/** Generate RTSP transport */
static apt_bool_t rtsp_transport_generate(rtsp_transport_t *transport, apt_text_stream_t *text_stream)
{
const apt_str_t *protocol = apt_string_table_str_get(rtsp_transport_string_table,RTSP_TRANSPORT_COUNT,transport->protocol);
const apt_str_t *profile = apt_string_table_str_get(rtsp_profile_string_table,RTSP_PROFILE_COUNT,transport->profile);
if(!protocol || !profile) {
return FALSE;
}
apt_string_value_generate(protocol,text_stream);
apt_text_char_insert(text_stream,'/');
apt_string_value_generate(profile,text_stream);
if(transport->delivery != RTSP_DELIVERY_NONE) {
const apt_str_t *delivery = NULL;
rtsp_transport_attrib_e attrib = RTSP_TRANSPORT_ATTRIB_NONE;
if(transport->delivery == RTSP_DELIVERY_UNICAST) {
attrib = RTSP_TRANSPORT_ATTRIB_UNICAST;
}
else if(transport->delivery == RTSP_DELIVERY_MULTICAST) {
attrib = RTSP_TRANSPORT_ATTRIB_MULTICAST;
}
delivery = apt_string_table_str_get(rtsp_transport_attrib_string_table,RTSP_TRANSPORT_ATTRIB_COUNT,attrib);
if(!delivery) {
return FALSE;
}
apt_text_char_insert(text_stream,';');
apt_string_value_generate(delivery,text_stream);
}
if(rtsp_port_range_is_valid(&transport->client_port_range) == TRUE) {
apt_text_char_insert(text_stream,';');
rtsp_port_range_generate(RTSP_TRANSPORT_ATTRIB_CLIENT_PORT,&transport->client_port_range,text_stream);
}
if(rtsp_port_range_is_valid(&transport->server_port_range) == TRUE) {
apt_text_char_insert(text_stream,';');
rtsp_port_range_generate(RTSP_TRANSPORT_ATTRIB_SERVER_PORT,&transport->server_port_range,text_stream);
}
if(transport->mode.length) {
const apt_str_t *str;
str = apt_string_table_str_get(rtsp_transport_attrib_string_table,RTSP_TRANSPORT_ATTRIB_COUNT,RTSP_TRANSPORT_ATTRIB_MODE);
if(str) {
apt_text_char_insert(text_stream,';');
apt_string_value_generate(str,text_stream);
apt_text_char_insert(text_stream,'=');
apt_string_value_generate(&transport->mode,text_stream);
}
}
return TRUE;
}
/** Generate RTSP header */
RTSP_DECLARE(apt_bool_t) rtsp_header_generate(rtsp_header_t *header, apt_text_stream_t *text_stream)
{
const apt_str_t *name;
apr_size_t i;
rtsp_header_property_t property_set;
property_set = header->property_set;
for(i=0; i<RTSP_HEADER_FIELD_COUNT && property_set != 0; i++) {
if(rtsp_header_property_check(&property_set,i) == TRUE) {
name = apt_string_table_str_get(rtsp_header_string_table,RTSP_HEADER_FIELD_COUNT,i);
if(!name) {
continue;
}
apt_text_header_name_generate(name,text_stream);
rtsp_header_field_generate(header,i,text_stream);
apt_text_eol_insert(text_stream);
rtsp_header_property_remove(&property_set,i);
}
}
apt_text_eol_insert(text_stream);
return TRUE;
}
/** Generate RTSP header field */
static apr_size_t rtsp_header_field_generate(rtsp_header_t *header, apr_size_t id, apt_text_stream_t *value)
{
switch(id) {
case RTSP_HEADER_FIELD_CSEQ:
apt_size_value_generate(header->cseq,value);
break;
case RTSP_HEADER_FIELD_TRANSPORT:
rtsp_transport_generate(&header->transport,value);
break;
case RTSP_HEADER_FIELD_SESSION_ID:
apt_string_value_generate(&header->session_id,value);
break;
case RTSP_HEADER_FIELD_RTP_INFO:
apt_string_value_generate(&header->rtp_info,value);
break;
case RTSP_HEADER_FIELD_CONTENT_TYPE:
{
const apt_str_t *name = apt_string_table_str_get(rtsp_content_type_string_table,RTSP_CONTENT_TYPE_COUNT,header->content_type);
if(name) {
apt_string_value_generate(name,value);
}
break;
}
case RTSP_HEADER_FIELD_CONTENT_LENGTH:
apt_size_value_generate(header->content_length,value);
break;
default:
break;
}
return TRUE;
}
MRCP_DECLARE(apt_bool_t) mrcp_header_generate(mrcp_header_accessor_t *accessor, apt_text_stream_t *text_stream)
{
const apt_str_t *name;
apr_size_t i;
mrcp_header_property_t property_set;
if(!accessor->vtable) {
return FALSE;
}
property_set = accessor->property_set;
for(i=0; i<accessor->vtable->field_count && property_set != 0; i++) {
if(mrcp_header_property_check(&property_set,i) == TRUE) {
