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); }
static apt_bool_t mpf_rtp_stream_media_negotiate(mpf_rtp_stream_t *rtp_stream) { mpf_rtp_media_descriptor_t *local_media = rtp_stream->local_media; mpf_rtp_media_descriptor_t *remote_media = rtp_stream->remote_media; if(!local_media || !remote_media) { return FALSE; } local_media->id = remote_media->id; local_media->mid = remote_media->mid; local_media->ptime = remote_media->ptime; if(rtp_stream->state == MPF_MEDIA_DISABLED && remote_media->state == MPF_MEDIA_ENABLED) { /* enable RTP/RTCP session */ rtp_stream->state = MPF_MEDIA_ENABLED; if(rtp_stream->rtp_l_sockaddr) { apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Enable RTP Session %s:%hu", rtp_stream->rtp_l_sockaddr->hostname, rtp_stream->rtp_l_sockaddr->port); } if(rtp_stream->rtcp_tx_timer) { apt_timer_set(rtp_stream->rtcp_tx_timer,rtp_stream->settings->rtcp_tx_interval); } if(rtp_stream->rtcp_rx_timer) { apt_timer_set(rtp_stream->rtcp_rx_timer,rtp_stream->settings->rtcp_rx_resolution); } } else if(rtp_stream->state == MPF_MEDIA_ENABLED && remote_media->state == MPF_MEDIA_DISABLED) { /* disable RTP/RTCP session */ rtp_stream->state = MPF_MEDIA_DISABLED; if(rtp_stream->rtp_l_sockaddr) { apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Disable RTP Session %s:%hu", rtp_stream->rtp_l_sockaddr->hostname, rtp_stream->rtp_l_sockaddr->port); } if(rtp_stream->rtcp_tx_timer) { apt_timer_kill(rtp_stream->rtcp_tx_timer); } if(rtp_stream->rtcp_rx_timer) { apt_timer_kill(rtp_stream->rtcp_rx_timer); } if(rtp_stream->settings->rtcp == TRUE && rtp_stream->settings->rtcp_bye_policy != RTCP_BYE_DISABLE) { apt_str_t reason = {RTCP_BYE_SESSION_ENDED, sizeof(RTCP_BYE_SESSION_ENDED)-1}; mpf_rtcp_bye_send(rtp_stream,&reason); } } local_media->state = remote_media->state; local_media->direction = mpf_stream_reverse_direction_get(remote_media->direction); if(remote_media->state == MPF_MEDIA_ENABLED) { mpf_codec_list_t *codec_list1 = NULL; mpf_codec_list_t *codec_list2 = NULL; /* intersect local and remote codecs */ if(rtp_stream->settings->own_preferrence == TRUE) { codec_list1 = &local_media->codec_list; codec_list2 = &remote_media->codec_list; } else { codec_list2 = &local_media->codec_list; codec_list1 = &remote_media->codec_list; } if(mpf_codec_lists_intersect(codec_list1,codec_list2) == FALSE) { /* reject RTP/RTCP session */ rtp_stream->state = MPF_MEDIA_DISABLED; local_media->direction = STREAM_DIRECTION_NONE; local_media->state = MPF_MEDIA_DISABLED; if(rtp_stream->rtp_l_sockaddr) { apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Reject RTP Session %s:%hu no codecs matched", rtp_stream->rtp_l_sockaddr->hostname, rtp_stream->rtp_l_sockaddr->port); } if(rtp_stream->rtcp_tx_timer) { apt_timer_kill(rtp_stream->rtcp_tx_timer); } if(rtp_stream->rtcp_rx_timer) { apt_timer_kill(rtp_stream->rtcp_rx_timer); } } } rtp_stream->base->direction = local_media->direction; 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 mpf_rtp_stream_media_negotiate(mpf_rtp_stream_t *rtp_stream) { mpf_rtp_media_descriptor_t *local_media = rtp_stream->local_media; mpf_rtp_media_descriptor_t *remote_media = rtp_stream->remote_media; if(!local_media || !remote_media) { return FALSE; } local_media->id = remote_media->id; local_media->mid = remote_media->mid; local_media->ptime = remote_media->ptime; if(rtp_stream->state == MPF_MEDIA_DISABLED && remote_media->state == MPF_MEDIA_ENABLED) { /* enable RTP/RTCP session */ rtp_stream->state = MPF_MEDIA_ENABLED; if(rtp_stream->rtp_l_sockaddr) { apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Enable RTP Session %s:%hu", rtp_stream->rtp_l_sockaddr->hostname, rtp_stream->rtp_l_sockaddr->port); } if(rtp_stream->rtcp_tx_timer) { mpf_timer_set(rtp_stream->rtcp_tx_timer,rtp_stream->config->rtcp_tx_interval); } if(rtp_stream->rtcp_rx_timer) { mpf_timer_set(rtp_stream->rtcp_rx_timer,rtp_stream->config->rtcp_rx_resolution); } } else if(rtp_stream->state == MPF_MEDIA_ENABLED && remote_media->state == MPF_MEDIA_DISABLED) { /* disable RTP/RTCP session */ rtp_stream->state = MPF_MEDIA_DISABLED; if(rtp_stream->rtp_l_sockaddr) { apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Disable RTP Session %s:%hu", rtp_stream->rtp_l_sockaddr->hostname, rtp_stream->rtp_l_sockaddr->port); } if(rtp_stream->rtcp_tx_timer) { mpf_timer_kill(rtp_stream->rtcp_tx_timer); } if(rtp_stream->rtcp_rx_timer) { mpf_timer_kill(rtp_stream->rtcp_rx_timer); } if(rtp_stream->config->rtcp == TRUE && rtp_stream->config->rtcp_bye_policy != RTCP_BYE_DISABLE) { apt_str_t reason = {RTCP_BYE_SESSION_ENDED, sizeof(RTCP_BYE_SESSION_ENDED)-1}; mpf_rtcp_bye_send(rtp_stream,&reason); } } local_media->state = remote_media->state; local_media->direction = mpf_stream_reverse_direction_get(remote_media->direction); rtp_stream->base->direction = local_media->direction; if(remote_media->state == MPF_MEDIA_ENABLED) { if(mpf_codec_list_is_empty(&remote_media->codec_list) == TRUE) { /* no remote codecs available, initialize them according to the local codecs */ mpf_codec_list_copy(&remote_media->codec_list, &local_media->codec_list, rtp_stream->pool); } /* intersect local and remote codecs */ if(rtp_stream->config->own_preferrence == TRUE) { mpf_codec_lists_intersect( &local_media->codec_list, &remote_media->codec_list); } else { mpf_codec_lists_intersect( &remote_media->codec_list, &local_media->codec_list); } } return TRUE; }