439 lines
11 KiB
C
439 lines
11 KiB
C
/*
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Copyright (C) 2004, 2005, 2008, 2011 Rocky Bernstein <rocky@gnu.org>
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toc reading routine adapted from cuetools
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Copyright (C) 2003 Svend Sanjay Sorensen <ssorensen@fastmail.fm>
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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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#ifdef HAVE_CONFIG_H
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# include "config.h"
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# define __CDIO_CONFIG_H__ 1
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#endif
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#include <cdio/cdtext.h>
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#include <cdio/logging.h>
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#include "cdtext_private.h"
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#ifdef HAVE_STDLIB_H
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#include <stdlib.h>
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#endif
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#ifdef HAVE_STRING_H
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#include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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#include <strings.h>
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#endif
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#define _CDTEXT_DBCC
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/*! Note: the order and number items (except CDTEXT_INVALID) should
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match the cdtext_field_t enumeration. */
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static const char cdtext_keywords[][16] =
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{
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"ARRANGER",
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"COMPOSER",
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"DISC_ID",
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"GENRE",
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"MESSAGE",
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"ISRC",
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"PERFORMER",
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"SIZE_INFO",
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"SONGWRITER",
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"TITLE",
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"TOC_INFO",
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"TOC_INFO2",
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"UPC_EAN",
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};
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static const char cdtext_genre[][30] =
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{
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"Not Used",
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"Not Defined",
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"Adult Contemporary",
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"Alternative Rock",
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"Childrens Music",
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"Classical",
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"Contemporary Christian",
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"Country",
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"Dance",
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"Easy Listening",
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"Erotic",
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"Folk",
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"Gospel",
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"Hip Hop",
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"Jazz",
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"Latin",
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"Musical",
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"New Age",
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"Opera",
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"Operetta",
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"Pop Music",
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"Rap",
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"Reggae",
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"Rock Music",
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"Rhythm & Blues",
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"Sound Effects",
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"Spoken Word",
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"World Music"
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};
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/*! Return string representation of the enum values above */
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const char *
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cdtext_field2str (cdtext_field_t i)
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{
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if (i >= MAX_CDTEXT_FIELDS)
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return "Invalid CDTEXT field index";
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else
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return cdtext_keywords[i];
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}
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/*! Return string representation of the given genre oode */
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const char *
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cdtext_genre2str (cdtext_genre_t i)
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{
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if (i >= MAX_CDTEXT_GENRE_CODE)
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return "Invalid genre code";
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else
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return cdtext_genre[i];
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}
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/*! Free memory assocated with cdtext*/
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void
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cdtext_destroy (cdtext_t *p_cdtext)
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{
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cdtext_field_t i;
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track_t i2;
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if (!p_cdtext) return;
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for (i2=0; i2<=99; i2++) {
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for (i=0; i < MAX_CDTEXT_FIELDS; i++) {
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if (p_cdtext->track[i2].field[i]) {
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free(p_cdtext->track[i2].field[i]);
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p_cdtext->track[i2].field[i] = NULL;
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}
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}
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}
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}
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/*!
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returns the CDTEXT value associated with key. NULL is returned
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if key is CDTEXT_INVALID or the field is not set.
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*/
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char *
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cdtext_get (cdtext_field_t key, track_t track, const cdtext_t *p_cdtext)
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{
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const char *ret = cdtext_get_const(key, track, p_cdtext);
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if (NULL == ret)
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return NULL;
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else
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return strdup(ret);
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}
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const char *
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cdtext_get_const (cdtext_field_t key, track_t track, const cdtext_t *p_cdtext)
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{
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if (CDTEXT_INVALID == key
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|| NULL == p_cdtext
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|| 0 > track
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|| 99 < track)
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return NULL;
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return p_cdtext->track[track].field[key];
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}
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/*! Initialize a new cdtext structure.
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When the structure is no longer needed, release the
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resources using cdtext_delete.
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*/
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void
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cdtext_init (cdtext_t *p_cdtext)
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{
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cdtext_field_t i;
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track_t i2;
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for (i2=0; i2<=99; i2++) {
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for (i=0; i < MAX_CDTEXT_FIELDS; i++) {
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p_cdtext->track[i2].field[i] = NULL;
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}
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}
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p_cdtext->genre_code = CDIO_CDTEXT_GENRE_UNUSED;
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p_cdtext->language[0] = '\0';
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p_cdtext->encoding[0] = '\0';
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p_cdtext->block = 0;
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}
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/*!