name = apt_string_table_str_get(accessor->vtable->field_table,accessor->vtable->field_count,i);
if(!name) {
continue;
}
apt_text_header_name_generate(name,text_stream);
if(accessor->empty_values == FALSE) {
accessor->vtable->generate_field(accessor,i,text_stream);
}
apt_text_eol_insert(text_stream);
mrcp_header_property_remove(&property_set,i);
}
}
return TRUE;
}
MRCP_DECLARE(apt_bool_t) mrcp_header_generate(mrcp_header_accessor_t *accessor, apt_text_stream_t *text_stream)
{
const apt_str_t *name;
apr_size_t i,j;
char prop;
if(!accessor->vtable) {
return FALSE;
}
for(i=0, j=0; i<accessor->vtable->field_count && j<accessor->counter; i++) {
prop = accessor->properties[i];
if((prop & MRCP_HEADER_FIELD_NAME) == MRCP_HEADER_FIELD_NAME) {
j++;
name = apt_string_table_str_get(accessor->vtable->field_table,accessor->vtable->field_count,i);
if(!name) continue;
apt_text_header_name_generate(name,text_stream);
if((prop & MRCP_HEADER_FIELD_VALUE) == MRCP_HEADER_FIELD_VALUE) {
accessor->vtable->generate_field(accessor,i,text_stream);
}
apt_text_eol_insert(text_stream);
}
}
return TRUE;
}
MRCP_DECLARE(const apt_str_t*) mrcp_recog_completion_cause_get(mrcp_recog_completion_cause_e completion_cause, mrcp_version_e version)
{
const apt_str_table_item_t *table = v2_completion_cause_string_table;
if(version == MRCP_VERSION_1) {
table = v1_completion_cause_string_table;
}
return apt_string_table_str_get(table,RECOGNIZER_COMPLETION_CAUSE_COUNT,completion_cause);
}
static apt_bool_t apt_string_table_value_pgenerate(const apt_str_table_item_t *string_table, apr_size_t count, apr_size_t id, apt_str_t *str, apr_pool_t *pool)
{
const apt_str_t *name = apt_string_table_str_get(string_table,count,id);
if(!name) {
return FALSE;
}
apt_string_copy(str,name,pool);
return TRUE;
}
/** Generate MRCP request-state used in MRCP response and event */
static apt_bool_t mrcp_request_state_generate(mrcp_request_state_e request_state, apt_text_stream_t *stream)
{
const apt_str_t *name;
name = apt_string_table_str_get(mrcp_request_state_string_table,MRCP_REQUEST_STATE_COUNT,request_state);
if(request_state < MRCP_REQUEST_STATE_COUNT) {
memcpy(stream->pos,name->buf,name->length);
stream->pos += name->length;
}
return TRUE;
}
static apt_bool_t apt_string_table_value_generate(const apt_str_table_item_t *string_table, apr_size_t count, apr_size_t id, apt_text_stream_t *stream)
{
const apt_str_t *name = apt_string_table_str_get(string_table,count,id);
if(!name) {
return FALSE;
}
memcpy(stream->pos,name->buf,name->length);
stream->pos += name->length;
return TRUE;
}
/** Generate RTSP transport port range */
static apt_bool_t rtsp_port_range_generate(rtsp_transport_attrib_e attrib, const rtsp_port_range_t *port_range, apt_text_stream_t *text_stream)
{
const apt_str_t *str;
str = apt_string_table_str_get(rtsp_transport_attrib_string_table,RTSP_TRANSPORT_ATTRIB_COUNT,attrib);
if(!str) {
return FALSE;
}
apt_string_value_generate(str,text_stream);
apt_text_char_insert(text_stream,'=');
apt_size_value_generate(port_range->min,text_stream);
if(port_range->max > port_range->min) {
apt_text_char_insert(text_stream,'-');
apt_size_value_generate(port_range->max,text_stream);
}
return TRUE;
}
/** Generate completion-cause */
MRCP_DECLARE(apt_bool_t) mrcp_completion_cause_generate(const apt_str_table_item_t table[], apr_size_t size, apr_size_t cause, apt_text_stream_t *stream)
{
int length;
const apt_str_t *name = apt_string_table_str_get(table,size,cause);
if(!name) {
return FALSE;
}
length = sprintf(stream->pos,"%03"APR_SIZE_T_FMT" ",cause);
if(length <= 0) {
return FALSE;
}
stream->pos += length;
memcpy(stream->pos,name->buf,name->length);
stream->pos += name->length;
return TRUE;
}
/** Generate completion-cause */
APT_DECLARE(apt_bool_t) apt_completion_cause_generate(const apt_str_table_item_t table[], apr_size_t size, apr_size_t cause, apt_str_t *str, apr_pool_t *pool)
{
char buf[256];
int length;
