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add dds to teletone

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git-svn-id: http://svn.openzap.org/svn/openzap/trunk@223 a93c3328-9c30-0410-af19-c9cd2b2d52af
This commit is contained in:
Anthony Minessale 2007-06-06 22:58:13 +00:00
parent f23950ffdd
commit ffbba3d321
7 changed files with 294 additions and 151 deletions
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41
libs/openzap/Makefile
View File

@ -63,8 +63,34 @@ $(SRC)/zap_zt.o \
$(SRC)/zap_wanpipe.o
HEADERS=$(SRC)/isdn/include/Q931.h \
$(SRC)/include/openzap.h
HEADERS= $(SRC)/include/fsk.h \
$(SRC)/include/g711.h \
$(SRC)/include/hashtable.h \
$(SRC)/include/hashtable_itr.h \
$(SRC)/include/hashtable_private.h \
$(SRC)/include/libteletone_detect.h \
$(SRC)/include/libteletone_generate.h \
$(SRC)/include/libteletone.h \
$(SRC)/include/openzap.h \
$(SRC)/include/sangoma_tdm_api.h \
$(SRC)/include/uart.h \
$(SRC)/include/wanpipe_tdm_api_iface.h \
$(SRC)/include/zap_analog.h \
$(SRC)/include/zap_buffer.h \
$(SRC)/include/zap_config.h \
$(SRC)/include/zap_isdn.h \
$(SRC)/include/zap_skel.h \
$(SRC)/include/zap_threadmutex.h \
$(SRC)/include/zap_types.h \
$(SRC)/include/zap_wanpipe.h \
$(SRC)/include/zap_zt.h \
$(SRC)/isdn/include/mfifo.h \
$(SRC)/isdn/include/national.h \
$(SRC)/isdn/include/Q921.h \
$(SRC)/isdn/include/Q931.h \
$(SRC)/isdn/include/Q931ie.h \
$(SRC)/isdn/include/Q932.h
PWD=$(shell pwd)
INCS=-I$(PWD)/$(SRC)//include -I$(PWD)/$(SRC)//isdn/include
@ -76,10 +102,12 @@ TMP=-I$(LIBPRI) -I$(SRC)/include -I./src -w
include general.makefile
$(OBJS): $(HEADERS)
all: $(MYLIB)
$(MYLIB): $(OBJS) $(HEADERS)
ar rcs $(MYLIB) $(OBJS)
ar rcs $(MYLIB) $(OBJS)
ranlib $(MYLIB)
testapp: $(SRC)/testapp.c $(MYLIB)
@ -88,6 +116,9 @@ testapp: $(SRC)/testapp.c $(MYLIB)
testcid: $(SRC)/testcid.c $(MYLIB)
$(CC) $(INCS) -L. $(SRC)/testcid.c -o testcid -lopenzap -lm -lpthread
testtones: $(SRC)/testtones.c $(MYLIB)
$(CC) $(INCS) -L. $(SRC)/testtones.c -o testtones -lopenzap -lm -lpthread
testisdn: $(SRC)/testisdn.c $(MYLIB)
$(CC) $(INCS) -L. $(SRC)/testisdn.c -o testisdn -lopenzap -lm -lpthread
@ -109,7 +140,7 @@ priserver: $(MYLIB) $(SRC)/priserver.o $(SRC)/sangoma_pri.o $(LIBPRI)/$(LIBPRIA)
$(SRC)/zap_io.o: $(SRC)/zap_io.c
$(CC) $(MOD_CFLAGS) $(CC_CFLAGS) $(CFLAGS) -c $< -o $@
%.o: %.c
%.o: %.c
$(CC) $(CC_CFLAGS) $(CFLAGS) -c $< -o $@
dox:
@ -127,6 +158,6 @@ mod_openzap-clean:
@if [ -f mod_openzap/mod_openzap.so ] ; then cd mod_openzap && make clean ; fi
clean: mod_openzap-clean
rm -f $(SRC)/*.o $(SRC)/isdn/*.o $(MYLIB) *~ \#* testapp testcid priserver testisdn testanalog
rm -f $(SRC)/*.o $(SRC)/isdn/*.o $(MYLIB) *~ \#* testapp testcid testtones priserver testisdn testanalog
@if [ -f $(LIBPRI)/$(LIBPRIA) ] ; then cd $(LIBPRI) && make clean ; fi

