static apt_bool_t recog_request_stop(mrcp_recog_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_t *response_message;
if(state_machine->state == RECOGNIZER_STATE_RECOGNIZING) {
mrcp_request_id_list_t *request_id_list = NULL;
mrcp_generic_header_t *generic_header = mrcp_generic_header_get(message);
if(generic_header && mrcp_generic_header_property_check(message,GENERIC_HEADER_ACTIVE_REQUEST_ID_LIST) == TRUE) {
if(generic_header->active_request_id_list.count) {
/* selective STOP request */
request_id_list = &generic_header->active_request_id_list;
}
}
if(!request_id_list || active_request_id_list_find(generic_header,state_machine->recog->start_line.request_id) == TRUE) {
/* found in-progress RECOGNIZE request, stop it */
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Found IN-PROGRESS RECOGNIZE Request "APT_SIDRES_FMT" [%"MRCP_REQUEST_ID_FMT"]",
MRCP_MESSAGE_SIDRES(message),
message->start_line.request_id);
return recog_request_dispatch(state_machine,message);
}
}
else if(state_machine->state == RECOGNIZER_STATE_RECOGNIZED) {
recog_state_change(state_machine,RECOGNIZER_STATE_IDLE,message);
}
/* found no in-progress RECOGNIZE request, sending immediate response */
response_message = mrcp_response_create(message,message->pool);
recog_pending_requests_remove(state_machine,message,response_message);
return recog_response_dispatch(state_machine,response_message);
}
static apt_bool_t mrcp_client_message_send(mrcp_client_session_t *session, mrcp_channel_t *channel, mrcp_message_t *message)
{
if(!session->base.id.length) {
mrcp_message_t *response = mrcp_response_create(message,message->pool);
response->start_line.status_code = MRCP_STATUS_CODE_METHOD_FAILED;
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Raise App Failure MRCP Response "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
mrcp_app_control_message_raise(session,channel,response);
return TRUE;
}
message->channel_id.session_id = session->base.id;
message->start_line.request_id = ++session->base.last_request_id;
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Send MRCP Request "APT_NAMESIDRES_FMT" [%"MRCP_REQUEST_ID_FMT"]",
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf,
message->start_line.request_id);
if(channel->control_channel) {
/* MRCPv2 */
mrcp_client_control_message_send(channel->control_channel,message);
}
else {
/* MRCPv1 */
mrcp_session_control_request(channel->session,message);
}
return TRUE;
}
static apt_bool_t mrcp_client_message_send(mrcp_client_session_t *session, mrcp_channel_t *channel, mrcp_message_t *message)
{
if(!session->base.id.length) {
mrcp_message_t *response = mrcp_response_create(message,message->pool);
response->start_line.status_code = MRCP_STATUS_CODE_METHOD_FAILED;
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Raise App Failure MRCP Response");
mrcp_app_control_message_raise(session,channel,response);
return TRUE;
}
message->channel_id.session_id = session->base.id;
message->start_line.request_id = ++session->base.last_request_id;
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Send MRCP Request <%s@%s> [%d]",
channel->resource_name->buf,
session->base.id,
message->start_line.request_id);
if(channel->control_channel) {
/* MRCPv2 */
mrcp_client_control_message_send(channel->control_channel,message);
}
else {
/* MRCPv1 */
mrcp_session_control_request(channel->session,message);
}
return TRUE;
}
static apt_bool_t mrcp_app_failure_message_raise(mrcp_client_session_t *session)
{
mrcp_app_message_t *response;
const mrcp_app_message_t *request = session->active_request;
if(!request) {
return FALSE;
}
session->active_request = NULL;
response = mrcp_client_app_response_create(request,session->status,session->base.pool);
