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Version 0.1.11 from FTP 

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@407 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
markster 2002-01-17 14:37:17 +00:00
parent 523a0bda29
commit 4fafe751bf
2 changed files with 10 additions and 9 deletions
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11
callerid.c
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@ -43,7 +43,8 @@ struct callerid_state {
int len;
};
float dr[4], di[4];
float cid_dr[4], cid_di[4];
float clidsb = 8000.0 / 1200.0;
#define CALLERID_SPACE 2200.0 /* 2200 hz for "0" */
@ -52,10 +53,10 @@ float clidsb = 8000.0 / 1200.0;
void callerid_init(void)
{
/* Initialize stuff for inverse FFT */
dr[0] = cos(CALLERID_SPACE * 2.0 * M_PI / 8000.0);
di[0] = sin(CALLERID_SPACE * 2.0 * M_PI / 8000.0);
dr[1] = cos(CALLERID_MARK * 2.0 * M_PI / 8000.0);
di[1] = sin(CALLERID_MARK * 2.0 * M_PI / 8000.0);
cid_dr[0] = cos(CALLERID_SPACE * 2.0 * M_PI / 8000.0);
cid_di[0] = sin(CALLERID_SPACE * 2.0 * M_PI / 8000.0);
cid_dr[1] = cos(CALLERID_MARK * 2.0 * M_PI / 8000.0);
cid_di[1] = sin(CALLERID_MARK * 2.0 * M_PI / 8000.0);
}
struct callerid_state *callerid_new(void)

8
include/asterisk/callerid.h
View File

@ -139,16 +139,16 @@ extern int ast_isphonenumber(char *n);
* routines (used by ADSI for example)
*/
extern float dr[4];
extern float di[4];
extern float cid_dr[4];
extern float cid_di[4];
extern float clidsb;
static inline float callerid_getcarrier(float *cr, float *ci, int bit)
{
/* Move along. There's nothing to see here... */
float t;
t = *cr * dr[bit] - *ci * di[bit];
*ci = *cr * di[bit] + *ci * dr[bit];
t = *cr * cid_dr[bit] - *ci * cid_di[bit];
*ci = *cr * cid_di[bit] + *ci * cid_dr[bit];
*cr = t;
t = 2.0 - (*cr * *cr + *ci * *ci);