/** Generate MRCP descriptor by RTSP request */
MRCP_DECLARE(mrcp_session_descriptor_t*) mrcp_descriptor_generate_by_rtsp_request(
const rtsp_message_t *request,
const char *force_destination_ip,
const apr_table_t *resource_map,
apr_pool_t *pool,
su_home_t *home)
{
mrcp_session_descriptor_t *descriptor = NULL;
const char *resource_name = mrcp_name_get_by_rtsp_name(
resource_map,
request->start_line.common.request_line.resource_name);
if(!resource_name) {
return NULL;
}
if(request->start_line.common.request_line.method_id == RTSP_METHOD_SETUP) {
if(rtsp_header_property_check(&request->header.property_set,RTSP_HEADER_FIELD_CONTENT_TYPE) == TRUE &&
rtsp_header_property_check(&request->header.property_set,RTSP_HEADER_FIELD_CONTENT_LENGTH) == TRUE &&
request->body.buf) {
sdp_parser_t *parser;
sdp_session_t *sdp;
parser = sdp_parse(home,request->body.buf,request->body.length,0);
sdp = sdp_session(parser);
if(sdp) {
descriptor = mrcp_session_descriptor_create(pool);
mrcp_descriptor_generate_by_sdp_session(descriptor,sdp,force_destination_ip,pool);
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Parse SDP Message");
}
sdp_parser_free(parser);
}
else {
/* create default descriptor in case RTSP SETUP contains no SDP */
mpf_rtp_media_descriptor_t *media;
descriptor = mrcp_session_descriptor_create(pool);
media = apr_palloc(pool,sizeof(mpf_rtp_media_descriptor_t));
mpf_rtp_media_descriptor_init(media);
media->state = MPF_MEDIA_ENABLED;
media->id = mrcp_session_audio_media_add(descriptor,media);
if(rtsp_header_property_check(&request->header.property_set,RTSP_HEADER_FIELD_TRANSPORT) == TRUE) {
media->port = request->header.transport.client_port_range.min;
media->ip = request->header.transport.destination;
}
}
if(descriptor) {
apt_string_assign(&descriptor->resource_name,resource_name,pool);
descriptor->resource_state = TRUE;
}
}
else if(request->start_line.common.request_line.method_id == RTSP_METHOD_TEARDOWN) {
descriptor = mrcp_session_descriptor_create(pool);
apt_string_assign(&descriptor->resource_name,resource_name,pool);
descriptor->resource_state = FALSE;
}
return descriptor;
}
/** Generate MRCP descriptor by RTSP response */
MRCP_DECLARE(mrcp_session_descriptor_t*) mrcp_descriptor_generate_by_rtsp_response(
const rtsp_message_t *request,
const rtsp_message_t *response,
const char *force_destination_ip,
const apr_table_t *resource_map,
apr_pool_t *pool,
su_home_t *home)
{
mrcp_session_descriptor_t *descriptor = NULL;
const char *resource_name = mrcp_name_get_by_rtsp_name(
resource_map,
request->start_line.common.request_line.resource_name);
if(!resource_name) {
return NULL;
}
if(request->start_line.common.request_line.method_id == RTSP_METHOD_SETUP) {
if(rtsp_header_property_check(&response->header,RTSP_HEADER_FIELD_CONTENT_TYPE) == TRUE &&
rtsp_header_property_check(&response->header,RTSP_HEADER_FIELD_CONTENT_LENGTH) == TRUE &&
response->body.buf) {
sdp_parser_t *parser;
sdp_session_t *sdp;
parser = sdp_parse(home,response->body.buf,response->body.length,0);
sdp = sdp_session(parser);
if(sdp) {
descriptor = mrcp_session_descriptor_create(pool);
mrcp_descriptor_generate_by_sdp_session(descriptor,sdp,force_destination_ip,pool);
apt_string_assign(&descriptor->resource_name,resource_name,pool);
descriptor->resource_state = TRUE;
descriptor->response_code = response->start_line.common.status_line.status_code;
}
else {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Parse SDP Message");
}
sdp_parser_free(parser);
}
else {
descriptor = mrcp_session_descriptor_create(pool);
apt_string_assign(&descriptor->resource_name,resource_name,pool);
descriptor->resource_state = FALSE;
}
}
else if(request->start_line.common.request_line.method_id == RTSP_METHOD_TEARDOWN) {
descriptor = mrcp_session_descriptor_create(pool);
apt_string_assign(&descriptor->resource_name,resource_name,pool);
descriptor->resource_state = FALSE;
}
return descriptor;
}
/** Generate resource discovery descriptor by RTSP response */
MRCP_DECLARE(mrcp_session_descriptor_t*) mrcp_resource_discovery_response_generate(
const rtsp_message_t *request,
const rtsp_message_t *response,
const apr_table_t *resource_map,
apr_pool_t *pool,
su_home_t *home)
{
mrcp_session_descriptor_t *descriptor = NULL;
const char *resource_name = mrcp_name_get_by_rtsp_name(
resource_map,
request->start_line.common.request_line.resource_name);
if(!resource_name) {
return NULL;
}
descriptor = mrcp_session_descriptor_create(pool);
apt_string_assign(&descriptor->resource_name,resource_name,pool);
if(rtsp_header_property_check(&response->header,RTSP_HEADER_FIELD_CONTENT_TYPE) == TRUE &&
rtsp_header_property_check(&response->header,RTSP_HEADER_FIELD_CONTENT_LENGTH) == TRUE &&
