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switch teletone to use float. 

git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@5278 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Michael Jerris 2007-06-07 01:02:39 +00:00
parent 607bb13d5a
commit d90df53666
4 changed files with 37 additions and 29 deletions
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2
libs/libteletone/src/libteletone.h
View File

@ -78,7 +78,7 @@ extern "C" {
#define TELETONE_MAX_TONES 6
#define TELETONE_TONE_RANGE 127
typedef double teletone_process_t;
typedef float teletone_process_t;
/*! \file libteletone.h
\brief Top level include file

20
libs/libteletone/src/libteletone_detect.c
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@ -144,17 +144,17 @@ void teletone_dtmf_detect_init (teletone_dtmf_detect_state_t *dtmf_detect_state,
dtmf_detect_state->hit1 = dtmf_detect_state->hit2 = 0;
for (i = 0; i < GRID_FACTOR; i++) {
theta = M_TWO_PI*(dtmf_row[i]/(teletone_process_t)sample_rate);
dtmf_detect_row[i].fac = 2.0*cos(theta);
theta = (teletone_process_t)(M_TWO_PI*(dtmf_row[i]/(teletone_process_t)sample_rate));
dtmf_detect_row[i].fac = (teletone_process_t)(2.0*cos(theta));
theta = M_TWO_PI*(dtmf_col[i]/(teletone_process_t)sample_rate);
dtmf_detect_col[i].fac = 2.0*cos(theta);
theta = (teletone_process_t)(M_TWO_PI*(dtmf_col[i]/(teletone_process_t)sample_rate));
dtmf_detect_col[i].fac = (teletone_process_t)(2.0*cos(theta));
theta = M_TWO_PI*(dtmf_row[i]*2.0/(teletone_process_t)sample_rate);
dtmf_detect_row_2nd[i].fac = 2.0*cos(theta);
theta = (teletone_process_t)(M_TWO_PI*(dtmf_row[i]*2.0/(teletone_process_t)sample_rate));
dtmf_detect_row_2nd[i].fac = (teletone_process_t)(2.0*cos(theta));
theta = M_TWO_PI*(dtmf_col[i]*2.0/(teletone_process_t)sample_rate);
dtmf_detect_col_2nd[i].fac = 2.0*cos(theta);
theta = (teletone_process_t)(M_TWO_PI*(dtmf_col[i]*2.0/(teletone_process_t)sample_rate));
dtmf_detect_col_2nd[i].fac = (teletone_process_t)(2.0*cos(theta));
goertzel_init (&dtmf_detect_state->row_out[i], &dtmf_detect_row[i]);
goertzel_init (&dtmf_detect_state->col_out[i], &dtmf_detect_col[i]);
@ -200,8 +200,8 @@ void teletone_multi_tone_init(teletone_multi_tone_t *mt, teletone_tone_map_t *ma
break;
}
mt->tone_count++;
theta = M_TWO_PI*(map->freqs[x]/(teletone_process_t)mt->sample_rate);
mt->tdd[x].fac = 2.0 * cos(theta);
theta = (teletone_process_t)(M_TWO_PI*(map->freqs[x]/(teletone_process_t)mt->sample_rate));
mt->tdd[x].fac = (teletone_process_t)(2.0 * cos(theta));
goertzel_init (&mt->gs[x], &mt->tdd[x]);
goertzel_init (&mt->gs2[x], &mt->tdd[x]);
}

