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Diffstat (limited to 'src/input/vcd/libcdio/cdio/sector.h')
| -rw-r--r-- | src/input/vcd/libcdio/cdio/sector.h | 162 |
1 files changed, 162 insertions, 0 deletions
diff --git a/src/input/vcd/libcdio/cdio/sector.h b/src/input/vcd/libcdio/cdio/sector.h new file mode 100644 index 000000000..39dd0fefb --- /dev/null +++ b/src/input/vcd/libcdio/cdio/sector.h @@ -0,0 +1,162 @@ +/* + $Id: sector.h,v 1.1 2003/10/13 11:47:12 f1rmb Exp $ + + Copyright (C) 2000 Herbert Valerio Riedel <hvr@gnu.org> + Copyright (C) 2003 Rocky Bernstein <rocky@panix.com> + + 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 <cdio/types.h> + +#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: + */ |