static apt_bool_t mrcp_app_control_message_raise(mrcp_client_session_t *session, mrcp_channel_t *channel, mrcp_message_t *mrcp_message)
{
if(mrcp_message->start_line.message_type == MRCP_MESSAGE_TYPE_RESPONSE) {
mrcp_app_message_t *response;
mrcp_message_t *mrcp_request;
if(!session->active_request || !session->active_request->control_message) {
return FALSE;
}
response = mrcp_client_app_response_create(session->active_request,0,session->base.pool);
mrcp_request = session->active_request->control_message;
mrcp_message->start_line.method_id = mrcp_request->start_line.method_id;
mrcp_message->start_line.method_name = mrcp_request->start_line.method_name;
response->control_message = mrcp_message;
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);
session->active_request = apt_list_pop_front(session->request_queue);
if(session->active_request) {
mrcp_app_request_dispatch(session,session->active_request);
}
}
else if(mrcp_message->start_line.message_type == MRCP_MESSAGE_TYPE_EVENT) {
mrcp_app_message_t *app_message;
app_message = mrcp_client_app_control_message_create(session->base.pool);
app_message->control_message = mrcp_message;
app_message->application = session->application;
app_message->session = &session->base;
app_message->channel = channel;
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Raise App MRCP Event "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
session->application->handler(app_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_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_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 mrcp_channel_t* mrcp_server_channel_create(mrcp_server_session_t *session, const apt_str_t *resource_name, apr_size_t id, apr_array_header_t *cmid_arr)
{
mrcp_channel_t *channel;
apr_pool_t *pool = session->base.pool;
channel = apr_palloc(pool,sizeof(mrcp_channel_t));
channel->pool = pool;
channel->session = &session->base;
channel->resource = NULL;
channel->control_channel = NULL;
channel->state_machine = NULL;
channel->engine_channel = NULL;
channel->id = id;
channel->cmid_arr = cmid_arr;
channel->waiting_for_channel = FALSE;
channel->waiting_for_termination = FALSE;
if(resource_name && resource_name->buf) {
mrcp_resource_t *resource;
mrcp_engine_channel_t *engine_channel;
resource = mrcp_resource_find(session->profile->resource_factory,resource_name);
if(resource) {
channel->resource = resource;
if(mrcp_session_version_get(session) == MRCP_VERSION_2) {
channel->control_channel = mrcp_server_control_channel_create(
session->profile->connection_agent,
channel,
pool);
}
engine_channel = mrcp_server_engine_channel_create(session,channel,resource_name);
if(engine_channel) {
engine_channel->id = session->base.id;
engine_channel->event_obj = channel;
engine_channel->event_vtable = &engine_channel_vtable;
channel->engine_channel = engine_channel;
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Create Engine Channel "APT_NAMESID_FMT" [%s]",
MRCP_SESSION_NAMESID(session),
resource_name->buf);
session->answer->status = MRCP_SESSION_STATUS_UNACCEPTABLE_RESOURCE;
}
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"No Such Resource "APT_NAMESID_FMT" [%s]",
MRCP_SESSION_NAMESID(session),
resource_name->buf);
session->answer->status = MRCP_SESSION_STATUS_NO_SUCH_RESOURCE;
}
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Invalid Resource Identifier "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
session->answer->status = MRCP_SESSION_STATUS_NO_SUCH_RESOURCE;
}
return channel;
}
static apt_bool_t mrcp_client_on_termination_subtract(mrcp_client_session_t *session, const mpf_message_t *mpf_message)
{
rtp_termination_slot_t *termination_slot;
if(!session) {
return FALSE;
}
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Media Termination Subtracted "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
mpf_termination_name_get(mpf_message->termination));
termination_slot = mrcp_client_rtp_termination_find(session,mpf_message->termination);
if(termination_slot) {
/* rtp termination */
if(termination_slot->waiting == FALSE) {
return FALSE;
}
termination_slot->waiting = FALSE;
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
mrcp_app_session_terminate_raise(session,MRCP_SIG_STATUS_CODE_SUCCESS);
}
}
else {
/* channel termination */
