1273 lines
34 KiB
C
1273 lines
34 KiB
C
/*
|
||
$Id: cdrdao.c,v 1.9 2004/06/01 11:15:58 rocky Exp $
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|
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Copyright (C) 2004 Rocky Bernstein <rocky@panix.com>
|
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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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|
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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 2 of the License, or
|
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(at your option) any later version.
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||
|
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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
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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, write to the Free Software
|
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/* This code implements low-level access functions for a CD images
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||
residing inside a disk file (*.bin) and its associated cue sheet.
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(*.cue).
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*/
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static const char _rcsid[] = "$Id: cdrdao.c,v 1.9 2004/06/01 11:15:58 rocky Exp $";
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#include "cdio_assert.h"
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#include "cdio_private.h"
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#include "_cdio_stdio.h"
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#include <cdio/logging.h>
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#include <cdio/sector.h>
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#include <cdio/util.h>
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#ifdef HAVE_STDIO_H
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#include <stdio.h>
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#endif
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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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#ifdef HAVE_GLOB_H
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#include <glob.h>
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#endif
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#ifdef HAVE_ERRNO_H
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#include <errno.h>
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#endif
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#include <ctype.h>
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||
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/* FIXME: should put in a common definition somewhere. */
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#ifdef HAVE_MEMSET
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#define BZERO(ptr, size) memset(ptr, 0, size)
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#elif HAVE_BZERO
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#define BZERO(ptr, size) bzero(ptr, size)
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#else
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Error -- you need either memset or bzero
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#endif
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/* reader */
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#define DEFAULT_CDIO_DEVICE "videocd.bin"
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#define DEFAULT_CDIO_CDRDAO "videocd.toc"
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typedef struct {
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track_t track_num; /* Probably is index+1 */
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msf_t start_msf;
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lba_t start_lba;
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lba_t length;
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lba_t pregap;
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int start_index;
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int sec_count; /* Number of sectors in this track. Does not
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include pregap */
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int num_indices;
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int flags; /* "DCP", "4CH", "PRE" */
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char *isrc; /* IRSC Code (5.22.4) exactly 12 bytes. */
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char *filename; /* name given inside TOC file. */
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CdioDataSource *data_source;
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track_format_t track_format;
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bool track_green;
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uint16_t datasize; /* How much is in the portion we return back? */
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uint16_t datastart; /* Offset from begining that data starts */
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uint16_t endsize; /* How much stuff at the end to skip over. This
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stuff may have error correction (EDC, or ECC).*/
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uint16_t blocksize; /* total block size = start + size + end */
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} track_info_t;
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typedef struct {
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/* Things common to all drivers like this.
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This must be first. */
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generic_img_private_t gen;
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internal_position_t pos;
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bool sector_2336; /* Playstation (PSX) uses 2336-byte sectors */
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char *toc_name;
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char *mcn; /* Media Catalog Number (5.22.3)
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exactly 13 bytes */
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track_info_t tocent[100]; /* entry info for each track */
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track_t i_tracks; /* number of tracks in image */
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track_t i_first_track; /* track number of first track */
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track_format_t mode;
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bool b_have_cdrdao;
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} _img_private_t;
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static uint32_t _stat_size_cdrdao (void *user_data);
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static bool parse_tocfile (_img_private_t *cd, const char *toc_name);
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#include "image_common.h"
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/* returns 0 if field is a CD-TEXT keyword, returns non-zero otherwise */
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static int
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cdtext_is_keyword (char *key)
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{
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const char *cdtext_keywords[] =
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{
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"ARRANGER", /* name(s) of the arranger(s) */
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"COMPOSER", /* name(s) of the composer(s) */
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"DISC ID", /* disc identification information */
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"GENRE", /* genre identification and genre information */
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"ISRC", /* ISRC code of each track */
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"MESSAGE", /* message(s) from the content provider and/or artist */
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"PERFORMER", /* name(s) of the performer(s) */
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"SIZE_INFO", /* size information of the block */
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"SONGWRITER", /* name(s) of the songwriter(s) */
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"TITLE", /* title of album name or track titles */
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"TOC_INFO", /* table of contents information */
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"TOC_INFO2" /* second table of contents information */
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"UPC_EAN",
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};
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||
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char *item;
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item = bsearch(key,
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cdtext_keywords, 12,
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||
sizeof (char *),
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||
(int (*)(const void *, const void *))
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strcmp);
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return (NULL != item) ? 0 : 1;
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}
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static lba_t
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msf_to_lba (int minutes, int seconds, int frames)
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{
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return ((minutes * CDIO_CD_SECS_PER_MIN + seconds) * CDIO_CD_FRAMES_PER_SEC
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+ frames);
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||
}
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||
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static lba_t
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msf_lba_from_mmssff (char *s)
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{
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||
int field;
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lba_t ret;
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char c;
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if (0 == strcmp (s, "0"))
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return 0;
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c = *s++;
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if(c >= '0' && c <= '9')
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field = (c - '0');
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else
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return CDIO_INVALID_LBA;
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while(':' != (c = *s++)) {
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if(c >= '0' && c <= '9')
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field = field * 10 + (c - '0');
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else
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return CDIO_INVALID_LBA;
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}
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ret = msf_to_lba (field, 0, 0);
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c = *s++;
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if(c >= '0' && c <= '9')
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field = (c - '0');
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else
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return CDIO_INVALID_LBA;
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if(':' != (c = *s++)) {
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if(c >= '0' && c <= '9') {
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field = field * 10 + (c - '0');
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c = *s++;
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if(c != ':')
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return CDIO_INVALID_LBA;
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}
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else
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return CDIO_INVALID_LBA;
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}
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if(field >= CDIO_CD_SECS_PER_MIN)
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return CDIO_INVALID_LBA;
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ret += msf_to_lba (0, field, 0);
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c = *s++;
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if (isdigit(c))
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field = (c - '0');
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else
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return -1;
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if('\0' != (c = *s++)) {
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if (isdigit(c)) {
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field = field * 10 + (c - '0');
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c = *s++;
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}
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else
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return CDIO_INVALID_LBA;
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}
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||
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if('\0' != c)
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return -1;
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if(field >= CDIO_CD_FRAMES_PER_SEC)
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return CDIO_INVALID_LBA;
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ret += field;
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return ret;
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}
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/*!
