commit 3cdf2f9d51c61b1f560cb4ba320eecd768158aa6
Author: Christophe Fergeau <[email protected]>
Date: Fri Apr 9 16:51:15 2010 +0200
Autodetect Shuffle database format
Add code to detect the Shuffle generation using SysInfoExtended
(or SysInfo) and use this to device whether to write a new-style
or old-style iTunesSD.
src/itdb_itunesdb.c | 171 ++++++++++++++++++++++++++++----------------------
1 files changed, 96 insertions(+), 75 deletions(-)
---
diff --git a/src/itdb_itunesdb.c b/src/itdb_itunesdb.c
index 7354997..7a8a2e8 100644
--- a/src/itdb_itunesdb.c
+++ b/src/itdb_itunesdb.c
@@ -318,6 +318,8 @@ static guint32 raw_get32bint (FContents *cts, glong seek);
static guint64 raw_get64bint (FContents *cts, glong seek);
static float raw_get32bfloat (FContents *cts, glong seek);
+static gboolean is_shuffle_2g (Itdb_Device *device);
+
static const ByteReader LITTLE_ENDIAN_READER =
{
raw_get16lint, raw_get24lint, raw_get32lint, raw_get64lint, raw_get32lfloat
@@ -6385,6 +6387,25 @@ static gboolean write_bdhs (FExport *fexp)
return TRUE;
}
+static gboolean is_shuffle_2g (Itdb_Device *device)
+{
+ const Itdb_IpodInfo *shuffle_info;
+ Itdb_IpodGeneration generation;
+
+ if (!itdb_device_is_shuffle (device)) {
+ return FALSE;
+ }
+
+ shuffle_info = itdb_device_get_ipod_info (device);
+
+ if (!shuffle_info) {
+ return FALSE;
+ }
+ generation = shuffle_info->ipod_generation;
+ return ((generation == ITDB_IPOD_GENERATION_SHUFFLE_1)
+ || (generation == ITDB_IPOD_GENERATION_SHUFFLE_2));
+}
+
/**
* itdb_shuffle_write_file:
* @itdb: the #Itdb_iTunesDB to write to disk
@@ -6420,89 +6441,89 @@ gboolean itdb_shuffle_write_file (Itdb_iTunesDB *itdb,
cts->reversed = (itdb->device->byte_order == G_BIG_ENDIAN);
prepare_itdb_for_write (fexp);
-
- if(0)/*Old Shuffle Format*/
- {
- put24bint (cts, itdb_tracks_number (itdb));
- put24bint (cts, 0x010600);
- put24bint (cts, 0x12); /* size of header */
- put24bint (cts, 0x0); /* padding? */
- put24bint (cts, 0x0);
- put24bint (cts, 0x0);
- for (gl=itdb->tracks; gl; gl=gl->next)
- {
- Itdb_Track *tr = gl->data;
- gchar *path;
- gunichar2 *path_utf16;
- glong pathlen;
-
- g_return_val_if_fail (tr, FALSE);
-
- put24bint (cts, 0x00022e);
- put24bint (cts, 0x5aa501);
- /* starttime is in 256 ms incr. for shuffle */
- put24bint (cts, tr->starttime / 256);
- put24bint (cts, 0);
- put24bint (cts, 0);
- put24bint (cts, tr->stoptime / 256);
- put24bint (cts, 0);
- put24bint (cts, 0);
- /* track->volume ranges from -255 to +255 */
- /* we want 0 - 200 */
- put24bint (cts, ((tr->volume + 255) * 201) / 511);
-
- /* The next one should be 0x01 for MP3,
- ** 0x02 for AAC, and 0x04 for WAV, but I can't find
- ** a suitable indicator within the track structure? */
- /* JCS: let's do heuristic on tr->filetype which would contain
- "MPEG audio file", "AAC audio file", "Protected AAC audio
- file", "AAC audio book file", "WAV audio file" (or similar
- if not written by gtkpod) */
-
- put24bint (cts, convert_filetype (tr->filetype));
-
- put24bint (cts, 0x200);
-
- path = g_strdup (tr->ipod_path);
- /* shuffle uses forward slash separator, not colon */
- g_strdelimit (path, ":", '/');
- path_utf16 = g_utf8_to_utf16 (path, -1, NULL, &pathlen, NULL);
