static apt_bool_t mrcp_server_session_offer_process(mrcp_server_session_t *session, mrcp_session_descriptor_t *descriptor)
{
if(!session->context) {
/* initial offer received, generate session id and add to session's table */
if(!session->base.id.length) {
apt_unique_id_generate(&session->base.id,MRCP_SESSION_ID_HEX_STRING_LENGTH,session->base.pool);
}
mrcp_server_session_add(session);
session->context = mpf_engine_context_create(session->profile->media_engine,session,5,session->base.pool);
}
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Receive Offer "APT_SID_FMT" [c:%d a:%d v:%d]",
MRCP_SESSION_SID(&session->base),
descriptor->control_media_arr->nelts,
descriptor->audio_media_arr->nelts,
descriptor->video_media_arr->nelts);
/* store received offer */
session->offer = descriptor;
session->answer = mrcp_session_answer_create(descriptor,session->base.pool);
mrcp_server_session_state_set(session,SESSION_STATE_GENERATING_ANSWER);
/* first, reset/destroy existing associations and topology */
if(mpf_engine_topology_message_add(
session->profile->media_engine,
MPF_RESET_ASSOCIATIONS,session->context,
&session->mpf_task_msg) == TRUE){
mrcp_server_session_subrequest_add(session);
}
if(mrcp_session_version_get(session) == MRCP_VERSION_1) {
if(mrcp_server_resource_offer_process(session,descriptor) == TRUE) {
mrcp_server_av_media_offer_process(session,descriptor);
}
else {
session->answer->resource_state = FALSE;
}
}
else {
mrcp_server_control_media_offer_process(session,descriptor);
mrcp_server_av_media_offer_process(session,descriptor);
}
/* apply topology based on assigned associations */
if(mpf_engine_topology_message_add(
session->profile->media_engine,
MPF_APPLY_TOPOLOGY,session->context,
&session->mpf_task_msg) == TRUE) {
mrcp_server_session_subrequest_add(session);
}
mpf_engine_message_send(session->profile->media_engine,&session->mpf_task_msg);
if(!session->subrequest_count) {
/* send answer to client */
mrcp_server_session_answer_send(session);
}
return TRUE;
}
/** Process MPF event */
static apt_bool_t mpf_suite_event_process(mpf_suite_agent_t *agent, const mpf_message_t *mpf_message)
{
mpf_task_msg_t *task_msg = NULL;
mpf_suite_session_t *session;
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Process MPF Event");
if(mpf_message->termination) {
session = mpf_termination_object_get(mpf_message->termination);
/* first destroy existing topology */
mpf_engine_topology_message_add(
agent->engine,
MPF_DESTROY_TOPOLOGY,session->context,
&task_msg);
if(session->file_termination) {
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Subtract Termination [File]");
mpf_engine_termination_message_add(
agent->engine,
MPF_SUBTRACT_TERMINATION,session->context,session->file_termination,NULL,
&task_msg);
}
if(session->rtp_termination) {
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Subtract Termination [RTP]");
mpf_engine_termination_message_add(
agent->engine,
MPF_SUBTRACT_TERMINATION,session->context,session->rtp_termination,NULL,
&task_msg);
}
}
return mpf_engine_message_send(agent->engine,&task_msg);
}
/** Process MPF response */
static apt_bool_t mpf_suite_response_process(mpf_suite_agent_t *agent, const mpf_message_t *mpf_message)
{
mpf_task_msg_t *task_msg = NULL;
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Process MPF Response");
if(mpf_message->command_id == MPF_ADD_TERMINATION) {
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"On Add Termination");
if(mpf_message->termination) {
mpf_suite_session_t *session;
session = mpf_termination_object_get(mpf_message->termination);
if(session->rtp_termination == mpf_message->termination) {
mpf_rtp_stream_descriptor_t *descriptor = NULL;
if(session == agent->rx_session) {
descriptor = mpf_rtp_rx_remote_descriptor_create(agent,session);
}
if(session == agent->tx_session) {
descriptor = mpf_rtp_tx_remote_descriptor_create(agent,session);
}
if(descriptor) {
mpf_engine_termination_message_add(
agent->engine,
MPF_MODIFY_TERMINATION,session->context,session->rtp_termination,descriptor,