mrcp_channel_t *channel = mrcp_client_channel_termination_find(session,mpf_message->termination);
if(channel && channel->waiting_for_termination == TRUE) {
channel->waiting_for_termination = FALSE;
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
/* raise app response */
mrcp_app_sig_response_raise(session,TRUE);
}
}
}
return TRUE;
}
static mrcp_engine_channel_t* mrcp_server_engine_channel_create(
mrcp_server_session_t *session,
mrcp_channel_t *channel,
const apt_str_t *resource_name)
{
mrcp_engine_t *engine = apr_hash_get(
session->profile->engine_table,
resource_name->buf,
resource_name->length);
if(!engine) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Find MRCP Engine "APT_NAMESID_FMT" [%s]",
MRCP_SESSION_NAMESID(session),
resource_name->buf);
return NULL;
}
channel->state_machine = engine->create_state_machine(
channel,
mrcp_session_version_get(session),
channel->pool);
if(channel->state_machine) {
channel->state_machine->on_dispatch = state_machine_on_message_dispatch;
channel->state_machine->on_deactivate = state_machine_on_deactivate;
}
return mrcp_engine_channel_virtual_create(engine,mrcp_session_version_get(session),session->base.pool);
}
mrcp_channel_t* mrcp_client_channel_create(
mrcp_client_session_t *session,
mrcp_resource_t *resource,
mpf_termination_t *termination,
mpf_rtp_termination_descriptor_t *rtp_descriptor,
void *obj)
{
mrcp_channel_t *channel = apr_palloc(session->base.pool,sizeof(mrcp_channel_t));
channel->pool = session->base.pool;
channel->obj = obj;
channel->session = &session->base;
channel->control_channel = NULL;
channel->termination = termination;
channel->rtp_termination_slot = NULL;
channel->resource = resource;
channel->waiting_for_channel = FALSE;
channel->waiting_for_termination = FALSE;
if(rtp_descriptor) {
rtp_termination_slot_t *termination_slot = apr_palloc(channel->pool,sizeof(rtp_termination_slot_t));
termination_slot->descriptor = rtp_descriptor;
termination_slot->termination = NULL;
termination_slot->waiting = FALSE;
termination_slot->channel = channel;
termination_slot->id = 0;
channel->rtp_termination_slot = termination_slot;
}
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Create Channel "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
return channel;
}
static apt_bool_t mrcp_app_sig_response_raise(mrcp_client_session_t *session, apt_bool_t process_pending_requests)
{
mrcp_app_message_t *response;
const mrcp_app_message_t *request = session->active_request;
if(!request) {
return FALSE;
}
session->active_request = NULL;
if(session->disconnected == TRUE) {
session->status = MRCP_SIG_STATUS_CODE_TERMINATE;
}
response = mrcp_client_app_response_create(request,session->status,session->base.pool);
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);
session->application->handler(response);
if(process_pending_requests) {
session->active_request = apt_list_pop_front(session->request_queue);
if(session->active_request) {
mrcp_app_request_dispatch(session,session->active_request);
}
}
return TRUE;
}
static apt_bool_t mrcp_server_resource_offer_process(mrcp_server_session_t *session, mrcp_session_descriptor_t *descriptor)
{
if(descriptor->resource_state == TRUE) {
/* setup */
mrcp_channel_t *channel;
int count = session->channels->nelts;
channel = mrcp_server_channel_find(session,&descriptor->resource_name);
if(channel) {
/* channel already exists */
return TRUE;
}
/* create new MRCP channel instance */
channel = mrcp_server_channel_create(session,&descriptor->resource_name,count,NULL);
if(!channel || !channel->resource) {
return FALSE;
}
/* add to channel array */
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Add Control Channel "APT_NAMESIDRES_FMT" [%d]",
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf,
count);
APR_ARRAY_PUSH(session->channels,mrcp_channel_t*) = channel;
if(channel->engine_channel && channel->engine_channel->termination) {
mpf_termination_t *termination = channel->engine_channel->termination;
/* send add termination request (add to media context) */
if(mpf_engine_termination_message_add(
session->profile->media_engine,
MPF_ADD_TERMINATION,session->context,termination,NULL,
&session->mpf_task_msg) == TRUE) {
channel->waiting_for_termination = TRUE;
mrcp_server_session_subrequest_add(session);
}
}
}
static apt_bool_t mrcp_client_on_termination_modify(mrcp_client_session_t *session, const mpf_message_t *mpf_message)
