gst-libs/gst/riff/riff-ids.h: Adding acid chunk for tempo and loop information.
Original commit message from CVS:
* gst-libs/gst/riff/riff-ids.h:
Adding acid chunk for tempo and loop information.
diff --git a/gst-libs/gst/riff/riff-ids.h b/gst-libs/gst/riff/riff-ids.h
index dcd3cee..cf45f6d 100644
--- a/gst-libs/gst/riff/riff-ids.h
+++ b/gst-libs/gst/riff/riff-ids.h
@@ -52,6 +52,7 @@
#define GST_RIFF_TAG_bext GST_MAKE_FOURCC ('b','e','x','t')
#define GST_RIFF_TAG_BEXT GST_MAKE_FOURCC ('B','E','X','T')
#define GST_RIFF_TAG_fact GST_MAKE_FOURCC ('f','a','c','t')
+#define GST_RIFF_TAG_acid GST_MAKE_FOURCC ('a','c','i','d')
/* LIST types */
#define GST_RIFF_LIST_movi GST_MAKE_FOURCC ('m','o','v','i')
@@ -455,6 +456,41 @@
guint32 totalframes;
} gst_riff_dmlh;
+/* taken from libsndfile/wav.c (LGPL) */
+typedef struct _gst_riff_acid {
+ /* 4 bytes (int) type of file:
+ * this appears to be a bit mask,however some combinations
+ * are probably impossible and/or qualified as "errors"
+ *
+ * 0x01 On: One Shot Off: Loop
+ * 0x02 On: Root note is Set Off: No root
+ * 0x04 On: Stretch is On, Off: Strech is OFF
+ * 0x08 On: Disk Based Off: Ram based
+ * 0x10 On: ?????????? Off: ????????? (Acidizer puts that ON)
+ */
+ guint32 loop_type;
+ /* 2 bytes (short) root note
+ * if type 0x10 is OFF : [C,C#,(...),B] -> [0x30 to 0x3B]
+ * if type 0x10 is ON : [C,C#,(...),B] -> [0x3C to 0x47]
+ * (both types fit on same MIDI pitch albeit different octaves, so who cares)
+ */
+ guint16 root_note;
+ /* 2 bytes (short) ??? always set to 0x8000
+ * 4 bytes (float) ??? seems to be always 0
+ */
+ guint16 unknown1;
+ gfloat unknown2;
+ /* 4 bytes (int) number of beats
+ * 2 bytes (short) meter denominator //always 4 in SF/ACID
+ * 2 bytes (short) meter numerator //always 4 in SF/ACID
+ * //are we sure about the order?? usually its num/denom
+ * 4 bytes (float) tempo
+ */
+ guint32 number_of_beats;
+ guint16 meter_d, meter_n;
+ gfloat tempo;
+} gst_riff_acid;
+
G_END_DECLS
#endif /* __GST_RIFF_IDS_H__ */