if(response->message_type == MRCP_APP_MESSAGE_TYPE_SIGNALING) {
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Raise App Response "APT_NAMESID_FMT" [%d] %s [%d]",
MRCP_SESSION_NAMESID(session),
response->sig_message.command_id,
session->status == MRCP_SIG_STATUS_CODE_SUCCESS ? "SUCCESS" : "FAILURE",
session->status);
}
else if(response->control_message){
mrcp_message_t *mrcp_response = mrcp_response_create(response->control_message,response->control_message->pool);
mrcp_response->start_line.status_code = MRCP_STATUS_CODE_METHOD_FAILED;
response->control_message = mrcp_response;
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Raise App MRCP Response "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
}
session->application->handler(response);
return TRUE;
}
static apt_bool_t mrcp_server_message_handler(mrcp_connection_t *connection, mrcp_message_t *message, apt_message_status_e status)
{
mrcp_connection_agent_t *agent = connection->agent;
if(status == APT_MESSAGE_STATUS_COMPLETE) {
/* message is completely parsed */
mrcp_control_channel_t *channel = mrcp_connection_channel_associate(agent,connection,message);
if(channel) {
mrcp_connection_message_receive(agent->vtable,channel,message);
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Find Channel "APT_SIDRES_FMT" in Connection %s",
MRCP_MESSAGE_SIDRES(message),
connection->id);
}
}
else if(status == APT_MESSAGE_STATUS_INVALID) {
/* error case */
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Parse MRCPv2 Data");
if(message && message->resource) {
mrcp_message_t *response;
response = mrcp_response_create(message,message->pool);
response->start_line.status_code = MRCP_STATUS_CODE_UNRECOGNIZED_MESSAGE;
if(mrcp_server_agent_messsage_send(agent,connection,response) == FALSE) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Send MRCPv2 Response");
}
}
}
return TRUE;
}
static apt_bool_t mrcp_server_message_handler(void *obj, mrcp_message_t *message, mrcp_stream_result_e result)
{
mrcp_connection_t *connection = obj;
mrcp_connection_agent_t *agent = connection->agent;
if(result == MRCP_STREAM_MESSAGE_COMPLETE) {
/* message is completely parsed */
mrcp_control_channel_t *channel = mrcp_connection_channel_associate(agent,connection,message);
if(channel) {
mrcp_connection_message_receive(agent->vtable,channel,message);
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Find Channel <%s@%s> in Connection %s",
message->channel_id.session_id.buf,
message->channel_id.resource_name.buf,
connection->id);
}
}
else if(result == MRCP_STREAM_MESSAGE_INVALID) {
/* error case */
mrcp_message_t *response;
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Parse MRCPv2 Stream");
response = mrcp_response_create(message,message->pool);
response->start_line.status_code = MRCP_STATUS_CODE_UNRECOGNIZED_MESSAGE;
if(mrcp_server_agent_messsage_send(agent,connection,response) == FALSE) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Send MRCPv2 Response");
}
}
return TRUE;
}
/* Create GET-PARAMS response */
static mrcp_message_t* get_params_response_create(mrcp_resource_factory_t *factory, mrcp_message_t *request)
{
mrcp_message_t *response;
apt_log(APT_LOG_MARK,APT_PRIO_NOTICE,"Create GET-PARAMS Response");
response = mrcp_response_create(request,request->pool);
if(response) {
apt_header_field_t *header_field;
header_field = apt_header_field_create_c("Content-Id",SAMPLE_CONTENT_ID,response->pool);
if(header_field) {
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Set %s: %s",header_field->name.buf,header_field->value.buf);
mrcp_message_header_field_add(response,header_field);
}
header_field = apt_header_field_create_c("Vendor-Specific-Params",SAMPLE_PARAM_NAME"="SAMPLE_PARAM_VALUE,response->pool);
if(header_field) {
