ToString(CultureInfo.InvariantCulture), string.Empty);
p.Text = p.Text.Replace(Convert.ToChar(12).ToString(CultureInfo.InvariantCulture), string.Empty);
return p;
}
/// <summary>
/// Fix italic tags, lines starting with ">" - whole line is italic, words between &lt;&gt; is italic
/// </summary>
private static string FixItalics(string text)
{
int index = text.IndexOf('<');
if (index < 0)
return text;
while (index >= 0 && index < text.Length - 1)
{
text = text.Insert(index + 1, "i>");
int indexOfNewLine = text.IndexOf(Environment.NewLine, index + 3, StringComparison.Ordinal);
int indexOfEnd = text.IndexOf('>', index + 3);
if (indexOfNewLine < 0 && indexOfEnd < 0)
{
index = -1;
text += "</i>";
}
else
{
if (indexOfNewLine < 0 || (indexOfEnd > 0 && indexOfEnd < indexOfNewLine))
{
text = text.Insert(indexOfEnd, "</i");
index = text.IndexOf('<', indexOfEnd + 3);
}
else
{
text = text.Insert(indexOfNewLine, "</i>");
index = text.IndexOf('<', indexOfNewLine + 4);
}
}
}
// text = text.Replace("<i>", " <i>");
text = text.Replace("</i>", "</i> ");
text = text.Replace(" ", " ");
return text.Replace(" " + Environment.NewLine, Environment.NewLine).Trim();
}
public static Encoding GetEncoding(int codePage)
{
switch (codePage)
{
case CodePageLatin:
return Encoding.GetEncoding("iso-8859-1");
case CodePageGreek:
return Encoding.GetEncoding("iso-8859-7");
case CodePageLatinCzech:
return Encoding.GetEncoding("iso-8859-2");
case CodePageArabic:
return Encoding.GetEncoding("iso-8859-6");
case CodePageHebrew:
return Encoding.GetEncoding("iso-8859-8");
case CodePageThai:
return Encoding.GetEncoding("windows-874");
case CodePageCyrillic:
return Encoding.GetEncoding("iso-8859-5");
default: return Encoding.Default;
}
}
private int AutoDetectEncoding()
{
try
{
byte[] buffer = FileUtil.ReadAllBytesShared(_fileName);
int index = 0;
int count = 0;
_codePage = CodePageLatin;
while (index < buffer.Length)
{
int start = index;
Paragraph p = GetPacParagraph(ref index, buffer);
if (p != null)
count++;
if (count == 2)
{
_codePage = CodePageLatin;
var sb = new StringBuilder("ABCDEFGHIJKLMNOPPQRSTUVWXYZÆØÅÄÖÜabcdefghijklmnopqrstuvwxyzæøäåü(1234567890, .!?-\r\n'\"):;&");
foreach (string s in LatinLetters)
sb.Append(s);
var codePageLetters = sb.ToString();
var allOk = true;
foreach (char ch in HtmlUtil.RemoveHtmlTags(p.Text, true))
{
if (!codePageLetters.Contains(ch))
{
allOk = false;
break;
}
}
if (allOk)
return CodePageLatin;
_codePage = CodePageGreek;
index = start;
p = GetPacParagraph(ref index, buffer);
codePageLetters = "AαBβΓγΔδEϵεZζHηΘθIιKκΛλMμNνΞξOοΠπPρΣσςTτΥυΦϕφXχΨψΩω(1234567890, .!?-\r\n'\"):;&";
allOk = true;
foreach (char ch in HtmlUtil.RemoveHtmlTags(p.Text, true))
{
if (!codePageLetters.Contains(ch))
{
allOk = false;
break;
}
}
if (allOk)
return CodePageGreek;
_codePage = CodePageArabic;
index = start;
p = GetPacParagraph(ref index, buffer);
sb = new StringBuilder("(1234567890, .!?-\r\n'\"):;&");
foreach (string s in ArabicLetters)
sb.Append(s);
codePageLetters = sb.ToString();
allOk = true;
foreach (char ch in HtmlUtil.RemoveHtmlTags(p.Text, true))
{
if (!codePageLetters.Contains(ch))
{
allOk = false;
break;
}
}
if (allOk)
return CodePageArabic;
_codePage = CodePageHebrew;
index = start;
p = GetPacParagraph(ref index, buffer);
sb = new StringBuilder("(1234567890, .!?-\r\n'\"):;&");
foreach (string s in HebrewLetters)
sb.Append(s);
codePageLetters = sb.ToString();
allOk = true;
foreach (char ch in HtmlUtil.RemoveHtmlTags(p.Text, true))
{
if (!codePageLetters.Contains(ch))
{
allOk = false;
break;
}
}
if (allOk)
return CodePageHebrew;
_codePage = CodePageCyrillic;
index = start;
p = GetPacParagraph(ref index, buffer);
sb = new StringBuilder("(1234567890, .!?-\r\n'\"):;&");
foreach (string s in CyrillicLetters)
sb.Append(s);
codePageLetters = sb.ToString();
allOk = true;
foreach (char ch in HtmlUtil.RemoveHtmlTags(p.Text, true))
{
if (!codePageLetters.Contains(ch))
{
allOk = false;
break;
}
}
if (allOk)
return CodePageCyrillic;
return CodePageLatin;
}
}
return CodePageLatin;
}
catch
{
return CodePageLatin;
}
}
