mirror of
https://github.com/signalwire/freeswitch.git
synced 2025-07-01 05:12:37 +00:00
Added extra credits. Adjusted indentation.
git-svn-id: http://svn.freeswitch.org/svn/freeswitch/trunk@10643 d0543943-73ff-0310-b7d9-9358b9ac24b2
This commit is contained in:
Eric des Courtis
parent
d3852f3aee
commit
b31df55196
@ -21,6 +21,16 @@
|
||||
*
|
||||
* Eric des Courtis <eric.des.courtis@benbria.com>
|
||||
*
|
||||
* Special thanks to the following companies for their help:
|
||||
* - JohnnyVoIP
|
||||
* - Magor Communications Corporation
|
||||
*
|
||||
* Special thanks to the following people for their help:
|
||||
* - The FreeSWITCH Team
|
||||
* - Matt Battig
|
||||
* - Dean Swan
|
||||
* - Lucas Cornelisse
|
||||
* - Kevin Green
|
||||
*
|
||||
* mod_vmd.c -- Voicemail Detection Module
|
||||
*
|
||||
@ -156,9 +166,7 @@ static double median(double *m, int n);
|
||||
#define PRINT2(a, b) do{ switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, a, b); }while(0)
|
||||
*/
|
||||
|
||||
static switch_bool_t vmd_callback(switch_media_bug_t *bug,
|
||||
void *user_data,
|
||||
switch_abc_type_t type)
|
||||
static switch_bool_t vmd_callback(switch_media_bug_t * bug, void *user_data, switch_abc_type_t type)
|
||||
{
|
||||
vmd_session_info_t *vmd_info;
|
||||
switch_codec_t *read_codec;
|
||||
@ -194,8 +202,7 @@ static switch_bool_t vmd_callback(switch_media_bug_t *bug,
|
||||
return SWITCH_TRUE;
|
||||
}
|
||||
|
||||
static switch_bool_t process_data(vmd_session_info_t *vmd_info,
|
||||
switch_frame_t *frame)
|
||||
static switch_bool_t process_data(vmd_session_info_t * vmd_info, switch_frame_t * frame)
|
||||
{
|
||||
uint32_t i;
|
||||
unsigned int j;
|
||||
@ -283,8 +290,7 @@ static void find_beep(vmd_session_info_t *vmd_info, switch_frame_t *frame)
|
||||
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "Beep-Status", "stop");
|
||||
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Beep-Time", "%d", (int) vmd_info->timestamp / POINTS);
|
||||
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Unique-ID",
|
||||
"%s", switch_core_session_get_uuid(vmd_info->session));
|
||||
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Unique-ID", "%s", switch_core_session_get_uuid(vmd_info->session));
|
||||
switch_event_add_header(event, SWITCH_STACK_BOTTOM, "Frequency", "%6.4lf", vmd_info->beep_freq);
|
||||
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "call-command", "vmd");
|
||||
|
||||
@ -295,11 +301,7 @@ static void find_beep(vmd_session_info_t *vmd_info, switch_frame_t *frame)
|
||||
switch_core_session_queue_event(vmd_info->session, &event);
|
||||
switch_event_fire(&event_copy);
|
||||
|
||||
switch_log_printf(
|
||||
SWITCH_CHANNEL_LOG,
|
||||
SWITCH_LOG_INFO,
|
||||
"<<< VMD - Beep Detected >>>\n"
|
||||
);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "<<< VMD - Beep Detected >>>\n");
|
||||
switch_channel_set_variable(channel, "vmd_detect", "TRUE");
|
||||
|
||||
vmd_info->timestamp = 0;
|
||||
@ -327,11 +329,9 @@ static void find_beep(vmd_session_info_t *vmd_info, switch_frame_t *frame)
|
||||
}
|
||||
|
||||
for (c = 0, i = 0; i < POINTS; j++, j %= POINTS, i++) {
|
||||
if (vmd_info->points[j].freq < TOLERANCE_T(med) &&
|
||||
vmd_info->points[j].freq > TOLERANCE_B(med)){
|
||||