4
libs/openzap/general.makefile
View File

@ -1,3 +1,3 @@
CC=gcc
CC_CFLAGS += -Wall -Werror -Wextra -std=c99 -pedantic -ansi -Wno-unused-parameter
CC=gcc
CC_CFLAGS += -Wall -Werror -Wextra -std=c99 -pedantic -Wno-unused-parameter

29
libs/openzap/src/include/libteletone.h
View File

@ -73,32 +73,37 @@
#ifdef __cplusplus
extern "C" {
#ifdef _doh
}
#endif
#endif
#define TELETONE_MAX_DTMF_DIGITS 128
#define TELETONE_MAX_TONES 6
#define TELETONE_TONE_RANGE 127
typedef double teletone_process_t;
typedef double teletone_process_t;
/*! \file libteletone.h
\brief Top level include file
/*! \file libteletone.h
\brief Top level include file
This file should be included by applications using the library
*/
This file should be included by applications using the library
*/
/*! \brief An abstraction to store a tone mapping */
typedef struct {
/*! An array of tone frequencies */
teletone_process_t freqs[TELETONE_MAX_TONES];
} teletone_tone_map_t;
/*! \brief An abstraction to store a tone mapping */
typedef struct {
/*! An array of tone frequencies */
teletone_process_t freqs[TELETONE_MAX_TONES];
} teletone_tone_map_t;
#if !defined(M_PI)
/* C99 systems may not define M_PI */
/* C99 systems may not define M_PI */
#define M_PI 3.14159265358979323846264338327
#endif
#ifdef _MSC_VER
typedef __int16 int16_t;
typedef __int16 int16_t;
#endif
#include <libteletone_generate.h>