10
libs/libteletone/src/libteletone_generate.c
View File

@ -211,7 +211,7 @@ int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *m
int wait = 0;
int32_t sample;
int32_t dc = 0;
float vol = ts->volume;
teletone_process_t vol = ts->volume;
ts->samples = 0;
memset(tones, 0, sizeof(tones[0]) * TELETONE_MAX_TONES);
duration = (ts->tmp_duration > -1) ? ts->tmp_duration : ts->duration;
@ -234,7 +234,7 @@ int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *m
for (ts->samples = 0; ts->samples < ts->datalen && ts->samples < duration; ts->samples++) {
if (ts->decay_direction && ++dc >= ts->decay_step) {
float nvol = vol + ts->decay_direction * ts->decay_factor;
teletone_process_t nvol = vol + ts->decay_direction * ts->decay_factor;
int j;
if (nvol <= TELETONE_VOL_DB_MAX && nvol >= TELETONE_VOL_DB_MIN) {
@ -355,7 +355,7 @@ int teletone_run(teletone_generation_session_t *ts, char *cmd)
break;
case 'v':
{
float vol = atof(cur + 2);
teletone_process_t vol = (teletone_process_t)atof(cur + 2);
if (vol <= TELETONE_VOL_DB_MAX && vol >= TELETONE_VOL_DB_MIN) {
ts->volume = vol;
}
@ -370,7 +370,7 @@ int teletone_run(teletone_generation_session_t *ts, char *cmd)
ts->decay_direction = 1;
break;
case '+':
ts->decay_factor = atof(cur + 2);
ts->decay_factor = (teletone_process_t)atof(cur + 2);
break;
case 'w':
ts->wait = atoi(cur + 2) * (ts->rate / 1000);
@ -419,7 +419,7 @@ int teletone_run(teletone_generation_session_t *ts, char *cmd)
ts->tmp_wait = atoi(p) * (ts->rate / 1000);
i++;
} else {
mymap.freqs[i++ - 2] = atof(p);
mymap.freqs[i++ - 2] = (teletone_process_t)atof(p);
}
p = next;

34
libs/libteletone/src/libteletone_generate.h
View File

@ -79,7 +79,23 @@ extern "C" {
#include <stdio.h>
#include <stdlib.h>
#ifdef WIN32
#ifdef _MSC_VER
#ifndef __inline__
#define __inline__ __inline
#endif
#endif
typedef unsigned __int64 uint64_t;
typedef unsigned __int32 uint32_t;
typedef unsigned __int16 uint16_t;
typedef unsigned __int8 uint8_t;
typedef __int64 int64_t;
typedef __int32 int32_t;
typedef __int16 int16_t;
typedef __int8 int8_t;
#else
#include <stdint.h>
#endif
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
@ -89,17 +105,9 @@ extern float powf (float, float);
#endif
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifndef _MSC_VER
#include <unistd.h>
#include <stdint.h>
#endif
#include <fcntl.h>
#include <sys/types.h>
#include <errno.h>
#include <assert.h>
#include <stdarg.h>
#include <libteletone.h>
@ -112,7 +120,7 @@ struct teletone_dds_state {
uint32_t scale_factor;
uint32_t phase_accumulator;
int16_t sample;
float tx_level;
teletone_process_t tx_level;
};
typedef struct teletone_dds_state teletone_dds_state_t;
@ -145,7 +153,7 @@ static __inline__ int16_t teletone_dds_modulate_sample(teletone_dds_state_t *dds
return (int16_t) (sample * dds->scale_factor >> 15);
}
static __inline__ void teletone_dds_state_set_tone(teletone_dds_state_t *dds, float tone, uint32_t rate, float tx_level)
static __inline__ void teletone_dds_state_set_tone(teletone_dds_state_t *dds, teletone_process_t tone, uint32_t rate, teletone_process_t tx_level)
{
dds->phase_accumulator = 0;
dds->phase_rate = (int32_t) ((tone * MAX_PHASE_ACCUMULATOR) / rate);
@ -158,7 +166,7 @@ static __inline__ void teletone_dds_state_set_tone(teletone_dds_state_t *dds, fl
dds->tx_level = tx_level;
}
static __inline__ void teletone_dds_state_set_tx_level(teletone_dds_state_t *dds, float tx_level)
static __inline__ void teletone_dds_state_set_tx_level(teletone_dds_state_t *dds, teletone_process_t tx_level)
{
dds->scale_factor = (int) (powf(10.0f, (tx_level - DBM0_MAX_POWER) / 20.0f) * (32767.0f * 1.414214f));
}
@ -196,13 +204,13 @@ struct teletone_generation_session {
/*! Number of loops to repeat the entire set of instructions*/
int LOOPS;
/*! Number to mutiply total samples by to determine when to begin ascent or decent e.g. 0=beginning 4=(last 25%) */
float decay_factor;
teletone_process_t decay_factor;
/*! Direction to perform volume increase/decrease 1/-1*/
int decay_direction;
/*! Number of samples between increase/decrease of volume */
int decay_step;
/*! Volume factor of the tone */
float volume;
teletone_process_t volume;
/*! Debug on/off */
int debug;
/*! FILE stream to write debug data to */