static apt_bool_t mpf_rtp_stream_local_media_create(mpf_rtp_stream_t *rtp_stream, mpf_rtp_media_descriptor_t *local_media, mpf_rtp_media_descriptor_t *remote_media, mpf_stream_capabilities_t *capabilities)
{
apt_bool_t status = TRUE;
if(!local_media) {
/* local media is not specified, create the default one */
local_media = mpf_rtp_media_descriptor_alloc(rtp_stream->pool);
local_media->state = MPF_MEDIA_ENABLED;
local_media->direction = STREAM_DIRECTION_DUPLEX;
}
if(remote_media) {
local_media->id = remote_media->id;
}
if(local_media->ip.length == 0) {
local_media->ip = rtp_stream->config->ip;
local_media->ext_ip = rtp_stream->config->ext_ip;
}
if(local_media->port == 0) {
if(mpf_rtp_socket_pair_create(rtp_stream,local_media,FALSE) == TRUE) {
/* RTP port management */
mpf_rtp_config_t *rtp_config = rtp_stream->config;
apr_port_t first_port_in_search = rtp_config->rtp_port_cur;
apt_bool_t is_port_ok = FALSE;
do {
local_media->port = rtp_config->rtp_port_cur;
rtp_config->rtp_port_cur += 2;
if(rtp_config->rtp_port_cur == rtp_config->rtp_port_max) {
rtp_config->rtp_port_cur = rtp_config->rtp_port_min;
}
if(mpf_rtp_socket_pair_bind(rtp_stream,local_media) == TRUE) {
is_port_ok = TRUE;
break;
}
} while(first_port_in_search != rtp_config->rtp_port_cur);
if(is_port_ok == FALSE) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Find Free RTP Port %s:[%hu,%hu]",
rtp_config->ip.buf,
rtp_config->rtp_port_min,
rtp_config->rtp_port_max);
mpf_rtp_socket_pair_close(rtp_stream);
status = FALSE;
}
}
else {
status = FALSE;
}
}
else if(mpf_rtp_socket_pair_create(rtp_stream,local_media,TRUE) == FALSE) {
status = FALSE;
}
if(status == FALSE) {
local_media->state = MPF_MEDIA_DISABLED;
}
if(rtp_stream->settings->ptime) {
local_media->ptime = rtp_stream->settings->ptime;
}
if(mpf_codec_list_is_empty(&local_media->codec_list) == TRUE) {
if(mpf_codec_list_is_empty(&rtp_stream->settings->codec_list) == TRUE) {
mpf_codec_manager_codec_list_get(
rtp_stream->base->termination->codec_manager,
&local_media->codec_list,
rtp_stream->pool);
}
else {
mpf_codec_list_copy(&local_media->codec_list,
&rtp_stream->settings->codec_list,
rtp_stream->pool);
}
}
if(capabilities) {
if(mpf_codec_list_match(&local_media->codec_list,&capabilities->codecs) == FALSE) {
apt_log(APT_LOG_MARK,APT_PRIO_WARNING,"Failed to Match Codec List %s:%hu",
local_media->ip.buf,
local_media->port);
local_media->state = MPF_MEDIA_DISABLED;
status = FALSE;
}
}
rtp_stream->local_media = local_media;
return status;
}
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;
}