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Initialize image structures.
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*/
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static bool
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_init_cdrdao (_img_private_t *env)
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{
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lsn_t lead_lsn;
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if (env->gen.init)
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return false;
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/* Have to set init before calling _stat_size_cdrdao() or we will
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get into infinite recursion calling passing right here.
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*/
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env->gen.init = true;
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env->i_first_track = 1;
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env->mcn = NULL;
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/* Read in TOC sheet. */
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if ( !parse_tocfile(env, env->toc_name) ) return false;
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lead_lsn = _stat_size_cdrdao( (_img_private_t *) env);
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if (-1 == lead_lsn)
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return false;
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/* Fake out leadout track and sector count for last track*/
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cdio_lsn_to_msf (lead_lsn, &env->tocent[env->i_tracks].start_msf);
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env->tocent[env->i_tracks].start_lba = cdio_lsn_to_lba(lead_lsn);
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env->tocent[env->i_tracks-env->i_first_track].sec_count =
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cdio_lsn_to_lba(lead_lsn - env->tocent[env->i_tracks-1].start_lba);
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return true;
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}
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/*!
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Reads into buf the next size bytes.
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Returns -1 on error.
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Would be libc's seek() but we have to adjust for the extra track header
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information in each sector.
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*/
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static off_t
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_lseek_cdrdao (void *user_data, off_t offset, int whence)
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{
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_img_private_t *env = user_data;
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/* real_offset is the real byte offset inside the disk image
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The number below was determined empirically. I'm guessing
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the 1st 24 bytes of a bin file are used for something.
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*/
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off_t real_offset=0;
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unsigned int i;
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env->pos.lba = 0;
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for (i=0; i<env->i_tracks; i++) {
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track_info_t *this_track=&(env->tocent[i]);
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env->pos.index = i;
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if ( (this_track->sec_count*this_track->datasize) >= offset) {
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int blocks = offset / this_track->datasize;
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int rem = offset % this_track->datasize;
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int block_offset = blocks * this_track->blocksize;
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real_offset += block_offset + rem;
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env->pos.buff_offset = rem;
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env->pos.lba += blocks;
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break;
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}
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real_offset += this_track->sec_count*this_track->blocksize;
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offset -= this_track->sec_count*this_track->datasize;
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env->pos.lba += this_track->sec_count;
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}
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if (i==env->i_tracks) {
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cdio_warn ("seeking outside range of disk image");
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return -1;
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} else {
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real_offset += env->tocent[i].datastart;
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return cdio_stream_seek(env->tocent[i].data_source, real_offset, whence);
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}
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}
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|
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/*!
|
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Reads into buf the next size bytes.
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||
Returns -1 on error.
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||
FIXME:
|
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At present we assume a read doesn't cross sector or track
|
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boundaries.
|
||
*/
|
||
static ssize_t
|
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_read_cdrdao (void *user_data, void *data, size_t size)
|
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{
|
||
_img_private_t *env = user_data;
|
||
char buf[CDIO_CD_FRAMESIZE_RAW] = { 0, };
|
||
char *p = data;
|
||
ssize_t final_size=0;
|
||
ssize_t this_size;
|
||
track_info_t *this_track=&(env->tocent[env->pos.index]);
|
||
ssize_t skip_size = this_track->datastart + this_track->endsize;
|
||
|
||
while (size > 0) {
|
||
int rem = this_track->datasize - env->pos.buff_offset;
|
||
if (size <= rem) {
|
||
this_size = cdio_stream_read(this_track->data_source, buf, size, 1);
|
||
final_size += this_size;
|
||
memcpy (p, buf, this_size);
|
||
break;
|
||
}
|
||
|
||
/* Finish off reading this sector. */
|
||
cdio_warn ("Reading across block boundaries not finished");
|
||
|
||
size -= rem;
|
||
this_size = cdio_stream_read(this_track->data_source, buf, rem, 1);
|
||
final_size += this_size;
|
||
memcpy (p, buf, this_size);
|
||
p += this_size;
|
||
this_size = cdio_stream_read(this_track->data_source, buf, rem, 1);
|
||
|
||
/* Skip over stuff at end of this sector and the beginning of the next.
|
||
*/
|
||
cdio_stream_read(this_track->data_source, buf, skip_size, 1);
|
||
|
||
/* Get ready to read another sector. */
|
||
env->pos.buff_offset=0;
|
||
env->pos.lba++;
|
||
|
||
/* Have gone into next track. */
|
||
if (env->pos.lba >= env->tocent[env->pos.index+1].start_lba) {
|
||
env->pos.index++;
|
||
this_track=&(env->tocent[env->pos.index]);
|
||
skip_size = this_track->datastart + this_track->endsize;
|
||
}
|
||
}
|
||
return final_size;
|
||
}
|
||
|
||
/*!
|
||
Return the size of the CD in logical block address (LBA) units.
