CCDecoder.cpp
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上传日期:2015-12-05
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- /*
- * Copyright (C) 2003-2005 Gabest
- * http://www.gabest.org
- *
- * This Program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2, or (at your option)
- * any later version.
- *
- * This Program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with GNU Make; see the file COPYING. If not, write to
- * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
- * http://www.gnu.org/copyleft/gpl.html
- *
- */
- #include "StdAfx.h"
- #include "ccdecoder.h"
- CCDecoder::CCDecoder(CString fn, CString rawfn) : m_fn(fn), m_rawfn(rawfn)
- {
- m_sts.CreateDefaultStyle(ANSI_CHARSET);
- m_time = 0;
- m_fEndOfCaption = false;
- memset(m_buff, 0, sizeof(m_buff));
- memset(m_disp, 0, sizeof(m_disp));
- m_cursor = CPoint(0, 0);
- if(!m_rawfn.IsEmpty())
- _tremove(m_rawfn);
- }
- CCDecoder::~CCDecoder()
- {
- if(m_sts.GetSize() > 0 && !m_fn.IsEmpty())
- {
- m_sts.Sort();
- m_sts.SaveAs(m_fn, EXTSRT, -1, CTextFile::ASCII);
- m_sts.SaveAs(m_fn.Left(m_fn.ReverseFind('.')+1) + _T("utf8.srt"), EXTSRT, -1, CTextFile::UTF8);
- m_sts.SaveAs(m_fn.Left(m_fn.ReverseFind('.')+1) + _T("utf16le.srt"), EXTSRT, -1, CTextFile::LE16);
- m_sts.SaveAs(m_fn.Left(m_fn.ReverseFind('.')+1) + _T("utf16be.srt"), EXTSRT, -1, CTextFile::BE16);
- }
- }
- void CCDecoder::MoveCursor(int x, int y)
- {
- m_cursor = CPoint(x, y);
- if(m_cursor.x < 0) m_cursor.x = 0;
- if(m_cursor.y < 0) m_cursor.y = 0;
- if(m_cursor.x >= 32) m_cursor.x = 0, m_cursor.y++;
- if(m_cursor.y >= 16) m_cursor.y = 0;
- }
- void CCDecoder::OffsetCursor(int x, int y)
- {
- MoveCursor(m_cursor.x + x, m_cursor.y + y);
- }
- void CCDecoder::PutChar(WCHAR c)
- {
- m_buff[m_cursor.y][m_cursor.x] = c;
- OffsetCursor(1, 0);
- }
- void CCDecoder::SaveDisp(__int64 time)
- {
- CStringW str;
- for(int row = 0; row < 16; row++)
- {
- bool fNonEmptyRow = false;
- for(int col = 0; col < 32; col++)
- {
- if(m_disp[row][col])
- {
- CStringW str2(&m_disp[row][col]);
- if(fNonEmptyRow) str += ' ';
- str += str2;
- col += str2.GetLength();
- fNonEmptyRow = true;
- }
- }
- if(fNonEmptyRow) str += 'n';
- }
- if(str.IsEmpty()) return;
- m_sts.Add(str, true, (int)m_time, (int)time);
- }
- void CCDecoder::DecodeCC(BYTE* buff, int len, __int64 time)
- {
- if(!m_rawfn.IsEmpty())
- {
- if(FILE* f = _tfopen(m_rawfn, _T("at")))
- {
- _ftprintf(f, _T("%02d:%02d:%02d.%03dn"),
- (int)(time/1000/60/60),
- (int)((time/1000/60)%60),
- (int)((time/1000)%60),
- (int)(time%1000));
- for(int i = 0; i < len; i++)
- {
- _ftprintf(f, _T("%02x"), buff[i]);
- if(i < len-1) _ftprintf(f, _T(" "));
- if(i > 0 && (i&15)==15) _ftprintf(f, _T("n"));
