Include iLBC source code for distribution with Asterisk

This patch includes the iLBC source code for distribution with Asterisk.
Clarification regarding the iLBC source code was provided by Google, and
the appropriate licenses have been included in the codecs/ilbc folder.

Review: https://reviewboard.asterisk.org/r/1675
Review: https://reviewboard.asterisk.org/r/1649

(closes issue: ASTERISK-18943)
Reporter: Leif Madsen
Tested by: Matt Jordan
........

Merged revisions 351450 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 351451 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@351452 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 68 insertions, 0 deletions

diff --git a/codecs/ilbc/packing.h b/codecs/ilbc/packing.h
new file mode 100644
index 000000000..cbb9f82df
--- /dev/null
+++ b/codecs/ilbc/packing.h
@@ -0,0 +1,68 @@
+
+   /******************************************************************
+
+       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
+