/usr/share/doc/libdiscid-doc/examples/discid.c is in libdiscid-doc 0.6.1-3.
This file is owned by root:root, with mode 0o644.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | /* --------------------------------------------------------------------------
MusicBrainz -- The Internet music metadatabase
Copyright (C) 2013 Johannes Dewender, Laurent Monin
Copyright (C) 2006 Matthias Friedrich
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
--------------------------------------------------------------------------- */
#ifdef _MSC_VER
#define snprintf _snprintf
#define _CRT_SECURE_NO_WARNINGS
#endif
#include <stdio.h>
#include <discid/discid.h>
#ifndef DISCID_HAVE_SPARSE_READ
#define discid_read_sparse(disc, dev, i) discid_read(disc, dev)
#endif
#define SECTORS_PER_SECOND 75
#define ROUND_SECONDS 0
/* Convert a number of sectors to a human-readable time in hours,minutes,seconds
* If round is true, seconds will be rounded to nearest,
* else 1/100 seconds time precision is used.
* If duration is over one hour, hours will be added in front of the string
* Examples:
* 33284 sectors with round=0 -> ( 7:23.79)
* 33284 sectors with round=1 -> ( 7:24)
* 356163 sectors with round=1 -> ( 1:19:09)
* 356163 sectors with round=0 -> ( 1:19:08.84)
*
* Result is written to buf
*/
void sectors_to_time(int sectors, int round, char *buf, size_t bufsize) {
float duration_in_secs = (float) sectors / SECTORS_PER_SECOND;
int hours = (int) duration_in_secs / 3600;
int minutes = (int) (duration_in_secs - hours * 3600) / 60;
float seconds = duration_in_secs - (hours * 3600 + minutes * 60);
if (round) {
int seconds_rounded = (int) (seconds + 0.5);
if (hours > 0) {
snprintf(buf, bufsize, "%d:%02d:%02d",
hours, minutes, seconds_rounded);
} else {
snprintf(buf, bufsize, " %2d:%02d",
minutes, seconds_rounded);
}
} else {
if (hours > 0) {
snprintf(buf, bufsize, "%d:%02d:%05.2f",
hours, minutes, seconds);
} else {
snprintf(buf, bufsize, " %2d:%05.2f",
minutes, seconds);
}
}
}
int main(int argc, char *argv[]) {
int i, first_track, last_track;
char *device = NULL;
char time_str[14];
int sectors;
DiscId *disc;
disc = discid_new();
/* If we have an argument, use it as the device name */
if (argc > 1) {
device = argv[1];
} else {
/* this will use discid_get_default_device() internally */
device = NULL;
}
if (discid_read_sparse(disc, device, 0) == 0) {
fprintf(stderr, "Error: %s\n", discid_get_error_msg(disc));
discid_free(disc);
return 1;
}
printf("DiscID : %s\n", discid_get_id(disc));
printf("FreeDB DiscID : %s\n", discid_get_freedb_id(disc));
first_track = discid_get_first_track_num(disc);
last_track = discid_get_last_track_num(disc);
printf("First track : %d\n", first_track);
printf("Last track : %d\n", last_track);
sectors = discid_get_sectors(disc);
sectors_to_time(sectors, ROUND_SECONDS, time_str, sizeof time_str);
printf("Length : %d sectors (%s)\n", sectors, time_str);
for ( i = first_track; i <= last_track; i++ ) {
sectors = discid_get_track_length(disc, i);
sectors_to_time(sectors, ROUND_SECONDS,
time_str, sizeof time_str);
printf("Track %-2d : %8d %8d (%s)\n",
i, discid_get_track_offset(disc, i),
sectors, time_str);
}
printf("Submit via : %s\n", discid_get_submission_url(disc));
discid_free(disc);
return 0;
}
/* EOF */
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