- }
- if(len > 0) _ftprintf(f, _T("nn"));
- fclose(f);
- }
- }
- for(int i = 0; i < len; i++)
- {
- BYTE c = buff[i]&0x7f;
- if(c >= 0x20)
- {
- static WCHAR charmap[0x60] =
- {
- ' ','!','"','#','$','%','&',''','(',')',' ','+',',','-','.','/',
- '0','1','2','3','4','5','6','7','8','9',':',';','<','=','>',' ',
- '@','A','B','C','D','E','F','G','H','I','J','K','L','M','N','O',
- 'P','Q','R','S','T','U','V','W','X','Y','Z','[',' ',']',' ',' ',
- ' ','a','b','c','d','e','f','g','h','i','j','k','l','m','n','o',
- 'p','q','r','s','t','u','v','w','x','y','z',' ',' ','N','n',' '
- };
- PutChar(charmap[c - 0x20]);
- }
- else if(buff[i] != 0x80 && i < len-1)
- {
- // codes and special characters are supposed to be doubled
- if(i < len-3 && buff[i] == buff[i+2] && buff[i+1] == buff[i+3])
- i += 2;
- c = buff[i+1]&0x7f;
- if(buff[i] == 0x91 && c >= 0x20 && c < 0x30) // formating
- {
- // TODO
- }
- else if(buff[i] == 0x91 && c == 0x39) // transparent space
- {
- OffsetCursor(1, 0);
- }
- else if(buff[i] == 0x91 && c >= 0x30 && c < 0x40) // special characters
- {
- static WCHAR charmap[0x10] =
- {
- 0x00ae, // (r)egistered
- 0x00b0, // degree
- 0x00bd, // 1/2
- 0x00bf, // inverted question mark
- 0x2122, // trade mark
- 0x00a2, // cent
- 0x00a3, // pound
- 0x266a, // music
- 0x00e0, // a`
- 0x00ff, // transparent space, handled above
- 0x00e8, // e`
- 0x00e2, // a^
- 0x00ea, // e^
- 0x00ee, // i^
- 0x00f4, // o^
- 0x00fb, // u^
- };
- PutChar(charmap[c - 0x30]);
- }
- else if(buff[i] == 0x92 && c >= 0x20 && c < 0x40) // extended characters
- {
- static WCHAR charmap[0x20] =
- {
- 0x00c0, // A'
- 0x00c9, // E'
- 0x00d3, // O'
- 0x00da, // U'
- 0x00dc, // U:
- 0x00fc, // u:
- 0x2018, // `
- 0x00a1, // inverted !
- 0x002a, // *
- 0x2019, // '
- 0x002d, // -
- 0x00a9, // (c)opyright
- 0x2120, // SM
- 0x00b7, // . (dot in the middle)
- 0x201c, // inverted "
- 0x201d, // "
- 0x00c1, // A`
- 0x00c2, // A^
- 0x00c7, // C,
- 0x00c8, // E`
- 0x00ca, // E^
- 0x00cb, // E:
- 0x00eb, // e:
- 0x00ce, // I^
- 0x00cf, // I:
- 0x00ef, // i:
- 0x00d4, // O^
- 0x00d9, // U`
- 0x00f9, // u`
- 0x00db, // U^
- 0x00ab, // <<
- 0x00bb, // >>
- };
- PutChar(charmap[c - 0x20]);
- }
- else if(buff[i] == 0x13 && c >= 0x20 && c < 0x40) // more extended characters
- {
- static WCHAR charmap[0x20] =
- {
- 0x00c3, // A~
- 0x00e3, // a~
- 0x00cd, // I'
- 0x00cc, // I`
- 0x00ec, // i`
- 0x00d2, // O`
- 0x00f2, // o`
- 0x00d5, // O~
- 0x00f5, // o~
- 0x007b, // {
- 0x007d, // }
- 0x005c, // /* */
- 0x005e, // ^
- 0x005f, // _
- 0x00a6, // |
- 0x007e, // ~
- 0x00c4, // A:
- 0x00e4, // a:
- 0x00d6, // O:
- 0x00f6, // o:
- 0x00df, // B (ss in german)
- 0x00a5, // Y=
