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      1 /**
      2  * \file thumb.c
      3  * Example program to send and associate album art to an entity
      4  * on a device.
      5  *
      6  * Copyright (C) 2006 Robert Reardon <rreardon (at) monkshatch.vispa.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 "config.h"
     24 #include "common.h"
     25 #include "string.h"
     26 #include <fcntl.h>
     27 #include <errno.h>
     28 #include <stdlib.h>
     29 #include <unistd.h>
     30 #include <limits.h>
     31 #include <sys/types.h>
     32 #ifdef HAVE_SYS_UIO_H
     33 #include <sys/uio.h>
     34 #endif
     35 #include <sys/stat.h>
     36 
     37 static void usage(void) {
     38   printf("Usage: thumb -i <fileid/trackid> <imagefile>\n");
     39   exit(0);
     40 }
     41 
     42 int main (int argc, char **argv) {
     43   int opt;
     44   extern int optind;
     45   extern char *optarg;
     46   LIBMTP_mtpdevice_t *device = NULL;
     47   int fd;
     48   uint32_t id = 0;
     49   uint64_t filesize;
     50   uint8_t *imagedata = NULL;
     51   char *path = NULL;
     52   char *rest;
     53   struct stat statbuff;
     54   int ret;
     55 
     56   fprintf(stdout, "libmtp version: " LIBMTP_VERSION_STRING "\n\n");
     57 
     58   while ( (opt = getopt(argc, argv, "hi:")) != -1 ) {
     59     switch (opt) {
     60     case 'h':
     61       usage();
     62     case 'i':
     63       id = strtoul(optarg, &rest, 0);
     64       break;
     65     default:
     66       usage();
     67     }
     68   }
     69   argc -= optind;
     70   argv += optind;
     71 
     72   if ( argc != 1 ) {
     73     printf("You need to pass a filename.\n");
     74     usage();
     75   }
     76 
     77   path = argv[0];
     78 
     79   if ( stat(path, &statbuff) == -1 ) {
     80     fprintf(stderr, "%s: ", path);
     81     perror("stat");
     82     exit(1);
     83   }
     84   filesize = (uint64_t) statbuff.st_size;
     85   imagedata = malloc(filesize * sizeof(uint16_t));
     86 
     87 #ifdef __WIN32__
     88   if ( (fd = open(path, O_RDONLY|O_BINARY) == -1) ) {
     89 #else
     90   if ( (fd = open(path, O_RDONLY)) == -1) {
     91 #endif
     92     printf("Couldn't open image file %s (%s)\n",path,strerror(errno));
     93     return 1;
     94   }
     95   else {
     96     read(fd, imagedata, filesize);
     97     close(fd);
     98   }
     99 
    100   LIBMTP_Init();
    101   device = LIBMTP_Get_First_Device();
    102   if (device == NULL) {
    103     printf("No devices.\n");
    104     return 0;
    105   }
    106 
    107   LIBMTP_filesampledata_t *thumb = LIBMTP_new_filesampledata_t();
    108 
    109   int i;
    110   thumb->data = malloc(sizeof(uint16_t) * filesize);
    111   for (i = 0; i < filesize; i++) {
    112     thumb->data[i] = imagedata[i];
    113   }
    114 
    115   thumb->size = filesize;
    116   thumb->filetype = LIBMTP_FILETYPE_JPEG;
    117 
    118   ret = LIBMTP_Send_Representative_Sample(device,id,thumb);
    119   if (ret != 0) {
    120     printf("Couldn't send thumbnail\n");
    121     LIBMTP_Dump_Errorstack(device);
    122     LIBMTP_Clear_Errorstack(device);
    123   }
    124 
    125   free(imagedata);
    126   LIBMTP_destroy_filesampledata_t(thumb);
    127 
    128   LIBMTP_Release_Device(device);
    129   printf("OK.\n");
    130   return 0;
    131 }
    132