276
libs/openzap/src/include/libteletone_generate.h
View File

@ -72,13 +72,30 @@
#define LIBTELETONE_GENERATE_H
#ifdef __cplusplus
extern "C" {
#ifdef _doh
}
#endif
#endif
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <math.h>
#if !defined(powf)
extern float powf (float, float);
#endif
#include <string.h>
#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
#ifndef _MSC_VER
#include <unistd.h>
#include <stdint.h>
#endif
#include <fcntl.h>
#include <sys/types.h>
@ -87,115 +104,174 @@ extern "C" {
#include <stdarg.h>
#include <libteletone.h>
#define TELETONE_VOL_DB_MAX 0
#define TELETONE_VOL_DB_MIN -63
struct teletone_dds_state {
uint32_t phase_rate;
uint32_t scale_factor;
uint32_t phase_accumulator;
int16_t sample;
int32_t tx_level;
};
typedef struct teletone_dds_state teletone_dds_state_t;
#define SINE_TABLE_MAX 128
#define SINE_TABLE_LEN (SINE_TABLE_MAX - 1)
#define MAX_PHASE_ACCUMULATOR 0x10000 * 0x10000
/* 3.14 == the max power on ulaw (alaw is 3.17) */
/* 3.02 represents twice the power */
#define DBM0_MAX_POWER (3.14f + 3.02f)
const int16_t TELETONE_SINES[SINE_TABLE_MAX];
static __inline__ int16_t teletone_dds_modulate_sample(teletone_dds_state_t *dds)
{
int32_t bitmask = dds->phase_accumulator, sine_index = (bitmask >>= 23) & SINE_TABLE_LEN;
int16_t sample;
if (bitmask & SINE_TABLE_MAX) {
sine_index = SINE_TABLE_LEN - sine_index;
}
sample = TELETONE_SINES[sine_index];
if (bitmask & (SINE_TABLE_MAX * 2)) {
sample *= -1;
}
dds->phase_accumulator += dds->phase_rate;
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)
{
dds->phase_accumulator = 0;
dds->phase_rate = (int32_t) ((tone * MAX_PHASE_ACCUMULATOR) / rate);
/*! \file libteletone_generate.h
\brief Tone Generation Routines
if (dds->tx_level != tx_level || !dds->scale_factor) {
dds->scale_factor = (int) (powf(10.0f, (tx_level - DBM0_MAX_POWER) / 20.0f) * (32767.0f * 1.414214f));
}
dds->tx_level = tx_level;
}
This module is responsible for tone generation specifics
*/
typedef int16_t teletone_audio_t;
struct teletone_generation_session;
typedef int (*tone_handler)(struct teletone_generation_session *ts, teletone_tone_map_t *map);
/*! \brief An abstraction to store a tone generation session */
struct teletone_generation_session {
/*! An array of tone mappings to character mappings */
teletone_tone_map_t TONES[TELETONE_TONE_RANGE];
/*! The number of channels the output audio should be in */
int channels;
/*! The Rate in hz of the output audio */
int rate;
/*! The duration (in samples) of the output audio */
int duration;
/*! The duration of silence to append after the initial audio is generated */
int wait;
/*! The duration (in samples) of the output audio (takes prescedence over actual duration value) */
int tmp_duration;
/*! The duration of silence to append after the initial audio is generated (takes prescedence over actual wait value)*/
int tmp_wait;
/*! Number of loops to repeat a single instruction*/
int loops;
/*! 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%) */
int 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 */
int volume;
/*! Debug on/off */
int debug;
/*! FILE stream to write debug data to */
FILE *debug_stream;
/*! Extra user data to attach to the session*/
void *user_data;
/*! Buffer for storing sample data (dynamic) */
teletone_audio_t *buffer;
/*! Size of the buffer */
int datalen;
/*! In-Use size of the buffer */
int samples;
/*! Callback function called during generation */
int dynamic;
tone_handler handler;
};
typedef struct teletone_generation_session teletone_generation_session_t;
static __inline__ void teletone_dds_state_set_tx_level(teletone_dds_state_t *dds, float tx_level)
{
dds->scale_factor = (int) (powf(10.0f, (tx_level - DBM0_MAX_POWER) / 20.0f) * (32767.0f * 1.414214f));
}
/*!
\brief Assign a set of tones to a tone_session indexed by a paticular index/character
\param ts the tone generation session
\param index the index to map the tone to
\param ... up to TELETONE_MAX_TONES frequencies terminated by 0.0
\return 0
*/
int teletone_set_tone(teletone_generation_session_t *ts, int index, ...);
/*!
\brief Assign a set of tones to a single tone map
\param map the map to assign the tones to
\param ... up to TELETONE_MAX_TONES frequencies terminated by 0.0
\return 0
*/
int teletone_set_map(teletone_tone_map_t *map, ...);
/*! \file libteletone_generate.h
\brief Tone Generation Routines
/*!
\brief Initilize a tone generation session