{
rtp_termination_slot_t *termination_slot;
if(!session) {
return FALSE;
}
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Media Termination Modified "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
mpf_termination_name_get(mpf_message->termination));
termination_slot = mrcp_client_rtp_termination_find(session,mpf_message->termination);
if(termination_slot) {
/* rtp termination */
if(termination_slot->waiting == FALSE) {
return FALSE;
}
termination_slot->waiting = FALSE;
termination_slot->descriptor = mpf_message->descriptor;;
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
if(session->state == SESSION_STATE_GENERATING_OFFER) {
/* send offer to server */
mrcp_client_session_offer_send(session);
}
else if(session->state == SESSION_STATE_PROCESSING_ANSWER) {
/* raise app response */
mrcp_app_sig_response_raise(session,TRUE);
}
}
}
return TRUE;
}
apt_bool_t mrcp_server_on_engine_channel_close(mrcp_channel_t *channel)
{
mrcp_server_session_t *session = (mrcp_server_session_t*)channel->session;
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Engine Channel Closed "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf);
mrcp_server_session_subrequest_remove(session);
return TRUE;
}
static apt_bool_t mrcp_client_session_update(mrcp_client_session_t *session)
{
if(!session->offer) {
return FALSE;
}
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Update Session "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
return mrcp_client_session_offer_send(session);
}
apt_bool_t mrcp_client_mpf_message_process(mpf_message_container_t *mpf_message_container)
{
apr_size_t i;
mrcp_client_session_t *session;
const mpf_message_t *mpf_message;
for(i=0; i<mpf_message_container->count; i++) {
mpf_message = &mpf_message_container->messages[i];
if(mpf_message->context) {
session = mpf_engine_context_object_get(mpf_message->context);
}
else {
session = NULL;
}
if(!session) {
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Received MPF Message: NULL session");
continue;
}
if(mpf_message->message_type == MPF_MESSAGE_TYPE_RESPONSE) {
switch(mpf_message->command_id) {
case MPF_ADD_TERMINATION:
mrcp_client_on_termination_add(session,mpf_message);
break;
case MPF_MODIFY_TERMINATION:
mrcp_client_on_termination_modify(session,mpf_message);
break;
case MPF_SUBTRACT_TERMINATION:
mrcp_client_on_termination_subtract(session,mpf_message);
break;
case MPF_ADD_ASSOCIATION:
case MPF_REMOVE_ASSOCIATION:
case MPF_RESET_ASSOCIATIONS:
case MPF_APPLY_TOPOLOGY:
case MPF_DESTROY_TOPOLOGY:
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
if(session->state == SESSION_STATE_GENERATING_OFFER) {
/* send offer to server */
mrcp_client_session_offer_send(session);
}
else if(session->state == SESSION_STATE_PROCESSING_ANSWER) {
/* raise app response */
mrcp_app_sig_response_raise(session,TRUE);
}
}
break;
default:
break;
}
}
else if(mpf_message->message_type == MPF_MESSAGE_TYPE_EVENT) {
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Process MPF Event " APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
}
}
return TRUE;
}
apt_bool_t mrcp_client_session_terminate_event_process(mrcp_client_session_t *session)
{
if(session->state == SESSION_STATE_TERMINATING) {
/* session termination request has been sent, still waiting for the response,
all the events must be ignored at this stage */
apt_obj_log(APT_LOG_MARK,APT_PRIO_WARNING,session->base.log_obj,"Unexpected Event! " APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
return FALSE;
}
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Mark Session as Disconnected " APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
session->disconnected = TRUE;
if(!session->active_request) {
/* raise app event */
mrcp_app_sig_event_raise(session,NULL);
}
return TRUE;
}
static apt_bool_t mrcp_client_av_media_answer_process(mrcp_client_session_t *session, mrcp_session_descriptor_t *descriptor)
{
rtp_termination_slot_t *slot;
int i;
int count = session->terminations->nelts;
if(count != descriptor->audio_media_arr->nelts) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Number of terminations [%d] != Number of audio media in answer [%d]",
count,descriptor->audio_media_arr->nelts);
count = descriptor->audio_media_arr->nelts;
}
/* update existing terminations */