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returns associated cdtext_field_t if field is a CD-TEXT keyword, returns non-zero otherwise
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*/
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cdtext_field_t
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cdtext_is_keyword (const char *key)
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{
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unsigned int i;
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for (i = 0; i < 13 ; i++)
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if (0 == strcmp (cdtext_keywords[i], key)) {
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return i;
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}
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return CDTEXT_INVALID;
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}
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/*! sets cdtext's keyword entry to field.
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*/
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void
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cdtext_set (cdtext_field_t key, track_t track, const char *p_value, cdtext_t *p_cdtext)
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{
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if (NULL == p_value || key == CDTEXT_INVALID || 0 > track || 99 < track) return;
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if (p_cdtext->track[track].field[key])
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free (p_cdtext->track[track].field[key]);
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p_cdtext->track[track].field[key] = strdup (p_value);
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}
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#define SET_CDTEXT_FIELD(FIELD) \
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cdtext_set(FIELD, i_track, buffer, p_cdtext);
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/*
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parse all CD-TEXT data retrieved.
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*/
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bool
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cdtext_data_init(cdtext_t *p_cdtext, uint8_t *wdata, size_t i_data)
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{
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CDText_data_t *p_data;
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int i;
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int j;
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char buffer[256];
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int idx;
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int i_track;
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bool b_ret = false;
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int block = 0;
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CDText_blocksize_t p_blocksize;
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memset( buffer, 0x00, sizeof(buffer) );
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idx = 0;
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bzero(&p_blocksize, sizeof(CDText_blocksize_t));
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p_data = (CDText_data_t *) wdata;
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if (0 != i_data % sizeof(CDText_data_t)) {
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cdio_warn("CD-Text size is not multiple of pack size");
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return false;
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}
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for( i = -1; i_data > 0; i_data -= sizeof(CDText_data_t), p_data++ ) {
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#ifndef _CDTEXT_DBCC
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if ( p_data->bDBC ) {
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cdio_warn("Double-byte characters not supported");
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return false;
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}
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#endif
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if ( p_data->seq != ++i || p_data->block != block ) break;
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/* only handle character packs */
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if ( ((p_data->type >= 0x80) && (p_data->type <= 0x87)) ||
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(p_data->type == 0x8E))
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{
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i_track = p_data->i_track;
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j = 0;
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if (CDIO_CDTEXT_GENRE == p_data->type) {
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j = 2;
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if (CDIO_CDTEXT_GENRE_UNUSED == p_cdtext->genre_code) {
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p_cdtext->genre_code = CDTEXT_GET_LEN16(p_data->text);
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}
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}
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#ifdef _CDTEXT_DBCC
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for( ; j < CDIO_CDTEXT_MAX_TEXT_DATA; (p_data->bDBC ? j+=2 : j++) ) {
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if( p_data->text[j] == 0x00 && (!p_data->bDBC || p_data->text[j+1] == 0x00)) {
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if((buffer[0] != 0x00) && (!p_data->bDBC || buffer[1] != 0x00)) {
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#else
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for( ; j < CDIO_CDTEXT_MAX_TEXT_DATA; j++) {
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if( p_data->text[j] == 0x00) {
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if(buffer[0] != 0x00) {
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#endif
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/* omit empty strings */
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switch( p_data->type) {
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case CDIO_CDTEXT_TITLE:
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SET_CDTEXT_FIELD(CDTEXT_TITLE);
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break;
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case CDIO_CDTEXT_PERFORMER:
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SET_CDTEXT_FIELD(CDTEXT_PERFORMER);
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break;
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case CDIO_CDTEXT_SONGWRITER:
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SET_CDTEXT_FIELD(CDTEXT_SONGWRITER);
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break;
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case CDIO_CDTEXT_COMPOSER:
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SET_CDTEXT_FIELD(CDTEXT_COMPOSER);
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break;
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case CDIO_CDTEXT_ARRANGER:
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SET_CDTEXT_FIELD(CDTEXT_ARRANGER);
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break;
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case CDIO_CDTEXT_MESSAGE:
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SET_CDTEXT_FIELD(CDTEXT_MESSAGE);
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break;
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case CDIO_CDTEXT_DISCID:
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if(i_track == 0) {
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SET_CDTEXT_FIELD(CDTEXT_DISCID);
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}
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break;
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case CDIO_CDTEXT_UPC:
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if(i_track == 0) {
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SET_CDTEXT_FIELD(CDTEXT_UPC_EAN);
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}
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else {
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SET_CDTEXT_FIELD(CDTEXT_ISRC);
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}
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break;
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case CDIO_CDTEXT_GENRE:
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SET_CDTEXT_FIELD(CDTEXT_GENRE);
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break;
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}
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b_ret = true;
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i_track++;
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idx = 0;