const apt_str_t *name = apt_string_table_str_get(table,size,cause);
if(!name) {
return FALSE;
}
length = sprintf(buf,"%03"APR_SIZE_T_FMT" ",cause);
if(length <= 0) {
return FALSE;
}
memcpy(buf+length,name->buf,name->length);
apt_string_assign_n(str,buf,name->length + length,pool);
return TRUE;
}
MPF_DECLARE(const apt_str_t*) mpf_rtp_direction_str_get(mpf_stream_direction_e direction)
{
mpf_rtp_attrib_e attrib_id = RTP_ATTRIB_UNKNOWN;
switch(direction) {
case STREAM_DIRECTION_SEND:
attrib_id = RTP_ATTRIB_SENDONLY;
break;
case STREAM_DIRECTION_RECEIVE:
attrib_id = RTP_ATTRIB_RECVONLY;
break;
case STREAM_DIRECTION_DUPLEX:
attrib_id = RTP_ATTRIB_SENDRECV;
break;
default:
break;
}
return apt_string_table_str_get(mpf_rtp_attrib_table,RTP_ATTRIB_COUNT,attrib_id);
}
/** Generate completion-cause */
APT_DECLARE(apt_bool_t) apt_completion_cause_generate(const apt_str_table_item_t table[], apr_size_t size, apr_size_t cause, apt_str_t *str, apr_pool_t *pool)
{
const apt_str_t *name = apt_string_table_str_get(table,size,cause);
if(!name) {
return FALSE;
}
/* 3 digits + 1 space + name->length */
str->length = 4 + name->length;
str->buf = apr_palloc(pool,str->length + 1);
if(sprintf(str->buf,"%03"APR_SIZE_T_FMT" ",cause) != 4) {
return FALSE;
}
memcpy(str->buf+4,name->buf,name->length);
str->buf[str->length] = '\0';
return TRUE;
}
/** Generate MRCPv2 recognizer header */
static apt_bool_t mrcp_v2_recog_header_generate(mrcp_header_accessor_t *accessor, apr_size_t id, apt_text_stream_t *value)
{
mrcp_recog_header_t *recog_header = accessor->data;
if(id == RECOGNIZER_HEADER_CONFIDENCE_THRESHOLD) {
return apt_float_value_generate(recog_header->confidence_threshold,value);
}
else if(id == RECOGNIZER_HEADER_SENSITIVITY_LEVEL) {
return apt_float_value_generate(recog_header->sensitivity_level,value);
}
else if(id == RECOGNIZER_HEADER_SPEED_VS_ACCURACY) {
return apt_float_value_generate(recog_header->speed_vs_accuracy,value);
}
else if(id == RECOGNIZER_HEADER_COMPLETION_CAUSE) {
const apt_str_t *name = apt_string_table_str_get(
v2_completion_cause_string_table,
RECOGNIZER_COMPLETION_CAUSE_COUNT,
recog_header->completion_cause);
return mrcp_completion_cause_generate(recog_header->completion_cause,name,value);
}
return mrcp_recog_header_generate(recog_header,id,value);
}
MPF_DECLARE(const apt_str_t*) mpf_rtp_attrib_str_get(mpf_rtp_attrib_e attrib_id)
{
return apt_string_table_str_get(mpf_rtp_attrib_table,RTP_ATTRIB_COUNT,attrib_id);
}
/** Get resource name associated with specified resource id */
MRCP_DECLARE(const apt_str_t*) mrcp_resource_name_get(mrcp_resource_factory_t *resource_factory, mrcp_resource_id resource_id)
{
return apt_string_table_str_get(resource_factory->string_table,resource_factory->resource_count,resource_id);
}
MRCP_DECLARE(const apt_str_t*) mrcp_synth_completion_cause_get(mrcp_synth_completion_cause_e completion_cause, mrcp_version_e version)
{
return apt_string_table_str_get(completion_cause_string_table,SYNTHESIZER_COMPLETION_CAUSE_COUNT,completion_cause);
}
MRCP_DECLARE(const apt_str_t*) mrcp_connection_type_get(mrcp_connection_type_e connection_type)
{
return apt_string_table_str_get(mrcp_connection_value_table,MRCP_CONNECTION_TYPE_COUNT,connection_type);
}
MRCP_DECLARE(const apt_str_t*) mrcp_setup_type_get(mrcp_setup_type_e setup_type)
{
return apt_string_table_str_get(mrcp_setup_value_table,MRCP_SETUP_TYPE_COUNT,setup_type);
}
MRCP_DECLARE(const apt_str_t*) mrcp_attrib_str_get(mrcp_attrib_e attrib_id)
{
return apt_string_table_str_get(mrcp_attrib_table,MRCP_ATTRIB_COUNT,attrib_id);
}
MRCP_DECLARE(const apt_str_t*) mrcp_proto_get(mrcp_proto_type_e proto)
{
return apt_string_table_str_get(mrcp_proto_type_table,MRCP_PROTO_COUNT,proto);
}
MRCP_DECLARE(const apt_str_t*) mrcp_recorder_completion_cause_get(
mrcp_recorder_completion_cause_e completion_cause,
mrcp_version_e version)
{
return apt_string_table_str_get(completion_cause_string_table,RECORDER_COMPLETION_CAUSE_COUNT,completion_cause);
}