if (vmd_info->points[j].freq < TOLERANCE_T(med) && vmd_info->points[j].freq > TOLERANCE_B(med)) {
|
||||
if (vmd_info->points[j].ampl > MIN_AMPL &&
|
||||
vmd_info->points[j].freq > MIN_FREQ &&
|
||||
vmd_info->points[j].freq < MAX_FREQ){
|
||||
vmd_info->points[j].freq > MIN_FREQ && vmd_info->points[j].freq < MAX_FREQ) {
|
||||
c++;
|
||||
}
|
||||
}
|
||||
@ -363,8 +363,10 @@ static double median(double *m, int n)
|
||||
min = max = m[0];
|
||||
|
||||
for (i = 1; i < n; i++) {
|
||||
if(m[i] < min) min = m[i];
|
||||
if(m[i] > max) max = m[i];
|
||||
if (m[i] < min)
|
||||
min = m[i];
|
||||
if (m[i] > max)
|
||||
max = m[i];
|
||||
}
|
||||
|
||||
for (;;) {
|
||||
@ -433,14 +435,10 @@ double ampl_estimator(double *x)
|
||||
/* The DESA-2 algorithm */
|
||||
double freq_estimator(double *x)
|
||||
{
|
||||
return 0.5 * acos(
|
||||
(((x[2] * x[2]) - (x[0] * x[4]))
|
||||
-
|
||||
( (x[1] * x[1]) - (x[0] * x[2]))
|
||||
-
|
||||
( (x[3] * x[3]) - (x[2] * x[4])))
|
||||
/
|
||||
(2.0 * ((x[2] * x[2]) - (x[1] * x[3])))
|
||||
return 0.5 * acos((((x[2] * x[2]) - (x[0] * x[4]))
|
||||
- ((x[1] * x[1]) - (x[0] * x[2]))
|
||||
- ((x[3] * x[3]) - (x[2] * x[4])))
|
||||
/ (2.0 * ((x[2] * x[2]) - (x[1] * x[3])))
|
||||
|
||||
);
|
||||
}
|
||||
@ -451,20 +449,13 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_vmd_load)
|
||||
switch_application_interface_t *app_interface;
|
||||
switch_api_interface_t *api_interface;
|
||||
/* connect my internal structure to the blank pointer passed to me */
|
||||
*module_interface =
|
||||
switch_loadable_module_create_module_interface(pool, modname);
|
||||
*module_interface = switch_loadable_module_create_module_interface(pool, modname);
|
||||
|
||||
switch_log_printf(
|
||||
SWITCH_CHANNEL_LOG,
|
||||
SWITCH_LOG_NOTICE,
|
||||
"Voicemail detection enabled\n"
|
||||
);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Voicemail detection enabled\n");
|
||||
|
||||
SWITCH_ADD_APP(app_interface, "vmd", "Detect beeps", "Detect voicemail beeps",
|
||||
vmd_start_function, "[start] [stop]", SAF_NONE);
|
||||
SWITCH_ADD_APP(app_interface, "vmd", "Detect beeps", "Detect voicemail beeps", vmd_start_function, "[start] [stop]", SAF_NONE);
|
||||
|
||||
SWITCH_ADD_API(api_interface, "vmd", "Detected voicemail beeps",
|
||||
vmd_api_main, VMD_SYNTAX);
|
||||
SWITCH_ADD_API(api_interface, "vmd", "Detected voicemail beeps", vmd_api_main, VMD_SYNTAX);
|
||||
|
||||
/* indicate that the module should continue to be loaded */
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
@ -479,7 +470,8 @@ SWITCH_STANDARD_APP(vmd_start_function)
|
||||
vmd_session_info_t *vmd_info;
|
||||
int i;
|
||||
|
||||
if (session == NULL) return;
|
||||
if (session == NULL)
|
||||
return;
|
||||
|
||||
channel = switch_core_session_get_channel(session);
|
||||
|
||||
@ -495,18 +487,12 @@ SWITCH_STANDARD_APP(vmd_start_function)
|
||||
}
|
||||
|
||||
/* We have already started */
|
||||
switch_log_printf(
|
||||
SWITCH_CHANNEL_LOG,
|
||||
SWITCH_LOG_WARNING,
|
||||
"Cannot run 2 at once on the same channel!\n"
|
||||
);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Cannot run 2 at once on the same channel!\n");
|
||||
|
||||
return;
|
||||
}
|
||||
|
||||
vmd_info = (vmd_session_info_t *)switch_core_session_alloc(
|
||||
session,
|
