/** Create demo RTP termination descriptor */ mpf_rtp_termination_descriptor_t* demo_rtp_descriptor_create(apr_pool_t *pool) { mpf_codec_descriptor_t *codec_descriptor; mpf_rtp_media_descriptor_t *media; /* create rtp descriptor */ mpf_rtp_termination_descriptor_t *rtp_descriptor = apr_palloc(pool,sizeof(mpf_rtp_termination_descriptor_t)); mpf_rtp_termination_descriptor_init(rtp_descriptor); /* create rtp local media */ media = apr_palloc(pool,sizeof(mpf_rtp_media_descriptor_t)); mpf_rtp_media_descriptor_init(media); apt_string_assign(&media->ip,"127.0.0.1",pool); media->port = 6000; media->state = MPF_MEDIA_ENABLED; media->direction = STREAM_DIRECTION_RECEIVE; /* initialize codec list */ mpf_codec_list_init(&media->codec_list,2,pool); /* set codec descriptor */ codec_descriptor = mpf_codec_list_add(&media->codec_list); if(codec_descriptor) { codec_descriptor->payload_type = 0; } /* set another codec descriptor */ codec_descriptor = mpf_codec_list_add(&media->codec_list); if(codec_descriptor) { codec_descriptor->payload_type = 96; apt_string_set(&codec_descriptor->name,"PCMU"); codec_descriptor->sampling_rate = 16000; codec_descriptor->channel_count = 1; } rtp_descriptor->audio.local = media; return rtp_descriptor; }
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_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 = &((rtp_termination_slot_t*)session->terminations->elts)[i]; 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_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Modify Termination"); if(mrcp_client_mpf_request_send(session->profile->media_engine,MPF_COMMAND_MODIFY,session->context,slot->termination,rtp_descriptor) == TRUE) { slot->waiting = TRUE; session->answer_flag_count++; } } } 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; }
static apt_bool_t mrcp_client_channel_add(mrcp_client_session_t *session, mrcp_channel_t *channel) { mrcp_channel_t **channel_slot; mrcp_control_descriptor_t *control_media; mpf_rtp_termination_descriptor_t *rtp_descriptor = NULL; rtp_termination_slot_t *termination_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->base.signaling_agent = profile->signaling_agent; session->base.signaling_agent->create_client_session(&session->base); session->offer = mrcp_session_descriptor_create(pool); session->context = mpf_context_create(session,5,pool); } if(!channel->resource) { channel->resource = mrcp_resource_get(profile->resource_factory,channel->resource_id); if(!channel->resource) { return FALSE; } channel->resource_name = mrcp_resource_name_get(profile->resource_factory,channel->resource_id); if(!channel->resource_name) { return FALSE; } } if(session->base.signaling_agent->mrcp_version == MRCP_VERSION_1) { session->offer->resource_name = *channel->resource_name; session->offer->resource_state = TRUE; } else { if(!channel->control_channel) { channel->control_channel = mrcp_client_control_channel_create(profile->connection_agent,channel,pool); } control_media = mrcp_control_offer_create(pool); control_media->id = mrcp_session_control_media_add(session->offer,control_media); control_media->cmid = 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; session->offer_flag_count++; } } /* add to channel array */ apt_log(APT_LOG_MARK,APT_PRIO_NOTICE,"Add Control Channel <%s@%s>", mrcp_session_str(session), channel->resource_name->buf); channel_slot = apr_array_push(session->channels); *channel_slot = channel; if(channel->termination) { if(mrcp_client_mpf_request_send(profile->media_engine,MPF_COMMAND_ADD,session->context,channel->termination,NULL) == TRUE) { channel->waiting_for_termination = TRUE; session->offer_flag_count++; } } if(channel->rtp_termination_slot) { rtp_descriptor = channel->rtp_termination_slot->descriptor; } /* add to rtp termination array */ apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Add RTP Termination"); termination_slot = apr_array_push(session->terminations); termination_slot->waiting = FALSE; termination_slot->termination = NULL; termination_slot->descriptor = NULL; if(rtp_descriptor) { if(rtp_descriptor->audio.local) { session->offer->ip = rtp_descriptor->audio.local->base.ip; rtp_descriptor->audio.local->base.id = mrcp_session_audio_media_add(session->offer,rtp_descriptor->audio.local); rtp_descriptor->audio.local->mid = session->offer->audio_media_arr->nelts; } } else { /* create rtp termination */ mpf_termination_t *termination = mpf_termination_create(profile->rtp_termination_factory,session,session->base.pool); termination_slot->termination = termination; /* initialize rtp descriptor */ rtp_descriptor = apr_palloc(pool,sizeof(mpf_rtp_termination_descriptor_t)); mpf_rtp_termination_descriptor_init(rtp_descriptor); if(channel->termination && channel->termination->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->base.state = MPF_MEDIA_ENABLED; media->mode = mpf_stream_mode_negotiate(channel->termination->audio_stream->mode); rtp_descriptor->audio.local = media; } /* send add termination request (add to media context) */ if(mrcp_client_mpf_request_send(profile->media_engine,MPF_COMMAND_ADD,session->context,termination,rtp_descriptor) == TRUE) { termination_slot->waiting = TRUE; session->offer_flag_count++; } } termination_slot->descriptor = rtp_descriptor; channel->rtp_termination_slot = termination_slot; if(!session->offer_flag_count) { /* send offer to server */ mrcp_client_session_offer_send(session); } return TRUE; }
static apt_bool_t mrcp_server_av_media_offer_process(mrcp_server_session_t *session, mrcp_session_descriptor_t *descriptor) { mrcp_termination_slot_t *slot; int i; int count = session->terminations->nelts; if(!descriptor->audio_media_arr->nelts) { /* no media to process */ return TRUE; } if(count > descriptor->audio_media_arr->nelts) { apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Number of Terminations [%d] > Number of Audio Media in Offer [%d]", count,descriptor->audio_media_arr->nelts); count = descriptor->audio_media_arr->nelts; } /* update existing terminations */ for(i=0; i<count; i++) { mpf_rtp_termination_descriptor_t *rtp_descriptor; /* get existing termination */ slot = &((mrcp_termination_slot_t*)session->terminations->elts)[i]; if(!slot || !slot->termination) continue; /* 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 = mrcp_session_audio_media_get(descriptor,i); /* send modify termination request */ apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Modify RTP Termination [%d]",i); if(mrcp_server_mpf_request_send(session,MPF_COMMAND_MODIFY,session->context,slot->termination,rtp_descriptor) == TRUE) { slot->waiting = TRUE; session->answer_flag_count++; } } /* add new terminations */ for(; i<descriptor->audio_media_arr->nelts; i++) { mpf_rtp_termination_descriptor_t *rtp_descriptor; mpf_termination_t *termination; /* create new RTP termination instance */ termination = mpf_termination_create(session->profile->rtp_termination_factory,session,session->base.pool); /* add to termination array */ apt_log(APT_LOG_MARK,APT_PRIO_DEBUG,"Add RTP Termination [%d]",i); slot = apr_array_push(session->terminations); slot->id = i; slot->waiting = FALSE; slot->termination = 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 = mrcp_session_audio_media_get(descriptor,i); /* send add termination request (add to media context) */ if(mrcp_server_mpf_request_send(session,MPF_COMMAND_ADD,session->context,termination,rtp_descriptor) == TRUE) { slot->waiting = TRUE; session->answer_flag_count++; } } return TRUE; }