/* Copyright (C) 2003, 2004, 2005, 2006, 2008, 2012 Rocky Bernstein Copyright (C) 2000 Herbert Valerio Riedel 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 3 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, see . */ /*! \file sector.h \brief Things related to CD-ROM layout: tracks, sector sizes, MSFs, LBAs. 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: \verbatim 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 | \endverbatim */ #ifndef CDIO_SECTOR_H_ #define CDIO_SECTOR_H_ #ifdef __cplusplus extern "C" { #endif #include /*! Information that can be obtained through a Read Subchannel command. */ typedef enum cdio_subchannel { CDIO_SUBCHANNEL_SUBQ_DATA = 0, CDIO_SUBCHANNEL_CURRENT_POSITION = 1, CDIO_SUBCHANNEL_MEDIA_CATALOG = 2, CDIO_SUBCHANNEL_TRACK_ISRC = 3 } cdio_subchannel; /*! track flags * Q Sub-channel Control Field (4.2.3.3) */ typedef enum { NONE = 0x00, /* no flags set */ PRE_EMPHASIS = 0x01, /* audio track recorded with pre-emphasis */ COPY_PERMITTED = 0x02, /* digital copy permitted */ DATA = 0x04, /* data track */ FOUR_CHANNEL_AUDIO = 0x08, /* 4 audio channels */ SCMS = 0x10 /* SCMS (5.29.2.7) */ } flag_t; #define CDIO_PREGAP_SECTORS 150 #define CDIO_POSTGAP_SECTORS 150 /*! An enumeration for some of the CDIO_CD \#defines below. This isn't really an enumeration one would really use in a program it is to be helpful in debuggers where wants just to refer to the CDIO_CD_ names and get something. */ extern enum cdio_cd_enums { CDIO_CD_MINS = 74, /**< max. minutes per CD, not really a limit */ CDIO_CD_SECS_PER_MIN = 60, /**< seconds per minute */ CDIO_CD_FRAMES_PER_SEC = 75, /**< frames per second */ CDIO_CD_SYNC_SIZE = 12, /**< 12 sync bytes per raw data frame */ CDIO_CD_CHUNK_SIZE = 24, /**< lowest-level "data bytes piece" */ CDIO_CD_NUM_OF_CHUNKS = 98, /**< chunks per frame */ CDIO_CD_FRAMESIZE_SUB = 96, /**< subchannel data "frame" size */ CDIO_CD_HEADER_SIZE = 4, /**< header (address) bytes per raw frame */ CDIO_CD_SUBHEADER_SIZE = 8, /**< subheader bytes per raw XA data frame */ CDIO_CD_ECC_SIZE = 276, /**< bytes ECC per most raw data frame types */ CDIO_CD_FRAMESIZE = 2048, /**< bytes per frame, "cooked" mode */ CDIO_CD_FRAMESIZE_RAW = 2352, /**< bytes per frame, "raw" mode */ CDIO_CD_FRAMESIZE_RAWER = 2646, /**< The maximum possible returned */ CDIO_CD_FRAMESIZE_RAW1 = 2340, CDIO_CD_FRAMESIZE_RAW0 = 2336, CDIO_CD_MAX_SESSIONS = 99, CDIO_CD_MIN_SESSION_NO = 1, /**<, Smallest CD session number */ CDIO_CD_MAX_LSN = 450150, /**< Largest LSN in a CD */ CDIO_CD_MIN_LSN = -450150, /**< Smallest LSN in a CD */ } cdio_cd_enums; /*! 