for(i=0; i<count; i++) {
mpf_rtp_media_descriptor_t *remote_media;
mpf_rtp_termination_descriptor_t *rtp_descriptor;
/* get existing termination */
slot = &APR_ARRAY_IDX(session->terminations,i,rtp_termination_slot_t);
if(!slot) continue;
remote_media = mrcp_session_audio_media_get(descriptor,i);
if(slot->descriptor) {
slot->descriptor->audio.remote = remote_media;
}
if(slot->termination) {
/* construct termination descriptor */
rtp_descriptor = apr_palloc(session->base.pool,sizeof(mpf_rtp_termination_descriptor_t));
mpf_rtp_termination_descriptor_init(rtp_descriptor);
rtp_descriptor->audio.local = NULL;
rtp_descriptor->audio.remote = remote_media;
/* send modify termination request */
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Modify Media Termination "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
mpf_termination_name_get(slot->termination));
if(mpf_engine_termination_message_add(
session->profile->media_engine,
MPF_MODIFY_TERMINATION,session->context,slot->termination,rtp_descriptor,
&session->mpf_task_msg) == TRUE) {
slot->waiting = TRUE;
mrcp_client_session_subrequest_add(session);
}
if(slot->channel && slot->channel->termination) {
if(mpf_engine_assoc_message_add(
session->profile->media_engine,
MPF_ADD_ASSOCIATION,session->context,slot->termination,slot->channel->termination,
&session->mpf_task_msg) == TRUE) {
mrcp_client_session_subrequest_add(session);
}
}
}
}
return TRUE;
}
static apt_bool_t mrcp_client_session_offer_send(mrcp_client_session_t *session)
{
mrcp_session_descriptor_t *descriptor = session->offer;
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Send Offer "APT_NAMESID_FMT" [c:%d a:%d v:%d] to %s:%hu",
MRCP_SESSION_NAMESID(session),
descriptor->control_media_arr->nelts,
descriptor->audio_media_arr->nelts,
descriptor->video_media_arr->nelts,
session->profile->signaling_settings->server_ip,
session->profile->signaling_settings->server_port);
return mrcp_session_offer(&session->base,descriptor);
}
static APR_INLINE void mrcp_client_session_state_set(mrcp_client_session_t *session, mrcp_client_session_state_e state)
{
if(session->subrequest_count != 0) {
/* error case */
apt_obj_log(APT_LOG_MARK,APT_PRIO_ERROR,session->base.log_obj,"Unexpected State Change [%d] pending subrequests [%d] " APT_NAMESID_FMT,
state,
session->subrequest_count,
MRCP_SESSION_NAMESID(session));
session->subrequest_count = 0;
}
session->state = state;
}
static apt_bool_t mrcp_server_on_message_receive(mrcp_server_session_t *session, mrcp_channel_t *channel, mrcp_message_t *message)
{
if(!channel) {
channel = mrcp_server_channel_find(session,&message->channel_id.resource_name);
if(!channel) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"No Such Channel "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
message->channel_id.resource_name.buf);
return FALSE;
}
}
if(!channel->resource || !channel->state_machine) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Missing Resource "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf);
return FALSE;
}
/* update state machine */
return mrcp_state_machine_update(channel->state_machine,message);
}
apt_bool_t mrcp_server_on_channel_remove(mrcp_channel_t *channel, apt_bool_t status)
{
mrcp_server_session_t *session = (mrcp_server_session_t*)channel->session;
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Control Channel Removed "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf);
if(!channel->waiting_for_channel) {
return FALSE;
}
channel->waiting_for_channel = FALSE;
mrcp_server_session_subrequest_remove(session);
return TRUE;
}
apt_bool_t mrcp_server_on_engine_channel_open(mrcp_channel_t *channel, apt_bool_t status)
{
mrcp_server_session_t *session = (mrcp_server_session_t*)channel->session;
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Engine Channel Opened "APT_NAMESIDRES_FMT" [%s]",
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf,
status == TRUE ? "OK" : "Failed");
if(status == FALSE) {
session->answer->status = MRCP_SESSION_STATUS_UNAVAILABLE_RESOURCE;
}
mrcp_server_session_subrequest_remove(session);
return TRUE;
}
apt_bool_t mrcp_server_signaling_message_process(mrcp_signaling_message_t *signaling_message)
{
mrcp_server_session_t *session = signaling_message->session;
if(session->active_request) {
