void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md){
SalMediaDescription *oldmd=call->resultdesc;
if (lc->ringstream!=NULL){
ring_stop(lc->ringstream);
lc->ringstream=NULL;
}
if (new_md!=NULL){
sal_media_description_ref(new_md);
call->media_pending=FALSE;
}else{
call->media_pending=TRUE;
}
call->resultdesc=new_md;
if (call->audiostream && call->audiostream->ticker){
/* we already started media: check if we really need to restart it*/
if (oldmd){
if (!media_parameters_changed(call,oldmd,new_md) && !call->playing_ringbacktone){
sal_media_description_unref(oldmd);
if (call->all_muted){
ms_message("Early media finished, unmuting inputs...");
/*we were in early media, now we want to enable real media */
linphone_call_enable_camera (call,linphone_call_camera_enabled (call));
if (call->audiostream)
linphone_core_mute_mic (lc, linphone_core_is_mic_muted(lc));
#ifdef VIDEO_ENABLED
if (call->videostream && call->camera_active)
video_stream_change_camera(call->videostream,lc->video_conf.device );
#endif
}
ms_message("No need to restart streams, SDP is unchanged.");
return;
}else{
ms_message("Media descriptions are different, need to restart the streams.");
}
}
linphone_call_stop_media_streams (call);
linphone_call_init_media_streams (call);
}
if (oldmd)
sal_media_description_unref(oldmd);
if (new_md) {
bool_t all_muted=FALSE;
bool_t send_ringbacktone=FALSE;
if (call->audiostream==NULL){
/*this happens after pausing the call locally. The streams is destroyed and then we wait the 200Ok to recreate it*/
linphone_call_init_media_streams (call);
}
if (call->state==LinphoneCallIncomingEarlyMedia && linphone_core_get_remote_ringback_tone (lc)!=NULL){
send_ringbacktone=TRUE;
}
if (call->state==LinphoneCallIncomingEarlyMedia ||
(call->state==LinphoneCallOutgoingEarlyMedia && !call->params.real_early_media)){
all_muted=TRUE;
}
linphone_call_start_media_streams(call,all_muted,send_ringbacktone);
}
}
/**
* Merge a call into a conference.
* @param lc the linphone core
* @param call an established call, either in LinphoneCallStreamsRunning or LinphoneCallPaused state.
*
* If this is the first call that enters the conference, the virtual conference will be created automatically.
* If the local user was actively part of the call (ie not in paused state), then the local user is automatically entered into the conference.
* If the call was in paused state, then it is automatically resumed when entering into the conference.
*
* @returns 0 if successful, -1 otherwise.
**/
int linphone_core_add_to_conference(LinphoneCore *lc, LinphoneCall *call){
LinphoneConference *conf=&lc->conf_ctx;
if (call->current_params.in_conference){
ms_error("Already in conference");
return -1;
}
conference_check_init(&lc->conf_ctx, lp_config_get_int(lc->config, "sound","conference_rate",16000));
if (call->state==LinphoneCallPaused){
call->params.in_conference=TRUE;
call->params.has_video=FALSE;
linphone_core_resume_call(lc,call);
}else if (call->state==LinphoneCallStreamsRunning){
LinphoneCallParams *params=linphone_call_params_copy(linphone_call_get_current_params(call));
params->in_conference=TRUE;
params->has_video=FALSE;
if (call->audiostream || call->videostream){
linphone_call_stop_media_streams(call); /*free the audio & video local resources*/
linphone_call_init_media_streams(call);
}
if (call==lc->current_call){
lc->current_call=NULL;
}
/*this will trigger a reINVITE that will later redraw the streams */
/*FIXME probably a bit too much to just redraw streams !*/
linphone_core_update_call(lc,call,params);
linphone_call_params_destroy(params);
add_local_endpoint(conf,lc);
}else{
ms_error("Call is in state %s, it cannot be added to the conference.",linphone_call_state_to_string(call->state));
return -1;
}
return 0;
}
void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md){
SalMediaDescription *oldmd=call->resultdesc;
bool_t all_muted=FALSE;
bool_t send_ringbacktone=FALSE;
linphone_core_stop_ringing(lc);
if (!new_md) {
ms_error("linphone_core_update_streams() called with null media description");
return;
}
if (call->biggestdesc==NULL || new_md->n_total_streams>call->biggestdesc->n_total_streams){
/*we have been offered and now are ready to proceed, or we added a new stream*/
/*store the media description to remember the mapping of calls*/
if (call->biggestdesc){
sal_media_description_unref(call->biggestdesc);
call->biggestdesc=NULL;
}
if (sal_call_is_offerer(call->op))
call->biggestdesc=sal_media_description_ref(call->localdesc);
else
call->biggestdesc=sal_media_description_ref(sal_call_get_remote_media_description(call->op));
}
sal_media_description_ref(new_md);
call->expect_media_in_ack=FALSE;
call->resultdesc=new_md;
if ((call->audiostream && call->audiostream->ms.ticker) || (call->videostream && call->videostream->ms.ticker)){
/* we already started media: check if we really need to restart it*/
if (oldmd){
int md_changed = media_parameters_changed(call, oldmd, new_md);
if ((md_changed & SAL_MEDIA_DESCRIPTION_CODEC_CHANGED) || call->playing_ringbacktone) {
ms_message("Media descriptions are different, need to restart the streams.");
} else {
if (md_changed == SAL_MEDIA_DESCRIPTION_UNCHANGED) {
if (call->all_muted){
ms_message("Early media finished, unmuting inputs...");
/*we were in early media, now we want to enable real media */
linphone_call_enable_camera (call,linphone_call_camera_enabled (call));
if (call->audiostream)
linphone_core_enable_mic(lc, linphone_core_mic_enabled(lc));
#ifdef VIDEO_ENABLED
if (call->videostream && call->camera_enabled)
video_stream_change_camera(call->videostream,lc->video_conf.device );
#endif
}
ms_message("No need to restart streams, SDP is unchanged.");
goto end;
}else {
if (md_changed & SAL_MEDIA_DESCRIPTION_NETWORK_CHANGED) {
ms_message("Network parameters have changed, update them.");
linphone_core_update_streams_destinations(lc, call, oldmd, new_md);
}
if (md_changed & SAL_MEDIA_DESCRIPTION_CRYPTO_CHANGED) {
ms_message("Crypto parameters have changed, update them.");
linphone_call_update_crypto_parameters(call, oldmd, new_md);
}
goto end;
}
}
}
linphone_call_stop_media_streams (call);
linphone_call_init_media_streams (call);
}
if (call->audiostream==NULL){
/*this happens after pausing the call locally. The streams are destroyed and then we wait the 200Ok to recreate them*/
linphone_call_init_media_streams (call);
}
if (call->state==LinphoneCallIncomingEarlyMedia && linphone_core_get_remote_ringback_tone (lc)!=NULL){
send_ringbacktone=TRUE;
}
if (call->state==LinphoneCallIncomingEarlyMedia ||
(call->state==LinphoneCallOutgoingEarlyMedia && !call->params.real_early_media)){
all_muted=TRUE;
}
linphone_call_start_media_streams(call,all_muted,send_ringbacktone);
if (call->state==LinphoneCallPausing && call->paused_by_app && ms_list_size(lc->calls)==1){
linphone_core_play_named_tone(lc,LinphoneToneCallOnHold);
}
end:
if (oldmd)
sal_media_description_unref(oldmd);
}
