*

 */

typedef struct {

  off_t size;          /**< Total size of file in bytes */

  int nr_parts;        /**< Number of file parts */

  off_t parts_size[9]; /**< Size of each part in bytes */

} dvd_stat_t;

/**

 * Stats a file on the DVD given the title number and domain.

 * The information about the file is stored in a dvd_stat_t

 * which contains information about the size of the file and

 * the number of parts in case of a multipart file and the respective

 * sizes of the parts.

 * A multipart file is for instance VTS_02_1.VOB, VTS_02_2.VOB, VTS_02_3.VOB

 * The size of VTS_02_1.VOB will be stored in stat->parts_size[0],

 * VTS_02_2.VOB in stat->parts_size[1], ...

 * The total size (sum of all parts) is stored in stat->size and

 * stat->nr_parts will hold the number of parts.

 * Only DVD_READ_TITLE_VOBS (VTS_??_[1-9].VOB) can be multipart files.

 * 

 * This function is only of use if you want to get the size of each file

 * in the filesystem. These sizes are not needed to use any other

 * functions in libdvdread. 

 *

 * @param dvd  A dvd read handle.

 * @param titlenum Which Video Title Set should be used, VIDEO_TS is 0.

 * @param domain Which domain. 

 * @param stat Pointer to where the result is stored.

 * @return If successful 0, otherwise -1.

 *

 * int DVDFileStat(dvd, titlenum, domain, stat);

 */

int DVDFileStat(dvd_reader_t *, int, dvd_read_domain_t, dvd_stat_t *);

/**

static int DVDFileStatVOBUDF(dvd_reader_t *dvd, int title, 

                             int menu, dvd_stat_t *statbuf)

{

  char filename[ MAX_UDF_FILE_NAME_LEN ];

  uint32_t size;

  off_t tot_size;

  off_t parts_size[9];

  int nr_parts = 0;

  int n;

  if( title == 0 ) {

    sprintf( filename, "/VIDEO_TS/VIDEO_TS.VOB" );

  } else {

    sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, menu ? 0 : 1 );

  }

  if(!UDFFindFile( dvd, filename, &size )) {

    return -1;

  }

  tot_size = size;

  nr_parts = 1;

  parts_size[0] = size;

  if( !menu ) {

    int cur;

    for( cur = 2; cur < 10; cur++ ) {

      sprintf( filename, "/VIDEO_TS/VTS_%02d_%d.VOB", title, cur );

      if( !UDFFindFile( dvd, filename, &size ) ) {

        break;

      }

      parts_size[nr_parts] = size;

      tot_size += size;

      nr_parts++;

    }

  }

  statbuf->size = tot_size;

  statbuf->nr_parts = nr_parts;

  for(n = 0; n < nr_parts; n++) {

    statbuf->parts_size[n] = parts_size[n];

  }

  return 0;

}

static int DVDFileStatVOBPath( dvd_reader_t *dvd, int title,

                                       int menu, dvd_stat_t *statbuf )

{

  char filename[ MAX_UDF_FILE_NAME_LEN ];

  char full_path[ PATH_MAX + 1 ];

  struct stat fileinfo;

  off_t tot_size;

  off_t parts_size[9];

  int nr_parts = 0;

  int n;

  if( title == 0 ) {

    sprintf( filename, "VIDEO_TS.VOB" );

  } else {

    sprintf( filename, "VTS_%02d_%d.VOB", title, menu ? 0 : 1 );

  }

  if( !findDVDFile( dvd, filename, full_path ) ) {

    return -1;

  }

  if( stat( full_path, &fileinfo ) < 0 ) {

    fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );

    return -1;

  }

  tot_size = fileinfo.st_size;

  nr_parts = 1;

  parts_size[0] = fileinfo.st_size;

  if( !menu ) {

    int cur;

    for( cur = 2; cur < 10; cur++ ) {

      sprintf( filename, "VTS_%02d_%d.VOB", title, cur );

      if( !findDVDFile( dvd, filename, full_path ) ) {

        break;

      }

      if( stat( full_path, &fileinfo ) < 0 ) {

        fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );

        break;

      }

      parts_size[nr_parts] = fileinfo.st_size;

      tot_size += parts_size[nr_parts];

      nr_parts++;

    }

  }

  statbuf->size = tot_size;

  statbuf->nr_parts = nr_parts;

  for(n = 0; n < nr_parts; n++) {

    statbuf->parts_size[n] = parts_size[n];

  }

  return 0;

}

int DVDFileStat(dvd_reader_t *dvd, int titlenum, 

                dvd_read_domain_t domain, dvd_stat_t *statbuf)

{

  char filename[ MAX_UDF_FILE_NAME_LEN ];

  char full_path[ PATH_MAX + 1 ];

  struct stat fileinfo;

  uint32_t size;

  /* Check arguments. */

  if( dvd == NULL || titlenum < 0 ) {

    errno = EINVAL;

    return -1;

  }

  switch( domain ) {

  case DVD_READ_INFO_FILE:

    if( titlenum == 0 ) {

      sprintf( filename, "/VIDEO_TS/VIDEO_TS.IFO" );

    } else {

      sprintf( filename, "/VIDEO_TS/VTS_%02i_0.IFO", titlenum );

    }

    break;

  case DVD_READ_INFO_BACKUP_FILE:

    if( titlenum == 0 ) {

      sprintf( filename, "/VIDEO_TS/VIDEO_TS.BUP" );

    } else {

      sprintf( filename, "/VIDEO_TS/VTS_%02i_0.BUP", titlenum );

    }

    break;

  case DVD_READ_MENU_VOBS:

    if( dvd->isImageFile ) {

      return DVDFileStatVOBUDF( dvd, titlenum, 1, statbuf );

    } else {

      return DVDFileStatVOBPath( dvd, titlenum, 1, statbuf );

    }

    break;

  case DVD_READ_TITLE_VOBS:

    if( titlenum == 0 ) {

      return -1;

    }

    if( dvd->isImageFile ) {

      return DVDFileStatVOBUDF( dvd, titlenum, 0, statbuf );

    } else {

      return DVDFileStatVOBPath( dvd, titlenum, 0, statbuf );

    }

    break;

  default:

    fprintf( stderr, "libdvdread: Invalid domain for file stat.\n" );

    errno = EINVAL;

    return -1;

  }

  if( dvd->isImageFile ) {

    if( UDFFindFile( dvd, filename, &size ) ) {

      statbuf->size = size;

      statbuf->nr_parts = 1;

      statbuf->parts_size[0] = size;

      return 0;

    }

  } else {

    if( findDVDFile( dvd, filename, full_path ) )  {

      if( stat( full_path, &fileinfo ) < 0 ) {

        fprintf( stderr, "libdvdread: Can't stat() %s.\n", filename );

      } else {

        statbuf->size = fileinfo.st_size;

        statbuf->nr_parts = 1;

        statbuf->parts_size[0] = statbuf->size;

        return 0;

      }

    }

  }

  return -1;

}