/* Process outgoing RTSP request */ static apt_bool_t rtsp_client_session_request_process(rtsp_client_t *client, rtsp_client_session_t *session, rtsp_message_t *message) { if(!session->connection) { /* create RTSP connection */ if(rtsp_client_connection_create(client,session) == FALSE) { /* respond with error */ return FALSE; } apt_log(APT_LOG_MARK,APT_PRIO_INFO,"Add RTSP Handle "APT_PTR_FMT,session); apr_hash_set(session->connection->handle_table,session,sizeof(session),session); } rtsp_client_session_url_generate(session,message); if(session->id.length) { message->header.session_id = session->id; rtsp_header_property_add(&message->header.property_set,RTSP_HEADER_FIELD_SESSION_ID); } message->header.cseq = ++session->connection->last_cseq; rtsp_header_property_add(&message->header.property_set,RTSP_HEADER_FIELD_CSEQ); if(rtsp_client_message_send(client,session->connection->base,message) == FALSE) { /* respond with error */ return FALSE; } return rtsp_client_request_push(session->connection,session,message); }
static apt_bool_t mrcp_unirtsp_on_session_control(mrcp_session_t *mrcp_session, mrcp_message_t *mrcp_message) { mrcp_unirtsp_session_t *session = mrcp_session->obj; mrcp_unirtsp_agent_t *agent = mrcp_session->signaling_agent->obj; char buffer[500]; apt_text_stream_t stream; rtsp_message_t *rtsp_message = NULL; apt_str_t *body; apt_text_stream_init(&stream,buffer,sizeof(buffer)); mrcp_message->start_line.version = MRCP_VERSION_1; if(mrcp_message_generate(agent->sig_agent->resource_factory,mrcp_message,&stream) != TRUE) { apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Generate MRCPv1 Message"); return FALSE; } stream.text.length = stream.pos - stream.text.buf; if(mrcp_message->start_line.message_type == MRCP_MESSAGE_TYPE_RESPONSE) { /* send RTSP response (OK) */ const rtsp_message_t *request = rtsp_server_session_request_get(session->rtsp_session); if(request) { rtsp_message = rtsp_response_create(request,RTSP_STATUS_CODE_OK,RTSP_REASON_PHRASE_OK,mrcp_session->pool); } } else if(mrcp_message->start_line.message_type == MRCP_MESSAGE_TYPE_EVENT) { /* send RTSP announce */ rtsp_message = rtsp_request_create(mrcp_session->pool); rtsp_message->start_line.common.request_line.resource_name = rtsp_name_get_by_mrcp_name( agent->config->resource_map, mrcp_message->channel_id.resource_name.buf); rtsp_message->start_line.common.request_line.method_id = RTSP_METHOD_ANNOUNCE; } if(!rtsp_message) { return FALSE; } body = &rtsp_message->body; body->length = mrcp_message->start_line.length; body->buf = apr_palloc(rtsp_message->pool,body->length+1); memcpy(body->buf,stream.text.buf,stream.text.length); if(mrcp_message->body.length) { memcpy(body->buf+stream.text.length,mrcp_message->body.buf,mrcp_message->body.length); } body->buf[body->length] = '\0'; rtsp_message->header.content_type = RTSP_CONTENT_TYPE_MRCP; rtsp_header_property_add(&rtsp_message->header,RTSP_HEADER_FIELD_CONTENT_TYPE,rtsp_message->pool); rtsp_message->header.content_length = body->length; rtsp_header_property_add(&rtsp_message->header,RTSP_HEADER_FIELD_CONTENT_LENGTH,rtsp_message->pool); rtsp_server_session_respond(agent->rtsp_server,session->rtsp_session,rtsp_message); return TRUE; }