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Set %s: %s",header_field->name.buf,header_field->value.buf);
mrcp_message_header_field_add(response,header_field);
}
header_field = apt_header_field_create_c("Voice-Age",SAMPLE_VOICE_AGE,response->pool);
if(header_field) {
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Set %s: %s",header_field->name.buf,header_field->value.buf);
mrcp_message_header_field_add(response,header_field);
}
}
return response;
}
static apt_bool_t synth_request_stop(mrcp_synth_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_t *response_message;
if(state_machine->speaker) {
mrcp_request_id_list_t *request_id_list = NULL;
mrcp_generic_header_t *generic_header = mrcp_generic_header_get(message);
if(generic_header && mrcp_generic_header_property_check(message,GENERIC_HEADER_ACTIVE_REQUEST_ID_LIST) == TRUE) {
if(generic_header->active_request_id_list.ids && generic_header->active_request_id_list.count) {
/* selective STOP request */
request_id_list = &generic_header->active_request_id_list;
}
}
if(!request_id_list || active_request_id_list_find(generic_header,state_machine->speaker->start_line.request_id) == TRUE) {
/* found in-progress SPEAK request, stop it */
apt_log(APT_PRIO_INFO,"Process STOP Request [%d]",message->start_line.request_id);
return synth_request_dispatch(state_machine,message);
}
}
/* found no in-progress SPEAK request, sending immediate response */
response_message = mrcp_response_create(message,message->pool);
synth_pending_requests_remove(state_machine,message,response_message);
return synth_response_dispatch(state_machine,response_message);
}
/** Dispatch MRCP request */
static apt_bool_t demo_recog_channel_request_dispatch(mrcp_engine_channel_t *channel, mrcp_message_t *request)
{
apt_bool_t processed = FALSE;
mrcp_message_t *response = mrcp_response_create(request,request->pool);
switch(request->start_line.method_id) {
case RECOGNIZER_SET_PARAMS:
break;
case RECOGNIZER_GET_PARAMS:
break;
case RECOGNIZER_DEFINE_GRAMMAR:
break;
case RECOGNIZER_RECOGNIZE:
processed = demo_recog_channel_recognize(channel,request,response);
break;
case RECOGNIZER_GET_RESULT:
break;
case RECOGNIZER_START_INPUT_TIMERS:
processed = demo_recog_channel_timers_start(channel,request,response);
break;
case RECOGNIZER_STOP:
processed = demo_recog_channel_stop(channel,request,response);
break;
default:
break;
}
if(processed == FALSE) {
/* send asynchronous response for not handled request */
mrcp_engine_channel_message_send(channel,response);
}
return TRUE;
}
/** Process MRCP channel request (asynchronous response MUST be sent)*/
static apt_bool_t recorder_channel_request_process(mrcp_engine_channel_t *channel, mrcp_message_t *request)
{
apt_bool_t processed = FALSE;
recorder_channel_t *recorder_channel = channel->method_obj;
mrcp_message_t *response = mrcp_response_create(request,request->pool);
switch(request->start_line.method_id) {
case RECORDER_SET_PARAMS:
break;
case RECORDER_GET_PARAMS:
break;
case RECORDER_RECORD:
processed = recorder_channel_record(recorder_channel,request,response);
break;
case RECORDER_STOP:
processed = recorder_channel_stop(recorder_channel,request,response);
break;
case RECORDER_START_INPUT_TIMERS:
processed = recorder_channel_timers_start(recorder_channel,request,response);
break;
default:
break;
}
if(processed == FALSE) {
/* send asynchronous response for not handled request */
mrcp_engine_channel_message_send(channel,response);
}
return TRUE;
}
static apt_bool_t mrcp_client_agent_request_cancel(mrcp_connection_agent_t *agent, mrcp_control_channel_t *channel, mrcp_message_t *message)
{
mrcp_message_t *response;
apt_obj_log(APT_LOG_MARK,APT_PRIO_WARNING,channel->log_obj,"Cancel MRCP Request <%s@%s> [%d]",
