libnjb 2.2.6
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#include "common.h" #include <stdio.h> #include <string.h> static void songid_frame_dump (njb_songid_frame_t *frame, FILE *fp) { fprintf(fp, "%s: ", frame->label); if ( frame->type == NJB_TYPE_STRING ) { fprintf(fp, "%s\n", frame->data.strval); } else if (frame->type == NJB_TYPE_UINT16) { fprintf(fp, "%d\n", frame->data.u_int16_val); } else if (frame->type == NJB_TYPE_UINT32) { fprintf(fp, "%u\n", frame->data.u_int32_val); } else { fprintf(fp, "(weird data word size, cannot display!)\n"); } } static void songid_dump (njb_songid_t *song, FILE *fp) { njb_songid_frame_t *frame; NJB_Songid_Reset_Getframe(song); fprintf(fp, "ID: %u\n", song->trid); while( (frame = NJB_Songid_Getframe(song)) ) { songid_frame_dump(frame, fp); } } int main (int argc, char **argv) { njb_t njbs[NJB_MAX_DEVICES], *njb; extern char *optarg; int opt; int n, debug, rc = 1; int extended = 0; /* Whether to get extended track info */ njb_songid_t *songtag; char *lang; debug= 0; while ( (opt= getopt(argc, argv, "D:E")) != -1 ) { switch (opt) { case 'D': debug = atoi(optarg); break; case 'E': extended = 1; break; default: fprintf(stderr, "usage: tracks [ -D debuglvl ] -E\n"); return 1; } } 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); } } } 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; } if ( NJB_Capture(njb) == -1 ) { NJB_Error_Dump(njb,stderr); goto err1; } if (extended != 0) { NJB_Get_Extended_Tags(njb, 1); } n = 0; NJB_Reset_Get_Track_Tag(njb); while ( (songtag = NJB_Get_Track_Tag(njb)) ) { songid_dump(songtag, stdout); NJB_Songid_Destroy(songtag); printf("----------------------------------\n"); n ++; } /* Dump any pending errors */ if (NJB_Error_Pending(njb)) { NJB_Error_Dump(njb,stderr); } printf("In total: %u tracks.\n", n); NJB_Release(njb); rc = 0; err1: NJB_Close(njb); return rc; }