|
||
*/
|
||
static uint32_t
|
||
_stat_size_cdrdao (void *user_data)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
long size;
|
||
int blocksize = env->sector_2336
|
||
? M2RAW_SECTOR_SIZE : CDIO_CD_FRAMESIZE_RAW;
|
||
|
||
size = cdio_stream_stat (env->tocent[0].data_source);
|
||
|
||
if (size % blocksize)
|
||
{
|
||
cdio_warn ("image %s size (%ld) not multiple of blocksize (%d)",
|
||
env->tocent[0].filename, size, blocksize);
|
||
if (size % M2RAW_SECTOR_SIZE == 0)
|
||
cdio_warn ("this may be a 2336-type disc image");
|
||
else if (size % CDIO_CD_FRAMESIZE_RAW == 0)
|
||
cdio_warn ("this may be a 2352-type disc image");
|
||
/* exit (EXIT_FAILURE); */
|
||
}
|
||
|
||
size /= blocksize;
|
||
|
||
return size;
|
||
}
|
||
|
||
#define MAXLINE 512
|
||
#define UNIMPLIMENTED_MSG \
|
||
cdio_log(log_level, "%s line %d: unimplimented keyword: %s", \
|
||
toc_name, line_num, keyword)
|
||
|
||
|
||
static bool
|
||
parse_tocfile (_img_private_t *cd, const char *toc_name)
|
||
{
|
||
char line[MAXLINE];
|
||
FILE *fp;
|
||
unsigned int line_num=0;
|
||
char *keyword, *field;
|
||
int i = -1;
|
||
cdio_log_level_t log_level = (NULL == cd) ? CDIO_LOG_INFO : CDIO_LOG_WARN;
|
||
|
||
if (NULL == toc_name)
|
||
return false;
|
||
|
||
fp = fopen (toc_name, "r");
|
||
if (fp == NULL) {
|
||
cdio_log(log_level, "error opening %s for reading: %s",
|
||
toc_name, strerror(errno));
|
||
return false;
|
||
}
|
||
|
||
while ((fgets(line, MAXLINE, fp)) != NULL) {
|
||
|
||
line_num++;
|
||
|
||
/* strip comment from line */
|
||
/* todo: // in quoted strings? */
|
||
/* //comment */
|
||
if (NULL != (field = strstr (line, "//")))
|
||
*field = '\0';
|
||
|
||
if (NULL != (keyword = strtok (line, " \t\n\r"))) {
|
||
/* CATALOG "ddddddddddddd" */
|
||
if (0 == strcmp ("CATALOG", keyword)) {
|
||
if (-1 == i) {
|
||
if (NULL != (field = strtok (NULL, "\"\t\n\r"))) {
|
||
if (13 != strlen(field)) {
|
||
cdio_log(log_level,
|
||
"%s line %d after word CATALOG:",
|
||
toc_name, line_num);
|
||
cdio_log(log_level,
|
||
"Token %s has length %ld. Should be 13 digits.",
|
||
field, (long int) strlen(field));
|
||
|
||
goto err_exit;
|
||
} else {
|
||
/* Check that we have all digits*/
|
||
unsigned int i;
|
||
for (i=0; i<13; i++) {
|
||
if (!isdigit(field[i])) {
|
||
cdio_log(log_level,
|
||
"%s line %d after word CATALOG:",
|
||
toc_name, line_num);
|
||
cdio_log(log_level,
|
||
"Token %s is not all digits.", field);
|
||
goto err_exit;
|
||
}
|
||
}
|
||
if (NULL != cd) cd->mcn = strdup (field);
|
||
}
|
||
} else {
|
||
cdio_log(log_level,
|
||
"%s line %d after word CATALOG:",
|
||
toc_name, line_num);
|
||
cdio_log(log_level, "Expecting 13 digits; nothing seen.");
|
||
goto err_exit;
|
||
}
|
||
} else {
|
||
goto err_exit;
|
||
}
|
||
|
||
/* CD_DA | CD_ROM | CD_ROM_XA */
|
||
} else if (0 == strcmp ("CD_DA", keyword)) {
|
||
if (-1 == i) {
|
||
if (NULL != cd)
|
||
cd->mode = TRACK_FORMAT_AUDIO;
|
||
} else {
|
||
goto not_in_global_section;
|
||
}
|
||
} else if (0 == strcmp ("CD_ROM", keyword)) {
|
||
if (-1 == i) {
|
||
if (NULL != cd)
|
||
cd->mode = TRACK_FORMAT_DATA;
|
||
} else {
|
||
goto not_in_global_section;
|
||
}
|
||
|
||
} else if (0 == strcmp ("CD_ROM_XA", keyword)) {
|
||
if (-1 == i) {
|
||
if (NULL != cd)
|
||
cd->mode = TRACK_FORMAT_XA;
|
||
} else {
|
||
goto not_in_global_section;
|
||
}
|
||
|
||
/* TRACK <track-mode> [<sub-channel-mode>] */
|
||
} else if (0 == strcmp ("TRACK", keyword)) {
|
||
i++;
|
||
/* cd->tocent[i].cdtext = NULL; */
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
if (0 == strcmp ("AUDIO", field)) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].track_format = TRACK_FORMAT_AUDIO;
|
||
cd->tocent[i].blocksize = CDIO_CD_FRAMESIZE_RAW;
|
||
cd->tocent[i].datasize = CDIO_CD_FRAMESIZE_RAW;
|
||
cd->tocent[i].datastart = 0;
|
||
cd->tocent[i].endsize = 0;
|
||
}
|
||
} else if (0 == strcmp ("MODE1", field)) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].track_format = TRACK_FORMAT_DATA;
|
||
cd->tocent[i].blocksize = CDIO_CD_FRAMESIZE_RAW;
|
||
cd->tocent[i].datastart = CDIO_CD_SYNC_SIZE
|
||
+ CDIO_CD_HEADER_SIZE;
|
||
cd->tocent[i].datasize = CDIO_CD_FRAMESIZE;
|
||
cd->tocent[i].endsize = CDIO_CD_EDC_SIZE
|
||
+ CDIO_CD_M1F1_ZERO_SIZE + CDIO_CD_ECC_SIZE;
|
||
}
|
||
} else if (0 == strcmp ("MODE1_RAW", field)) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].track_format = TRACK_FORMAT_DATA;
