/* $Id: sector.h,v 1.1 2003/10/13 11:47:12 f1rmb Exp $ Copyright (C) 2000 Herbert Valerio Riedel Copyright (C) 2003 Rocky Bernstein 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ /* Things related to CDROM layout. Sector sizes, MSFs, LBAs, */ #ifndef _CDIO_SECTOR_H_ #define _CDIO_SECTOR_H_ #ifdef __cplusplus extern "C" { #endif #include #define CDIO_PREGAP_SECTORS 150 #define CDIO_POSTGAP_SECTORS 150 /* * A CD-ROM physical sector size is 2048, 2052, 2056, 2324, 2332, 2336, * 2340, or 2352 bytes long. * Sector types of the standard CD-ROM data formats: * * format sector type user data size (bytes) * ----------------------------------------------------------------------------- * 1 (Red Book) CD-DA 2352 (CDIO_CD_FRAMESIZE_RAW) * 2 (Yellow Book) Mode1 Form1 2048 (CDIO_CD_FRAMESIZE) * 3 (Yellow Book) Mode1 Form2 2336 (M2RAW_SECTOR_SIZE) * 4 (Green Book) Mode2 Form1 2048 (CDIO_CD_FRAMESIZE) * 5 (Green Book) Mode2 Form2 2328 (2324+4 spare bytes) * * * The layout of the standard CD-ROM data formats: * ----------------------------------------------------------------------------- * - audio (red): | audio_sample_bytes | * | 2352 | * * - data (yellow, mode1): | sync - head - data - EDC - zero - ECC | * | 12 - 4 - 2048 - 4 - 8 - 276 | * * - data (yellow, mode2): | sync - head - data | * | 12 - 4 - 2336 | * * - XA data (green, mode2 form1): | sync - head - sub - data - EDC - ECC | * | 12 - 4 - 8 - 2048 - 4 - 276 | * * - XA data (green, mode2 form2): | sync - head - sub - data - Spare | * | 12 - 4 - 8 - 2324 - 4 | * */ /* Some generally useful CD-ROM information -- mostly based on the above. This is from linux.h - not to slight other OS's. This was the first place I came across such useful stuff. */ #define CDIO_CD_MINS 74 /* max. minutes per CD, not really a limit */ #define CDIO_CD_SECS_PER_MIN 60 /* seconds per minute */ #define CDIO_CD_FRAMES_PER_SEC 75 /* frames per second */ #define CDIO_CD_SYNC_SIZE 12 /* 12 sync bytes per raw data frame */ #define CDIO_CD_CHUNK_SIZE 24 /* lowest-level "data bytes piece" */ #define CDIO_CD_NUM_OF_CHUNKS 98 /* chunks per frame */ #define CDIO_CD_FRAMESIZE_SUB 96 /* subchannel data "frame" size */ #define CDIO_CD_HEADER_SIZE 4 /* header (address) bytes per raw data frame */ #define CDIO_CD_SUBHEADER_SIZE 8 /* subheader bytes per raw XA data frame */ #define CDIO_CD_EDC_SIZE 4 /* bytes EDC per most raw data frame types */ #define CDIO_CD_M1F1_ZERO_SIZE 8 /* bytes zero per yellow book mode 1 frame */ #define CDIO_CD_ECC_SIZE 276 /* bytes ECC per most raw data frame types */ #define CDIO_CD_FRAMESIZE 2048 /* bytes per frame, "cooked" mode */ #define CDIO_CD_FRAMESIZE_RAW 2352/* bytes per frame, "raw" mode */ #define CDIO_CD_FRAMESIZE_RAWER 2646 /* The maximum possible returned bytes */ #define CDIO_CD_FRAMESIZE_RAW1 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE) /*2340*/ #define CDIO_CD_FRAMESIZE_RAW0 (CD_FRAMESIZE_RAW-CD_SYNC_SIZE-CD_HEAD_SIZE) /*2336*/ /* "before data" part of raw XA (green, mode2) frame */ #define CDIO_CD_XA_HEADER (CDIO_CD_HEADER_SIZE+CDIO_CD_SUBHEADER_SIZE) /* "after data" part of raw XA (green, mode2 form1) frame */ #define CDIO_CD_XA_TAIL (CDIO_CD_EDC_SIZE+CDIO_CD_ECC_SIZE) /* "before data" sync bytes + header of XA (green, mode2) frame */ #define CDIO_CD_XA_SYNC_HEADER (CDIO_CD_SYNC_SIZE+CDIO_CD_XA_HEADER) /* CD-ROM address types (Linux cdrom_tocentry.cdte_format) */ #define CDIO_CDROM_LBA 0x01 /* "logical block": first frame is #0 */ #define CDIO_CDROM_MSF 0x02 /* "minute-second-frame": binary, not bcd here! */ #define CDIO_CDROM_DATA_TRACK 0x04 /* The leadout track is always 0xAA, regardless of # of tracks on disc */ #define CDIO_CDROM_LEADOUT_TRACK 0xAA #define M2F2_SECTOR_SIZE 2324 #define M2SUB_SECTOR_SIZE 2332 #define M2RAW_SECTOR_SIZE 2336 #define CDIO_CD_MAX_TRACKS 99 #define CDIO_CD_MIN_TRACK_NO 1 #define CDIO_CD_FRAMES_PER_MIN \ (CDIO_CD_FRAMES_PER_SEC*CDIO_CD_SECS_PER_MIN) #define CDIO_CD_74MIN_SECTORS (UINT32_C(74)*CDIO_CD_FRAMES_PER_MIN) #define CDIO_CD_80MIN_SECTORS (UINT32_C(80)*CDIO_CD_FRAMES_PER_MIN) #define CDIO_CD_90MIN_SECTORS (UINT32_C(90)*CDIO_CD_FRAMES_PER_MIN) #define CDIO_CD_MAX_SECTORS \ (UINT32_C(100)*CDIO_CD_FRAMES_PER_MIN-CDIO_PREGAP_SECTORS) #define msf_t_SIZEOF 3 /* warning, returns new allocated string */ char *cdio_lba_to_msf_str (lba_t lba); lba_t cdio_lba_to_lsn (lba_t lba); void cdio_lba_to_msf(lba_t lba, msf_t *msf); lba_t cdio_lsn_to_lba (lsn_t lsn); void cdio_lsn_to_msf (lsn_t lsn, msf_t *msf); lba_t cdio_msf_to_lba (const msf_t *msf); lsn_t cdio_msf_to_lsn (const msf_t *msf); #ifdef __cplusplus } #endif #endif /* _CDIO_SECTOR_H_ */ /* * Local variables: * c-file-style: "gnu" * tab-width: 8 * indent-tabs-mode: nil * End: */