/*

  Copyright (C) 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/>.

*/

/* http://sourceforge.net/projects/discid/ using libcdio:

   a small program to calculate the disc-ID for audio compact

   discs. The disc-ID can be used to query info (tracks, title,

   interpret) about compact audio discs from a CDDB-Server.

*/

#ifdef HAVE_CONFIG_H

#include "config.h"

#define __CDIO_CONFIG_H__ 1

#endif

#ifdef HAVE_STDIO_H

#include <stdio.h>

#endif

#ifdef HAVE_SYS_TYPES_H

#include <sys/types.h>

#endif

#include <cdio/cdio.h>

static int cddb_sum(int n)

{

  int result = 0;

  while (n > 0)

  {

    result += n % 10;

    n /= 10;

  }

  return result;

}

int

main(int argc, const char *argv[])

{

  CdIo_t *p_cdio = cdio_open (NULL, DRIVER_UNKNOWN);

  track_t i_track;

  track_t i_tracks;

  unsigned n = 0;

  if (NULL == p_cdio) {

    printf("Couldn't find a driver.. leaving.\n");

    return 1;

  }

  i_tracks = cdio_get_num_tracks(p_cdio);

  for (i_track = 1; i_track <= i_tracks; ++i_track) {

      lba_t lba = cdio_get_track_lba(p_cdio, i_track);

      n += cddb_sum(lba / CDIO_CD_FRAMES_PER_SEC);

  }

  { 

      unsigned start_sec = 

	  cdio_get_track_lba(p_cdio, 1) /  CDIO_CD_FRAMES_PER_SEC;

      unsigned leadout_sec = 

	  cdio_get_track_lba(p_cdio, CDIO_CDROM_LEADOUT_TRACK) 

	  / CDIO_CD_FRAMES_PER_SEC;

      unsigned total = leadout_sec - start_sec;

      unsigned id = ((n % 0xff) << 24 | total << 8 | i_tracks);

      printf("%08X %d", id, i_tracks);

      for (i_track = 1; i_track <= i_tracks; ++i_track) {

	  lba_t lba = cdio_get_track_lba(p_cdio, i_track);

	  printf(" %ld", (long) lba);

      }

      printf(" %ld\n", (long) cdio_get_track_lba(p_cdio, 

						 CDIO_CDROM_LEADOUT_TRACK)

	     / CDIO_CD_FRAMES_PER_SEC);

  }

  cdio_destroy(p_cdio);

  return 0;

}