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}
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} else {
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buffer[idx++] = p_data->text[j];
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#ifdef _CDTEXT_DBCC
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if(p_data->bDBC)
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buffer[idx++] = p_data->text[j+1];
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#endif
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}
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buffer[idx] = 0x00;
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#ifdef _CDTEXT_DBCC
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if(p_data->bDBC)
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buffer[idx+1] = 0x00;
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#endif
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}
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} else {
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/* not a character pack */
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if(p_data->type == CDIO_CDTEXT_TOC) {
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/* no idea what this is */
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}
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if (p_data->type == CDIO_CDTEXT_TOC2) {
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/* no idea what this is */
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}
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/* i got this info from cdrtools' cdda2wav; all the tests i ran so far were successful */
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if (p_data->type == CDIO_CDTEXT_BLOCKSIZE) {
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/* i_track is the pack element number in this case */
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switch(p_data->i_track){
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case 0:
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memcpy((char*)&p_blocksize,p_data->text,0x0c);
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break;
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case 1:
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memcpy(((char*)&p_blocksize)+0x0c,p_data->text,0x0c);
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break;
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case 2:
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memcpy(((char*)&p_blocksize)+0x18,p_data->text,0x0c);
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break;
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}
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}
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}
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}
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if (p_blocksize.i_packs[15] >= 3) {
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/* if there were more than 3 BLOCKSIZE packs */
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switch (p_blocksize.charcode){
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case CDIO_CDTEXT_CHARCODE_ISO_8859_1:
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strcpy(p_cdtext->encoding, "ISO-8859-1");
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break;
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case CDIO_CDTEXT_CHARCODE_ASCII:
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strcpy(p_cdtext->encoding, "ASCII");
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break;
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case CDIO_CDTEXT_CHARCODE_KANJI:
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strcpy(p_cdtext->encoding, "Shift-JIS");
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break;
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}
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/* set ISO 639-1 code */
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switch (p_blocksize.langcode[block]) {
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case CDIO_CDTEXT_LANG_CZECH :
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strcpy(p_cdtext->language, "cs");
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break;
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case CDIO_CDTEXT_LANG_DANISH :
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strcpy(p_cdtext->language, "da");
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break;
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case CDIO_CDTEXT_LANG_GERMAN :
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strcpy(p_cdtext->language, "de");
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break;
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case CDIO_CDTEXT_LANG_ENGLISH :
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strcpy(p_cdtext->language, "en");
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break;
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case CDIO_CDTEXT_LANG_SPANISH :
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strcpy(p_cdtext->language, "es");
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break;
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case CDIO_CDTEXT_LANG_FRENCH :
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strcpy(p_cdtext->language, "fr");
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break;
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case CDIO_CDTEXT_LANG_ITALIAN :
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strcpy(p_cdtext->language, "it");
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break;
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case CDIO_CDTEXT_LANG_HUNGARIAN :
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strcpy(p_cdtext->language, "hu");
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break;
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case CDIO_CDTEXT_LANG_DUTCH :
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strcpy(p_cdtext->language, "nl");
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break;
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case CDIO_CDTEXT_LANG_NORWEGIAN :
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strcpy(p_cdtext->language, "no");
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break;
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case CDIO_CDTEXT_LANG_POLISH :
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strcpy(p_cdtext->language, "pl");
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break;
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case CDIO_CDTEXT_LANG_PORTUGUESE :
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strcpy(p_cdtext->language, "pt");
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break;
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case CDIO_CDTEXT_LANG_SLOVENE :
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strcpy(p_cdtext->language, "sl");
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break;
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case CDIO_CDTEXT_LANG_FINNISH :
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strcpy(p_cdtext->language, "fi");
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break;
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case CDIO_CDTEXT_LANG_SWEDISH :
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strcpy(p_cdtext->language, "sv");
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break;
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case CDIO_CDTEXT_LANG_RUSSIAN :
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strcpy(p_cdtext->language, "ru");
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break;
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case CDIO_CDTEXT_LANG_KOREAN :
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strcpy(p_cdtext->language, "ko");
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break;
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case CDIO_CDTEXT_LANG_JAPANESE :
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strcpy(p_cdtext->language, "ja");
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break;
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case CDIO_CDTEXT_LANG_GREEK :
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strcpy(p_cdtext->language, "el");
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break;
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case CDIO_CDTEXT_LANG_CHINESE :
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strcpy(p_cdtext->language, "zh");
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break;
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}
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}
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return b_ret;
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}
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