&task_msg);
}
mpf_engine_assoc_message_add(
agent->engine,
MPF_ADD_ASSOCIATION,session->context,session->file_termination,session->rtp_termination,
&task_msg);
mpf_engine_topology_message_add(
agent->engine,
MPF_APPLY_TOPOLOGY,session->context,
&task_msg);
}
}
}
else if(mpf_message->command_id == MPF_SUBTRACT_TERMINATION) {
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"On Subtract Termination");
if(mpf_message->termination) {
mpf_suite_session_t *session;
session = mpf_termination_object_get(mpf_message->termination);
if(session->file_termination == mpf_message->termination) {
session->file_termination = NULL;
}
else if(session->rtp_termination == mpf_message->termination) {
session->rtp_termination = NULL;
}
mpf_termination_destroy(mpf_message->termination);
if(!session->file_termination && !session->rtp_termination) {
mpf_suite_session_destroy(agent,session);
}
}
}
return mpf_engine_message_send(agent->engine,&task_msg);
}
static apt_bool_t mrcp_server_session_terminate_process(mrcp_server_session_t *session)
{
mrcp_channel_t *channel;
mrcp_termination_slot_t *slot;
int i;
apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Receive Terminate Request "APT_SID_FMT,MRCP_SESSION_SID(&session->base));
mrcp_server_session_state_set(session,SESSION_STATE_TERMINATING);
if(session->context) {
/* first, destroy existing topology */
if(mpf_engine_topology_message_add(
session->profile->media_engine,
MPF_RESET_ASSOCIATIONS,session->context,
&session->mpf_task_msg) == TRUE){
mrcp_server_session_subrequest_add(session);
}
}
for(i=0; i<session->channels->nelts; i++) {
channel = APR_ARRAY_IDX(session->channels,i,mrcp_channel_t*);
if(!channel) continue;
/* send remove channel request */
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Remove Control Channel [%d]",i);
if(channel->control_channel) {
if(mrcp_server_control_channel_remove(channel->control_channel) == TRUE) {
channel->waiting_for_channel = TRUE;
mrcp_server_session_subrequest_add(session);
}
}
if(channel->engine_channel) {
mpf_termination_t *termination = channel->engine_channel->termination;
/* send subtract termination request */
if(termination) {
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Subtract Channel Termination");
if(mpf_engine_termination_message_add(
session->profile->media_engine,
MPF_SUBTRACT_TERMINATION,session->context,termination,NULL,
&session->mpf_task_msg) == TRUE) {
channel->waiting_for_termination = TRUE;
mrcp_server_session_subrequest_add(session);
}
}
/* close engine channel */
if(mrcp_engine_channel_virtual_close(channel->engine_channel) == TRUE) {
mrcp_server_session_subrequest_add(session);
}
}
}
for(i=0; i<session->terminations->nelts; i++) {
/* get existing termination */
slot = &APR_ARRAY_IDX(session->terminations,i,mrcp_termination_slot_t);
if(!slot || !slot->termination) continue;
/* send subtract termination request */
apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Subtract RTP Termination [%d]",i);
if(mpf_engine_termination_message_add(
session->profile->media_engine,
MPF_SUBTRACT_TERMINATION,session->context,slot->termination,NULL,
&session->mpf_task_msg) == TRUE) {
slot->waiting = TRUE;
mrcp_server_session_subrequest_add(session);
}
}
if(session->context) {
mpf_engine_message_send(session->profile->media_engine,&session->mpf_task_msg);
}
mrcp_server_session_remove(session);
if(!session->subrequest_count) {
mrcp_server_session_terminate_send(session);
}
return TRUE;
}
static apt_bool_t mrcp_client_session_terminate(mrcp_client_session_t *session)
{
mrcp_profile_t *profile;
mrcp_channel_t *channel;
rtp_termination_slot_t *slot;
int i;
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Terminate Session "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
profile = session->profile;
mrcp_client_session_state_set(session,SESSION_STATE_TERMINATING);
if(session->context) {
/* first destroy existing topology */
if(mpf_engine_topology_message_add(
session->profile->media_engine,
MPF_DESTROY_TOPOLOGY,session->context,
&session->mpf_task_msg) == TRUE){