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Push Request to Queue "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
apt_list_push_back(session->request_queue,signaling_message,session->base.pool);
}
else {
session->active_request = signaling_message;
mrcp_server_signaling_message_dispatch(session,signaling_message);
}
return TRUE;
}
apt_bool_t mrcp_client_app_message_process(mrcp_app_message_t *app_message)
{
mrcp_client_session_t *session = (mrcp_client_session_t*)app_message->session;
if(app_message->message_type == MRCP_APP_MESSAGE_TYPE_SIGNALING) {
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Receive App Request "APT_NAMESID_FMT" [%d]",
MRCP_SESSION_NAMESID(session),
app_message->sig_message.command_id);
}
else {
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Receive App MRCP Request "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
}
if(session->active_request) {
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Push Request to Queue "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
apt_list_push_back(session->request_queue,app_message,session->base.pool);
return TRUE;
}
session->active_request = app_message;
mrcp_app_request_dispatch(session,app_message);
return TRUE;
}
static apt_bool_t mrcp_app_sig_event_raise(mrcp_client_session_t *session, mrcp_channel_t *channel)
{
mrcp_app_message_t *app_event;
if(!session) {
return FALSE;
}
app_event = mrcp_client_app_signaling_event_create(MRCP_SIG_EVENT_TERMINATE,session->base.pool);
app_event->application = session->application;
app_event->session = &session->base;
app_event->channel = channel;
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Raise App Event "APT_NAMESID_FMT" [%d]",
MRCP_SESSION_NAMESID(session),
app_event->sig_message.event_id);
return session->application->handler(app_event);
}
apt_bool_t mrcp_client_on_channel_add(mrcp_channel_t *channel, mrcp_control_descriptor_t *descriptor, apt_bool_t status)
{
mrcp_client_session_t *session = (mrcp_client_session_t*)channel->session;
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Control Channel Added "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf);
if(!channel->waiting_for_channel) {
return FALSE;
}
channel->waiting_for_channel = FALSE;
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
/* send offer to server */
mrcp_client_session_offer_send(session);
}
return TRUE;
}
apt_bool_t mrcp_client_on_channel_remove(mrcp_channel_t *channel, apt_bool_t status)
{
mrcp_client_session_t *session = (mrcp_client_session_t*)channel->session;
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Control Channel Removed "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf);
if(!channel->waiting_for_channel) {
return FALSE;
}
channel->waiting_for_channel = FALSE;
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
mrcp_app_session_terminate_raise(
session,
status == TRUE ? MRCP_SIG_STATUS_CODE_SUCCESS : MRCP_SIG_STATUS_CODE_FAILURE);
}
return TRUE;
}
apt_bool_t mrcp_server_on_channel_modify(mrcp_channel_t *channel, mrcp_control_descriptor_t *answer, apt_bool_t status)
{
mrcp_server_session_t *session = (mrcp_server_session_t*)channel->session;
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Control Channel Modified "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf);
if(!answer) {
return FALSE;
}
if(!channel->waiting_for_channel) {
return FALSE;
}
channel->waiting_for_channel = FALSE;
answer->session_id = session->base.id;
mrcp_session_control_media_set(session->answer,channel->id,answer);
mrcp_server_session_subrequest_remove(session);
return TRUE;
}
apt_bool_t mrcp_client_session_terminate_event_process(mrcp_client_session_t *session)
{
if(session->state == SESSION_STATE_TERMINATING) {
/* session termination request has been sent, still waiting for the response,
all the events must be ignored at this stage */
apt_obj_log(APT_LOG_MARK,APT_PRIO_WARNING,session->base.log_obj,"Unexpected Event! "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
return FALSE;
}
if(session->active_request) {
apt_bool_t process_pending_requests = TRUE;
/* raise app response */
session->status = MRCP_SIG_STATUS_CODE_TERMINATE;
mrcp_app_failure_message_raise(session);
/* cancel remaing requests, but do process session termination request (if any) */
do {
session->active_request = apt_list_pop_front(session->request_queue);
