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FS-11320 #resolve pass json string as param to ASR module

This commit is contained in:
Seven Du 2018-08-08 11:46:33 +08:00 committed by Mike Jerris
parent ae4e48fa15
commit 9056af8785
1 changed files with 36 additions and 1 deletions
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37
src/switch_ivr_async.c
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@ -4941,6 +4941,33 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech_init(switch_core_sessio
return SWITCH_STATUS_SUCCESS;
}
static void asr_set_json_text_params(switch_core_session_t *session, switch_asr_handle_t *ah)
{
switch_event_header_t *hp;
switch_event_t *event, *cevent;
const char *variable_prefix = "asr_json_param_";
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_core_get_variables(&event);
switch_channel_get_variables(channel, &cevent);
switch_event_merge(event, cevent);
for (hp = event->headers; hp; hp = hp->next) {
char *var = hp->name;
char *val = hp->value;
if (!strncasecmp(var, variable_prefix, strlen(variable_prefix)) && !zstr(val)) {
char *json_var = var + strlen(variable_prefix);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "setting json param %s = %s\n", json_var, val);
switch_core_asr_text_param(ah, json_var, val);
}
}
switch_event_destroy(&event);
switch_event_destroy(&cevent);
}
SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech(switch_core_session_t *session,
const char *mod_name,
const char *grammar, const char *name, const char *dest, switch_asr_handle_t *ah)
@ -4949,6 +4976,8 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech(switch_core_session_t *
switch_status_t status;
struct speech_thread_handle *sth = switch_channel_get_private(channel, SWITCH_SPEECH_KEY);
const char *p;
int resume = 0;
if (!sth) {
/* No speech thread handle available yet, init speech detection first. */
@ -4961,15 +4990,21 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_detect_speech(switch_core_session_t *
return SWITCH_STATUS_NOT_INITALIZED;
}
} else {
switch_ivr_resume_detect_speech(session);
resume = 1;
}
asr_set_json_text_params(session, sth->ah);
if (switch_core_asr_load_grammar(sth->ah, grammar, name) != SWITCH_STATUS_SUCCESS) {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Error loading Grammar\n");
switch_ivr_stop_detect_speech(session);
return SWITCH_STATUS_FALSE;
}
if (resume) {
switch_ivr_resume_detect_speech(session);
}
if ((p = switch_channel_get_variable(channel, "fire_asr_events")) && switch_true(p)) {
switch_set_flag(sth->ah, SWITCH_ASR_FLAG_FIRE_EVENTS);
}