/* Finally terminate RTSP session */ static apt_bool_t rtsp_server_session_do_terminate(rtsp_server_t *server, rtsp_server_session_t *session) { rtsp_server_connection_t *rtsp_connection = session->connection; if(session->active_request) { rtsp_message_t *response = rtsp_response_create(session->active_request, RTSP_STATUS_CODE_OK,RTSP_REASON_PHRASE_OK,session->active_request->pool); if(response) { if(session->id.buf) { response->header.session_id = session->id; rtsp_header_property_add(&response->header,RTSP_HEADER_FIELD_SESSION_ID,response->pool); } if(rtsp_connection) { rtsp_server_message_send(server,rtsp_connection,response); } } } apt_log(RTSP_LOG_MARK,APT_PRIO_INFO,"Remove RTSP Session " APT_SID_FMT,session->id.buf); if(rtsp_connection) { apr_hash_set(rtsp_connection->session_table,session->id.buf,session->id.length,NULL); } rtsp_server_session_destroy(session); if(rtsp_connection && !rtsp_connection->sock) { if(apr_hash_count(rtsp_connection->session_table) == 0) { rtsp_server_connection_destroy(rtsp_connection); } } return TRUE; }
/* Process incoming RTSP event (request) */ static apt_bool_t rtsp_client_session_event_process(rtsp_client_t *client, rtsp_client_connection_t *rtsp_connection, rtsp_message_t *message) { rtsp_message_t *response = NULL; rtsp_client_session_t *session = NULL; if(rtsp_header_property_check(&message->header.property_set,RTSP_HEADER_FIELD_SESSION_ID) == TRUE) { /* find existing session */ session = apr_hash_get( rtsp_connection->session_table, message->header.session_id.buf, message->header.session_id.length); } if(session) { response = rtsp_response_create(message,RTSP_STATUS_CODE_OK,RTSP_REASON_PHRASE_OK,message->pool); if(rtsp_header_property_check(&message->header.property_set,RTSP_HEADER_FIELD_SESSION_ID) == TRUE) { response->header.session_id = message->header.session_id; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_SESSION_ID); } client->vtable->on_session_event(client,session,message); } else { response = rtsp_response_create(message,RTSP_STATUS_CODE_NOT_FOUND,RTSP_REASON_PHRASE_NOT_FOUND,message->pool); } return rtsp_client_message_send(client,rtsp_connection->base,response); }
/** Parse RTSP header */ RTSP_DECLARE(apt_bool_t) rtsp_header_parse(rtsp_header_t *header, apt_text_stream_t *text_stream, apr_pool_t *pool) { apt_pair_t pair; apt_bool_t result = FALSE; do { if(apt_text_header_read(text_stream,&pair) == TRUE) { if(pair.name.length) { /* parse header_field (name/value) */ rtsp_header_field_id id = apt_string_table_id_find(rtsp_header_string_table,RTSP_HEADER_FIELD_COUNT,&pair.name); if(id < RTSP_HEADER_FIELD_COUNT) { if(rtsp_header_field_parse(header,id,&pair.value,pool) == TRUE) { rtsp_header_property_add(&header->property_set,id); } } } else { /* empty header -> exit */ result = TRUE; break; } } } while(apt_text_is_eos(text_stream) == FALSE); return result; }
/** Generate RTSP resource discovery response */ MRCP_DECLARE(rtsp_message_t*) rtsp_resource_discovery_response_generate( const rtsp_message_t *request, const char *ip, const char *origin, apr_pool_t *pool) { rtsp_message_t *response = rtsp_response_create(request,RTSP_STATUS_CODE_OK,RTSP_REASON_PHRASE_OK,pool); if(response) { apr_size_t offset = 0; char buffer[2048]; apr_size_t size = sizeof(buffer); if(!ip) { ip = "0.0.0.0"; } if(!origin) { origin = "-"; } buffer[0] = '\0'; offset += snprintf(buffer+offset,size-offset, "v=0\r\n" "o=%s 0 0 IN IP4 %s\r\n" "s=-\r\n" "c=IN IP4 %s\r\n" "t=0 0\r\n" "m=audio 0 RTP/AVP 0 8 96 101\r\n" "a=rtpmap:0 PCMU/8000\r\n" "a=rtpmap:8 PCMA/8000\r\n" "a=rtpmap:96 L16/8000\r\n" "a=rtpmap:101 telephone-event/8000\r\n", origin, ip, ip); if(offset) { apt_string_assign_n(&response->body,buffer,offset,pool); response->header.content_type = RTSP_CONTENT_TYPE_SDP; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_CONTENT_TYPE); response->header.content_length = offset; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_CONTENT_LENGTH); } } return response; }
