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/*
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Copyright (C) 2004-2005, 2008, 2011-2013
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Rocky Bernstein <rocky@gnu.org>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef CDIO_DRIVER_CDTEXT_PRIVATE_H_
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#define CDIO_DRIVER_CDTEXT_PRIVATE_H_
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#include <cdio/types.h>
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#ifndef CDIO_CD_MAX_TRACKS
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# define CDIO_CD_MAX_TRACKS 99 /* Largest CD track number */
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#endif
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#define CDTEXT_GET_LEN16(p) (p[0]<<8) + p[1]
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typedef enum {
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CDTEXT_LEN_BINARY_MAX = 9216,
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CDTEXT_LEN_TEXTDATA = 12,
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CDTEXT_LEN_PACK = 18,
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CDTEXT_LEN_BLOCKSIZE = 36,
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CDTEXT_NUM_BLOCKS_MAX = 8,
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CDTEXT_NUM_TRACKS_MAX = CDIO_CD_MAX_TRACKS+1, /* +1 for 0th disk track */
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CDTEXT_NUM_BLOCKPACKS_MAX = 255
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} cdtext_format_enum_t;
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/**
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* From table J.2 - Pack Type Indicator Definitions from
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* Working Draft NCITS XXX T10/1364-D Revision 10G. November 12, 2001.
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*/
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typedef enum {
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CDTEXT_PACK_TITLE = 0x80,
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CDTEXT_PACK_PERFORMER = 0x81,
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CDTEXT_PACK_SONGWRITER = 0x82,
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CDTEXT_PACK_COMPOSER = 0x83,
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CDTEXT_PACK_ARRANGER = 0x84,
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CDTEXT_PACK_MESSAGE = 0x85,
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CDTEXT_PACK_DISCID = 0x86,
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CDTEXT_PACK_GENRE = 0x87,
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CDTEXT_PACK_TOC = 0x88,
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CDTEXT_PACK_TOC2 = 0x89,
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CDTEXT_PACK_UPC = 0x8E,
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CDTEXT_PACK_BLOCKSIZE = 0x8F
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} cdtext_packtype_enum_t;
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/** CD-Text character encodings */
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typedef enum cdtext_charcode_enum_s {
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CDTEXT_CHARCODE_ISO_8859_1 = 0x00, /**< ISO-8859-1 (8 bit), Latin-1 */
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CDTEXT_CHARCODE_ASCII = 0x01, /**< ASCII (7 bit) */
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CDTEXT_CHARCODE_SHIFT_JIS = 0x80 /**< Shift_JIS (double byte), JIS X 0208 Appendix 1 */
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///* The following were proposed but never implemented anywhere.
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// * They are mentioned for completeness here
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// * CDTEXT_CHARCODE_KOREAN = 0x81, /**< Korean */
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// * CDTEXT_CHARCODE_CHINESE = 0x82, /**< Mandarin Chinese */
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// * CDTEXT_CHARCODE_UNDEFINED = 0xFF, /**< everything else */
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// */
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} cdtext_charcode_enum_t;
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/** Structure of CD-TEXT data Packs */
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struct cdtext_pack_s
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{
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uint8_t type;
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uint8_t i_track;
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uint8_t seq;
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uint8_t char_pos; /* character position */
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uint8_t block; /* block number 0..7 */
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uint8_t db_chars; /* double byte character */
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uint8_t text[CDTEXT_LEN_TEXTDATA];
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uint8_t crc[2];
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};
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/** Structure of of block size information packs */
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struct cdtext_blocksize_s
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{
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uint8_t charcode; /* character code */
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uint8_t i_first_track; /* first track number */
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uint8_t i_last_track; /* last track number */
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uint8_t copyright; /* 3 CD-TEXT is copyrighted, 0 no copyright on CD-TEXT */
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uint8_t i_packs[16]; /* number of packs of each type
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* 0 TITLE; 1 PERFORMER; 2 SONGWRITER; 3 COMPOSER;
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* 4 ARRANGER; 5 MESSAGE; 6 DISCID; 7 GENRE;
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* 8 TOC; 9 TOC2; 10-12 RESERVED; 13 CLOSED;
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* 14 UPC_ISRC; 15 BLOCKSIZE */
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uint8_t lastseq[8]; /* last sequence for block 0..7 */
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uint8_t langcode[8]; /* language code for block 0..7 */
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};
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typedef struct cdtext_pack_s cdtext_pack_t;
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typedef struct cdtext_blocksize_s cdtext_blocksize_t;
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/*! Structure for CD-TEXT of a track. */
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struct cdtext_track_s {
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char *field[MAX_CDTEXT_FIELDS];
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};
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/*! Structure for CD-TEXT of a block. */
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struct cdtext_block_s {
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struct cdtext_track_s track[CDTEXT_NUM_TRACKS_MAX]; /**< 0: disc; 1..99: tracks */
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cdtext_genre_t genre_code; /**< genre code of the disc */
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cdtext_lang_t language_code; /**< language of this block */
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bool copyright; /**< CD-TEXT copyright */
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track_t first_track; /**< first track number */
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track_t last_track; /**< last track number */
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};
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/*! Structure for CD-TEXT of a disc.
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@see cdtext_init, cdtext_destroy, cdtext_get, and cdtext_set.
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*/
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struct cdtext_s {
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struct cdtext_block_s block[CDTEXT_NUM_BLOCKS_MAX]; /**< CD-TEXT for block 0..7 */
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uint8_t block_i; /**< index of active block */
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};
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int cdtext_read_pack (cdtext_pack_t *pack, const uint8_t *data);
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/*!
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returns enum of field if key is a CD-Text keyword,
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returns CDTEXT_FIELD_INVALID otherwise.
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*/
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cdtext_field_t cdtext_is_field (const char *field);
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/*!
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returns enum of language if lang is a valid language,
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returns CDTEXT_LANGUAGE_UNKNOWN otherwise.
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*/
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cdtext_lang_t cdtext_is_language (const char *lang);
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#endif /* CDIO_DRIVER_CDTEXT_PRIVATE_H_ */
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/*
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* Local variables:
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* c-file-style: "gnu"
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*/
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