85 lines
2.3 KiB
C
85 lines
2.3 KiB
C
/*
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$Id: image_common.h,v 1.6 2004/07/09 02:46:42 rocky Exp $
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Copyright (C) 2004 Rocky Bernstein <rocky@panix.com>
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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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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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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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/* Common image routines. */
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/*!
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Return the media catalog number (MCN) from the CD or NULL if there
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is none or we don't have the ability to get it.
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Note: string is malloc'd so caller has to free() the returned
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string when done with it.
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*/
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static char *
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_get_mcn_image(const void *user_data)
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{
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const _img_private_t *env = user_data;
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if (NULL == env->psz_mcn) return NULL;
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return strdup(env->psz_mcn);
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}
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/*!
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Return the starting MSF (minutes/secs/frames) for the track number
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track_num in obj. Tracks numbers start at 1.
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The "leadout" track is specified either by
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using track_num LEADOUT_TRACK or the total tracks+1.
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*/
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static bool
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_get_track_msf_image(void *user_data, track_t track_num, msf_t *msf)
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{
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_img_private_t *env = user_data;
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if (NULL == msf) return false;
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if (track_num == CDIO_CDROM_LEADOUT_TRACK) track_num = env->i_tracks+1;
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if (track_num <= env->i_tracks+1 && track_num != 0) {
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*msf = env->tocent[track_num-env->i_first_track].start_msf;
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return true;
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} else
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return false;
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}
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/*!
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Return the number of of the first track.
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CDIO_INVALID_TRACK is returned on error.
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*/
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static track_t
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_get_first_track_num_image(void *user_data)
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{
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_img_private_t *env = user_data;
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return env->i_first_track;
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}
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/*!
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Return the number of tracks. We fake it an just say there's
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one big track.
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*/
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static track_t
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_get_num_tracks_image(void *user_data)
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{
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_img_private_t *env = user_data;
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return env->i_tracks;
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}
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