static apt_bool_t mrcp_unirtsp_session_control(mrcp_session_t *mrcp_session, mrcp_message_t *mrcp_message) { mrcp_unirtsp_session_t *session = mrcp_session->obj; mrcp_unirtsp_agent_t *agent = mrcp_session->signaling_agent->obj; char buffer[2000]; apt_text_stream_t stream; rtsp_message_t *rtsp_message = NULL; apt_str_t *body; apt_text_stream_init(&stream,buffer,sizeof(buffer)); mrcp_message->start_line.version = MRCP_VERSION_1; if(mrcp_message_generate(agent->sig_agent->resource_factory,mrcp_message,&stream) != TRUE) { apt_log(RTSP_LOG_MARK,APT_PRIO_WARNING,"Failed to Generate MRCPv1 Message"); return FALSE; } stream.text.length = stream.pos - stream.text.buf; rtsp_message = rtsp_request_create(mrcp_session->pool); rtsp_message->start_line.common.request_line.resource_name = rtsp_name_get_by_mrcp_name( session->rtsp_settings->resource_map, mrcp_message->channel_id.resource_name.buf); rtsp_message->start_line.common.request_line.method_id = RTSP_METHOD_ANNOUNCE; body = &rtsp_message->body; body->length = mrcp_message->start_line.length; body->buf = apr_palloc(rtsp_message->pool,body->length+1); memcpy(body->buf,stream.text.buf,stream.text.length); if(mrcp_message->body.length) { memcpy(body->buf+stream.text.length,mrcp_message->body.buf,mrcp_message->body.length); } body->buf[body->length] = '\0'; rtsp_message->header.content_type = RTSP_CONTENT_TYPE_MRCP; rtsp_header_property_add(&rtsp_message->header,RTSP_HEADER_FIELD_CONTENT_TYPE,rtsp_message->pool); rtsp_message->header.content_length = body->length; rtsp_header_property_add(&rtsp_message->header,RTSP_HEADER_FIELD_CONTENT_LENGTH,rtsp_message->pool); session->mrcp_message = mrcp_message; rtsp_client_session_request(agent->rtsp_client,session->rtsp_session,rtsp_message); return TRUE; }
/* Process outgoing RTSP response */ static apt_bool_t rtsp_server_session_response_process(rtsp_server_t *server, rtsp_server_session_t *session, rtsp_message_t *message) { if(message->start_line.message_type == RTSP_MESSAGE_TYPE_REQUEST) { /* RTSP ANNOUNCE request (asynch event) */ message->start_line.common.request_line.url = session->url; if(session->id.buf) { message->header.session_id = session->id; rtsp_header_property_add(&message->header.property_set,RTSP_HEADER_FIELD_SESSION_ID); } rtsp_server_message_send(server,session->connection->base,message); return TRUE; } if(session->id.buf) { message->header.session_id = session->id; rtsp_header_property_add(&message->header.property_set,RTSP_HEADER_FIELD_SESSION_ID); } rtsp_server_message_send(server,session->connection->base,message); if(session->active_request) { rtsp_message_t *request = session->active_request; if(request->start_line.common.request_line.method_id == RTSP_METHOD_SETUP) { if(message->start_line.common.status_line.status_code != RTSP_STATUS_CODE_OK) { rtsp_server_session_terminate_request(server,session); } } else if(request->start_line.common.request_line.method_id == RTSP_METHOD_DESCRIBE) { rtsp_server_session_terminate_request(server,session); } } session->active_request = apt_list_pop_front(session->request_queue); if(session->active_request) { rtsp_server_session_message_handle(server,session,session->active_request); } return TRUE; }
