freeswitch/src/switch_core_asr.c

136 lines
3.8 KiB
C

/*
* FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
* Copyright (C) 2005/2006, Anthony Minessale II <anthmct@yahoo.com>
*
* Version: MPL 1.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is FreeSWITCH Modular Media Switching Software Library / Soft-Switch Application
*
* The Initial Developer of the Original Code is
* Anthony Minessale II <anthmct@yahoo.com>
* Portions created by the Initial Developer are Copyright (C)
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Anthony Minessale II <anthmct@yahoo.com>
* Michael Jerris <mike@jerris.com>
* Paul D. Tinsley <pdt at jackhammer.org>
*
*
* switch_core_asr.c -- Main Core Library (Speech Detection Interface)
*
*/
#include <switch.h>
#include "private/switch_core_pvt.h"
SWITCH_DECLARE(switch_status_t) switch_core_asr_open(switch_asr_handle_t *ah,
char *module_name,
char *codec, int rate, char *dest, switch_asr_flag_t *flags, switch_memory_pool_t *pool)
{
switch_status_t status;
assert(ah != NULL);
if ((ah->asr_interface = switch_loadable_module_get_asr_interface(module_name)) == 0) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "invalid asr module [%s]!\n", module_name);
return SWITCH_STATUS_GENERR;
}
ah->flags = *flags;
if (pool) {
ah->memory_pool = pool;
} else {
if ((status = switch_core_new_memory_pool(&ah->memory_pool)) != SWITCH_STATUS_SUCCESS) {
return status;
}
switch_set_flag(ah, SWITCH_ASR_FLAG_FREE_POOL);
}
ah->rate = rate;
ah->name = switch_core_strdup(ah->memory_pool, module_name);
return ah->asr_interface->asr_open(ah, codec, rate, dest, flags);
}
SWITCH_DECLARE(switch_status_t) switch_core_asr_load_grammar(switch_asr_handle_t *ah, char *grammar, char *path)
{
char *epath = NULL;
switch_status_t status;
assert(ah != NULL);
if (*path != '/') {
epath = switch_mprintf("%s%s%s", SWITCH_GLOBAL_dirs.grammar_dir, SWITCH_PATH_SEPARATOR, path);
path = epath;
}
status = ah->asr_interface->asr_load_grammar(ah, grammar, path);
switch_safe_free(epath);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_asr_unload_grammar(switch_asr_handle_t *ah, char *grammar)
{
switch_status_t status;
assert(ah != NULL);
status = ah->asr_interface->asr_unload_grammar(ah, grammar);
return status;
}
SWITCH_DECLARE(switch_status_t) switch_core_asr_pause(switch_asr_handle_t *ah)
{
assert(ah != NULL);
return ah->asr_interface->asr_pause(ah);
}
SWITCH_DECLARE(switch_status_t) switch_core_asr_resume(switch_asr_handle_t *ah)
{
assert(ah != NULL);
return ah->asr_interface->asr_resume(ah);
}
SWITCH_DECLARE(switch_status_t) switch_core_asr_close(switch_asr_handle_t *ah, switch_asr_flag_t *flags)
{
assert(ah != NULL);
return ah->asr_interface->asr_close(ah, flags);
}
SWITCH_DECLARE(switch_status_t) switch_core_asr_feed(switch_asr_handle_t *ah, void *data, unsigned int len, switch_asr_flag_t *flags)
{
assert(ah != NULL);
return ah->asr_interface->asr_feed(ah, data, len, flags);
}
SWITCH_DECLARE(switch_status_t) switch_core_asr_check_results(switch_asr_handle_t *ah, switch_asr_flag_t *flags)
{
assert(ah != NULL);
return ah->asr_interface->asr_check_results(ah, flags);
}
SWITCH_DECLARE(switch_status_t) switch_core_asr_get_results(switch_asr_handle_t *ah, char **xmlstr, switch_asr_flag_t *flags)
{
assert(ah != NULL);
return ah->asr_interface->asr_get_results(ah, xmlstr, flags);
}