asterisk/codecs/ilbc/packing.h
Matthew Jordan 16adf6de8c 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
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Merged revisions 351450 from http://svn.asterisk.org/svn/asterisk/branches/1.8
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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
2012-01-18 21:06:29 +00:00

69 lines
2.6 KiB
C

/******************************************************************
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