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FS-7378 #resolve #comment play_and_detect_speech can now detect DTMF if you set the playback_terminators channel variable to any or specific DTMF. The result will be stored in speech_detect_result and in playback_terminator_used. Also added channel variable play_and_detect_speech_close_asr which will release the speech recognition port when the detection is completed. This will prevent speech licenses from being held the entire call.

This commit is contained in:
Chris Rienzo 2015-03-18 15:05:29 -04:00
parent 44118fa8e6
commit ab3d967115
1 changed files with 56 additions and 27 deletions
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83
src/switch_ivr_async.c
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@ -3854,6 +3854,8 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_bind_dtmf_meta_session(switch_core_se
return SWITCH_STATUS_SUCCESS;
}
#define PLAY_AND_DETECT_DONE 1
#define PLAY_AND_DETECT_DONE_RECOGNIZING 2
typedef struct {
int done;
char *result;
@ -3862,29 +3864,54 @@ typedef struct {
static switch_status_t play_and_detect_input_callback(switch_core_session_t *session, void *input, switch_input_type_t input_type, void *data, unsigned int len)
{
play_and_detect_speech_state_t *state = (play_and_detect_speech_state_t *)data;
switch_event_t *event;
switch_channel_t *channel = switch_core_session_get_channel(session);
if (input_type == SWITCH_INPUT_TYPE_EVENT) {
event = (switch_event_t *)input;
if (event->event_id == SWITCH_EVENT_DETECTED_SPEECH && !state->done) {
const char *speech_type = switch_event_get_header(event, "Speech-Type");
if (!zstr(speech_type)) {
if (!strcasecmp(speech_type, "detected-speech")) {
const char *result;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "(%s) DETECTED SPEECH\n", switch_channel_get_name(channel));
result = switch_event_get_body(event);
if (!zstr(result)) {
state->result = switch_core_session_strdup(session, result);
} else {
if (!state->done) {
switch_channel_t *channel = switch_core_session_get_channel(session);
if (input_type == SWITCH_INPUT_TYPE_EVENT) {
switch_event_t *event;
event = (switch_event_t *)input;
if (event->event_id == SWITCH_EVENT_DETECTED_SPEECH) {
const char *speech_type = switch_event_get_header(event, "Speech-Type");
if (!zstr(speech_type)) {
if (!strcasecmp(speech_type, "detected-speech")) {
const char *result;
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "(%s) DETECTED SPEECH\n", switch_channel_get_name(channel));
result = switch_event_get_body(event);
if (!zstr(result)) {
state->result = switch_core_session_strdup(session, result);
} else {
state->result = "";
}
state->done = PLAY_AND_DETECT_DONE_RECOGNIZING;
return SWITCH_STATUS_BREAK;
} else if (!strcasecmp(speech_type, "begin-speaking")) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "(%s) START OF SPEECH\n", switch_channel_get_name(channel));
return SWITCH_STATUS_BREAK;
} else if (!strcasecmp("closed", speech_type)) {
state->done = PLAY_AND_DETECT_DONE_RECOGNIZING;
state->result = "";
return SWITCH_STATUS_BREAK;
}
state->done = 1;
return SWITCH_STATUS_BREAK;
} else if (!strcasecmp(speech_type, "begin-speaking")) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "(%s) START OF SPEECH\n", switch_channel_get_name(channel));
return SWITCH_STATUS_BREAK;
}
}
} else if (input_type == SWITCH_INPUT_TYPE_DTMF) {
switch_dtmf_t *dtmf = (switch_dtmf_t *) input;
const char *terminators = switch_channel_get_variable(channel, SWITCH_PLAYBACK_TERMINATORS_VARIABLE);
if (terminators) {
if (!strcasecmp(terminators, "any")) {
terminators = "1234567890*#";
} else if (!strcasecmp(terminators, "none")) {
terminators = NULL;
}
}
if (terminators && strchr(terminators, dtmf->digit)) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "(%s) ACCEPT TERMINATOR %c\n", switch_channel_get_name(channel), dtmf->digit);
switch_channel_set_variable_printf(channel, SWITCH_PLAYBACK_TERMINATOR_USED, "%c", dtmf->digit);
state->result = switch_core_session_sprintf(session, "DIGIT: %c", dtmf->digit);
state->done = PLAY_AND_DETECT_DONE;
return SWITCH_STATUS_BREAK;
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "(%s) IGNORE NON-TERMINATOR DIGIT %c\n", switch_channel_get_name(channel), dtmf->digit);
}
}
}
return SWITCH_STATUS_SUCCESS;
@ -3901,7 +3928,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_and_detect_speech(switch_core_se
switch_status_t status = SWITCH_STATUS_SUCCESS;
int recognizing = 0;
switch_input_args_t myargs = { 0 };
play_and_detect_speech_state_t state = { 0, "" };
play_and_detect_speech_state_t state = { 0 };
switch_channel_t *channel = switch_core_session_get_channel(session);
arg_recursion_check_start(args);
@ -3929,7 +3956,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_and_detect_speech(switch_core_se
status = switch_ivr_play_file(session, NULL, file, args);
if (args->dmachine && switch_ivr_dmachine_last_ping(args->dmachine) != SWITCH_STATUS_SUCCESS) {
state.done = 1;
state.done |= PLAY_AND_DETECT_DONE;
goto done;
}
@ -3943,23 +3970,25 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_and_detect_speech(switch_core_se
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_INFO, "(%s) WAITING FOR RESULT\n", switch_channel_get_name(channel));
while (!state.done && switch_channel_ready(channel)) {
status = switch_ivr_sleep(session, input_timeout, SWITCH_FALSE, args);
if (args->dmachine && switch_ivr_dmachine_last_ping(args->dmachine) != SWITCH_STATUS_SUCCESS) {
state.done = 1;
state.done |= PLAY_AND_DETECT_DONE;
goto done;
}
}
if (status != SWITCH_STATUS_BREAK && status != SWITCH_STATUS_SUCCESS) {
goto done;
}
}
}
recognizing = !state.done;
done:
if (recognizing) {
if (recognizing && !(state.done & PLAY_AND_DETECT_DONE_RECOGNIZING)) {
switch_ivr_pause_detect_speech(session);
}
if (recognizing && switch_true(switch_channel_get_variable(channel, "play_and_detect_speech_close_asr"))) {
switch_ivr_stop_detect_speech(session);
}
*result = state.result;
@ -3969,7 +3998,7 @@ done:
arg_recursion_check_stop(args);
return status;;
return status;
}
struct speech_thread_handle {