mrcp_client_session_subrequest_add(session);
}
}
/* remove existing control channels */
for(i=0; i<session->channels->nelts; i++) {
/* get existing channel */
channel = APR_ARRAY_IDX(session->channels,i,mrcp_channel_t*);
if(!channel) continue;
if(channel->control_channel) {
/* remove channel */
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Remove Control Channel "APT_NAMESID_FMT,
MRCP_SESSION_NAMESID(session));
if(mrcp_client_control_channel_remove(channel->control_channel) == TRUE) {
channel->waiting_for_channel = TRUE;
mrcp_client_session_subrequest_add(session);
}
}
/* send subtract termination request */
if(channel->termination) {
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Subtract Media Termination "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
mpf_termination_name_get(channel->termination));
if(mpf_engine_termination_message_add(
profile->media_engine,
MPF_SUBTRACT_TERMINATION,session->context,channel->termination,NULL,
&session->mpf_task_msg) == TRUE) {
channel->waiting_for_termination = TRUE;
mrcp_client_session_subrequest_add(session);
}
}
}
if(session->context) {
/* subtract existing terminations */
for(i=0; i<session->terminations->nelts; i++) {
/* get existing termination */
slot = &APR_ARRAY_IDX(session->terminations,i,rtp_termination_slot_t);
if(!slot || !slot->termination) continue;
/* send subtract termination request */
apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Subtract Media Termination "APT_NAMESIDRES_FMT,
MRCP_SESSION_NAMESID(session),
mpf_termination_name_get(slot->termination));
if(mpf_engine_termination_message_add(
profile->media_engine,
MPF_SUBTRACT_TERMINATION,session->context,slot->termination,NULL,
&session->mpf_task_msg) == TRUE) {
slot->waiting = TRUE;
mrcp_client_session_subrequest_add(session);
}
}
mpf_engine_message_send(profile->media_engine,&session->mpf_task_msg);
}
mrcp_client_session_subrequest_add(session);
mrcp_session_terminate_request(&session->base);
return TRUE;
}
apt_bool_t mrcp_client_session_answer_process(mrcp_client_session_t *session, mrcp_session_descriptor_t *descriptor)
{
if(!session->offer) {
return FALSE;
}
if(!descriptor) {
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Receive Answer "APT_NAMESID_FMT" [null descriptor]",
MRCP_SESSION_NAMESID(session));
session->status = MRCP_SIG_STATUS_CODE_FAILURE;
/* raise app response */
return mrcp_app_sig_response_raise(session,TRUE);
}
apt_obj_log(APT_LOG_MARK,APT_PRIO_INFO,session->base.log_obj,"Receive Answer "APT_NAMESID_FMT" [c:%d a:%d v:%d] Status %d",
MRCP_SESSION_NAMESID(session),
descriptor->control_media_arr->nelts,
descriptor->audio_media_arr->nelts,
descriptor->video_media_arr->nelts,
descriptor->response_code);
if(descriptor->response_code >=200 && descriptor->response_code < 300) {
mrcp_client_session_state_set(session,SESSION_STATE_PROCESSING_ANSWER);
if(session->context) {
/* first, reset/destroy existing associations and topology */
if(mpf_engine_topology_message_add(
session->profile->media_engine,
MPF_RESET_ASSOCIATIONS,session->context,
&session->mpf_task_msg) == TRUE){
mrcp_client_session_subrequest_add(session);
}
}
if(mrcp_session_version_get(session) == MRCP_VERSION_1) {
if(mrcp_client_resource_answer_process(session,descriptor) != TRUE) {
session->status = MRCP_SIG_STATUS_CODE_FAILURE;
}
}
else {
mrcp_client_control_media_answer_process(session,descriptor);
mrcp_client_av_media_answer_process(session,descriptor);
}
if(session->context) {
/* apply topology based on assigned associations */
if(mpf_engine_topology_message_add(
session->profile->media_engine,
MPF_APPLY_TOPOLOGY,session->context,
&session->mpf_task_msg) == TRUE) {
mrcp_client_session_subrequest_add(session);
}
mpf_engine_message_send(session->profile->media_engine,&session->mpf_task_msg);
}
}
else {
session->status = MRCP_SIG_STATUS_CODE_TERMINATE;
}
/* store received answer */
session->answer = descriptor;
if(!session->subrequest_count) {
/* raise app response */
mrcp_app_sig_response_raise(session,TRUE);
}
return TRUE;
}