- if (pathlen > 261) pathlen = 261;
- fixup_little_utf16 (path_utf16);
- put_data (cts, (gchar *)path_utf16, sizeof (gunichar2)*pathlen);
- /* pad to 522 bytes */
- put16_n0 (cts, 261-pathlen);
- g_free(path);
- g_free(path_utf16);
-
- /* XXX FIXME: should depend on something, not hardcoded */
- put8int (cts, 0x1); /* song used in shuffle mode */
- put8int (cts, 0); /* song will not be bookmarkable */
- put8int (cts, 0);
- }
- } else {
- write_bdhs(fexp);
+ if (is_shuffle_2g (itdb->device)) {
+ /* Older iTunesSD format */
+ put24bint (cts, itdb_tracks_number (itdb));
+ put24bint (cts, 0x010600);
+ put24bint (cts, 0x12); /* size of header */
+ put24bint (cts, 0x0); /* padding? */
+ put24bint (cts, 0x0);
+ put24bint (cts, 0x0);
+ for (gl=itdb->tracks; gl; gl=gl->next)
+ {
+ Itdb_Track *tr = gl->data;
+ gchar *path;
+ gunichar2 *path_utf16;
+ glong pathlen;
+
+ g_return_val_if_fail (tr, FALSE);
+
+ put24bint (cts, 0x00022e);
+ put24bint (cts, 0x5aa501);
+ /* starttime is in 256 ms incr. for shuffle */
+ put24bint (cts, tr->starttime / 256);
+ put24bint (cts, 0);
+ put24bint (cts, 0);
+ put24bint (cts, tr->stoptime / 256);
+ put24bint (cts, 0);
+ put24bint (cts, 0);
+ /* track->volume ranges from -255 to +255 */
+ /* we want 0 - 200 */
+ put24bint (cts, ((tr->volume + 255) * 201) / 511);
+
+ /* The next one should be 0x01 for MP3,
+ ** 0x02 for AAC, and 0x04 for WAV, but I can't find
+ ** a suitable indicator within the track structure? */
+ /* JCS: let's do heuristic on tr->filetype which would contain
+ "MPEG audio file", "AAC audio file", "Protected AAC audio
+ file", "AAC audio book file", "WAV audio file" (or similar
+ if not written by gtkpod) */
+
+ put24bint (cts, convert_filetype (tr->filetype));
+
+ put24bint (cts, 0x200);
+
+ path = g_strdup (tr->ipod_path);
+ /* shuffle uses forward slash separator, not colon */
+ g_strdelimit (path, ":", '/');
+ path_utf16 = g_utf8_to_utf16 (path, -1, NULL, &pathlen, NULL);
+ if (pathlen > 261) pathlen = 261;
+ fixup_little_utf16 (path_utf16);
+ put_data (cts, (gchar *)path_utf16, sizeof (gunichar2)*pathlen);
+ /* pad to 522 bytes */
+ put16_n0 (cts, 261-pathlen);
+ g_free(path);
+ g_free(path_utf16);
+
+ /* XXX FIXME: should depend on something, not hardcoded */
+ put8int (cts, 0x1); /* song used in shuffle mode */
+ put8int (cts, 0); /* song will not be bookmarkable */
+ put8int (cts, 0);
+ }
+ }else {
+ /* Newer iTunesSD format */
+ /* Add the main Header */
+ write_bdhs(fexp);
/* Add the Tracks Header */
if (!write_hths(fexp)){
- g_set_error(&fexp->error,
- ITDB_FILE_ERROR,
- ITDB_FILE_ERROR_CORRUPT,
- _("Error writing list of tracks (hths)"));
- goto serr;
+ g_set_error(&fexp->error,
+ ITDB_FILE_ERROR,
+ ITDB_FILE_ERROR_CORRUPT,
+ _("Error writing list of tracks (hths)"));
+ goto serr;
}
/* Add the Playlist Header */
if(!fexp->error && !write_hphs(fexp)){
- g_set_error(&fexp->error,
- ITDB_FILE_ERROR,
- ITDB_FILE_ERROR_CORRUPT,
- _("Error writing playlists (hphs)"));
- goto serr;
- }
-
+ g_set_error(&fexp->error,
+ ITDB_FILE_ERROR,
+ ITDB_FILE_ERROR_CORRUPT,
+ _("Error writing playlists (hphs)"));
+ goto serr;
+ }
}
if (!fexp->error)
{
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