private void GetCodePage(byte[] buffer, int index, int endDelimiter)
{
if (BatchMode)
{
if (_codePage == -1)
_codePage = AutoDetectEncoding();
return;
}
byte[] previewBuffer = null;
if (buffer != null)
{
var textSample = new byte[200];
int textIndex = 0;
while (index < buffer.Length && buffer[index] != endDelimiter)
{
if (buffer[index] == 0xFF)
{
if (textIndex < textSample.Length - 1)
textSample[textIndex++] = 32; // ASCII 32 SP (Space)
index++;
}
else if (buffer[index] == 0xFE)
{
if (textIndex < textSample.Length - 3)
{
textSample[textIndex++] = buffer[index];
textSample[textIndex++] = buffer[index + 1];
textSample[textIndex++] = buffer[index + 2];
}
index += 3;
}
else
{
if (textIndex < textSample.Length - 1)
textSample[textIndex++] = buffer[index];
index++;
}
}
previewBuffer = new byte[textIndex];
for (int i = 0; i < textIndex; i++)
previewBuffer[i] = textSample[i];
}
if (GetPacEncodingImplementation != null)
{
_codePage = GetPacEncodingImplementation.GetPacEncoding(previewBuffer, _fileName);
}
else
{
_codePage = 2;
}
}
private static byte[] GetLatinBytes(Encoding encoding, string text, byte alignment)
{
int i = 0;
var buffer = new byte[text.Length * 2];
int extra = 0;
while (i < text.Length)
{
if (text.Substring(i).StartsWith(Environment.NewLine))
{
buffer[i + extra] = 0xfe;
i++;
buffer[i + extra] = alignment;
extra++;
buffer[i + extra] = 3;
}
else
{
string letter = text.Substring(i, 1);
int idx = LatinLetters.IndexOf(letter);
if (idx >= 0)
{
int byteValue = LatinCodes[idx];
if (byteValue < 256)
{
buffer[i + extra] = (byte)byteValue;
}
else
{
int high = byteValue / 256;
int low = byteValue % 256;
buffer[i + extra] = (byte)high;
extra++;
buffer[i + extra] = (byte)low;
}
}
else
{
var values = encoding.GetBytes(letter);
for (int k = 0; k < values.Length; k++)
{
byte v = values[k];
if (k > 0)
extra++;
buffer[i + extra] = v;
}
}
}
i++;
}
var result = new byte[i + extra];
for (int j = 0; j < i + extra; j++)
result[j] = buffer[j];
return result;
}
private static byte[] GetArabicBytes(string text, byte alignment)
{
return GetBytesViaLists(text, ArabicLetters, ArabicCodes, alignment);
}
private static byte[] GetHebrewBytes(string text, byte alignment)
{
return GetBytesViaLists(text, HebrewLetters, HebrewCodes, alignment);
}
private static byte[] GetCyrillicBytes(string text, byte alignment)
{
return GetBytesViaLists(text, CyrillicLetters, CyrillicCodes, alignment);
}
private static byte[] GetBytesViaLists(string text, List<string> letters, List<int> codes, byte alignment)
{
int i = 0;
var buffer = new byte[text.Length * 2];
int extra = 0;
while (i < text.Length)
{
if (text.Substring(i).StartsWith(Environment.NewLine))
{
buffer[i + extra] = 0xfe;
i++;
buffer[i + extra] = alignment;
extra++;
buffer[i + extra] = 3;
}
else
{
bool doubleCharacter = false;
string letter = string.Empty;
int idx = -1;
if (i + 1 < text.Length)
{
letter = text.Substring(i, 2);
idx = letters.IndexOf(letter);
if (idx >= 0)
doubleCharacter = true;
}
if (idx < 0)
{
letter = text.Substring(i, 1);
idx = letters.IndexOf(letter);
}
if (idx >= 0)
{
int byteValue = codes[idx];
if (byteValue < 256)
{
buffer[i + extra] = (byte)byteValue;
}
else
{
int high = byteValue / 256;
int low = byteValue % 256;
buffer[i + extra] = (byte)high;
if (doubleCharacter)
{
i++;
doubleCharacter = false;
}
else
{
extra++;
}
buffer[i + extra] = (byte)low;
}
}
else
{
var values = Encoding.Default.GetBytes(letter);
for (int k = 0; k < values.Length; k++)
{
byte v = values[k];
if (k > 0)
extra++;
buffer[i + extra] = v;
}
}
if (doubleCharacter)
i++;
}
i++;
}
var result = new byte[i + extra];
for (int j = 0; j < i + extra; j++)
result[j] = buffer[j];
return result;
}
private static byte[] GetW16Bytes(string text, byte alignment, int encoding)
{
var result = new List<byte>();
bool firstLine = true;
foreach (var line in text.SplitToLines())
{
if (!firstLine)
{
result.Add(0xfe);
result.Add(alignment);
result.Add(3);
}
if (OnlyAnsi(line))
{
foreach (var b in GetLatinBytes(GetEncoding(CodePageLatin), line, alignment))
{
result.Add(b);
}
}
else
{
result.Add(0x1f); // ?
