capidtmf.c File Reference

#include "platform.h"
#include "capidtmf.h"

Go to the source code of this file.

Macros
#define	FILE_   "CAPIDTMF.C"
#define	trace(a)
#define	capidtmf_byte_leading_zeroes(b)   (capidtmf_leading_zeroes_table[(BYTE)(b)])
#define	capidtmf_word_leading_zeroes(w)   (((w) & 0xff00) ? capidtmf_leading_zeroes_table[(w) >> 8] : 8 + capidtmf_leading_zeroes_table[(w)])
#define	capidtmf_dword_leading_zeroes(d)   (((d) & 0xffff0000L) ? (((d) & 0xff000000L) ? capidtmf_leading_zeroes_table[(d) >> 24] : 8 + capidtmf_leading_zeroes_table[(d) >> 16]) : (((d) & 0xff00) ? 16 + capidtmf_leading_zeroes_table[(d) >> 8] : 24 + capidtmf_leading_zeroes_table[(d)]))
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_697   0
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_770   1
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_852   2
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_941   3
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1209   4
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1336   5
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1477   6
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1633   7
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_635   8
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1010   9
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1140   10
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1272   11
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1405   12
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1555   13
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1715   14
#define	CAPIDTMF_RECV_GUARD_SNR_INDEX_1875   15
#define	CAPIDTMF_RECV_GUARD_SNR_DONTCARE   0xc000
#define	CAPIDTMF_RECV_NO_DIGIT   0xff
#define	CAPIDTMF_RECV_TIME_GRANULARITY   (CAPIDTMF_RECV_ACCUMULATE_CYCLES + 1)
#define	CAPIDTMF_RECV_INDICATION_DIGIT   0x0001
#define	CAPIDTMF_RECV_WINDOWED_SAMPLES   32

Functions
void	capidtmf_recv_enable (t_capidtmf_state *p_state, word min_digit_duration, word min_gap_duration)
void	capidtmf_recv_disable (t_capidtmf_state *p_state)
word	capidtmf_recv_indication (t_capidtmf_state *p_state, byte *buffer)
void	capidtmf_recv_block (t_capidtmf_state *p_state, byte *buffer, word length)
void	capidtmf_init (t_capidtmf_state *p_state, byte ulaw)

Macro Definition Documentation

#define capidtmf_byte_leading_zeroes

(

b

)

(capidtmf_leading_zeroes_table[(BYTE)(b)])

Definition at line 177 of file capidtmf.c.

#define capidtmf_dword_leading_zeroes

(

d

)

(((d) & 0xffff0000L) ? (((d) & 0xff000000L) ? capidtmf_leading_zeroes_table[(d) >> 24] : 8 + capidtmf_leading_zeroes_table[(d) >> 16]) : (((d) & 0xff00) ? 16 + capidtmf_leading_zeroes_table[(d) >> 8] : 24 + capidtmf_leading_zeroes_table[(d)]))

Definition at line 179 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_DONTCARE   0xc000

Definition at line 341 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1010   9

Definition at line 333 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1140   10

Definition at line 334 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1209   4

Definition at line 328 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1272   11

Definition at line 335 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1336   5

Definition at line 329 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1405   12

Definition at line 336 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1477   6

Definition at line 330 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1555   13

Definition at line 337 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1633   7

Definition at line 331 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1715   14

Definition at line 338 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_1875   15

Definition at line 339 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_635   8

Definition at line 332 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_697   0

Definition at line 324 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_770   1

Definition at line 325 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_852   2

Definition at line 326 of file capidtmf.c.

#define CAPIDTMF_RECV_GUARD_SNR_INDEX_941   3

Definition at line 327 of file capidtmf.c.

#define CAPIDTMF_RECV_INDICATION_DIGIT   0x0001

Definition at line 345 of file capidtmf.c.

#define CAPIDTMF_RECV_NO_DIGIT   0xff

Definition at line 342 of file capidtmf.c.

#define CAPIDTMF_RECV_TIME_GRANULARITY   (CAPIDTMF_RECV_ACCUMULATE_CYCLES + 1)

Definition at line 343 of file capidtmf.c.

#define CAPIDTMF_RECV_WINDOWED_SAMPLES   32

Definition at line 488 of file capidtmf.c.

#define capidtmf_word_leading_zeroes

(

w

)

(((w) & 0xff00) ? capidtmf_leading_zeroes_table[(w) >> 8] : 8 + capidtmf_leading_zeroes_table[(w)])

Definition at line 178 of file capidtmf.c.

#define FILE_   "CAPIDTMF.C"

Definition at line 41 of file capidtmf.c.

#define trace

(

a

)

Definition at line 46 of file capidtmf.c.

Function Documentation

void capidtmf_init	(	t_capidtmf_state *	p_state,
		byte	ulaw
	)

Definition at line 678 of file capidtmf.c.

void capidtmf_recv_block	(	t_capidtmf_state *	p_state,
		byte *	buffer,
		word	length
	)

Definition at line 490 of file capidtmf.c.

void capidtmf_recv_disable

(

t_capidtmf_state *

p_state

)

Definition at line 449 of file capidtmf.c.

void capidtmf_recv_enable	(	t_capidtmf_state *	p_state,
		word	min_digit_duration,
		word	min_gap_duration
	)

Definition at line 430 of file capidtmf.c.

word capidtmf_recv_indication	(	t_capidtmf_state *	p_state,
		byte *	buffer
	)

Definition at line 464 of file capidtmf.c.