Initial import of the ircii-pana-1.1-final source tree.

git-svn-id: svn://svn.code.sf.net/p/bitchx/code/tags/ircii-pana-1.1-final@1 13b04d17-f746-0410-82c6-800466cd88b0

dll/amp/getdata.h

@@ -0,0 +1,42 @@
+/* this file is a part of amp software, (C) tomislav uzelac 1996,1997
+*/
+ 
+/* getdata.h 
+ *
+ * tomislav uzelac  Apr 1996
+ */
+ 
+extern int decode_scalefactors(struct SIDE_INFO *info,struct AUDIO_HEADER *header,int gr,int ch); 
+
+extern int is_max[21];
+extern int intensity_scale;
+
+#ifdef GETDATA
+
+static char t_slen1[16]={0,0,0,0,3,1,1,1,2,2,2,3,3,3,4,4};
+static char t_slen2[16]={0,1,2,3,0,1,2,3,1,2,3,1,2,3,2,3};
+
+int is_max[21]; /* the maximum value of is_pos. for short blocks is_max[sfb=0] == is_max[6],
+	   	 * it's sloppy but i'm sick of waisting storage. blaah...
+		 */
+int intensity_scale;
+
+int decode_scalefactors(struct SIDE_INFO *info,struct AUDIO_HEADER *header,int gr,int ch);
+
+/* my implementation of MPEG2 scalefactor decoding is, admitably, horrible
+ * anyway, just take a look at pg.18 of MPEG2 specs, and you'll know what
+ * this is all about
+ */
+static const char spooky_table[2][3][3][4]={
+{
+{ {6,5,5,5},   {9,9,9,9},   {6,9,9,9} },
+{ {6,5,7,3},   {9,9,12,6},  {6,9,12,6}},
+{ {11,10,0,0}, {18,18,0,0}, {15,18,0,0}} 
+},
+{
+{ {7,7,7,0},   {12,12,12,0}, {6,15,12,0}},
+{ {6,6,6,3},   {12,9,9,6},   {6,12,9,6}},
+{ {8,8,5,0},   {15,12,9,0},  {6,18,9,0}}
+}};
+
+#endif /* GETDATA */