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 (CDIO_CD_FRAMESIZE_RAW-CDIO_CD_SYNC_SIZE) /*2340*/ #define CDIO_CD_FRAMESIZE_RAW0 (CDIO_CD_FRAMESIZE_RAW-CDIO_CD_SYNC_SIZE-CDIO_CD_HEADER_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) /*! String of bytes used to identify the beginning of a Mode 1 or Mode 2 sector. */ extern const uint8_t CDIO_SECTOR_SYNC_HEADER[CDIO_CD_SYNC_SIZE]; /**< {0, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0}; */ /*! An enumeration for some of the M2*_SECTOR_SIZE \#defines below. This isn't really an enumeration one would really use in a program it is to be helpful in debuggers where wants just to refer to the M2*_SECTOR_SIZE names and get something. */ extern enum m2_sector_enums { M2F2_SECTOR_SIZE = 2324, M2SUB_SECTOR_SIZE = 2332, M2RAW_SECTOR_SIZE = 2336 } m2_sector_enums; #define M2F2_SECTOR_SIZE 2324 #define M2SUB_SECTOR_SIZE 2332 #define M2RAW_SECTOR_SIZE 2336 /*! Largest CD session number */ #define CDIO_CD_MAX_SESSIONS 99 /*! Smallest CD session number */ #define CDIO_CD_MIN_SESSION_NO 1 /*! Largest LSN in a CD */ #define CDIO_CD_MAX_LSN 450150 /*! Smallest LSN in a CD */ #define CDIO_CD_MIN_LSN -450150 #define CDIO_CD_FRAMES_PER_MIN \ (CDIO_CD_FRAMES_PER_SEC*CDIO_CD_SECS_PER_MIN) typedef enum cdio_cd_minutes_sectors { CDIO_CD_74MIN_SECTORS = UINT32_C(74) * CDIO_CD_FRAMES_PER_MIN, CDIO_CD_80MIN_SECTORS = UINT32_C(80) * CDIO_CD_FRAMES_PER_MIN, CDIO_CD_90MIN_SECTORS = UINT32_C(90) * CDIO_CD_FRAMES_PER_MIN, CDIO_CD_MAX_SECTORS = UINT32_C(100) * CDIO_CD_FRAMES_PER_MIN - CDIO_PREGAP_SECTORS } cdio_cd_minutes_sectors; #define msf_t_SIZEOF 3 /*! Convert an LBA into a string representation of the MSF. \warning cdio_lba_to_msf_str returns new allocated string */ char *cdio_lba_to_msf_str (lba_t i_lba); /*! Convert an MSF into a string representation of the MSF. \warning cdio_msf_to_msf_str returns new allocated string */ char *cdio_msf_to_str (const msf_t *p_msf); /*! Convert an LBA into the corresponding LSN. */ lba_t cdio_lba_to_lsn (lba_t i_lba); /*! Convert an LBA into the corresponding MSF. */ void cdio_lba_to_msf(lba_t i_lba, msf_t *p_msf); /*! Convert an LSN into the corresponding LBA. CDIO_INVALID_LBA is returned if there is an error. */ lba_t cdio_lsn_to_lba (lsn_t i_lsn); /*! Convert an LSN into the corresponding MSF. */ void cdio_lsn_to_msf (lsn_t i_lsn, msf_t *p_msf); /*! Convert a MSF into the corresponding LBA. CDIO_INVALID_LBA is returned if there is an error. */ lba_t cdio_msf_to_lba (const msf_t *p_msf); /*! Convert a MSF into the corresponding LSN. CDIO_INVALID_LSN is returned if there is an error. */ lsn_t cdio_msf_to_lsn (const msf_t *p_msf); /*! Convert a MSF - broken out as 3 integer components into the corresponding LBA. CDIO_INVALID_LBA is returned if there is an error. */ lba_t cdio_msf3_to_lba (unsigned int minutes, unsigned int seconds, unsigned int frames); /*! Convert a string of the form MM:SS:FF into the corresponding LBA. CDIO_INVALID_LBA is returned if there is an error. */ lba_t cdio_mmssff_to_lba (const char *psz_mmssff); #ifdef __cplusplus } #endif #ifndef DO_NOT_WANT_PARANOIA_COMPATIBILITY /** For compatibility with good ol' paranoia */ #define CD_FRAMESIZE_RAW CDIO_CD_FRAMESIZE_RAW #endif /*DO_NOT_WANT_PARANOIA_COMPATIBILITY*/ #endif /* CDIO_SECTOR_H_ */ /* * Local variables: * c-file-style: "gnu" * tab-width: 8 * indent-tabs-mode: nil * End: */