\param ts the tone generation session to initilize
\param buflen the size of the buffer(in samples) to dynamically allocate
\param handler a callback function to execute when a tone generation instruction is complete
\param user_data optional user data to send
\return 0
*/
int teletone_init_session(teletone_generation_session_t *ts, int buflen, tone_handler handler, void *user_data);
This module is responsible for tone generation specifics
*/
/*!
\brief Free the buffer allocated by a tone generation session
\param ts the tone generation session to destroy
\return 0
*/
int teletone_destroy_session(teletone_generation_session_t *ts);
typedef int16_t teletone_audio_t;
struct teletone_generation_session;
typedef int (*tone_handler)(struct teletone_generation_session *ts, teletone_tone_map_t *map);
/*!
\brief Execute a single tone generation instruction
\param ts the tone generation session to consult for parameters
\param map the tone mapping to use for the frequencies
\return 0
*/
int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *map);
/*! \brief An abstraction to store a tone generation session */
struct teletone_generation_session {
/*! An array of tone mappings to character mappings */
teletone_tone_map_t TONES[TELETONE_TONE_RANGE];
/*! The number of channels the output audio should be in */
int channels;
/*! The Rate in hz of the output audio */
int rate;
/*! The duration (in samples) of the output audio */
int duration;
/*! The duration of silence to append after the initial audio is generated */
int wait;
/*! The duration (in samples) of the output audio (takes prescedence over actual duration value) */
int tmp_duration;
/*! The duration of silence to append after the initial audio is generated (takes prescedence over actual wait value)*/
int tmp_wait;
/*! Number of loops to repeat a single instruction*/
int loops;
/*! 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;
/*! 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;
/*! Debug on/off */
int debug;
/*! FILE stream to write debug data to */
FILE *debug_stream;
/*! Extra user data to attach to the session*/
void *user_data;
/*! Buffer for storing sample data (dynamic) */
teletone_audio_t *buffer;
/*! Size of the buffer */
int datalen;
/*! In-Use size of the buffer */
int samples;
/*! Callback function called during generation */
int dynamic;
tone_handler handler;
};
/*!
\brief Execute a tone generation script and call callbacks after each instruction
\param ts the tone generation session to execute on
\param cmd the script to execute
\return 0
*/
int teletone_run(teletone_generation_session_t *ts, char *cmd);
typedef struct teletone_generation_session teletone_generation_session_t;
/*!
\brief Assign a set of tones to a tone_session indexed by a paticular index/character
\param ts the tone generation session
\param index the index to map the tone to
\param ... up to TELETONE_MAX_TONES frequencies terminated by 0.0
\return 0
*/
int teletone_set_tone(teletone_generation_session_t *ts, int index, ...);
/*!
\brief Assign a set of tones to a single tone map
\param map the map to assign the tones to
\param ... up to TELETONE_MAX_TONES frequencies terminated by 0.0
\return 0
*/
int teletone_set_map(teletone_tone_map_t *map, ...);
/*!
\brief Initilize a tone generation session
\param ts the tone generation session to initilize
\param buflen the size of the buffer(in samples) to dynamically allocate
\param handler a callback function to execute when a tone generation instruction is complete
\param user_data optional user data to send
\return 0
*/
int teletone_init_session(teletone_generation_session_t *ts, int buflen, tone_handler handler, void *user_data);
/*!
\brief Free the buffer allocated by a tone generation session
\param ts the tone generation session to destroy
\return 0
*/
int teletone_destroy_session(teletone_generation_session_t *ts);
/*!
\brief Execute a single tone generation instruction
\param ts the tone generation session to consult for parameters
\param map the tone mapping to use for the frequencies
\return 0
*/
int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *map);
/*!
\brief Execute a tone generation script and call callbacks after each instruction
\param ts the tone generation session to execute on
\param cmd the script to execute
\return 0
*/
int teletone_run(teletone_generation_session_t *ts, char *cmd);
#ifdef __cplusplus
}