|
||
cd->tocent[i].blocksize = CDIO_CD_FRAMESIZE_RAW;
|
||
cd->tocent[i].datastart = CDIO_CD_SYNC_SIZE
|
||
+ CDIO_CD_HEADER_SIZE;
|
||
cd->tocent[i].datasize = CDIO_CD_FRAMESIZE;
|
||
cd->tocent[i].endsize = CDIO_CD_EDC_SIZE
|
||
+ CDIO_CD_M1F1_ZERO_SIZE + CDIO_CD_ECC_SIZE;
|
||
}
|
||
} else if (0 == strcmp ("MODE2", field)) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].track_format = TRACK_FORMAT_XA;
|
||
cd->tocent[i].datastart = CDIO_CD_SYNC_SIZE
|
||
+ CDIO_CD_HEADER_SIZE;
|
||
cd->tocent[i].datasize = M2RAW_SECTOR_SIZE;
|
||
cd->tocent[i].endsize = 0;
|
||
}
|
||
} else if (0 == strcmp ("MODE2_FORM1", field)) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].track_format = TRACK_FORMAT_XA;
|
||
cd->tocent[i].datastart = CDIO_CD_SYNC_SIZE
|
||
+ CDIO_CD_HEADER_SIZE;
|
||
cd->tocent[i].datasize = CDIO_CD_FRAMESIZE_RAW;
|
||
cd->tocent[i].endsize = 0;
|
||
}
|
||
} else if (0 == strcmp ("MODE2_FORM2", field)) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].track_format = TRACK_FORMAT_XA;
|
||
cd->tocent[i].datastart = CDIO_CD_SYNC_SIZE
|
||
+ CDIO_CD_HEADER_SIZE + CDIO_CD_SUBHEADER_SIZE;
|
||
cd->tocent[i].datasize = CDIO_CD_FRAMESIZE;
|
||
cd->tocent[i].endsize = CDIO_CD_SYNC_SIZE
|
||
+ CDIO_CD_ECC_SIZE;
|
||
}
|
||
} else if (0 == strcmp ("MODE2_FORM_MIX", field)) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].track_format = TRACK_FORMAT_XA;
|
||
cd->tocent[i].datasize = M2RAW_SECTOR_SIZE;
|
||
cd->tocent[i].blocksize = CDIO_CD_FRAMESIZE_RAW;
|
||
cd->tocent[i].datastart = CDIO_CD_SYNC_SIZE +
|
||
CDIO_CD_HEADER_SIZE + CDIO_CD_SUBHEADER_SIZE;
|
||
cd->tocent[i].track_green = true;
|
||
cd->tocent[i].endsize = 0;
|
||
}
|
||
} else if (0 == strcmp ("MODE2_RAW", field)) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].track_format = TRACK_FORMAT_XA;
|
||
cd->tocent[i].blocksize = CDIO_CD_FRAMESIZE_RAW;
|
||
cd->tocent[i].datastart = CDIO_CD_SYNC_SIZE +
|
||
CDIO_CD_HEADER_SIZE + CDIO_CD_SUBHEADER_SIZE;
|
||
cd->tocent[i].datasize = CDIO_CD_FRAMESIZE;
|
||
cd->tocent[i].track_green = true;
|
||
cd->tocent[i].endsize = 0;
|
||
}
|
||
} else {
|
||
cdio_log(log_level, "%s line %d after TRACK:",
|
||
toc_name, line_num);
|
||
cdio_log(log_level, "'%s' not a valid mode.", field);
|
||
goto err_exit;
|
||
}
|
||
}
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
/* todo: set sub-channel-mode */
|
||
if (0 == strcmp ("RW", field))
|
||
;
|
||
else if (0 == strcmp ("RW_RAW", field))
|
||
;
|
||
}
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
goto format_error;
|
||
}
|
||
|
||
/* track flags */
|
||
/* [NO] COPY | [NO] PRE_EMPHASIS */
|
||
} else if (0 == strcmp ("NO", keyword)) {
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
if (0 == strcmp ("COPY", field)) {
|
||
if (NULL != cd)
|
||
cd->tocent[i].flags &= ~CDIO_TRACK_FLAG_COPY_PERMITTED;
|
||
|
||
} else if (0 == strcmp ("PRE_EMPHASIS", field))
|
||
if (NULL != cd) {
|
||
cd->tocent[i].flags &= ~CDIO_TRACK_FLAG_PRE_EMPHASIS;
|
||
goto err_exit;
|
||
}
|
||
} else {
|
||
goto format_error;
|
||
}
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
goto format_error;
|
||
}
|
||
} else if (0 == strcmp ("COPY", keyword)) {
|
||
if (NULL != cd)
|
||
cd->tocent[i].flags |= CDIO_TRACK_FLAG_COPY_PERMITTED;
|
||
} else if (0 == strcmp ("PRE_EMPHASIS", keyword)) {
|
||
if (NULL != cd)
|
||
cd->tocent[i].flags |= CDIO_TRACK_FLAG_PRE_EMPHASIS;
|
||
/* TWO_CHANNEL_AUDIO */
|
||
} else if (0 == strcmp ("TWO_CHANNEL_AUDIO", keyword)) {
|
||
if (NULL != cd)
|
||
cd->tocent[i].flags &= ~CDIO_TRACK_FLAG_FOUR_CHANNEL_AUDIO;
|
||
/* FOUR_CHANNEL_AUDIO */
|
||
} else if (0 == strcmp ("FOUR_CHANNEL_AUDIO", keyword)) {
|
||
if (NULL != cd)
|
||
cd->tocent[i].flags |= CDIO_TRACK_FLAG_FOUR_CHANNEL_AUDIO;
|
||
|
||
/* ISRC "CCOOOYYSSSSS" */
|
||
} else if (0 == strcmp ("ISRC", keyword)) {
|
||
if (NULL != (field = strtok (NULL, "\"\t\n\r"))) {
|
||
if (NULL != cd)
|
||
cd->tocent[i].isrc = strdup(field);
|
||
} else {
|
||
goto format_error;
|
||
}
|
||
|
||
/* SILENCE <length> */
|
||
} else if (0 == strcmp ("SILENCE", keyword)) {
|
||
UNIMPLIMENTED_MSG;
|
||
|
||
/* ZERO <length> */
|
||
} else if (0 == strcmp ("ZERO", keyword)) {
|
||
UNIMPLIMENTED_MSG;
|
||
|
||
/* [FILE|AUDIOFILE] "<filename>" <start> [<length>] */
|
||
} else if (0 == strcmp ("FILE", keyword)
|
||
|| 0 == strcmp ("AUDIOFILE", keyword)) {
|
||
if (0 <= i) {
