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authorkpfleming <kpfleming@f38db490-d61c-443f-a65b-d21fe96a405b>2008-03-26 17:10:28 +0000
committerkpfleming <kpfleming@f38db490-d61c-443f-a65b-d21fe96a405b>2008-03-26 17:10:28 +0000
commitadfd7f5f1374a6b0d8b60a43684d5ec4dff51874 (patch)
treeed528d6e40b53ec5f3c552e8397f98e471c489db /codecs/ilbc/syntFilter.c
parent97619eccb1ddd6771755f632ace40f4119743c60 (diff)
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: http://svn.digium.com/svn/asterisk/trunk@110881 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'codecs/ilbc/syntFilter.c')
-rw-r--r--codecs/ilbc/syntFilter.c108
1 files changed, 0 insertions, 108 deletions
diff --git a/codecs/ilbc/syntFilter.c b/codecs/ilbc/syntFilter.c
deleted file mode 100644
index bb7f7a559..000000000
--- a/codecs/ilbc/syntFilter.c
+++ /dev/null
@@ -1,108 +0,0 @@
-
-/******************************************************************
-
- iLBC Speech Coder ANSI-C Source Code
-
- syntFilter.c
-
- Copyright (C) The Internet Society (2004).
- All Rights Reserved.
-
-******************************************************************/
-
-#include "iLBC_define.h"
-#include "syntFilter.h"
-
-/*----------------------------------------------------------------*
- * LP synthesis filter.
- *---------------------------------------------------------------*/
-
-void syntFilter(
- float *Out, /* (i/o) Signal to be filtered */
- float *a, /* (i) LP parameters */
- int len, /* (i) Length of signal */
- float *mem /* (i/o) Filter state */
-){
- int i, j;
- float *po, *pi, *pa, *pm;
-
- po=Out;
-
- /* Filter first part using memory from past */
-
- for (i=0; i<LPC_FILTERORDER; i++) {
- pi=&Out[i-1];
- pa=&a[1];
- pm=&mem[LPC_FILTERORDER-1];
- for (j=1; j<=i; j++) {
- *po-=(*pa++)*(*pi--);
- }
- for (j=i+1; j<LPC_FILTERORDER+1; j++) {
- *po-=(*pa++)*(*pm--);
- }
- po++;
- }
-
- /* Filter last part where the state is entierly in
- the output vector */
-
- for (i=LPC_FILTERORDER; i<len; i++) {
-
-
- pi=&Out[i-1];
- pa=&a[1];
- for (j=1; j<LPC_FILTERORDER+1; j++) {
- *po-=(*pa++)*(*pi--);
- }
- po++;
- }
-
- /* Update state vector */
-
- memcpy(mem, &Out[len-LPC_FILTERORDER],
- LPC_FILTERORDER*sizeof(float));
-}
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