/** Generate MRCP control media by SDP media */ static apt_bool_t mrcp_control_media_generate(mrcp_control_descriptor_t *control_media, const sdp_media_t *sdp_media, const apt_str_t *ip, apr_pool_t *pool) { mrcp_attrib_e id; apt_str_t name; apt_str_t value; sdp_attribute_t *attrib = NULL; apt_string_set(&name,sdp_media->m_proto_name); control_media->proto = mrcp_proto_find(&name); if(control_media->proto != MRCP_PROTO_TCP) { apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Not supported SDP Proto [%s], expected [%s]",sdp_media->m_proto_name,mrcp_proto_get(MRCP_PROTO_TCP)->buf); return FALSE; } for(attrib = sdp_media->m_attributes; attrib; attrib=attrib->a_next) { apt_string_set(&name,attrib->a_name); id = mrcp_attrib_id_find(&name); switch(id) { case MRCP_ATTRIB_SETUP: apt_string_set(&value,attrib->a_value); control_media->setup_type = mrcp_setup_type_find(&value); break; case MRCP_ATTRIB_CONNECTION: apt_string_set(&value,attrib->a_value); control_media->connection_type = mrcp_connection_type_find(&value); break; case MRCP_ATTRIB_RESOURCE: apt_string_assign(&control_media->resource_name,attrib->a_value,pool); break; case MRCP_ATTRIB_CHANNEL: apt_string_set(&value,attrib->a_value); apt_id_resource_parse(&value,'@',&control_media->session_id,&control_media->resource_name,pool); break; case MRCP_ATTRIB_CMID: mrcp_cmid_add(control_media->cmid_arr,atoi(attrib->a_value)); break; default: break; } } if(sdp_media->m_connections) { apt_string_assign(&control_media->ip,sdp_media->m_connections->c_address,pool); } else { control_media->ip = *ip; } control_media->port = (apr_port_t)sdp_media->m_port; return TRUE; }
static apt_bool_t mrcp_client_channel_add(mrcp_client_session_t *session, mrcp_channel_t *channel) { mpf_rtp_termination_descriptor_t *rtp_descriptor = NULL; rtp_termination_slot_t *slot; apr_pool_t *pool = session->base.pool; mrcp_profile_t *profile = session->profile; if(mrcp_client_channel_find(session,channel,NULL) == TRUE) { /* update */ return mrcp_client_channel_modify(session,channel,TRUE); } if(!session->offer) { session->offer = mrcp_session_descriptor_create(pool); } mrcp_client_session_state_set(session,SESSION_STATE_GENERATING_OFFER); if(mrcp_session_version_get(session) == MRCP_VERSION_1) { session->offer->resource_name = channel->resource->name; session->offer->resource_state = TRUE; } else { mrcp_control_descriptor_t *control_media; if(!channel->control_channel) { channel->control_channel = mrcp_client_control_channel_create(profile->connection_agent,channel,pool); mrcp_client_control_channel_log_obj_set(channel->control_channel,session->base.log_obj); } control_media = mrcp_control_offer_create(pool); control_media->id = mrcp_session_control_media_add(session->offer,control_media); mrcp_cmid_add(control_media->cmid_arr,session->offer->control_media_arr->nelts); control_media->resource_name = channel->resource->name; if(mrcp_client_control_channel_add(channel->control_channel,control_media) == TRUE) { channel->waiting_for_channel = TRUE; mrcp_client_session_subrequest_add(session); } } apt_obj_log(APT_LOG_MARK,APT_PRIO_NOTICE,session->base.log_obj,"Add Control Channel "APT_NAMESIDRES_FMT, MRCP_SESSION_NAMESID(session), channel->resource->name.buf); /* add control channel */ APR_ARRAY_PUSH(session->channels,mrcp_channel_t*) = channel; /* add rtp termination slot */ slot = apr_array_push(session->terminations); slot->waiting = FALSE; slot->termination = NULL; slot->descriptor = NULL; slot->channel = channel; slot->id = 0; if(channel->termination) { /* media termination mode */ mpf_termination_t *termination; mpf_audio_stream_t *audio_stream; if(!session->context) { /* create media context first */ session->context = mpf_engine_context_create( profile->media_engine, session->base.name, session,5,pool); } apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Add 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_ADD_TERMINATION,session->context,channel->termination,NULL, &session->mpf_task_msg) == TRUE) { channel->waiting_for_termination = TRUE; mrcp_client_session_subrequest_add(session); } /* initialize rtp descriptor */ rtp_descriptor = apr_palloc(pool,sizeof(mpf_rtp_termination_descriptor_t)); mpf_rtp_termination_descriptor_init(rtp_descriptor); rtp_descriptor->audio.settings = profile->rtp_settings; audio_stream = mpf_termination_audio_stream_get(channel->termination); if(audio_stream) { mpf_rtp_media_descriptor_t *media; media = apr_palloc(pool,sizeof(mpf_rtp_media_descriptor_t)); mpf_rtp_media_descriptor_init(media); media->state = MPF_MEDIA_ENABLED; media->direction = mpf_stream_reverse_direction_get(audio_stream->direction); rtp_descriptor->audio.local = media; if(audio_stream->capabilities) { rtp_descriptor->audio.capabilities = mpf_stream_capabilities_clone(audio_stream->capabilities,pool); rtp_descriptor->audio.capabilities->direction = media->direction; } } /* create rtp termination */ termination = mpf_termination_create(profile->rtp_termination_factory,session,pool); slot->termination = termination; apt_obj_log(APT_LOG_MARK,APT_PRIO_DEBUG,session->base.log_obj,"Add Media Termination "APT_NAMESIDRES_FMT, MRCP_SESSION_NAMESID(session), mpf_termination_name_get(termination)); /* send add termination request (add to media context) */ if(mpf_engine_termination_message_add( profile->media_engine, MPF_ADD_TERMINATION,session->context,termination,rtp_descriptor, &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); } else { /* bypass media mode */ if(channel->rtp_termination_slot) { rtp_descriptor = channel->rtp_termination_slot->descriptor; if(rtp_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; slot->id = session->offer->audio_media_arr->nelts - 1; } } } } slot->descriptor = rtp_descriptor; channel->rtp_termination_slot = slot; if(!session->subrequest_count) { /* send offer to server */ mrcp_client_session_offer_send(session); } return TRUE; }