MRCP_MESSAGE_SIDRES(message),
message->start_line.request_id);
response = mrcp_response_create(message,message->pool);
response->start_line.status_code = MRCP_STATUS_CODE_METHOD_FAILED;
return mrcp_connection_message_receive(agent->vtable,channel,response);
}
/* Create SPEAK response */
static mrcp_message_t* speak_response_create(mrcp_resource_factory_t *factory, const mrcp_message_t *request)
{
mrcp_message_t *response;
apt_log(APT_LOG_MARK,APT_PRIO_NOTICE,"Create SPEAK Response");
response = mrcp_response_create(request,request->pool);
if(response) {
/* set IN-PROGRESS state */
response->start_line.request_state = MRCP_REQUEST_STATE_INPROGRESS;
}
return response;
}
static apt_bool_t synth_request_control(mrcp_synth_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_t *response_message;
if(state_machine->state == SYNTHESIZER_STATE_SPEAKING) {
apt_log(APT_PRIO_INFO,"Process CONTROL Request [%d]",message->start_line.request_id);
return synth_request_dispatch(state_machine,message);
}
/* found no in-progress SPEAK request, sending immediate response */
response_message = mrcp_response_create(message,message->pool);
return synth_response_dispatch(state_machine,response_message);
}
static apt_bool_t recog_request_define_grammar(mrcp_recog_state_machine_t *state_machine, mrcp_message_t *message)
{
if(state_machine->state == RECOGNIZER_STATE_RECOGNIZING) {
mrcp_message_t *response_message = mrcp_response_create(message,message->pool);
response_message->start_line.status_code = MRCP_STATUS_CODE_METHOD_NOT_VALID;
return recog_response_dispatch(state_machine,response_message);
}
else if(state_machine->state == RECOGNIZER_STATE_RECOGNIZED) {
recog_state_change(state_machine,RECOGNIZER_STATE_IDLE,message);
}
return recog_request_dispatch(state_machine,message);
}
static apt_bool_t synth_request_define_lexicon(mrcp_synth_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_t *response_message;
if(state_machine->state == SYNTHESIZER_STATE_IDLE) {
apt_log(APT_PRIO_INFO,"Process DEFINE-LEXICON Request [%d]",message->start_line.request_id);
return synth_request_dispatch(state_machine,message);
}
/* sending failuer response */
response_message = mrcp_response_create(message,message->pool);
response_message->start_line.status_code = MRCP_STATUS_CODE_METHOD_NOT_VALID;
return synth_response_dispatch(state_machine,response_message);
}
static apt_bool_t synth_request_resume(mrcp_synth_state_machine_t *state_machine, mrcp_message_t *message)
{
if(state_machine->speaker) {
/* speaking or paused state */
if(state_machine->state == SYNTHESIZER_STATE_PAUSED) {
apt_log(APT_PRIO_INFO,"Process RESUME Request [%d]",state_machine->speaker->start_line.request_id);
synth_request_dispatch(state_machine,message);
}
else {
/* speaking state */
mrcp_message_t *response_message = mrcp_response_create(message,message->pool);
synth_response_dispatch(state_machine,response_message);
}
}
else {
/* idle state */
mrcp_message_t *response_message = mrcp_response_create(message,message->pool);
response_message->start_line.status_code = MRCP_STATUS_CODE_METHOD_NOT_VALID;
synth_response_dispatch(state_machine,response_message);
}
return TRUE;
}
static apt_bool_t recog_request_recognition_start_timers(mrcp_recog_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_t *response_message;
if(state_machine->state == RECOGNIZER_STATE_RECOGNIZING) {
/* found in-progress request */
return recog_request_dispatch(state_machine,message);
}
/* found no in-progress request */
response_message = mrcp_response_create(message,message->pool);
response_message->start_line.status_code = MRCP_STATUS_CODE_METHOD_NOT_VALID;
return recog_response_dispatch(state_machine,response_message);
}
