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Merged revisions 110880 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4 ................ r110880 | kpfleming | 2008-03-26 09:42:35 -0700 (Wed, 26 Mar 2008) | 10 lines Merged revisions 110869 via svnmerge from https://origsvn.digium.com/svn/asterisk/branches/1.2 ........ r110869 | kpfleming | 2008-03-26 08:53:46 -0700 (Wed, 26 Mar 2008) | 2 lines due to licensing restrictions, we cannot distribute the source code for iLBC encoding and decoding... so remove it, and add instructions on how the user can obtain it themselves ........ ................ git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@110881 65c4cc65-6c06-0410-ace0-fbb531ad65f3
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@@ -1,59 +0,0 @@
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/******************************************************************
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iLBC Speech Coder ANSI-C Source Code
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hpOutput.c
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Copyright (C) The Internet Society (2004).
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All Rights Reserved.
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******************************************************************/
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#include "constants.h"
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#include "hpOutput.h"
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/*----------------------------------------------------------------*
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* Output high-pass filter
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*---------------------------------------------------------------*/
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void hpOutput(
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float *In, /* (i) vector to filter */
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int len,/* (i) length of vector to filter */
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float *Out, /* (o) the resulting filtered vector */
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float *mem /* (i/o) the filter state */
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){
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int i;
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float *pi, *po;
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/* all-zero section*/
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pi = &In[0];
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po = &Out[0];
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for (i=0; i<len; i++) {
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*po = hpo_zero_coefsTbl[0] * (*pi);
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*po += hpo_zero_coefsTbl[1] * mem[0];
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*po += hpo_zero_coefsTbl[2] * mem[1];
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mem[1] = mem[0];
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mem[0] = *pi;
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po++;
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pi++;
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}
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/* all-pole section*/
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po = &Out[0];
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for (i=0; i<len; i++) {
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*po -= hpo_pole_coefsTbl[1] * mem[2];
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*po -= hpo_pole_coefsTbl[2] * mem[3];
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mem[3] = mem[2];
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mem[2] = *po;
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po++;
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}
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}
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