|
||
if (NULL != (field = strtok (NULL, "\"\t\n\r"))) {
|
||
if (NULL != cd) {
|
||
cd->tocent[i].filename = strdup (field);
|
||
/* Todo: do something about reusing existing files. */
|
||
if (!(cd->tocent[i].data_source = cdio_stdio_new (field))) {
|
||
cdio_warn ("%s line %d: can't open file `%s' for reading",
|
||
toc_name, line_num, field);
|
||
goto err_exit;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
lba_t lba = cdio_lsn_to_lba(msf_lba_from_mmssff (field));
|
||
if (CDIO_INVALID_LBA == lba) {
|
||
cdio_log(log_level, "%s line %d: invalid MSF string %s",
|
||
toc_name, line_num, field);
|
||
goto err_exit;
|
||
}
|
||
|
||
if (NULL != cd) {
|
||
cd->tocent[i].start_lba = lba;
|
||
cdio_lba_to_msf(lba, &(cd->tocent[i].start_msf));
|
||
}
|
||
}
|
||
if (NULL != (field = strtok (NULL, " \t\n\r")))
|
||
if (NULL != cd)
|
||
cd->tocent[i].length = msf_lba_from_mmssff (field);
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
goto format_error;
|
||
}
|
||
} else {
|
||
goto not_in_global_section;
|
||
}
|
||
|
||
/* DATAFILE "<filename>" <start> [<length>] */
|
||
} else if (0 == strcmp ("DATAFILE", keyword)) {
|
||
goto unimplimented_error;
|
||
|
||
/* FIFO "<fifo path>" [<length>] */
|
||
} else if (0 == strcmp ("FIFO", keyword)) {
|
||
goto unimplimented_error;
|
||
|
||
/* START MM:SS:FF */
|
||
} else if (0 == strcmp ("START", keyword)) {
|
||
if (0 <= i) {
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
/* todo: line is too long! */
|
||
if (NULL != cd) {
|
||
cd->tocent[i].start_lba += msf_lba_from_mmssff (field);
|
||
cdio_lba_to_msf(cd->tocent[i].start_lba,
|
||
&(cd->tocent[i].start_msf));
|
||
}
|
||
}
|
||
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
goto format_error;
|
||
}
|
||
} else {
|
||
goto not_in_global_section;
|
||
}
|
||
|
||
/* PREGAP MM:SS:FF */
|
||
} else if (0 == strcmp ("PREGAP", keyword)) {
|
||
if (0 <= i) {
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
if (NULL != cd)
|
||
cd->tocent[i].pregap = msf_lba_from_mmssff (field);
|
||
} else {
|
||
goto format_error;
|
||
}
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
goto format_error;
|
||
}
|
||
} else {
|
||
goto not_in_global_section;
|
||
}
|
||
|
||
/* INDEX MM:SS:FF */
|
||
} else if (0 == strcmp ("INDEX", keyword)) {
|
||
if (0 <= i) {
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
if (NULL != cd) {
|
||
#if 0
|
||
if (1 == cd->tocent[i].nindex) {
|
||
cd->tocent[i].indexes[1] = cd->tocent[i].indexes[0];
|
||
cd->tocent[i].nindex++;
|
||
}
|
||
cd->tocent[i].indexes[cd->tocent[i].nindex++] =
|
||
msf_lba_from_mmssff (field) + cd->tocent[i].indexes[0];
|
||
#else
|
||
;
|
||
|
||
#endif
|
||
}
|
||
} else {
|
||
goto format_error;
|
||
}
|
||
if (NULL != (field = strtok (NULL, " \t\n\r"))) {
|
||
goto format_error;
|
||
}
|
||
} else {
|
||
goto not_in_global_section;
|
||
}
|
||
|
||
/* CD_TEXT { ... } */
|
||
/* todo: opening { must be on same line as CD_TEXT */
|
||
} else if (0 == strcmp ("CD_TEXT", keyword)) {
|
||
} else if (0 == strcmp ("LANGUAGE_MAP", keyword)) {
|
||
} else if (0 == strcmp ("LANGUAGE", keyword)) {
|
||
} else if (0 == strcmp ("}", keyword)) {
|
||
} else if (0 == cdtext_is_keyword (keyword)) {
|
||
if (-1 == i) {
|
||
if (NULL != cd) {
|
||
#if 0
|
||
if (NULL == cd->cdtext)
|
||
cd->cdtext = cdtext_init ();
|
||
cdtext_set (keyword, strtok (NULL, "\"\t\n\r"), cd->cdtext);
|
||
#else
|
||
;
|
||
|
||
#endif
|
||
}
|
||
} else {
|
||
if (NULL != cd) {
|
||
#if 0
|
||
if (NULL == cd->tocent[i].cdtext)
|
||
cd->tocent[i].cdtext = cdtext_init ();
|
||
cdtext_set (keyword, strtok (NULL, "\"\t\n\r"),
|
||
cd->tocent[i].cdtext);
|
||
#else
|
||
;
|
||
|
||
#endif
|
||
}
|
||
}
|
||
|
||
/* unrecognized line */
|
||
} else {
|
||
cdio_log(log_level, "%s line %d: warning: unrecognized keyword: %s",
|
||
toc_name, line_num, keyword);
|
||
goto err_exit;
|
||
}
|
||
}
|
||
}
|
||
|
||
if (NULL != cd) cd->i_tracks = i+1;
|
||
return true;
|
||
|
||
unimplimented_error:
|
||
UNIMPLIMENTED_MSG;
|
||
goto err_exit;
|
||
|
||
format_error:
|
||
cdio_log(log_level, "%s line %d after keyword %s",
|
||
toc_name, line_num, keyword);
|
||
goto err_exit;
|
||
|
||
not_in_global_section:
|
||
cdio_log(log_level, "%s line %d: keyword %s only allowed in global section",
|
||
toc_name, line_num, keyword);
|
||
|
||
err_exit:
|
||
fclose (fp);
|
||
return false;
|
||
}
|
||
|
||
/*!
