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pjproject-2.11.1/third_party/ilbc/packing.h

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+
+   /******************************************************************
+
+       iLBC Speech Coder ANSI-C Source Code
+
+       packing.h
+
+       Copyright (C) The Internet Society (2004).
+       All Rights Reserved.
+
+   ******************************************************************/
+
+   #ifndef __PACKING_H
+   #define __PACKING_H
+
+   void packsplit(
+       int *index,                 /* (i) the value to split */
+       int *firstpart,             /* (o) the value specified by most
+                                          significant bits */
+       int *rest,                  /* (o) the value specified by least
+                                          significant bits */
+       int bitno_firstpart,    /* (i) number of bits in most
+                                          significant part */
+       int bitno_total             /* (i) number of bits in full range
+                                          of value */
+   );
+
+   void packcombine(
+       int *index,                 /* (i/o) the msb value in the
+                                          combined value out */
+       int rest,                   /* (i) the lsb value */
+       int bitno_rest              /* (i) the number of bits in the
+                                          lsb part */
+   );
+
+   void dopack(
+       unsigned char **bitstream,  /* (i/o) on entrance pointer to
+                                          place in bitstream to pack
+                                          new data, on exit pointer
+                                          to place in bitstream to
+                                          pack future data */
+       int index,                  /* (i) the value to pack */
+       int bitno,                  /* (i) the number of bits that the
+                                          value will fit within */
+       int *pos                /* (i/o) write position in the
+                                          current byte */
+   );
+
+
+
+
+
+   void unpack(
+       unsigned char **bitstream,  /* (i/o) on entrance pointer to
+                                          place in bitstream to
+                                          unpack new data from, on
+                                          exit pointer to place in
+                                          bitstream to unpack future
+                                          data from */
+       int *index,                 /* (o) resulting value */
+       int bitno,                  /* (i) number of bits used to
+                                          represent the value */
+       int *pos                /* (i/o) read position in the
+                                          current byte */
+   );
+
+   #endif
+