static apt_bool_t recog_request_get_result(mrcp_recog_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_t *response_message;
if(state_machine->state == RECOGNIZER_STATE_RECOGNIZED) {
/* found recognized request */
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Process GET-RESULT Request [%d]",message->start_line.request_id);
return recog_request_dispatch(state_machine,message);
}
/* found no recognized request */
response_message = mrcp_response_create(message,message->pool);
response_message->start_line.status_code = MRCP_STATUS_CODE_METHOD_NOT_VALID;
return recog_response_dispatch(state_machine,response_message);
}
static apt_bool_t recog_request_recognition_start_timers(mrcp_recog_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_t *response_message;
if(state_machine->state == RECOGNIZER_STATE_RECOGNIZING) {
/* found in-progress request */
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Process START-INPUT-TIMERS Request [%d]",message->start_line.request_id);
return recog_request_dispatch(state_machine,message);
}
/* found no in-progress request */
response_message = mrcp_response_create(message,message->pool);
response_message->start_line.status_code = MRCP_STATUS_CODE_METHOD_NOT_VALID;
return recog_response_dispatch(state_machine,response_message);
}
static apt_bool_t mrcp_unirtsp_on_announce_response(mrcp_unirtsp_agent_t *agent, mrcp_unirtsp_session_t *session, rtsp_message_t *message, const char *resource_name)
{
mrcp_message_t *mrcp_message = NULL;
if(!session || !resource_name) {
return FALSE;
}
if(rtsp_header_property_check(&message->header,RTSP_HEADER_FIELD_CONTENT_TYPE) == TRUE &&
message->header.content_type == RTSP_CONTENT_TYPE_MRCP &&
rtsp_header_property_check(&message->header,RTSP_HEADER_FIELD_CONTENT_LENGTH) == TRUE &&
message->header.content_length > 0) {
apt_text_stream_t text_stream;
mrcp_parser_t *parser;
apt_str_t resource_name_str;
text_stream.text = message->body;
apt_text_stream_reset(&text_stream);
apt_string_set(&resource_name_str,resource_name);
parser = mrcp_parser_create(agent->sig_agent->resource_factory,session->mrcp_session->pool);
mrcp_parser_resource_set(parser,&resource_name_str);
if(mrcp_parser_run(parser,&text_stream,&mrcp_message) == APT_MESSAGE_STATUS_COMPLETE) {
mrcp_message->channel_id.session_id = message->header.session_id;
}
else {
/* error case */
apt_log(RTSP_LOG_MARK,APT_PRIO_WARNING,"Failed to Parse MRCPv1 Message");
}
}
else {
/* error case */
apt_log(RTSP_LOG_MARK,APT_PRIO_WARNING,"Failed to Determine MRCPv1 Message Content");
}
if(!mrcp_message) {
if(!session->mrcp_message) {
return FALSE;
}
mrcp_message = mrcp_response_create(session->mrcp_message,session->mrcp_session->pool);
mrcp_message->start_line.status_code = MRCP_STATUS_CODE_METHOD_FAILED;
}
if(session->mrcp_message && mrcp_message->start_line.request_id == session->mrcp_message->start_line.request_id) {
session->mrcp_message = NULL;
}
mrcp_session_control_response(session->mrcp_session,mrcp_message);
return TRUE;
}
static apt_bool_t recog_request_define_grammar(mrcp_recog_state_machine_t *state_machine, mrcp_message_t *message)
{
if(state_machine->state == RECOGNIZER_STATE_RECOGNIZING) {
mrcp_message_t *response_message = mrcp_response_create(message,message->pool);
response_message->start_line.status_code = MRCP_STATUS_CODE_METHOD_NOT_VALID;
return recog_response_dispatch(state_machine,response_message);
}
else if(state_machine->state == RECOGNIZER_STATE_RECOGNIZED) {
recog_state_change(state_machine,RECOGNIZER_STATE_IDLE);
}
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Process DEFINE-GRAMMAR Request [%d]",message->start_line.request_id);
return recog_request_dispatch(state_machine,message);
}