|
||
Reads a single audio sector from CD device into data starting
|
||
from lsn. Returns 0 if no error.
|
||
*/
|
||
static int
|
||
_read_audio_sectors_cdrdao (void *user_data, void *data, lsn_t lsn,
|
||
unsigned int nblocks)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
int ret;
|
||
|
||
/* Why the adjustment of 272, I don't know. It seems to work though */
|
||
if (lsn != 0) {
|
||
ret = cdio_stream_seek (env->tocent[0].data_source,
|
||
(lsn * CDIO_CD_FRAMESIZE_RAW) - 272, SEEK_SET);
|
||
if (ret!=0) return ret;
|
||
|
||
ret = cdio_stream_read (env->tocent[0].data_source, data,
|
||
CDIO_CD_FRAMESIZE_RAW, nblocks);
|
||
} else {
|
||
/* We need to pad out the first 272 bytes with 0's */
|
||
BZERO(data, 272);
|
||
|
||
ret = cdio_stream_seek (env->tocent[0].data_source, 0, SEEK_SET);
|
||
|
||
if (ret!=0) return ret;
|
||
|
||
ret = cdio_stream_read (env->tocent[0].data_source, (uint8_t *) data+272,
|
||
CDIO_CD_FRAMESIZE_RAW - 272, nblocks);
|
||
}
|
||
|
||
/* ret is number of bytes if okay, but we need to return 0 okay. */
|
||
return ret == 0;
|
||
}
|
||
|
||
/*!
|
||
Reads a single mode2 sector from cd device into data starting
|
||
from lsn. Returns 0 if no error.
|
||
*/
|
||
static int
|
||
_read_mode1_sector_cdrdao (void *user_data, void *data, lsn_t lsn,
|
||
bool b_form2)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
int ret;
|
||
char buf[CDIO_CD_FRAMESIZE_RAW] = { 0, };
|
||
int blocksize = env->sector_2336
|
||
? M2RAW_SECTOR_SIZE : CDIO_CD_FRAMESIZE_RAW;
|
||
|
||
ret = cdio_stream_seek (env->tocent[0].data_source, lsn * blocksize,
|
||
SEEK_SET);
|
||
if (ret!=0) return ret;
|
||
|
||
/* FIXME: Not completely sure the below is correct. */
|
||
ret = cdio_stream_read (env->tocent[0].data_source,
|
||
env->sector_2336
|
||
? (buf + CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE)
|
||
: buf,
|
||
blocksize, 1);
|
||
if (ret==0) return ret;
|
||
|
||
memcpy (data, buf + CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE,
|
||
b_form2 ? M2RAW_SECTOR_SIZE: CDIO_CD_FRAMESIZE);
|
||
|
||
return 0;
|
||
}
|
||
|
||
/*!
|
||
Reads nblocks of mode1 sectors from cd device into data starting
|
||
from lsn.
|
||
Returns 0 if no error.
|
||
*/
|
||
static int
|
||
_read_mode1_sectors_cdrdao (void *user_data, void *data, lsn_t lsn,
|
||
bool b_form2, unsigned int nblocks)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
int i;
|
||
int retval;
|
||
unsigned int blocksize = b_form2 ? M2RAW_SECTOR_SIZE : CDIO_CD_FRAMESIZE;
|
||
|
||
for (i = 0; i < nblocks; i++) {
|
||
if ( (retval = _read_mode1_sector_cdrdao (env,
|
||
((char *)data) + (blocksize * i),
|
||
lsn + i, b_form2)) )
|
||
return retval;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
/*!
|
||
Reads a single mode1 sector from cd device into data starting
|
||
from lsn. Returns 0 if no error.
|
||
*/
|
||
static int
|
||
_read_mode2_sector_cdrdao (void *user_data, void *data, lsn_t lsn,
|
||
bool b_form2)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
int ret;
|
||
char buf[CDIO_CD_FRAMESIZE_RAW] = { 0, };
|
||
|
||
/* NOTE: The logic below seems a bit wrong and convoluted
|
||
to me, but passes the regression tests. (Perhaps it is why we get
|
||
valgrind errors in vcdxrip). Leave it the way it was for now.
|
||
Review this sector 2336 stuff later.
|
||
*/
|
||
|
||
int blocksize = env->sector_2336
|
||
? M2RAW_SECTOR_SIZE : CDIO_CD_FRAMESIZE_RAW;
|
||
|
||
ret = cdio_stream_seek (env->tocent[0].data_source, lsn * blocksize,
|
||
SEEK_SET);
|
||
if (ret!=0) return ret;
|
||
|
||
ret = cdio_stream_read (env->tocent[0].data_source,
|
||
env->sector_2336
|
||
? (buf + CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE)
|
||
: buf,
|
||
blocksize, 1);
|
||
if (ret==0) return ret;
|
||
|
||
|
||
/* See NOTE above. */
|
||
if (b_form2)
|
||
memcpy (data, buf + CDIO_CD_SYNC_SIZE + CDIO_CD_HEADER_SIZE,
|
||
M2RAW_SECTOR_SIZE);
|
||
else
|
||
memcpy (data, buf + CDIO_CD_XA_SYNC_HEADER, CDIO_CD_FRAMESIZE);
|
||
|
||
return 0;
|
||
}
|
||
|
||
/*!
|
||
Reads nblocks of mode2 sectors from cd device into data starting
|
||
from lsn.
|
||
Returns 0 if no error.
