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/*
Copyright (C) 2005, 2006, 2008, 2009, 2010, 2011
Rocky Bernstein <rocky@gnu.org>
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 3 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, see <http://www.gnu.org/licenses/>.
*/
/* Simple program to show using libcdio's version of the CD-DA paranoia.
library. */
/* config.h has to come first else _FILE_OFFSET_BITS are redefined in
say opensolaris. */
#ifdef HAVE_CONFIG_H
# include "config.h"
# define __CDIO_CONFIG_H__ 1
#endif
#include <cdio/paranoia.h>
#include <cdio/cd_types.h>
#include <stdio.h>
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#ifdef HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_STAT_H
#include <sys/stat.h>
#endif
#include <fcntl.h>
static void
put_num(long int num, int f, int bytes)
{
unsigned int i;
unsigned char c;
for (i=0; bytes--; i++) {
c = (num >> (i<<3)) & 0xff;
if (write(f, &c, 1)==-1) {
perror("Could not write to output.");
exit(1);
}
}
}
#define writestr(fd, s) \
write(fd, s, sizeof(s)-1) /* Subtract 1 for trailing '\0'. */
/* Write a the header for a WAV file. */
static void
write_WAV_header(int fd, int32_t i_bytecount){
ssize_t bytes_ret;
/* quick and dirty */
bytes_ret = writestr(fd, "RIFF"); /* 0-3 */
put_num(i_bytecount+44-8, fd, 4); /* 4-7 */
bytes_ret = writestr(fd, "WAVEfmt "); /* 8-15 */
put_num(16, fd, 4); /* 16-19 */
put_num(1, fd, 2); /* 20-21 */
put_num(2, fd, 2); /* 22-23 */
put_num(44100, fd, 4); /* 24-27 */
put_num(44100*2*2, fd, 4); /* 28-31 */
put_num(4, fd, 2); /* 32-33 */
put_num(16, fd, 2); /* 34-35 */
bytes_ret = writestr(fd, "data"); /* 36-39 */
put_num(i_bytecount, fd, 4); /* 40-43 */
}
int
main(int argc, const char *argv[])
{
cdrom_drive_t *d = NULL; /* Place to store handle given by cd-paranoia. */
char **ppsz_cd_drives; /* List of all drives with a loaded CDDA in it. */
/* See if we can find a device with a loaded CD-DA in it. */
ppsz_cd_drives = cdio_get_devices_with_cap(NULL, CDIO_FS_AUDIO, false);
if (ppsz_cd_drives) {
/* Found such a CD-ROM with a CD-DA loaded. Use the first drive in
the list. */
d=cdda_identify(*ppsz_cd_drives, 1, NULL);
} else {
printf("Unable find or access a CD-ROM drive with an audio CD in it.\n");
exit(77);
}
/* Don't need a list of CD's with CD-DA's any more. */
cdio_free_device_list(ppsz_cd_drives);
if ( !d ) {
printf("Unable to identify audio CD disc.\n");
exit(77);
}
/* We'll set for verbose paranoia messages. */
cdda_verbose_set(d, CDDA_MESSAGE_PRINTIT, CDDA_MESSAGE_PRINTIT);
if ( 0 != cdda_open(d) ) {
printf("Unable to open disc.\n");
exit(77);
}
/* Okay now set up to read up to the first 300 frames of the first
audio track of the Audio CD. */
{
cdrom_paranoia_t *p = paranoia_init(d);
lsn_t i_first_lsn = cdda_disc_firstsector(d);
if ( -1 == i_first_lsn ) {
printf("Trouble getting starting LSN\n");
} else {
lsn_t i_cursor;
ssize_t bytes_ret;
track_t i_track = cdda_sector_gettrack(d, i_first_lsn);
lsn_t i_last_lsn = cdda_track_lastsector(d, i_track);
int fd = creat("track1s.wav", 0644);
if (-1 == fd) {
printf("Unable to create track1s.wav\n");
exit(1);
}
/* For demo purposes we'll read only 300 frames (about 4
seconds). We don't want this to take too long. On the other
hand, I suppose it should be something close to a real test.
*/
if ( i_last_lsn - i_first_lsn > 300) i_last_lsn = i_first_lsn + 299;
printf("Reading track %d from LSN %ld to LSN %ld\n", i_track,
(long int) i_first_lsn, (long int) i_last_lsn);
/* Set reading mode for full paranoia, but allow skipping sectors. */
paranoia_modeset(p, PARANOIA_MODE_FULL^PARANOIA_MODE_NEVERSKIP);
paranoia_seek(p, i_first_lsn, SEEK_SET);
write_WAV_header(fd, (i_last_lsn-i_first_lsn+1) * CDIO_CD_FRAMESIZE_RAW);
for ( i_cursor = i_first_lsn; i_cursor <= i_last_lsn; i_cursor ++) {
/* read a sector */
int16_t *p_readbuf=paranoia_read(p, NULL);
char *psz_err=cdda_errors(d);
char *psz_mes=cdda_messages(d);
if (psz_mes || psz_err)
printf("%s%s\n", psz_mes ? psz_mes: "", psz_err ? psz_err: "");
free(psz_err);
free(psz_mes);
if( !p_readbuf ) {
printf("paranoia read error. Stopping.\n");
break;
}
bytes_ret = write(fd, p_readbuf, CDIO_CD_FRAMESIZE_RAW);
}
close(fd);
}
paranoia_free(p);
}
cdda_close(d);
exit(0);
}
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