guint32
get_nonzero_guint32(const char *string, const char *name)
{
guint32 number;
number = get_guint32(string, name);
if (number == 0) {
cmdarg_err("The specified %s is zero", name);
exit(1);
}
return number;
}
static int
write_mhii (Itdb_DB *db, void *data, iPodBuffer *buffer)
{
MhiiHeader *mhii;
unsigned int total_bytes;
int bytes_written;
int num_children;
const GList *it = NULL;
Itdb_Track *song;
Itdb_Artwork *artwork;
guint64 mactime;
Itdb_Device *device = db_get_device (db);
mhii = (MhiiHeader *)init_header (buffer, "mhii", sizeof (MhiiHeader));
if (mhii == NULL) {
return -1;
}
total_bytes = get_gint32 (mhii->header_len, buffer->byte_order);
switch( buffer->db_type) {
case DB_TYPE_ITUNES:
song = (Itdb_Track *)data;
artwork = song->artwork;
mhii->song_id = get_gint64 (song->dbid, buffer->byte_order);
break;
case DB_TYPE_PHOTO:
artwork = (Itdb_Artwork *)data;
mhii->song_id = get_gint64 (artwork->id + 2, buffer->byte_order);
break;
default:
g_return_val_if_reached (-1);
}
mhii->image_id = get_guint32 (artwork->id, buffer->byte_order);
mhii->unknown4 = get_gint32 (artwork->unk028, buffer->byte_order);
mhii->rating = get_gint32 (artwork->rating, buffer->byte_order);
mhii->unknown6 = get_gint32 (artwork->unk036, buffer->byte_order);
mactime = device_time_time_t_to_mac (device, artwork->creation_date);
mhii->orig_date = get_guint32 (mactime, buffer->byte_order);
mactime = device_time_time_t_to_mac (device, artwork->digitized_date);
mhii->digitized_date = get_guint32 (mactime, buffer->byte_order);
mhii->orig_img_size = get_gint32 (artwork->artwork_size, buffer->byte_order);
num_children = 0;
/* Before trying to write the artwork or photo database, the ithmb
* files have been written, which will have converted all thumbnails
* attached to the tracks to ITDB_THUMB_TYPE_IPOD thumbnails.
*/
g_assert (artwork->thumbnail->data_type == ITDB_THUMB_TYPE_IPOD);
for (it=itdb_thumb_ipod_get_thumbs ((Itdb_Thumb_Ipod *)artwork->thumbnail);
it!=NULL;
it=it->next)
{
iPodBuffer *sub_buffer;
Itdb_Thumb_Ipod_Item *thumb;
thumb = (Itdb_Thumb_Ipod_Item *)it->data;
if (thumb->format == NULL) {
/* skip this thumb */
continue;
}
mhii->num_children = get_gint32 (num_children,
buffer->byte_order);
mhii->total_len = get_gint32 (total_bytes, buffer->byte_order);
sub_buffer = ipod_buffer_get_sub_buffer (buffer, total_bytes);
if (sub_buffer == NULL) {
return -1;
}
bytes_written = write_mhod (db, thumb, sub_buffer);
ipod_buffer_destroy (sub_buffer);
if (bytes_written == -1) {
return -1;
}
total_bytes += bytes_written;
mhii = ipod_buffer_get_pointer (buffer);
num_children++;
}
mhii->num_children = get_gint32 (num_children, buffer->byte_order);
mhii->total_len = get_gint32 (total_bytes, buffer->byte_order);
dump_mhii (mhii);
return total_bytes;
}