/* Process outgoing RTSP response */ static apt_bool_t rtsp_server_session_response_process(rtsp_server_t *server, rtsp_server_session_t *session, rtsp_message_t *message) { apt_bool_t terminate = FALSE; rtsp_message_t *request = NULL; if(message->start_line.message_type == RTSP_MESSAGE_TYPE_REQUEST) { /* RTSP ANNOUNCE request (asynch event) */ const char *resource_name = message->start_line.common.request_line.resource_name; if(resource_name) { request = apr_hash_get(session->resource_table,resource_name,APR_HASH_KEY_STRING); } if(!request) { return FALSE; } message->start_line.common.request_line.url = request->start_line.common.request_line.url; message->header.cseq = session->last_cseq; rtsp_header_property_add(&message->header,RTSP_HEADER_FIELD_CSEQ,message->pool); if(session->id.buf) { message->header.session_id = session->id; rtsp_header_property_add(&message->header,RTSP_HEADER_FIELD_SESSION_ID,message->pool); } rtsp_server_message_send(server,session->connection,message); return TRUE; } if(!session->active_request) { /* unexpected response */ return FALSE; } request = session->active_request; if(request->start_line.common.request_line.method_id == RTSP_METHOD_DESCRIBE) { terminate = TRUE; } else { if(session->id.buf) { message->header.session_id = session->id; rtsp_header_property_add(&message->header,RTSP_HEADER_FIELD_SESSION_ID,message->pool); } if(request->start_line.common.request_line.method_id == RTSP_METHOD_SETUP) { if(message->start_line.common.status_line.status_code == RTSP_STATUS_CODE_OK) { /* add resource */ const char *resource_name = request->start_line.common.request_line.resource_name; apr_hash_set(session->resource_table,resource_name,APR_HASH_KEY_STRING,request); } else if(apr_hash_count(session->resource_table) == 0) { terminate = TRUE; } } } session->last_cseq = message->header.cseq; rtsp_server_message_send(server,session->connection,message); if(terminate == TRUE) { session->active_request = NULL; rtsp_server_session_terminate_request(server,session); return TRUE; } session->active_request = apt_list_pop_front(session->request_queue); if(session->active_request) { rtsp_server_session_message_handle(server,session,session->active_request); } return TRUE; }
/** Generate RTSP response by MRCP descriptor */ MRCP_DECLARE(rtsp_message_t*) rtsp_response_generate_by_mrcp_descriptor(const rtsp_message_t *request, const mrcp_session_descriptor_t *descriptor, const apr_table_t *resource_map, apr_pool_t *pool) { rtsp_message_t *response = NULL; switch(descriptor->status) { case MRCP_SESSION_STATUS_OK: response = rtsp_response_create(request,RTSP_STATUS_CODE_OK,RTSP_REASON_PHRASE_OK,pool); break; case MRCP_SESSION_STATUS_NO_SUCH_RESOURCE: response = rtsp_response_create(request,RTSP_STATUS_CODE_NOT_FOUND,RTSP_REASON_PHRASE_NOT_FOUND,pool); break; case MRCP_SESSION_STATUS_UNACCEPTABLE_RESOURCE: case MRCP_SESSION_STATUS_UNAVAILABLE_RESOURCE: response = rtsp_response_create(request,RTSP_STATUS_CODE_NOT_ACCEPTABLE,RTSP_REASON_PHRASE_NOT_ACCEPTABLE,pool); break; case MRCP_SESSION_STATUS_ERROR: response = rtsp_response_create(request,RTSP_STATUS_CODE_INTERNAL_SERVER_ERROR,RTSP_REASON_PHRASE_INTERNAL_SERVER_ERROR,pool); break; } if(!response) { return