response->body.buf) {
sdp_parser_t *parser;
sdp_session_t *sdp;
parser = sdp_parse(home,response->body.buf,response->body.length,0);
sdp = sdp_session(parser);
if(sdp) {
mrcp_descriptor_generate_by_sdp_session(descriptor,sdp,0,pool);
descriptor->resource_state = TRUE;
descriptor->response_code = response->start_line.common.status_line.status_code;
}
else {
apt_string_assign(&descriptor->resource_name,resource_name,pool);
descriptor->resource_state = TRUE;
}
sdp_parser_free(parser);
}
else {
descriptor->resource_state = FALSE;
}
return descriptor;
}
static apt_bool_t mrcp_unirtsp_on_session_event(rtsp_client_t *rtsp_client, rtsp_client_session_t *rtsp_session, rtsp_message_t *message)
{
mrcp_unirtsp_agent_t *agent = rtsp_client_object_get(rtsp_client);
mrcp_unirtsp_session_t *session = rtsp_client_session_object_get(rtsp_session);
const char *resource_name;
if(!session) {
return FALSE;
}
resource_name = mrcp_name_get_by_rtsp_name(
session->rtsp_settings->resource_map,
message->start_line.common.request_line.resource_name);
if(!resource_name) {
return FALSE;
}
mrcp_unirtsp_on_announce_response(agent,session,message,resource_name);
return TRUE;
}
static apt_bool_t mrcp_unirtsp_session_announce(mrcp_unirtsp_agent_t *agent, mrcp_unirtsp_session_t *session, rtsp_message_t *message)
{
const char *resource_name = mrcp_name_get_by_rtsp_name(
agent->config->resource_map,
message->start_line.common.request_line.resource_name);
apt_bool_t status = TRUE;
if(session && resource_name &&
rtsp_header_property_check(&message->header.property_set,RTSP_HEADER_FIELD_CONTENT_TYPE) == TRUE &&
message->header.content_type == RTSP_CONTENT_TYPE_MRCP &&
rtsp_header_property_check(&message->header.property_set,RTSP_HEADER_FIELD_CONTENT_LENGTH) == TRUE &&
message->header.content_length > 0) {
apt_text_stream_t text_stream;
mrcp_parser_t *parser;
apt_str_t resource_name_str;
text_stream.text = message->body;
text_stream.pos = text_stream.text.buf;
apt_string_set(&resource_name_str,resource_name);
parser = mrcp_parser_create(agent->sig_agent->resource_factory,session->mrcp_session->pool);
mrcp_parser_resource_name_set(parser,&resource_name_str);
if(mrcp_parser_run(parser,&text_stream) == MRCP_STREAM_MESSAGE_COMPLETE) {
mrcp_message_t *mrcp_message = mrcp_parser_message_get(parser);
mrcp_message->channel_id.session_id = message->header.session_id;
status = mrcp_session_control_request(session->mrcp_session,mrcp_message);
}
else {
/* error response */
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Parse MRCPv1 Message");
status = FALSE;
}
}
else {
/* error response */
status = FALSE;
}
return status;
}
static apt_bool_t mrcp_unirtsp_on_session_response(rtsp_client_t *rtsp_client, rtsp_client_session_t *rtsp_session, rtsp_message_t *request, rtsp_message_t *response)
{
apt_bool_t status = FALSE;
mrcp_unirtsp_agent_t *agent = rtsp_client_object_get(rtsp_client);
mrcp_unirtsp_session_t *session = rtsp_client_session_object_get(rtsp_session);
if(!agent || !session) {
return FALSE;
}
switch(request->start_line.common.request_line.method_id) {
case RTSP_METHOD_SETUP:
{
const apt_str_t *session_id;
const char *force_destination_ip = NULL;
mrcp_session_descriptor_t *descriptor;
if(session->rtsp_settings->force_destination == TRUE) {
force_destination_ip = session->rtsp_settings->server_ip;
}
descriptor = mrcp_descriptor_generate_by_rtsp_response(
request,
response,
force_destination_ip,
session->rtsp_settings->resource_map,
session->mrcp_session->pool,
session->home);
if(!descriptor) {
return FALSE;
}
session_id = rtsp_client_session_id_get(session->rtsp_session);
if(session_id) {
apt_string_copy(
&session->mrcp_session->id,
session_id,
session->mrcp_session->pool);
}
status = mrcp_session_answer(session->mrcp_session,descriptor);
break;
}
case RTSP_METHOD_TEARDOWN:
{
mrcp_session_descriptor_t *descriptor;
descriptor = mrcp_descriptor_generate_by_rtsp_response(
request,
response,
NULL,
session->rtsp_settings->resource_map,
session->mrcp_session->pool,
session->home);
if(!descriptor) {
return FALSE;
}
status = mrcp_session_answer(session->mrcp_session,descriptor);
break;
}
case RTSP_METHOD_ANNOUNCE:
{
mrcp_unirtsp_agent_t *agent = rtsp_client_object_get(rtsp_client);
const char *resource_name = mrcp_name_get_by_rtsp_name(
session->rtsp_settings->resource_map,
request->start_line.common.request_line.resource_name);
mrcp_unirtsp_on_announce_response(agent,session,response,resource_name);
break;
}
case RTSP_METHOD_DESCRIBE:
{
mrcp_unirtsp_agent_t *agent = rtsp_client_object_get(rtsp_client);
mrcp_unirtsp_on_resource_discover(agent,session,request,response);
break;
}
default:
break;
}
return status;
}
