CdTextEncoder.h
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上传日期:2007-01-06
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- /* cdrdao - write audio CD-Rs in disc-at-once mode
- *
- * Copyright (C) 1998, 1999 Andreas Mueller <mueller@daneb.ping.de>
- *
- * 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 of the License, 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 this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- */
- /*
- * $Log: CdTextEncoder.h,v $
- * Revision 1.1 1999/06/13 19:31:15 mueller
- * Initial revision
- *
- */
- #ifndef __CD_TEXT_ENCODER_H__
- #define __CD_TEXT_ENCODER_H__
- #include "CdrDriver.h"
- #include "CdTextItem.h"
- class CdTextItem;
- class PWSubChannel96;
- class CdTextEncoder {
- public:
- CdTextEncoder(const Toc *);
- ~CdTextEncoder();
- int encode();
- const PWSubChannel96 **getSubChannels(long *subChannelCount);
- private:
- struct CdTextSizeInfo {
- unsigned char characterCode;
- unsigned char firstTrack;
- unsigned char lastTrack;
- unsigned char copyright;
- unsigned char packTypeCount[16];
- unsigned char lastSequenceNumber[8];
- unsigned char languageCode[8];
- };
- const Toc *toc_;
-
- CdTextSizeInfo sizeInfo_[8];
- long packCount_;
- class CdTextPackEntry *packs_;
- class CdTextPackEntry *lastPack_;
- int lastPackPos_; // number of characters written to last pack
- long packId_;
- PWSubChannel96 **subChannels_;
- long subChannelCount_;
- static unsigned short CRCTAB_[256];
- void appendPack(CdTextPackEntry *);
- void buildPacks();
- void buildPacks(int blockNr, CdTextItem::PackType type);
- void buildSizeInfoPacks();
- void calcCrcs();
- void buildSubChannels();
- void encodeCdTextItem(int, int, const CdTextItem *);
- };
- #endif