NULL; } if(descriptor->status == MRCP_SESSION_STATUS_OK) { apr_size_t i; apr_size_t count; apr_size_t audio_index = 0; mpf_rtp_media_descriptor_t *audio_media; apr_size_t video_index = 0; mpf_rtp_media_descriptor_t *video_media; apr_size_t offset = 0; char buffer[2048]; apr_size_t size = sizeof(buffer); const char *ip = descriptor->ext_ip.buf ? descriptor->ext_ip.buf : (descriptor->ip.buf ? descriptor->ip.buf : "0.0.0.0"); buffer[0] = '\0'; offset += snprintf(buffer+offset,size-offset, "v=0\r\n" "o=%s 0 0 IN IP4 %s\r\n" "s=-\r\n" "c=IN IP4 %s\r\n" "t=0 0\r\n", descriptor->origin.buf ? descriptor->origin.buf : "-", ip, ip); count = mrcp_session_media_count_get(descriptor); for(i=0; i<count; i++) { audio_media = mrcp_session_audio_media_get(descriptor,audio_index); if(audio_media && audio_media->id == i) { /* generate audio media */ rtsp_transport_t *transport; audio_index++; offset += sdp_rtp_media_generate(buffer+offset,size-offset,descriptor,audio_media); transport = &response->header.transport; transport->server_port_range.min = audio_media->port; transport->server_port_range.max = audio_media->port+1; transport->client_port_range = request->header.transport.client_port_range; continue; } video_media = mrcp_session_video_media_get(descriptor,video_index); if(video_media && video_media->id == i) { /* generate video media */ video_index++; offset += sdp_rtp_media_generate(buffer+offset,size-offset,descriptor,video_media); continue; } } /* ok */ response->header.transport.protocol = RTSP_TRANSPORT_RTP; response->header.transport.profile = RTSP_PROFILE_AVP; response->header.transport.delivery = RTSP_DELIVERY_UNICAST; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_TRANSPORT); if(offset) { apt_string_assign_n(&response->body,buffer,offset,pool); response->header.content_type = RTSP_CONTENT_TYPE_SDP; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_CONTENT_TYPE); response->header.content_length = offset; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_CONTENT_LENGTH); } } return response; }
/** Generate RTSP request by MRCP descriptor */ MRCP_DECLARE(rtsp_message_t*) rtsp_request_generate_by_mrcp_descriptor(const mrcp_session_descriptor_t *descriptor, const apr_table_t *resource_map, apr_pool_t *pool) { apr_size_t i; apr_size_t count; apr_size_t audio_index = 0; mpf_rtp_media_descriptor_t *audio_media; apr_size_t video_index = 0; mpf_rtp_media_descriptor_t *video_media; apr_size_t offset = 0; char buffer[2048]; apr_size_t size = sizeof(buffer); rtsp_message_t *request; const char *ip = descriptor->ext_ip.buf ? descriptor->ext_ip.buf : (descriptor->ip.buf ? descriptor->ip.buf : "0.0.0.0"); request = rtsp_request_create(pool); request->start_line.common.request_line.resource_name = rtsp_name_get_by_mrcp_name( resource_map, descriptor->resource_name.buf); if(descriptor->resource_state != TRUE) { request->start_line.common.request_line.method_id = RTSP_METHOD_TEARDOWN; return request; } request->start_line.common.request_line.method_id = RTSP_METHOD_SETUP; buffer[0] = '\0'; offset += snprintf(buffer+offset,size-offset, "v=0\r\n" "o=%s 0 0 IN IP4 %s\r\n" "s=-\r\n" "c=IN IP4 %s\r\n" "t=0 0\r\n", descriptor->origin.buf ? descriptor->origin.buf : "-", ip, ip); count = mrcp_session_media_count_get(descriptor); for(i=0; i<count; i++) { audio_media = mrcp_session_audio_media_get(descriptor,audio_index); if(audio_media && audio_media->id == i) { /* generate audio media */ audio_index++; offset += sdp_rtp_media_generate(buffer+offset,size-offset,descriptor,audio_media); request->header.transport.client_port_range.min = audio_media->port; request->header.transport.client_port_range.max = audio_media->port+1; continue; } video_media = mrcp_session_video_media_get(descriptor,video_index); if(video_media && video_media->id == i) { /* generate video media */ video_index++; offset += sdp_rtp_media_generate(buffer+offset,size-offset,descriptor,video_media); continue; } } request->header.transport.protocol = RTSP_TRANSPORT_RTP; request->header.transport.profile = RTSP_PROFILE_AVP; request->header.transport.delivery = RTSP_DELIVERY_UNICAST; rtsp_header_property_add(&request->header.property_set,RTSP_HEADER_FIELD_TRANSPORT); if(offset) { apt_string_assign_n(&request->body,buffer,offset,pool); request->header.content_type = RTSP_CONTENT_TYPE_SDP; rtsp_header_property_add(&request->header.property_set,RTSP_HEADER_FIELD_CONTENT_TYPE); request->header.content_length = offset; rtsp_header_property_add(&request->header.property_set,RTSP_HEADER_FIELD_CONTENT_LENGTH); } return request; }
/** Generate RTSP response by MRCP descriptor */ MRCP_DECLARE(rtsp_message_t*) rtsp_response_generate_by_mrcp_descriptor(const rtsp_message_t *request, const mrcp_session_descriptor_t *descriptor, apr_pool_t *pool) { apr_size_t i; apr_size_t count; apr_size_t audio_index = 0; mpf_rtp_media_descriptor_t *audio_media; apr_size_t video_index = 0; mpf_rtp_media_descriptor_t *video_media; apr_size_t offset = 0; char buffer[2048]; apr_size_t size = sizeof(buffer); rtsp_message_t *response; if(descriptor->resource_state != TRUE) { response = rtsp_response_create(request,RTSP_STATUS_CODE_NOT_FOUND,RTSP_REASON_PHRASE_NOT_FOUND,pool); return response; } response = rtsp_response_create(request,RTSP_STATUS_CODE_OK,RTSP_REASON_PHRASE_OK,pool); if(!response) { return NULL; } buffer[0] = '\0'; offset += snprintf(buffer+offset,size-offset, "v=0\r\n" "o=%s 0 0 IN IP4 %s\r\n" "s=-\r\n" "c=IN IP4 %s\r\n" "t=0 0\r\n", descriptor->origin.buf ? descriptor->origin.buf : "-", descriptor->ip.buf ? descriptor->ip.buf : "0", descriptor->ip.buf ? descriptor->ip.buf : "0"); count = mrcp_session_media_count_get(descriptor); for(i=0; i<count; i++) { audio_media = mrcp_session_audio_media_get(descriptor,audio_index); if(audio_media && audio_media->base.id == i) { /* generate audio media */ audio_index++; offset += sdp_rtp_media_generate(buffer+offset,size-offset,descriptor,audio_media); continue; } video_media = mrcp_session_video_media_get(descriptor,video_index); if(video_media && video_media->base.id == i) { /* generate video media */ video_index++; offset += sdp_rtp_media_generate(buffer+offset,size-offset,descriptor,video_media); continue; } } /* ok */ response->header.transport.profile = RTSP_PROFILE_RTP_AVP; response->header.transport.delivery = RTSP_DELIVERY_UNICAST; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_TRANSPORT); if(offset) { apt_string_assign_n(&response->body,buffer,offset,pool); response->header.content_type = RTSP_CONTENT_TYPE_SDP; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_CONTENT_TYPE); response->header.content_length = offset; rtsp_header_property_add(&response->header.property_set,RTSP_HEADER_FIELD_CONTENT_LENGTH); } return response; }