libnjb 2.2.7

tagtr.c
#include "common.h"
#include <string.h>
static char *prompt (const char *prompt, char *buffer, size_t bufsz, int required)
{
char *cp, *bp;
while (1) {
fprintf(stdout, "%s> ", prompt);
if ( fgets(buffer, bufsz, stdin) == NULL ) {
if (ferror(stdin)) {
perror("fgets");
} else {
fprintf(stderr, "EOF on stdin\n");
}
return NULL;
}
cp= strrchr(buffer, '\n');
if ( cp != NULL ) *cp= '\0';
bp= buffer;
while ( bp != cp ) {
if ( *bp != ' ' && *bp != '\t' ) return bp;
bp++;
}
if (! required) return bp;
}
}
static void usage (void)
{
fprintf(stderr, "usage: tagtr [ -D debuglvl ] <trackid>\n");
exit(1);
}
int main(int argc, char **argv)
{
njb_t njbs[NJB_MAX_DEVICES], *njb;
int n, opt, debug, lookup;
extern char *optarg;
extern int optind;
char filename[80], artist[80], title[80], genre[80], codec[80], album[80];
char num[80];
char *pfilename, *partist, *ptitle, *pgenre, *pcodec, *palbum, *pnum;
char *endptr;
u_int16_t tracknum, length, year;
u_int32_t filesize;
int trackid;
char *lang;
njb_songid_t *songid;
njb_songid_frame_t *frame;
debug = 0;
lookup = 0;
while ( (opt= getopt(argc, argv, "D:l")) != -1 ) {
switch (opt) {
case 'l':
lookup= 1;
case 'D':
debug= atoi(optarg);
break;
default:
usage();
}
}
argc-= optind;
argv+= optind;
if ( argc != 1 ) usage();
if ( debug ) NJB_Set_Debug(debug);
/*
* Check environment variables $LANG and $LC_CTYPE
* to see if we want to support UTF-8 unicode
* $LANG = "xx_XX.UTF-8" or $LC_CTYPE = "?"
* trigger unicode support.
*/
lang = getenv("LANG");
if (lang != NULL) {
if (strlen(lang) > 5) {
if (!strcmp(&lang[strlen(lang)-5], "UTF-8")) {
NJB_Set_Unicode(NJB_UC_UTF8);
}
}
}
trackid= strtoul(argv[0], &endptr, 10);
if ( endptr[0] != '\0' ) {
fprintf(stderr, "invalid id %s\n", argv[1]);
return 1;
}
if ( (pcodec= prompt("CODEC", codec, 80, 0)) == NULL ) return 1;
if ( ! strlen(pcodec) ) pcodec= NULL;
if ( (ptitle= prompt("Title", title, 80, 0)) == NULL ) return 1;
if ( ! strlen(ptitle) ) ptitle= NULL;
if ( (palbum= prompt("Album", album, 80, 0)) == NULL ) return 1;
if ( ! strlen(palbum) ) palbum= NULL;
if ( (partist= prompt("Artist", artist, 80, 0)) == NULL ) return 1;
if ( ! strlen(partist) ) partist= NULL;
if ( (pgenre= prompt("Genre", genre, 80, 0)) == NULL ) return 1;
if ( ! strlen(pgenre) ) pgenre= NULL;
if ( (pfilename= prompt("File path", filename, 80, 0)) == NULL ) return 1;
if ( ! strlen(pfilename) ) pfilename= NULL;
if ( (pnum= prompt("Track number", num, 80, 0)) == NULL ) return 1;
if ( strlen(pnum) ) {
tracknum = strtoul(pnum, 0, 10);
} else {
tracknum = 0;
}
if ( (pnum= prompt("Length", num, 80, 0)) == NULL ) return 1;
if ( strlen(pnum) ) {
length= strtoul(pnum, 0, 10);
} else {
length= 0;
}
if ( (pnum= prompt("Year", num, 80, 0)) == NULL ) return 1;
if ( strlen(pnum) ) {
year = strtoul(pnum, 0, 10);
} else {
year = 0;
}
filesize= 0;
if ( ! lookup ) {
if ( (pnum= prompt("File size", num, 80, 0)) == NULL )
return 1;
if ( strlen(pnum) ) {
filesize = strtoul(pnum, 0, 10);
} else {
filesize = 0;
}
}
if (NJB_Discover(njbs, 0, &n) == -1) {
fprintf(stderr, "could not locate any jukeboxes\n");
return 1;
}
if ( n == 0 ) {
fprintf(stderr, "no NJB devices found\n");
return 0;
}
njb= njbs;
if ( NJB_Open(njb) == -1 ) {
NJB_Error_Dump(njb,stderr);
return 1;
}
NJB_Capture(njb);
songid = NJB_Songid_New();
frame = NJB_Songid_Frame_New_Codec(pcodec);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Filesize(filesize);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Title(ptitle);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Album(palbum);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Artist(partist);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Genre(pgenre);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Year(year);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Tracknum(tracknum);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Length(length);
NJB_Songid_Addframe(songid, frame);
frame = NJB_Songid_Frame_New_Filename(pfilename);
NJB_Songid_Addframe(songid, frame);
if ( NJB_Replace_Track_Tag(njb, trackid, songid) == -1 ) {
NJB_Error_Dump(njb,stderr);
} else {
printf("NJB track ID: %u\n", trackid);
}
printf("\n");
NJB_Songid_Destroy(songid);
NJB_Release(njb);
return 0;
}