if(session->active_request) {
const mrcp_app_message_t *app_message = session->active_request;
if(app_message->message_type == MRCP_APP_MESSAGE_TYPE_SIGNALING &&
app_message->sig_message.command_id == MRCP_SIG_COMMAND_SESSION_TERMINATE) {
/* process session termination */
mrcp_app_request_dispatch(session,app_message);
break;
}
/* cancel pending request */
session->status = MRCP_SIG_STATUS_CODE_CANCEL;
mrcp_app_failure_message_raise(session);
}
else {
process_pending_requests = FALSE;
}
}
while(process_pending_requests == TRUE);
}
else {
/* raise app event */
mrcp_app_sig_event_raise(session,NULL);
}
return TRUE;
}
static apt_bool_t mrcp_client_on_termination_add(mrcp_client_session_t *session, const mpf_message_t *mpf_message)
{
rtp_termination_slot_t *termination_slot;
if(!session) {
return FALSE;
}
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Media Termination Added "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
mpf_termination_name_get(mpf_message->termination));
termination_slot = mrcp_client_rtp_termination_find(session,mpf_message->termination);
if(termination_slot) {
/* rtp termination */
mpf_rtp_termination_descriptor_t *rtp_descriptor;
if(termination_slot->waiting == FALSE) {
return FALSE;
}
termination_slot->waiting = FALSE;
rtp_descriptor = mpf_message->descriptor;
if(rtp_descriptor->audio.local) {
session->offer->ip = rtp_descriptor->audio.local->ip;
session->offer->ext_ip = rtp_descriptor->audio.local->ext_ip;
rtp_descriptor->audio.local->id = mrcp_session_audio_media_add(session->offer,rtp_descriptor->audio.local);
rtp_descriptor->audio.local->mid = session->offer->audio_media_arr->nelts;
termination_slot->id = session->offer->audio_media_arr->nelts - 1;
}
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
/* send offer to server */
mrcp_client_session_offer_send(session);
}
}
else {
/* channel termination */
mrcp_channel_t *channel = mrcp_client_channel_termination_find(session,mpf_message->termination);
if(channel && channel->waiting_for_termination == TRUE) {
channel->waiting_for_termination = FALSE;
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
/* send offer to server */
mrcp_client_session_offer_send(session);
}
}
}
return TRUE;
}
apt_bool_t mrcp_client_on_channel_modify(mrcp_channel_t *channel, mrcp_control_descriptor_t *descriptor, apt_bool_t status)
{
mrcp_client_session_t *session = (mrcp_client_session_t*)channel->session;
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Control Channel Modified "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf);
if(!channel->waiting_for_channel) {
return FALSE;
}
channel->waiting_for_channel = FALSE;
if(mrcp_client_session_subrequest_remove(session) == TRUE) {
/* raise app response */
if(status != TRUE) {
session->status = MRCP_SIG_STATUS_CODE_FAILURE;
}
mrcp_app_sig_response_raise(session,TRUE);
}
return TRUE;
}
static apt_bool_t mrcp_client_channel_modify(mrcp_client_session_t *session, mrcp_channel_t *channel, apt_bool_t enable)
{
int index;
if(!session->offer) {
return FALSE;
}
if(!channel->resource) {
return FALSE;
}
apt_obj_log(APT_LOG_MARK,APT_PRIO_NOTICE,session->base.log_obj,"Modify Control Channel "APT_NAMESIDRES_FMT" [%d]",
MRCP_SESSION_NAMESID(session),
channel->resource->name.buf,
enable);
if(mrcp_client_channel_find(session,channel,&index) == TRUE) {
mrcp_control_descriptor_t *control_media = mrcp_session_control_media_get(session->offer,(apr_size_t)index);
if(control_media) {
control_media->port = (enable == TRUE) ? TCP_DISCARD_PORT : 0;
}
if(channel->termination && channel->rtp_termination_slot) {
mpf_audio_stream_t *audio_stream = mpf_termination_audio_stream_get(
channel->termination);
mpf_rtp_media_descriptor_t *audio_media = mrcp_session_audio_media_get(
session->offer,
channel->rtp_termination_slot->id);
if(audio_media && audio_stream) {
mpf_stream_direction_e direction = mpf_stream_reverse_direction_get(audio_stream->direction);
if(enable == TRUE) {
audio_media->direction |= direction;
}
else {
audio_media->direction &= ~direction;
}
audio_media->state = (audio_media->direction != STREAM_DIRECTION_NONE) ? MPF_MEDIA_ENABLED : MPF_MEDIA_DISABLED;
}
}
}
session->offer->resource_name = channel->resource->name;
session->offer->resource_state = enable;
return mrcp_client_session_offer_send(session);
}