|
||
*/
|
||
static int
|
||
_read_mode2_sectors_cdrdao (void *user_data, void *data, lsn_t lsn,
|
||
bool b_form2, unsigned int nblocks)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
int i;
|
||
int retval;
|
||
unsigned int blocksize = b_form2 ? M2RAW_SECTOR_SIZE : CDIO_CD_FRAMESIZE;
|
||
|
||
for (i = 0; i < nblocks; i++) {
|
||
if ( (retval = _read_mode2_sector_cdrdao (env,
|
||
((char *)data) + (blocksize * i),
|
||
lsn + i, b_form2)) )
|
||
return retval;
|
||
}
|
||
return 0;
|
||
}
|
||
|
||
#define free_if_notnull(obj) \
|
||
if (NULL != obj) { free(obj); obj=NULL; };
|
||
|
||
static void
|
||
_free_cdrdao (void *obj)
|
||
{
|
||
_img_private_t *env = obj;
|
||
int i;
|
||
|
||
if (NULL == env) return;
|
||
free_if_notnull(env->mcn);
|
||
for (i=0; i<env->i_tracks; i++) {
|
||
if (env->tocent[i].data_source)
|
||
cdio_stdio_destroy (env->tocent[i].data_source);
|
||
free_if_notnull(env->tocent[i].isrc);
|
||
free_if_notnull(env->tocent[i].filename);
|
||
}
|
||
free_if_notnull(env->toc_name);
|
||
cdio_generic_stdio_free(env);
|
||
free(env);
|
||
}
|
||
|
||
/*!
|
||
Eject media -- there's nothing to do here except free resources.
|
||
We always return 2.
|
||
*/
|
||
static int
|
||
_eject_media_cdrdao(void *obj)
|
||
{
|
||
_free_cdrdao (obj);
|
||
return 2;
|
||
}
|
||
|
||
/*!
|
||
Set the arg "key" with "value" in the source device.
|
||
Currently "source" to set the source device in I/O operations
|
||
is the only valid key.
|
||
|
||
0 is returned if no error was found, and nonzero if there as an error.
|
||
*/
|
||
static int
|
||
_set_arg_cdrdao (void *user_data, const char key[], const char value[])
|
||
{
|
||
_img_private_t *env = user_data;
|
||
|
||
if (!strcmp (key, "sector"))
|
||
{
|
||
if (!strcmp (value, "2336"))
|
||
env->sector_2336 = true;
|
||
else if (!strcmp (value, "2352"))
|
||
env->sector_2336 = false;
|
||
else
|
||
return -2;
|
||
}
|
||
else if (!strcmp (key, "toc"))
|
||
{
|
||
free_if_notnull (env->toc_name);
|
||
|
||
if (!value)
|
||
return -2;
|
||
|
||
env->toc_name = strdup (value);
|
||
}
|
||
else
|
||
return -1;
|
||
|
||
return 0;
|
||
}
|
||
|
||
/*!
|
||
Return the value associated with the key "arg".
|
||
*/
|
||
static const char *
|
||
_get_arg_cdrdao (void *user_data, const char key[])
|
||
{
|
||
_img_private_t *env = user_data;
|
||
|
||
if (!strcmp (key, "source")) {
|
||
return env->tocent[0].filename;
|
||
} else if (!strcmp (key, "toc")) {
|
||
return env->toc_name;
|
||
} else if (!strcmp(key, "access-mode")) {
|
||
return "image";
|
||
}
|
||
return NULL;
|
||
}
|
||
|
||
/*!
|
||
Return an array of strings giving possible TOC disk images.
|
||
*/
|
||
char **
|
||
cdio_get_devices_cdrdao (void)
|
||
{
|
||
char **drives = NULL;
|
||
unsigned int num_files=0;
|
||
#ifdef HAVE_GLOB_H
|
||
unsigned int i;
|
||
glob_t globbuf;
|
||
globbuf.gl_offs = 0;
|
||
glob("*.toc", GLOB_DOOFFS, NULL, &globbuf);
|
||
for (i=0; i<globbuf.gl_pathc; i++) {
|
||
cdio_add_device_list(&drives, globbuf.gl_pathv[i], &num_files);
|
||
}
|
||
globfree(&globbuf);
|
||
#else
|
||
cdio_add_device_list(&drives, DEFAULT_CDIO_DEVICE, &num_files);
|
||
#endif /*HAVE_GLOB_H*/
|
||
cdio_add_device_list(&drives, NULL, &num_files);
|
||
return drives;
|
||
}
|
||
|
||
/*!
|
||
Return a string containing the default CD device.
|
||
*/
|
||
char *
|
||
cdio_get_default_device_cdrdao(void)
|
||
{
|
||
char **drives = cdio_get_devices_nrg();
|
||
char *drive = (drives[0] == NULL) ? NULL : strdup(drives[0]);
|
||
cdio_free_device_list(drives);
|
||
return drive;
|
||
}
|
||
|
||
/*!
|
||
Return the the kind of drive capabilities of device.
|
||
|
||
Note: string is malloc'd so caller should free() then returned
|
||
string when done with it.
|
||
|
||
*/
|
||
static cdio_drive_cap_t
|
||
_get_drive_cap_cdrdao (const void *user_data) {
|
||
|
||
/* There may be more in the future but these we can handle now.
|
||
Also, we know we can't handle
|
||
LOCK, OPEN_TRAY, CLOSE_TRAY, SELECT_SPEED, SELECT_DISC
|
||
*/
|
||
return CDIO_DRIVE_CAP_FILE | CDIO_DRIVE_CAP_MCN | CDIO_DRIVE_CAP_CD_AUDIO ;
|
||
}
|
||
|
||
/*!
|
||
Return the number of tracks in the current medium.
|
||
CDIO_INVALID_TRACK is returned on error.
|
||
*/
|
||
static track_format_t
|
||
_get_track_format_cdrdao(void *user_data, track_t i_track)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
|
||
if (!env->gen.init) _init_cdrdao(env);
|
||
|
||
if (i_track > env->i_tracks || i_track == 0)
|
||
return TRACK_FORMAT_ERROR;
|
||
|
||
return env->tocent[i_track-env->i_first_track].track_format;
|
||
}
|
||
|
||
/*!
