claunia/libcdio-osx
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Probably much closer to being able to handle Nero CUES format. Seems

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to have 2336 sector size; 2 second pregap seems to be included at the
beginning of the image.
This commit is contained in:
rocky
2003-04-21 23:24:46 +00:00
parent 717c19ed3b
commit 40c6ed2b1c
1 changed files with 29 additions and 12 deletions
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41
lib/_cdio_nrg.c
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@@ -1,5 +1,5 @@
/*
$Id: _cdio_nrg.c,v 1.11 2003/04/11 17:30:30 rocky Exp $
$Id: _cdio_nrg.c,v 1.12 2003/04/21 23:24:46 rocky Exp $
Copyright (C) 2001,2003 Herbert Valerio Riedel <hvr@gnu.org>
@@ -38,7 +38,7 @@
#include "util.h"
#include "_cdio_stdio.h"
static const char _rcsid[] = "$Id: _cdio_nrg.c,v 1.11 2003/04/11 17:30:30 rocky Exp $";
static const char _rcsid[] = "$Id: _cdio_nrg.c,v 1.12 2003/04/21 23:24:46 rocky Exp $";
/* structures used */
@@ -108,7 +108,7 @@ typedef struct {
track_format_t track_format;
bool track_green;
uint16_t datasize; /* How much is in the portion we return back? */
uint16_t datastart; /* Offset from begining that data starts */
long int datastart; /* Offset from begining that data starts */
uint16_t endsize; /* How much stuff at the end to skip over. This
stuff may have error correction (EDC, or ECC).*/
uint16_t blocksize; /* total block size = start + size + end */
@@ -131,7 +131,10 @@ typedef struct {
generic_img_private_t gen;
internal_position_t pos;
bool sector_2336;
/* This is a hack because I don't really understnad NERO better. */
bool is_cues;
bool sector_2336;
track_info_t tocent[100]; /* entry info for each track */
track_t total_tracks; /* number of tracks in image */
track_t first_track_num; /* track number of first track */
@@ -159,6 +162,7 @@ _register_mapping (_img_private_t *_obj, lsn_t start_lsn, uint32_t sec_count,
_cdio_list_append (_obj->mapping, _map);
_map->start_lsn = start_lsn;
_map->sec_count = sec_count;
_map->img_offset = img_offset;
_obj->size = MAX (_obj->size, (start_lsn + sec_count));
@@ -172,6 +176,11 @@ _register_mapping (_img_private_t *_obj, lsn_t start_lsn, uint32_t sec_count,
this_track->start_lba = cdio_msf_to_lba(&this_track->start_msf);
this_track->track_num = track_num+1;
this_track->blocksize = blocksize;
if (_obj->is_cues)
this_track->datastart = img_offset + 8;
else
this_track->datastart = 8;
this_track->sec_count = sec_count;
_obj->total_tracks++;
@@ -258,7 +267,11 @@ PRAGMA_END_PACKED
bool break_out = false;
switch (UINT32_FROM_BE (chunk->id)) {
case CUES_ID: { /* "CUES" */
case CUES_ID: { /* "CUES" Seems to have sector size 2336 and 150 sector
pregap seems to be included at beginning of image.
*/
unsigned entries = UINT32_FROM_BE (chunk->len);
_cuex_array_t *_entries = (void *) chunk->data;
@@ -277,7 +290,9 @@ PRAGMA_END_PACKED
int idx;
/*cdio_assert (lsn == 0?);*/
_obj->is_cues = true; /* HACK alert. */
_obj->sector_2336 = true;
_obj->total_tracks = 0;
_obj->first_track_num = 1;
for (idx = 1; idx < entries-1; idx += 2) {
@@ -290,8 +305,8 @@ PRAGMA_END_PACKED
lsn2 = UINT32_FROM_BE (_entries[idx + 1].lsn);
_register_mapping (_obj, lsn, lsn2 - lsn,
(lsn+CDIO_PREGAP_SECTORS) * CDIO_CD_FRAMESIZE_RAW,
CDIO_CD_FRAMESIZE_RAW);
(lsn+CDIO_PREGAP_SECTORS) * M2RAW_SECTOR_SIZE,
M2RAW_SECTOR_SIZE);
}
}
break;
@@ -387,8 +402,8 @@ PRAGMA_END_PACKED
cdio_assert (_start * M2RAW_SECTOR_SIZE == _start2);
_start += idx * CDIO_PREGAP_SECTORS;
_register_mapping (_obj, _start, _len, _start2, M2RAW_SECTOR_SIZE);
}
}
break;
@@ -424,7 +439,6 @@ PRAGMA_END_PACKED
cdio_assert (_start * M2RAW_SECTOR_SIZE == _start2);
_start += idx * CDIO_PREGAP_SECTORS;
_register_mapping (_obj, _start, _len, _start2, M2RAW_SECTOR_SIZE);
}
}
@@ -503,7 +517,7 @@ _cdio_lseek (void *user_data, off_t offset, int whence)
The number below was determined empirically. I'm guessing
the 1st 24 bytes of a bin file are used for something.
*/
off_t real_offset=8;
off_t real_offset=0;
unsigned int i;
unsigned int user_datasize;
@@ -542,6 +556,7 @@ _cdio_lseek (void *user_data, off_t offset, int whence)
cdio_warn ("seeking outside range of disk image");
return -1;
} else
real_offset += _obj->tocent[i].datastart;
return cdio_stream_seek(_obj->gen.data_source, real_offset, whence);
}
@@ -845,7 +860,9 @@ cdio_open_nrg (const char *source_name)
_data->total_tracks = 0;
_data->first_track_num= 1;
_data->sector_2336 = false;
_data->sector_2336 = false; /* FIXME: remove sector_2336 */
_data->is_cues = false; /* FIXME: remove is_cues. */
_cdio_set_arg(_data, "source", (NULL == source_name)
? DEFAULT_CDIO_DEVICE: source_name);