result.Add(0x57); // W
result.Add(0x31); // 1
result.Add(0x36); // 6
result.Add(0x2e); // ?
foreach (var b in Encoding.GetEncoding(encoding).GetBytes(line))
{
result.Add(b);
}
}
firstLine = false;
}
return result.ToArray();
}
private static bool OnlyAnsi(string line)
{
string latin = Utilities.AllLettersAndNumbers + " .!?/%:;=()#$'&\"";
foreach (char ch in line)
{
if (!latin.Contains(ch))
return false;
}
return true;
}
public static string GetArabicString(byte[] buffer, ref int index)
{
byte b = buffer[index];
if (b >= 0x20 && b < 0x70)
return Encoding.ASCII.GetString(buffer, index, 1);
int idx = ArabicCodes.IndexOf(b);
if (idx >= 0)
return ArabicLetters[idx];
if (buffer.Length > index + 1)
{
idx = ArabicCodes.IndexOf(b * 256 + buffer[index + 1]);
if (idx >= 0)
{
index++;
return ArabicLetters[idx];
}
}
return string.Format("({0})", b);
}
public static string GetHebrewString(byte[] buffer, ref int index)
{
byte b = buffer[index];
if (b >= 0x20 && b < 0x70 && b != 44)
return Encoding.ASCII.GetString(buffer, index, 1);
int idx = HebrewCodes.IndexOf(b);
if (idx >= 0)
return HebrewLetters[idx];
return string.Format("({0})", b);
}
public static string GetLatinString(Encoding encoding, byte[] buffer, ref int index)
{
byte b = buffer[index];
int idx = LatinCodes.IndexOf(b);
if (idx >= 0)
return LatinLetters[idx];
if (buffer.Length > index + 1)
{
idx = LatinCodes.IndexOf(b * 256 + buffer[index + 1]);
if (idx >= 0)
{
index++;
return LatinLetters[idx];
}
}
if (b > 13)
return encoding.GetString(buffer, index, 1);
return string.Empty;
}
public static string GetCyrillicString(byte[] buffer, ref int index)
{
byte b = buffer[index];
if (b >= 0x30 && b <= 0x39) // decimal digits
return Encoding.ASCII.GetString(buffer, index, 1);
int idx = CyrillicCodes.IndexOf(b);
if (idx >= 0)
return CyrillicLetters[idx];
if (buffer.Length > index + 1)
{
idx = CyrillicCodes.IndexOf(b * 256 + buffer[index + 1]);
if (idx >= 0)
{
index++;
return CyrillicLetters[idx];
}
}
return string.Format("({0})", b);
}
public static string GetKoreanString(byte[] buffer, ref int index)
{
byte b = buffer[index];
if (b >= 0x30 && b <= 0x39) // decimal digits
return Encoding.ASCII.GetString(buffer, index, 1);
int idx = KoreanCodes.IndexOf(b);
if (idx >= 0)
return KoreanLetters[idx];
if (buffer.Length > index + 1)
{
idx = KoreanCodes.IndexOf(b * 256 + buffer[index + 1]);
if (idx >= 0)
{
index++;
return CyrillicLetters[idx];
}
}
return string.Format("({0})", b);
}
internal static TimeCode GetTimeCode(int timeCodeIndex, byte[] buffer)
{
if (timeCodeIndex > 0)
{
string highPart = string.Format("{0:000000}", buffer[timeCodeIndex] + buffer[timeCodeIndex + 1] * 256);
string lowPart = string.Format("{0:000000}", buffer[timeCodeIndex + 2] + buffer[timeCodeIndex + 3] * 256);
int hours = int.Parse(highPart.Substring(0, 4));
int minutes = int.Parse(highPart.Substring(4, 2));
int second = int.Parse(lowPart.Substring(2, 2));
int frames = int.Parse(lowPart.Substring(4, 2));
int milliseconds = (int)((TimeCode.BaseUnit / Configuration.Settings.General.CurrentFrameRate) * frames);
if (milliseconds > 999)
milliseconds = 999;
return new TimeCode(hours, minutes, second, milliseconds);
}
return new TimeCode(0, 0, 0, 0);
}
}
}