[Gtkpod-devel] Getting started with libgpod

[Árpád G. <arp...@gm...>]

Dear gtkpod developers,

I'm writing an iPhone application which tries to implement the following
functionality: as there's no official way among Apple's frameworks to add
songs/videos to the iPod library, I'm trying to implement this using
libgpod. I've already compiled libgpod for iPhone (along with libplist, but
obiviously without libusb and libimobiledevice) and now I'm trying to use
it. However, when I add a track to the library using my - at the moment,
command line - application, all previously added tracks are gone from the
library, but only 'partially': the iPod app on the device can't see them,
but Gtkpod does. When I sync my iPhone with Gtkpod, everything goes well and
I can properly add tracks to my iPhone's library using Gtkpod (one single
warning is generated during mounting my iPhone: 'Extended info will not be
used'). Thus I'm assuming that I'm doing something wrong. I've tried to
extract a working example from gtkpod's source (the latest stable release
was which I downloaded), but I got confused... I kindly ask you whether you
could provide me a very simple, very basic but tutorial-like introduction to
the use of libgpod (the API reference didn't help much). FYI, I'm using
Ubuntu 11.04 on my PC and I have an (obiviously  jailbroken) iPhone 3G with
the 4.2.1 firmware.

The code which I've written so far:

#include <libgpod/itdb.h>
#include <stdio.h>

int main () {

         Itdb_iTunesDB *db = itdb_parse ("/var/mobile/Media", NULL);
        // printf ("Db: %p\n", db);

Itdb_Track *track = itdb_track_new ();
                track->transferred = 0;
                track->year = 2011;
                track->title = "Test2";
                track->artist = "H2CO3";
                track->album = "Carbon8";
                track->genre = "Punk";
track->filetype = g_strdup ("MP3-file");

                itdb_track_add (db, track, -1);

Itdb_Playlist *mpl = itdb_playlist_new ("New iPod", 0);
              itdb_playlist_set_mpl (mpl);
              Itdb_Playlist *podcasts = itdb_playlist_new ("Podcasts", 0);
              itdb_playlist_set_podcasts (podcasts);

itdb_playlist_add (db, mpl, -1);
itdb_playlist_add (db, podcasts, -1);

                itdb_playlist_add_track (mpl, track, -1);
itdb_playlist_add_track (podcasts, track, -1);

                GError *err;

                gboolean ret = itdb_cp_track_to_ipod (track,
"/var/mobile/song.mp3", &err);
                if (!ret) {
                        printf ("Error: %s\n", err->message);
                }
                itdb_write (db, NULL);

        return 0;

}

What have I done wrong?

Thanks in advance,

Árpád Goretity