1 /** 2 * \file tracks.c 3 * Example program to list the tracks on a device. 4 * 5 * Copyright (C) 2005-2012 Linus Walleij <triad (at) df.lth.se> 6 * Copyright (C) 2007 Ted Bullock <tbullock (at) canada.com> 7 * 8 * This library is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2 of the License, or (at your option) any later version. 12 * 13 * This library is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with this library; if not, write to the 20 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 21 * Boston, MA 02111-1307, USA. 22 */ 23 #include "common.h" 24 #include <stdlib.h> 25 26 static void dump_trackinfo(LIBMTP_track_t *track) 27 { 28 printf("Track ID: %u\n", track->item_id); 29 if (track->title != NULL) 30 printf(" Title: %s\n", track->title); 31 if (track->artist != NULL) 32 printf(" Artist: %s\n", track->artist); 33 if (track->genre != NULL) 34 printf(" Genre: %s\n", track->genre); 35 if (track->composer != NULL) 36 printf(" Composer: %s\n", track->composer); 37 if (track->album != NULL) 38 printf(" Album: %s\n", track->album); 39 if (track->date != NULL) 40 printf(" Date: %s\n", track->date); 41 if (track->filename != NULL) 42 printf(" Origfilename: %s\n", track->filename); 43 printf(" Track number: %d\n", track->tracknumber); 44 printf(" Duration: %d milliseconds\n", track->duration); 45 #ifdef __WIN32__ 46 printf(" File size %I64u bytes\n", track->filesize); 47 #else 48 printf(" File size %llu bytes\n", (long long unsigned int) track->filesize); 49 #endif 50 printf(" Filetype: %s\n", LIBMTP_Get_Filetype_Description(track->filetype)); 51 if (track->samplerate != 0) { 52 printf(" Sample rate: %u Hz\n", track->samplerate); 53 } 54 if (track->nochannels != 0) { 55 printf(" Number of channels: %u\n", track->nochannels); 56 } 57 if (track->wavecodec != 0) { 58 printf(" WAVE fourCC code: 0x%08X\n", track->wavecodec); 59 } 60 if (track->bitrate != 0) { 61 printf(" Bitrate: %u bits/s\n", track->bitrate); 62 } 63 if (track->bitratetype != 0) { 64 if (track->bitratetype == 1) { 65 printf(" Bitrate type: Constant\n"); 66 } else if (track->bitratetype == 2) { 67 printf(" Bitrate type: Variable (VBR)\n"); 68 } else if (track->bitratetype == 3) { 69 printf(" Bitrate type: Free\n"); 70 } else { 71 printf(" Bitrate type: Unknown/Erroneous value\n"); 72 } 73 } 74 if (track->rating != 0) { 75 printf(" User rating: %u (out of 100)\n", track->rating); 76 } 77 if (track->usecount != 0) { 78 printf(" Use count: %u times\n", track->usecount); 79 } 80 } 81 82 static void 83 dump_tracks(LIBMTP_mtpdevice_t *device, uint32_t storageid, int leaf) 84 { 85 LIBMTP_file_t *files; 86 87 /* Get track listing. */ 88 files = LIBMTP_Get_Files_And_Folders(device, 89 storageid, 90 leaf); 91 if (files == NULL) { 92 LIBMTP_Dump_Errorstack(device); 93 LIBMTP_Clear_Errorstack(device); 94 } else { 95 LIBMTP_file_t *file, *tmp; 96 97 file = files; 98 while (file != NULL) { 99 /* Please don't print these */ 100 if (file->filetype == LIBMTP_FILETYPE_FOLDER) { 101 dump_tracks(device, storageid, file->item_id); 102 } else if (LIBMTP_FILETYPE_IS_TRACK(file->filetype)) { 103 LIBMTP_track_t *track; 104 105 track = LIBMTP_Get_Trackmetadata(device, file->item_id); 106 dump_trackinfo(track); 107 LIBMTP_destroy_track_t(track); 108 } 109 tmp = file; 110 file = file->next; 111 LIBMTP_destroy_file_t(tmp); 112 } 113 } 114 } 115 116 int main (int argc, char **argv) 117 { 118 LIBMTP_raw_device_t *rawdevices; 119 int numrawdevices; 120 LIBMTP_error_number_t err; 121 int i; 122 123 LIBMTP_Init(); 124 fprintf(stdout, "Attempting to connect device(s)\n"); 125 126 err = LIBMTP_Detect_Raw_Devices(&rawdevices, &numrawdevices); 127 switch(err) 128 { 129 case LIBMTP_ERROR_NO_DEVICE_ATTACHED: 130 fprintf(stdout, "mtp-tracks: No Devices have been found\n"); 131 return 0; 132 case LIBMTP_ERROR_CONNECTING: 133 fprintf(stderr, "mtp-tracks: There has been an error connecting. Exit\n"); 134 return 1; 135 case LIBMTP_ERROR_MEMORY_ALLOCATION: 136 fprintf(stderr, "mtp-tracks: Memory Allocation Error. Exit\n"); 137 return 1; 138 139 /* Unknown general errors - This should never execute */ 140 case LIBMTP_ERROR_GENERAL: 141 default: 142 fprintf(stderr, "mtp-tracks: Unknown error, please report " 143 "this to the libmtp developers\n"); 144 return 1; 145 146 /* Successfully connected at least one device, so continue */ 147 case LIBMTP_ERROR_NONE: 148 fprintf(stdout, "mtp-tracks: Successfully connected\n"); 149 fflush(stdout); 150 break; 151 } 152 153 /* Iterate through connected MTP devices */ 154 for (i = 0; i < numrawdevices; i++) { 155 LIBMTP_mtpdevice_t *device; 156 LIBMTP_devicestorage_t *storage; 157 char *friendlyname; 158 159 device = LIBMTP_Open_Raw_Device_Uncached(&rawdevices[i]); 160 if (device == NULL) { 161 fprintf(stderr, "Unable to open raw device %d\n", i); 162 continue; 163 } 164 165 /* Echo the friendly name so we know which device we are working with */ 166 friendlyname = LIBMTP_Get_Friendlyname(device); 167 if (friendlyname == NULL) { 168 printf("Friendly name: (NULL)\n"); 169 } else { 170 printf("Friendly name: %s\n", friendlyname); 171 free(friendlyname); 172 } 173 174 LIBMTP_Dump_Errorstack(device); 175 LIBMTP_Clear_Errorstack(device); 176 177 /* Loop over storages */ 178 for (storage = device->storage; storage != 0; storage = storage->next) { 179 dump_tracks(device, storage->id, LIBMTP_FILES_AND_FOLDERS_ROOT); 180 } 181 182 LIBMTP_Release_Device(device); 183 } 184 185 printf("OK.\n"); 186 exit (0); 187 } 188 189