3
libs/openzap/src/include/openzap.h
View File

@ -34,8 +34,9 @@
#ifndef OPENZAP_H
#define OPENZAP_H
#ifndef _XOPEN_SOURCE
#define _XOPEN_SOURCE 500
#define _XOPEN_SOURCE 600
#endif
#ifndef HAVE_STRINGS_H

5
libs/openzap/src/libteletone_detect.c
View File

@ -90,7 +90,8 @@
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <math.h>
#include <libteletone_detect.h>
#ifndef _MSC_VER
#include <stdint.h>
#endif
@ -98,7 +99,7 @@
#include <stdio.h>
#include <time.h>
#include <fcntl.h>
#include <libteletone_detect.h>
static teletone_detection_descriptor_t dtmf_detect_row[GRID_FACTOR];
static teletone_detection_descriptor_t dtmf_detect_col[GRID_FACTOR];

87
libs/openzap/src/libteletone_generate.c
View File

@ -70,6 +70,7 @@
*/
#include <libteletone.h>
#define SMAX 32767
#define SMIN -32768
#define normalize_to_16bit(n) if (n > SMAX) n = SMAX; else if (n < SMIN) n = SMIN;
@ -78,6 +79,25 @@
#pragma warning(disable:4706)
#endif
const int16_t TELETONE_SINES[SINE_TABLE_MAX] = {
0x00c9, 0x025b, 0x03ed, 0x057f, 0x0711, 0x08a2, 0x0a33, 0x0bc4,
0x0d54, 0x0ee4, 0x1073, 0x1201, 0x138f, 0x151c, 0x16a8, 0x1833,
0x19be, 0x1b47, 0x1cd0, 0x1e57, 0x1fdd, 0x2162, 0x22e5, 0x2467,
0x25e8, 0x2768, 0x28e5, 0x2a62, 0x2bdc, 0x2d55, 0x2ecc, 0x3042,
0x31b5, 0x3327, 0x3497, 0x3604, 0x3770, 0x38d9, 0x3a40, 0x3ba5,
0x3d08, 0x3e68, 0x3fc6, 0x4121, 0x427a, 0x43d1, 0x4524, 0x4675,
0x47c4, 0x490f, 0x4a58, 0x4b9e, 0x4ce1, 0x4e21, 0x4f5e, 0x5098,
0x51cf, 0x5303, 0x5433, 0x5560, 0x568a, 0x57b1, 0x58d4, 0x59f4,
0x5b10, 0x5c29, 0x5d3e, 0x5e50, 0x5f5e, 0x6068, 0x616f, 0x6272,
0x6371, 0x646c, 0x6564, 0x6657, 0x6747, 0x6832, 0x691a, 0x69fd,
0x6add, 0x6bb8, 0x6c8f, 0x6d62, 0x6e31, 0x6efb, 0x6fc2, 0x7083,
0x7141, 0x71fa, 0x72af, 0x735f, 0x740b, 0x74b3, 0x7556, 0x75f4,
0x768e, 0x7723, 0x77b4, 0x7840, 0x78c8, 0x794a, 0x79c9, 0x7a42,
0x7ab7, 0x7b27, 0x7b92, 0x7bf9, 0x7c5a, 0x7cb7, 0x7d0f, 0x7d63,
0x7db1, 0x7dfb, 0x7e3f, 0x7e7f, 0x7eba, 0x7ef0, 0x7f22, 0x7f4e,
0x7f75, 0x7f98, 0x7fb5, 0x7fce, 0x7fe2, 0x7ff1, 0x7ffa, 0x7fff
};
int teletone_set_tone(teletone_generation_session_t *ts, int index, ...)
{
@ -122,8 +142,9 @@ int teletone_init_session(teletone_generation_session_t *ts, int buflen, tone_ha
ts->tmp_wait = -1;
ts->handler = handler;
ts->user_data = user_data;
ts->volume = 1500;
ts->volume = -7;
ts->decay_step = 0;
ts->decay_factor = 1;
if (buflen) {
if ((ts->buffer = calloc(buflen, sizeof(teletone_audio_t))) == 0) {
return -1;
@ -181,34 +202,24 @@ static int ensure_buffer(teletone_generation_session_t *ts, int need)
int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *map)
{
teletone_process_t period = (1.0 / ts->rate) / ts->channels;
/*teletone_process_t period = (1.0 / ts->rate) / ts->channels;*/
int i, c;
int freqlen = 0;
teletone_process_t tones[TELETONE_MAX_TONES];
int decay = 0;
teletone_dds_state_t tones[TELETONE_MAX_TONES];
//int decay = 0;
int duration;
int wait = 0;
teletone_process_t sample;
int32_t sample;
int32_t dc = 0;
float 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;