|
||
Return true if we have XA data (green, mode2 form1) or
|
||
XA data (green, mode2 form2). That is track begins:
|
||
sync - header - subheader
|
||
12 4 - 8
|
||
|
||
FIXME: there's gotta be a better design for this and get_track_format?
|
||
*/
|
||
static bool
|
||
_get_track_green_cdrdao(void *user_data, track_t i_track)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
|
||
if (!env->gen.init) _init_cdrdao(env);
|
||
|
||
if (i_track > env->i_tracks || i_track == 0)
|
||
return false;
|
||
|
||
return env->tocent[i_track-env->i_first_track].track_green;
|
||
}
|
||
|
||
/*!
|
||
Return the starting LSN track number
|
||
i_track in obj. Track numbers start at 1.
|
||
The "leadout" track is specified either by
|
||
using i_track LEADOUT_TRACK or the total tracks+1.
|
||
False is returned if there is no track entry.
|
||
*/
|
||
static lba_t
|
||
_get_lba_track_cdrdao(void *user_data, track_t i_track)
|
||
{
|
||
_img_private_t *env = user_data;
|
||
_init_cdrdao (env);
|
||
|
||
if (i_track == CDIO_CDROM_LEADOUT_TRACK) i_track = env->i_tracks+1;
|
||
|
||
if (i_track <= env->i_tracks+1 && i_track != 0) {
|
||
return env->tocent[i_track-1].start_lba;
|
||
} else
|
||
return CDIO_INVALID_LBA;
|
||
}
|
||
|
||
/*!
|
||
Check that a TOC file is valid. We parse the entire file.
|
||
|
||
*/
|
||
bool
|
||
cdio_is_tocfile(const char *toc_name)
|
||
{
|
||
int i;
|
||
|
||
if (toc_name == NULL) return false;
|
||
|
||
i=strlen(toc_name)-strlen("toc");
|
||
|
||
if (i>0) {
|
||
if ( (toc_name[i]=='t' && toc_name[i+1]=='o' && toc_name[i+2]=='c')
|
||
|| (toc_name[i]=='T' && toc_name[i+1]=='O' && toc_name[i+2]=='C') ) {
|
||
return parse_tocfile(NULL, toc_name);
|
||
}
|
||
}
|
||
return false;
|
||
}
|
||
|
||
/*!
|
||
Initialization routine. This is the only thing that doesn't
|
||
get called via a function pointer. In fact *we* are the
|
||
ones to set that up.
|
||
*/
|
||
CdIo *
|
||
cdio_open_am_cdrdao (const char *psz_source_name, const char *psz_access_mode)
|
||
{
|
||
if (psz_access_mode != NULL && strcmp(psz_access_mode, "image"))
|
||
cdio_warn ("there is only one access mode, 'image' for cdrdao. Arg %s ignored",
|
||
psz_access_mode);
|
||
return cdio_open_cdrdao(psz_source_name);
|
||
}
|
||
|
||
/*!
|
||
Initialization routine. This is the only thing that doesn't
|
||
get called via a function pointer. In fact *we* are the
|
||
ones to set that up.
|
||
*/
|
||
CdIo *
|
||
cdio_open_cdrdao (const char *toc_name)
|
||
{
|
||
CdIo *ret;
|
||
_img_private_t *_data;
|
||
|
||
cdio_funcs _funcs = {
|
||
.eject_media = _eject_media_cdrdao,
|
||
.free = _free_cdrdao,
|
||
.get_arg = _get_arg_cdrdao,
|
||
.get_devices = cdio_get_devices_cdrdao,
|
||
.get_default_device = cdio_get_default_device_cdrdao,
|
||
.get_drive_cap = _get_drive_cap_cdrdao,
|
||
.get_first_track_num= _get_first_track_num_image,
|
||
.get_mcn = _get_mcn_image,
|
||
.get_num_tracks = _get_num_tracks_image,
|
||
.get_track_format = _get_track_format_cdrdao,
|
||
.get_track_green = _get_track_green_cdrdao,
|
||
.get_track_lba = _get_lba_track_cdrdao,
|
||
.get_track_msf = _get_track_msf_image,
|
||
.lseek = _lseek_cdrdao,
|
||
.read = _read_cdrdao,
|
||
.read_audio_sectors = _read_audio_sectors_cdrdao,
|
||
.read_mode1_sector = _read_mode1_sector_cdrdao,
|
||
.read_mode1_sectors = _read_mode1_sectors_cdrdao,
|
||
.read_mode2_sector = _read_mode2_sector_cdrdao,
|
||
.read_mode2_sectors = _read_mode2_sectors_cdrdao,
|
||
.set_arg = _set_arg_cdrdao,
|
||
.stat_size = _stat_size_cdrdao
|
||
};
|
||
|
||
if (NULL == toc_name) return NULL;
|
||
|
||
_data = _cdio_malloc (sizeof (_img_private_t));
|
||
(_data)->gen.init = false;
|
||
(_data)->sector_2336 = false;
|
||
(_data)->toc_name = NULL;
|
||
(_data)->gen.data_source = NULL;
|
||
(_data)->gen.source_name = NULL;
|
||
|
||
ret = cdio_new (_data, &_funcs);
|
||
|
||
if (ret == NULL) return NULL;
|
||
|
||
if (!cdio_is_tocfile(toc_name)) {
|
||
cdio_debug ("source name %s is not recognized as a TOC file", toc_name);
|
||
return NULL;
|
||
}
|
||
|
||
_set_arg_cdrdao (_data, "toc", toc_name);
|
||
|
||
if (_init_cdrdao(_data)) {
|
||
return ret;
|
||
} else {
|
||
_free_cdrdao(_data);
|
||
free(ret);
|
||
return NULL;
|
||
}
|
||
}
|
||
|
||
bool
|
||
cdio_have_cdrdao (void)
|
||
{
|
||
return true;
|
||
}
|