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1 /**
2  * \file albums.c
3  * Example program that lists the albums on the device.
4  *
5  * Copyright (C) 2006 Chris A. Debenham <chris@adebenham.com>
6  * Copyright (C) 2007 Ted Bullock <tbullock@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 
dump_albuminfo(LIBMTP_album_t * album)26 static void dump_albuminfo(LIBMTP_album_t *album)
27 {
28   printf("Album ID: %d\n",album->album_id);
29   printf("    Parent ID:   %d\n",album->parent_id);
30   printf("    Name:   %s\n",album->name);
31   printf("    Artist: %s\n", album->artist);
32   printf("    Composer:  %s\n", album->composer);
33   printf("    Genre:  %s\n", album->genre);
34   printf("    Tracks: %d\n\n",album->no_tracks);
35 }
36 
37 static void
dump_albums(LIBMTP_mtpdevice_t * device,uint32_t storageid,int leaf)38 dump_albums(LIBMTP_mtpdevice_t *device, uint32_t storageid, int leaf)
39 {
40   LIBMTP_file_t *files;
41 
42   /* Get file listing. */
43   files = LIBMTP_Get_Files_And_Folders(device,
44 				       storageid,
45 				       leaf);
46   if (files == NULL) {
47     LIBMTP_Dump_Errorstack(device);
48     LIBMTP_Clear_Errorstack(device);
49   } else {
50     LIBMTP_file_t *file, *tmp;
51     file = files;
52     while (file != NULL) {
53       /* Please don't print these */
54       if (file->filetype == LIBMTP_FILETYPE_FOLDER) {
55 	dump_albums(device, storageid, file->item_id);
56       } else if (file->filetype == LIBMTP_FILETYPE_ALBUM) {
57 	LIBMTP_album_t *album;
58 
59 	album = LIBMTP_Get_Album(device, file->item_id);
60 	dump_albuminfo(album);
61 	LIBMTP_destroy_album_t(album);
62       }
63       tmp = file;
64       file = file->next;
65       LIBMTP_destroy_file_t(tmp);
66     }
67   }
68 }
69 
main(int argc,char * argv[])70 int main (int argc, char *argv[]) {
71   LIBMTP_raw_device_t *rawdevices;
72   int numrawdevices;
73   LIBMTP_error_number_t err;
74   int i;
75 
76   int opt;
77   extern int optind;
78   extern char *optarg;
79 
80   while ((opt = getopt(argc, argv, "d")) != -1 ) {
81     switch (opt) {
82     case 'd':
83       LIBMTP_Set_Debug(LIBMTP_DEBUG_PTP | LIBMTP_DEBUG_DATA);
84       break;
85     }
86   }
87 
88   argc -= optind;
89   argv += optind;
90 
91   LIBMTP_Init();
92 
93   fprintf(stdout, "libmtp version: " LIBMTP_VERSION_STRING "\n\n");
94 
95   err = LIBMTP_Detect_Raw_Devices(&rawdevices, &numrawdevices);
96   switch(err)
97   {
98   case LIBMTP_ERROR_NO_DEVICE_ATTACHED:
99     fprintf(stdout, "mtp-albums: No Devices have been found\n");
100     return 0;
101   case LIBMTP_ERROR_CONNECTING:
102     fprintf(stderr, "mtp-albums: There has been an error connecting. Exit\n");
103     return 1;
104   case LIBMTP_ERROR_MEMORY_ALLOCATION:
105     fprintf(stderr, "mtp-albums: Memory Allocation Error. Exit\n");
106     return 1;
107 
108   /* Unknown general errors - This should never execute */
109   case LIBMTP_ERROR_GENERAL:
110   default:
111     fprintf(stderr, "mtp-albums: Unknown error, please report "
112                     "this to the libmtp developers\n");
113   return 1;
114 
115   /* Successfully connected at least one device, so continue */
116   case LIBMTP_ERROR_NONE:
117     fprintf(stdout, "mtp-albums: Successfully connected\n");
118     fflush(stdout);
119     break;
120   }
121 
122   /* iterate through connected MTP devices */
123   for (i = 0; i < numrawdevices; i++) {
124     LIBMTP_mtpdevice_t *device;
125     LIBMTP_devicestorage_t *storage;
126     char *friendlyname;
127 
128     device = LIBMTP_Open_Raw_Device_Uncached(&rawdevices[i]);
129     if (device == NULL) {
130       fprintf(stderr, "Unable to open raw device %d\n", i);
131       continue;
132     }
133 
134     /* Echo the friendly name so we know which device we are working with */
135     friendlyname = LIBMTP_Get_Friendlyname(device);
136     if (friendlyname == NULL) {
137       printf("Retrieving Albums on Device with name: (NULL)\n");
138     } else {
139       printf("Retrieving Albums on Device with name: %s\n", friendlyname);
140       free(friendlyname);
141     }
142 
143     LIBMTP_Dump_Errorstack(device);
144     LIBMTP_Clear_Errorstack(device);
145 
146     /* Loop over storages */
147     for (storage = device->storage; storage != 0; storage = storage->next) {
148       dump_albums(device, storage->id, LIBMTP_FILES_AND_FOLDERS_ROOT);
149     }
150     LIBMTP_Release_Device(device);
151   }
152 
153   free(rawdevices);
154 
155   printf("OK.\n");
156   return 0;
157 }
158 
159