static apt_bool_t mrcp_client_agent_messsage_send(mrcp_connection_agent_t *agent, mrcp_control_channel_t *channel, mrcp_message_t *message)
{
apt_bool_t status = FALSE;
mrcp_connection_t *connection = channel->connection;
apt_text_stream_t *stream;
mrcp_stream_result_e result;
if(!connection || !connection->sock) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"No MRCPv2 Connection");
return FALSE;
}
stream = &connection->tx_stream;
mrcp_generator_message_set(connection->generator,message);
do {
apt_text_stream_init(&connection->tx_stream,connection->tx_buffer,sizeof(connection->tx_buffer)-1);
result = mrcp_generator_run(connection->generator,stream);
if(result == MRCP_STREAM_MESSAGE_COMPLETE || result == MRCP_STREAM_MESSAGE_TRUNCATED) {
stream->text.length = stream->pos - stream->text.buf;
*stream->pos = '\0';
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Send MRCPv2 Stream %s [%lu bytes]\n%s",
connection->id,
stream->text.length,
stream->text.buf);
if(apr_socket_send(connection->sock,stream->text.buf,&stream->text.length) == APR_SUCCESS) {
status = TRUE;
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Send MRCPv2 Stream");
}
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Generate MRCPv2 Stream");
}
}
while(result == MRCP_STREAM_MESSAGE_TRUNCATED);
if(status == FALSE) {
mrcp_message_t *response = mrcp_response_create(message,message->pool);
response->start_line.method_id = message->start_line.method_id;
response->start_line.method_name = message->start_line.method_name;
response->start_line.status_code = MRCP_STATUS_CODE_METHOD_FAILED;
mrcp_connection_message_receive(agent->vtable,channel,response);
}
return TRUE;
}
static apt_bool_t recog_request_recognize(mrcp_recog_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_header_inherit(&message->header,&state_machine->properties,message->pool);
if(state_machine->state == RECOGNIZER_STATE_RECOGNIZING) {
mrcp_message_t *response;
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Queue Up RECOGNIZE Request [%d]",message->start_line.request_id);
message->start_line.request_state = MRCP_REQUEST_STATE_PENDING;
apt_list_push_back(state_machine->queue,message,message->pool);
response = mrcp_response_create(message,message->pool);
response->start_line.request_state = MRCP_REQUEST_STATE_PENDING;
return recog_response_dispatch(state_machine,response);
}
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Process RECOGNIZE Request [%d]",message->start_line.request_id);
return recog_request_dispatch(state_machine,message);
}
static apt_bool_t synth_request_speak(mrcp_synth_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_header_inherit(&message->header,&state_machine->properties,message->pool);
if(state_machine->speaker) {
mrcp_message_t *response;
apt_log(APT_PRIO_INFO,"Queue Up SPEAK Request [%d]",message->start_line.request_id);
message->start_line.request_state = MRCP_REQUEST_STATE_PENDING;
apt_list_push_back(state_machine->queue,message);
response = mrcp_response_create(message,message->pool);
response->start_line.request_state = MRCP_REQUEST_STATE_PENDING;
return synth_response_dispatch(state_machine,response);
}
apt_log(APT_PRIO_INFO,"Process SPEAK Request [%d]",message->start_line.request_id);
return synth_request_dispatch(state_machine,message);
}
/** Dispatch MRCP request */
static apt_bool_t demo_verifier_channel_request_dispatch(mrcp_engine_channel_t *channel, mrcp_message_t *request)
{
apt_bool_t processed = FALSE;
mrcp_message_t *response = mrcp_response_create(request,request->pool);
switch(request->start_line.method_id) {
case VERIFIER_SET_PARAMS:
break;
case VERIFIER_GET_PARAMS:
break;
case VERIFIER_START_SESSION:
break;
case VERIFIER_END_SESSION:
break;
case VERIFIER_QUERY_VOICEPRINT:
break;
case VERIFIER_DELETE_VOICEPRINT:
break;
case VERIFIER_VERIFY:
processed = demo_verifier_channel_verify(channel,request,response);
break;
case VERIFIER_VERIFY_FROM_BUFFER:
break;
case VERIFIER_VERIFY_ROLLBACK:
break;
case VERIFIER_STOP:
processed = demo_verifier_channel_stop(channel,request,response);
break;
case VERIFIER_CLEAR_BUFFER:
break;
case VERIFIER_START_INPUT_TIMERS:
processed = demo_verifier_channel_timers_start(channel,request,response);
break;
case VERIFIER_GET_INTERMIDIATE_RESULT:
processed = demo_verifier_channel_get_result(channel,request,response);
break;
default:
break;
}
if(processed == FALSE) {
/* send asynchronous response for not handled request */
mrcp_engine_channel_message_send(channel,response);
}
return TRUE;
}
static apt_bool_t recog_request_recognize(mrcp_recog_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_header_fields_inherit(&message->header,state_machine->properties,message->pool);
if(state_machine->state == RECOGNIZER_STATE_RECOGNIZING) {
mrcp_message_t *response;
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Queue Up RECOGNIZE Request "APT_SIDRES_FMT" [%"MRCP_REQUEST_ID_FMT"]",
MRCP_MESSAGE_SIDRES(message),
message->start_line.request_id);
message->start_line.request_state = MRCP_REQUEST_STATE_PENDING;
apt_list_push_back(state_machine->queue,message,message->pool);
response = mrcp_response_create(message,message->pool);
response->start_line.request_state = MRCP_REQUEST_STATE_PENDING;
return recog_response_dispatch(state_machine,response);
}
return recog_request_dispatch(state_machine,message);
}
static apt_bool_t mrcp_client_agent_messsage_send(mrcp_connection_agent_t *agent, mrcp_control_channel_t *channel, mrcp_message_t *message)
{
apt_bool_t status = FALSE;
mrcp_connection_t *connection = channel->connection;
if(connection && connection->sock) {
char buffer[MRCP_MESSAGE_MAX_SIZE];
apt_text_stream_t text_stream;
text_stream.text.buf = buffer;
text_stream.text.length = sizeof(buffer)-1;
text_stream.pos = text_stream.text.buf;
if(mrcp_message_generate(agent->resource_factory,message,&text_stream) == TRUE) {
*text_stream.pos = '\0';
apt_log(APT_PRIO_INFO,"Send MRCPv2 Message size=%lu\n%s",
text_stream.text.length,text_stream.text.buf);
if(apr_socket_send(connection->sock,text_stream.text.buf,&text_stream.text.length) == APR_SUCCESS) {
status = TRUE;
}
else {
apt_log(APT_PRIO_WARNING,"Failed to Send MRCPv2 Message");
}
}
else {
apt_log(APT_PRIO_WARNING,"Failed to Generate MRCPv2 Message");
}
}
else {
apt_log(APT_PRIO_WARNING,"No MRCPv2 Connection");
}
if(status == FALSE) {
mrcp_message_t *response = mrcp_response_create(message,message->pool);
response->start_line.method_id = message->start_line.method_id;
response->start_line.method_name = message->start_line.method_name;
response->start_line.status_code = MRCP_STATUS_CODE_METHOD_FAILED;
mrcp_connection_message_receive(agent->vtable,channel,response);
}
return TRUE;
}
/** Dispatch MRCP request */
static apt_bool_t demo_synth_channel_request_dispatch(mrcp_engine_channel_t *channel, mrcp_message_t *request)
{
apt_bool_t processed = FALSE;
mrcp_message_t *response = mrcp_response_create(request,request->pool);
switch(request->start_line.method_id) {
case SYNTHESIZER_SET_PARAMS:
processed = demo_synth_channel_set_params(channel,request,response);
break;
case SYNTHESIZER_GET_PARAMS:
processed = demo_synth_channel_get_params(channel,request,response);
break;
case SYNTHESIZER_SPEAK:
processed = demo_synth_channel_speak(channel,request,response);
break;
case SYNTHESIZER_STOP:
processed = demo_synth_channel_stop(channel,request,response);
break;
case SYNTHESIZER_PAUSE:
processed = demo_synth_channel_pause(channel,request,response);
break;
case SYNTHESIZER_RESUME:
processed = demo_synth_channel_resume(channel,request,response);
break;
case SYNTHESIZER_BARGE_IN_OCCURRED:
processed = demo_synth_channel_stop(channel,request,response);
break;
case SYNTHESIZER_CONTROL:
break;
case SYNTHESIZER_DEFINE_LEXICON:
break;
default:
break;
}
if(processed == FALSE) {
/* send asynchronous response for not handled request */
mrcp_engine_channel_message_send(channel,response);
}
return TRUE;
}
static apt_bool_t synth_request_barge_in_occurred(mrcp_synth_state_machine_t *state_machine, mrcp_message_t *message)
{
mrcp_message_t *response_message;
if(state_machine->speaker) {
apt_bool_t kill_on_barge_in = TRUE;
mrcp_synth_header_t *synth_header = mrcp_resource_header_get(message);
if(synth_header) {
if(mrcp_resource_header_property_check(message,SYNTHESIZER_HEADER_KILL_ON_BARGE_IN) == TRUE) {
kill_on_barge_in = synth_header->kill_on_barge_in;
}
}
if(kill_on_barge_in == TRUE) {
apt_log(APT_PRIO_INFO,"Process BARGE-IN Request [%d]",message->start_line.request_id);
return synth_request_dispatch(state_machine,message);
}
}
/* found no kill-on-bargein enabled in-progress SPEAK request, sending immediate response */
response_message = mrcp_response_create(message,message->pool);
return synth_response_dispatch(state_machine,response_message);
}
static apt_bool_t mrcp_server_agent_messsage_receive(mrcp_connection_agent_t *agent, mrcp_connection_t *connection)
{
char buffer[MRCP_MESSAGE_MAX_SIZE];
apt_bool_t more_messages_on_buffer = FALSE;
apr_status_t status;
apt_text_stream_t text_stream;
mrcp_message_t *message;
if(!connection || !connection->sock) {
return FALSE;
}
text_stream.text.buf = buffer;
text_stream.text.length = sizeof(buffer)-1;
status = apr_socket_recv(connection->sock, text_stream.text.buf, &text_stream.text.length);
if(status == APR_EOF || text_stream.text.length == 0) {
return mrcp_server_agent_connection_close(agent,connection);
}
text_stream.text.buf[text_stream.text.length] = '\0';
text_stream.pos = text_stream.text.buf;
apt_log(APT_PRIO_INFO,"Receive MRCPv2 Message size=%lu\n%s",text_stream.text.length,text_stream.text.buf);
do {
message = mrcp_message_create(connection->pool);
if(mrcp_message_parse(agent->resource_factory,message,&text_stream) == TRUE) {
mrcp_control_channel_t *channel = mrcp_connection_channel_associate(agent,connection,message);
if(channel) {
mrcp_connection_message_receive(agent->vtable,channel,message);
}
else {
apt_log(APT_PRIO_WARNING,"Failed to Find Channel <%s@%s>",
message->channel_id.session_id.buf,
message->channel_id.resource_name.buf);
}
}
else {
mrcp_message_t *response;
apt_log(APT_PRIO_WARNING,"Failed to Parse MRCPv2 Message");
if(message->start_line.version == MRCP_VERSION_2) {
/* assume that at least message length field is valid */
if(message->start_line.length <= text_stream.text.length) {
/* skip to the end of the message */
text_stream.pos = text_stream.text.buf + message->start_line.length;
}
else {
/* skip to the end of the buffer (support incomplete) */
text_stream.pos = text_stream.text.buf + text_stream.text.length;
}
}
response = mrcp_response_create(message,message->pool);
response->start_line.status_code = MRCP_STATUS_CODE_UNRECOGNIZED_MESSAGE;
if(mrcp_server_agent_messsage_send(agent,connection,response) == FALSE) {
apt_log(APT_PRIO_WARNING,"Failed to Send MRCPv2 Response");
}
}
more_messages_on_buffer = FALSE;
if(text_stream.text.length > (apr_size_t)(text_stream.pos - text_stream.text.buf)) {
/* there are more MRCPv2 messages to signal */
more_messages_on_buffer = TRUE;
text_stream.text.length -= text_stream.pos - text_stream.text.buf;
text_stream.text.buf = text_stream.pos;
apt_log(APT_PRIO_DEBUG,"Saving Remaining Buffer for Next Message");
}
}
while(more_messages_on_buffer);
return TRUE;
}