- 0x00a4, // ox
- 0x007c, // |
- 0x00c5, // Ao
- 0x00e5, // ao
- 0x00d8, // O/
- 0x00f8, // o/
- 0x250c, // |-
- 0x2510, // -|
- 0x2514, // |_
- 0x2518, // _|
- };
- PutChar(charmap[c - 0x20]);
- }
- else if(buff[i] == 0x94 && buff[i+1] == 0xae) // Erase Non-displayed [buffer] Memory
- {
- memset(m_buff, 0, sizeof(m_buff));
- }
- else if(buff[i] == 0x94 && buff[i+1] == 0x20) // Resume Caption Loading
- {
- memset(m_buff, 0, sizeof(m_buff));
- }
- else if(buff[i] == 0x94 && buff[i+1] == 0x2f) // End Of Caption
- {
- if(memcmp(m_disp, m_buff, sizeof(m_disp)) != 0)
- {
- if(m_fEndOfCaption)
- SaveDisp(time + (i/2)*1000/30);
-
- m_fEndOfCaption = true;
- memcpy(m_disp, m_buff, sizeof(m_disp));
- m_time = time + (i/2)*1000/30;
- }
- }
- else if(buff[i] == 0x94 && buff[i+1] == 0x2c) // Erase Displayed Memory
- {
- if(m_fEndOfCaption)
- {
- m_fEndOfCaption = false;
- SaveDisp(time + (i/2)*1000/30);
- }
- memset(m_disp, 0, sizeof(m_disp));
- }
- else if(buff[i] == 0x97 && (buff[i+1] == 0xa1 || buff[i+1] == 0xa2 || buff[i+1] == 0x23)) // Tab Over
- {
- OffsetCursor(buff[i+1]&3, 0);
- }
- else if(buff[i] == 0x91 || buff[i] == 0x92 || buff[i] == 0x15 || buff[i] == 0x16
- || buff[i] == 0x97 || buff[i] == 0x10 || buff[i] == 0x13 || buff[i] == 0x94) // curpos, color, underline
- {
- int row = 0;
- switch(buff[i])
- {
- default:
- case 0x91: row = 0; break;
- case 0x92: row = 2; break;
- case 0x15: row = 4; break;
- case 0x16: row = 6; break;
- case 0x97: row = 8; break;
- case 0x10: row = 10; break;
- case 0x13: row = 12; break;
- case 0x94: row = 14; break;
- }
- if(buff[i+1]&0x20) row++;
- int col = buff[i+1]&0xe;
- if(col == 0 || (col > 0 && !(buff[i+1]&0x10))) col = 0;
- else col <<= 1;
- MoveCursor(col, row);
- }
- else
- {
- int iiii = 0;
- }
- i++;
- }
- }
- }
- void CCDecoder::ExtractCC(BYTE* buff, int len, __int64 time)
- {
- for(int i = 0; i < len-9; i++)
- {
- if(*(DWORD*)&buff[i] == 0xb2010000 && *(DWORD*)&buff[i+4] == 0xf8014343)
- {
- i += 8;
- int nBytes = buff[i++]&0x3f;
- if(nBytes > 0)
- {
- nBytes = (nBytes+1)&~1;
- BYTE* pData1 = new BYTE[nBytes];
- BYTE* pData2 = new BYTE[nBytes];
- if(pData1 && pData2)
- {
- int nBytes1 = 0, nBytes2 = 0;
- for(int j = 0; j < nBytes && i < 0x800;)
- {
- if(buff[i++] == 0xff)
- {
- pData1[nBytes1++] = buff[i++];
- pData1[nBytes1++] = buff[i++];
- }
- else i+=2;
-
- j++;
- if(j >= nBytes) break;
- if(buff[i++] == 0xff)
- {
- pData2[nBytes2++] = buff[i++];
- pData2[nBytes2++] = buff[i++];
- }
- else i+=2;
- j++;
- }
- if(nBytes1 > 0)
- DecodeCC(pData1, nBytes1, time);
- if(nBytes2 > 0)
- DecodeCC(pData2, nBytes2, time);
- }
- if(pData1) delete [] pData1;
- if(pData2) delete [] pData2;
- }
- break;
- }
- }
- }