||||
sizeof(vmd_session_info_t)
|
||||
vmd_info = (vmd_session_info_t *) switch_core_session_alloc(session, sizeof(vmd_session_info_t)
|
||||
);
|
||||
|
||||
vmd_info->state = BEEP_NOT_DETECTED;
|
||||
@ -521,21 +507,10 @@ SWITCH_STANDARD_APP(vmd_start_function)
|
||||
vmd_info->points[i].ampl = 0.0;
|
||||
}
|
||||
|
||||
status = switch_core_media_bug_add(
|
||||
session,
|
||||
vmd_callback,
|
||||
vmd_info,
|
||||
0,
|
||||
SMBF_READ_REPLACE,
|
||||
&bug
|
||||
);
|
||||
status = switch_core_media_bug_add(session, vmd_callback, vmd_info, 0, SMBF_READ_REPLACE, &bug);
|
||||
|
||||
if (status != SWITCH_STATUS_SUCCESS) {
|
||||
switch_log_printf(
|
||||
SWITCH_CHANNEL_LOG,
|
||||
SWITCH_LOG_ERROR,
|
||||
"Failure hooking to stream\n"
|
||||
);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failure hooking to stream\n");
|
||||
return;
|
||||
}
|
||||
|
||||
@ -546,11 +521,7 @@ SWITCH_STANDARD_APP(vmd_start_function)
|
||||
/* Called when the system shuts down */
|
||||
SWITCH_MODULE_SHUTDOWN_FUNCTION(mod_vmd_shutdown)
|
||||
{
|
||||
switch_log_printf(
|
||||
SWITCH_CHANNEL_LOG,
|
||||
SWITCH_LOG_NOTICE,
|
||||
"Voicemail detection disabled\n"
|
||||
);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_NOTICE, "Voicemail detection disabled\n");
|
||||
|
||||
return SWITCH_STATUS_SUCCESS;
|
||||
}
|
||||
@ -619,11 +590,7 @@ SWITCH_STANDARD_API(vmd_api_main)
|
||||
}
|
||||
|
||||
/* We have already started */
|
||||
switch_log_printf(
|
||||
SWITCH_CHANNEL_LOG,
|
||||
SWITCH_LOG_WARNING,
|
||||
"Cannot run 2 at once on the same channel!\n"
|
||||
);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Cannot run 2 at once on the same channel!\n");
|
||||
|
||||
switch_safe_free(ccmd);
|
||||
return SWITCH_STATUS_FALSE;
|
||||
@ -638,9 +605,7 @@ SWITCH_STANDARD_API(vmd_api_main)
|
||||
|
||||
/* Allocate memory attached to this FreeSWITCH session for
|
||||
* use in the callback routine and to store state information */
|
||||
vmd_info = (vmd_session_info_t *)switch_core_session_alloc(
|
||||
vmd_session,
|
||||
sizeof(vmd_session_info_t)
|
||||
vmd_info = (vmd_session_info_t *) switch_core_session_alloc(vmd_session, sizeof(vmd_session_info_t)
|
||||
);
|
||||
|
||||
/* Set initial values and states */
|
||||
@ -659,22 +624,11 @@ SWITCH_STANDARD_API(vmd_api_main)
|
||||
|
||||
/* Add a media bug that allows me to intercept the
|
||||
* reading leg of the audio stream */
|
||||
status = switch_core_media_bug_add(
|
||||
vmd_session,
|
||||
vmd_callback,
|
||||
vmd_info,
|
||||
0,
|
||||
SMBF_READ_REPLACE,
|
||||
&bug
|
||||
);
|
||||
status = switch_core_media_bug_add(vmd_session, vmd_callback, vmd_info, 0, SMBF_READ_REPLACE, &bug);
|
||||
|
||||
/* If adding a media bug fails exit */
|
||||
if (status != SWITCH_STATUS_SUCCESS) {
|
||||
switch_log_printf(
|
||||
SWITCH_CHANNEL_LOG,
|
||||
SWITCH_LOG_ERROR,
|
||||
"Failure hooking to stream\n"
|
||||
);
|
||||
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failure hooking to stream\n");
|
||||
|
||||
switch_safe_free(ccmd);
|
||||
return SWITCH_STATUS_FALSE;
|
||||
@ -701,4 +655,3 @@ SWITCH_STANDARD_API(vmd_api_main)
|
||||
* For VIM:
|
||||
* vim:set softtabstop=4 shiftwidth=4 tabstop=4 expandtab:
|
||||
*/
|
||||
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user