wait = (ts->tmp_wait > -1) ? ts->tmp_wait : ts->wait;
if (map->freqs[0] > 0) {
if (ts->decay_step) {
if (ts->decay_factor) {
decay = (duration - (duration / ts->decay_factor));
} else {
decay = 0;
}
}
if (ts->volume < 0) {
ts->volume = 0;
}
for (freqlen = 0; map->freqs[freqlen] && freqlen < TELETONE_MAX_TONES; freqlen++) {
tones[freqlen] = (teletone_process_t) map->freqs[freqlen] * (2 * M_PI);
teletone_dds_state_set_tone(&tones[freqlen], map->freqs[freqlen], ts->rate, vol);
}
if (ts->channels > 1) {
@ -220,17 +231,28 @@ int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *m
return -1;
}
}
for (ts->samples = 0; ts->samples < ts->datalen && ts->samples < duration; ts->samples++) {
if (ts->decay_step && !(ts->samples % ts->decay_step) && ts->volume > 0 && ts->samples > decay) {
ts->volume += ts->decay_direction;
if (ts->decay_direction && ++dc >= ts->decay_step) {
float nvol = vol + ts->decay_direction * ts->decay_factor;
int j;
if (nvol <= TELETONE_VOL_DB_MAX && nvol >= TELETONE_VOL_DB_MIN) {
vol = nvol;
for (j = 0; map->freqs[j] && j < TELETONE_MAX_TONES; j++) {
teletone_dds_state_set_tx_level(&tones[j], vol);
}
dc = 0;
}
}
sample = (teletone_process_t) 128;
sample = 128;
for (i = 0; i < freqlen; i++) {
sample += ((teletone_process_t) 2 * (ts->volume > 0 ? ts->volume : 1) * cos(tones[i] * ts->samples * period));
int32_t s = teletone_dds_modulate_sample(&tones[i]);
sample += s;
}
normalize_to_16bit(sample);
sample /= freqlen;
ts->buffer[ts->samples] = (teletone_audio_t)sample;
for (c = 1; c < ts->channels; c++) {
@ -261,7 +283,8 @@ int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *m
fprintf(ts->debug_stream, "%s%0.2f", i == 0 ? "" : "+",map->freqs[i]);
}
fprintf(ts->debug_stream, ") [volume %d; samples %d(%dms) x %d channel%s; wait %d(%dms); decay_factor %d; decay_step %d; wrote %d bytes]\n",
fprintf(ts->debug_stream,
") [volume %0.2fDb; samples %d(%dms) x %d channel%s; wait %d(%dms); decay_factor %0.2f; decay_step %d(%dms); wrote %d bytes]\n",
ts->volume,
duration,
duration / (ts->rate / 1000),
@ -271,6 +294,7 @@ int teletone_mux_tones(teletone_generation_session_t *ts, teletone_tone_map_t *m
wait / (ts->rate / 1000),
ts->decay_factor,
ts->decay_step,
ts->decay_step / (ts->rate / 1000),
ts->samples * 2);
}
}
@ -330,18 +354,23 @@ int teletone_run(teletone_generation_session_t *ts, char *cmd)
ts->duration = atoi(cur + 2) * (ts->rate / 1000);
break;
case 'v':
ts->volume = atoi(cur + 2);
{
float vol = atof(cur + 2);
if (vol <= TELETONE_VOL_DB_MAX && vol >= TELETONE_VOL_DB_MIN) {
ts->volume = vol;
}
}
break;
case '>':
ts->decay_factor = atoi(cur + 2);
ts->decay_step = atoi(cur + 2) * (ts->rate / 1000);
ts->decay_direction = -1;
break;
case '<':
ts->decay_factor = atoi(cur + 2);
ts->decay_step = atoi(cur + 2) * (ts->rate / 1000);
ts->decay_direction = 1;
break;
case '+':
ts->decay_step = atoi(cur + 2);
ts->decay_factor = atof(cur + 2);
break;
case 'w':
ts->wait = atoi(cur + 2) * (ts->rate / 1000);