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Diffstat (limited to 'contrib/libcdio/cdtext.c')
| -rw-r--r-- | contrib/libcdio/cdtext.c | 228 |
1 files changed, 228 insertions, 0 deletions
diff --git a/contrib/libcdio/cdtext.c b/contrib/libcdio/cdtext.c new file mode 100644 index 000000000..5842641f7 --- /dev/null +++ b/contrib/libcdio/cdtext.c @@ -0,0 +1,228 @@ +/* + $Id: cdtext.c,v 1.1 2005/01/01 02:43:57 rockyb Exp $ + + Copyright (C) 2004 Rocky Bernstein <rocky@panix.com> + toc reading routine adapted from cuetools + Copyright (C) 2003 Svend Sanjay Sorensen <ssorensen@fastmail.fm> + + 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 +*/ + +#ifdef HAVE_CONFIG_H +# include "config.h" +#endif + +#include <cdio/cdtext.h> +#include <cdio/logging.h> +#include "cdtext_private.h" + +#ifdef HAVE_STDLIB_H +#include <stdlib.h> +#endif + +#ifdef HAVE_STRING_H +#include <string.h> +#endif + +/*! Note: the order and number items (except CDTEXT_INVALID) should + match the cdtext_field_t enumeration. */ +const char *cdtext_keywords[] = + { + "ARRANGER", + "COMPOSER", + "DISC_ID", + "GENRE", + "ISRC", + "MESSAGE", + "PERFORMER", + "SIZE_INFO", + "SONGWRITER", + "TITLE", + "TOC_INFO", + "TOC_INFO2", + "UPC_EAN", + }; + + +/*! Return string representation of the enum values above */ +const char * +cdtext_field2str (cdtext_field_t i) +{ + if (i >= MAX_CDTEXT_FIELDS) + return "Invalid CDTEXT field index"; + else + return cdtext_keywords[i]; +} + + +/*! Free memory assocated with cdtext*/ +void +cdtext_destroy (cdtext_t *cdtext) +{ + cdtext_field_t i; + + for (i=0; i < MAX_CDTEXT_FIELDS; i++) { + if (cdtext->field[i]) free(cdtext->field[i]); + } +} + +/*! + returns the CDTEXT value associated with key. NULL is returned + if key is CDTEXT_INVALID or the field is not set. + */ +const char * +cdtext_get (cdtext_field_t key, const cdtext_t *cdtext) +{ + if (key == CDTEXT_INVALID) return NULL; + return cdtext->field[key]; +} + +/*! Initialize a new cdtext structure. + When the structure is no longer needed, release the + resources using cdtext_delete. +*/ +void +cdtext_init (cdtext_t *cdtext) +{ + cdtext_field_t i; + + for (i=0; i < MAX_CDTEXT_FIELDS; i++) { + cdtext->field[i] = NULL; + } +} + +/*! + returns 0 if field is a CD-TEXT keyword, returns non-zero otherwise +*/ +cdtext_field_t +cdtext_is_keyword (const char *key) +{ +#if 0 + char *item; + + item = bsearch(key, + cdtext_keywords, 12, + sizeof (char *), + (int (*)(const void *, const void *)) + strcmp); + return (NULL != item) ? 0 : 1; +#else + unsigned int i; + + for (i = 0; i < 13 ; i++) + if (0 == strcmp (cdtext_keywords[i], key)) { + return i; + } + return CDTEXT_INVALID; +#endif +} + +/*! sets cdtext's keyword entry to field. + */ +void +cdtext_set (cdtext_field_t key, const char *value, cdtext_t *cdtext) +{ + if (NULL == value || key == CDTEXT_INVALID) return; + + if (cdtext->field[key]) free (cdtext->field[key]); + cdtext->field[key] = strdup (value); + +} + +#define SET_CDTEXT_FIELD(FIELD) \ + (*set_cdtext_field_fn)(user_data, i_track, i_first_track, FIELD, buffer); + +/* + parse all CD-TEXT data retrieved. +*/ +bool +cdtext_data_init(void *user_data, track_t i_first_track, + unsigned char *wdata, + set_cdtext_field_fn_t set_cdtext_field_fn) +{ + CDText_data_t *pdata; + int i; + int j; + char buffer[256]; + int idx; + int i_track; + bool b_ret = false; + + memset( buffer, 0x00, sizeof(buffer) ); + idx = 0; + + pdata = (CDText_data_t *) (&wdata[4]); + for( i=0; i < CDIO_CDTEXT_MAX_PACK_DATA; i++ ) { + +#if TESTED + if ( pdata->bDBC ) { + cdio_warn("Double-byte characters not supported"); + return false; + } +#endif + + if( pdata->seq != i ) + break; + + if( (pdata->type >= 0x80) + && (pdata->type <= 0x85) && (pdata->block == 0) ) { + i_track = pdata->i_track; + + for( j=0; j < CDIO_CDTEXT_MAX_TEXT_DATA; j++ ) { + if( pdata->text[j] == 0x00 ) { + bool b_field_set=true; + switch( pdata->type) { + case CDIO_CDTEXT_TITLE: + SET_CDTEXT_FIELD(CDTEXT_TITLE); + break; + case CDIO_CDTEXT_PERFORMER: + SET_CDTEXT_FIELD(CDTEXT_PERFORMER); + break; + case CDIO_CDTEXT_SONGWRITER: + SET_CDTEXT_FIELD(CDTEXT_SONGWRITER); + break; + case CDIO_CDTEXT_COMPOSER: + SET_CDTEXT_FIELD(CDTEXT_COMPOSER); + break; + case CDIO_CDTEXT_ARRANGER: + SET_CDTEXT_FIELD(CDTEXT_ARRANGER); + break; + case CDIO_CDTEXT_MESSAGE: + SET_CDTEXT_FIELD(CDTEXT_MESSAGE); + break; + case CDIO_CDTEXT_DISCID: + SET_CDTEXT_FIELD(CDTEXT_DISCID); + break; + case CDIO_CDTEXT_GENRE: + SET_CDTEXT_FIELD(CDTEXT_GENRE); + break; + default : b_field_set = false; + } + if (b_field_set) { + b_ret = true; + i_track++; + idx = 0; + } + } else { + buffer[idx++] = pdata->text[j]; + } + buffer[idx] = 0x00; + } + } + pdata++; + } + return b_ret; +} + |