diff --git a/coreapi/linphonecall.c b/coreapi/linphonecall.c
index a8838af10ea27628951a5bdf14fcc2a94b13dd5e..8e92103d95c662104ed346a95added62d644da70 100644
--- a/coreapi/linphonecall.c
+++ b/coreapi/linphonecall.c
@@ -59,7 +59,7 @@ static MSList *make_codec_list(LinphoneCore *lc, const MSList *codecs, int bandw
return l;
}
-SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call){
+static SalMediaDescription *_create_local_media_description(LinphoneCore *lc, LinphoneCall *call, unsigned int session_id, unsigned int session_ver){
MSList *l;
PayloadType *pt;
const char *me=linphone_core_get_identity(lc);
@@ -67,6 +67,8 @@ SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCa
const char *username=linphone_address_get_username (addr);
SalMediaDescription *md=sal_media_description_new();
+ md->session_id=session_id;
+ md->session_ver=session_ver;
md->nstreams=1;
strncpy(md->addr,call->localip,sizeof(md->addr));
strncpy(md->username,username,sizeof(md->username));
@@ -96,6 +98,22 @@ SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCa
return md;
}
+void update_local_media_description(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription **md){
+ if (*md == NULL) {
+ *md = _create_local_media_description(lc,call,0,0);
+ } else {
+ unsigned int id = (*md)->session_id;
+ unsigned int ver = (*md)->session_ver+1;
+ sal_media_description_unref(*md);
+ *md = _create_local_media_description(lc,call,id,ver);
+ }
+}
+
+SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call){
+ unsigned int id=rand();
+ return _create_local_media_description(lc,call,id,id);
+}
+
static int find_port_offset(LinphoneCore *lc){
int offset;
MSList *elem;
diff --git a/coreapi/linphonecore.c b/coreapi/linphonecore.c
index 7afdf85fa7f27af1247e3518d481544fe1bac10a..ad693a824f25f9529cb75b6f70542f5d163fdfd6 100644
--- a/coreapi/linphonecore.c
+++ b/coreapi/linphonecore.c
@@ -2196,10 +2196,8 @@ bool_t linphone_core_inc_invite_pending(LinphoneCore*lc){
int linphone_core_update_call(LinphoneCore *lc, LinphoneCall *call, const LinphoneCallParams *params){
int err=0;
if (params!=NULL){
- if (call->localdesc)
- sal_media_description_unref(call->localdesc);
call->params=*params;
- call->localdesc=create_local_media_description (lc,call);
+ update_local_media_description(lc,call,&call->localdesc);
call->camera_active=params->has_video;
if (lc->vtable.display_status)
lc->vtable.display_status(lc,_("Modifying call parameters..."));
diff --git a/coreapi/offeranswer.c b/coreapi/offeranswer.c
index 3b8948674fe38b7976e96c4364078dc198b349ad..cbc88c2c14c5a79b35ac3b18442b0e7d366d1fbe 100644
--- a/coreapi/offeranswer.c
+++ b/coreapi/offeranswer.c
@@ -218,22 +218,30 @@ int offer_answer_initiate_outgoing(const SalMediaDescription *local_offer,
int offer_answer_initiate_incoming(const SalMediaDescription *local_capabilities,
const SalMediaDescription *remote_offer,
SalMediaDescription *result, bool_t one_matching_codec){
- int i,j;
+ int i;
const SalStreamDescription *ls,*rs;
- for(i=0,j=0;i<remote_offer->nstreams;++i){
+ for(i=0;i<remote_offer->nstreams;++i){
rs=&remote_offer->streams[i];
ms_message("Processing for stream %i",i);
ls=sal_media_description_find_stream((SalMediaDescription*)local_capabilities,rs->proto,rs->type);
if (ls){
- initiate_incoming(ls,rs,&result->streams[j],one_matching_codec);
- ++j;
+ initiate_incoming(ls,rs,&result->streams[i],one_matching_codec);
+ } else {
+ /* create an inactive stream for the answer, as there where no matching stream a local capability */
+ result->streams[i].dir=SalStreamInactive;
+ result->streams[i].port=0;
+ result->streams[i].type=rs->type;
+ if (rs->type==SalOther){
+ strncpy(result->streams[i].typeother,rs->typeother,sizeof(rs->typeother)-1);
+ }
}
}
- result->nstreams=j;
+ result->nstreams=i;
strcpy(result->username, local_capabilities->username);
strcpy(result->addr,local_capabilities->addr);
result->bandwidth=local_capabilities->bandwidth;
+ result->session_ver=local_capabilities->session_ver;
+ result->session_id=local_capabilities->session_id;
return 0;
}
-
diff --git a/coreapi/private.h b/coreapi/private.h
index 87605b15c0c2f596a045f1441d128cfb7f17b0e1..17754c289356577c0be1082e6e6d2ca3dc53650f 100644
--- a/coreapi/private.h
+++ b/coreapi/private.h
@@ -445,6 +445,7 @@ int linphone_core_get_calls_nb(const LinphoneCore *lc);
void linphone_core_set_state(LinphoneCore *lc, LinphoneGlobalState gstate, const char *message);
SalMediaDescription *create_local_media_description(LinphoneCore *lc, LinphoneCall *call);
+void update_local_media_description(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription **md);
void linphone_core_update_streams(LinphoneCore *lc, LinphoneCall *call, SalMediaDescription *new_md);
diff --git a/coreapi/sal.h b/coreapi/sal.h
index 24cc8582ab9c06bf866aacf3dab528512bfc4915..09ff05f8115b90d1351da6c61608a39743d4220f 100644
--- a/coreapi/sal.h
+++ b/coreapi/sal.h
@@ -103,6 +103,7 @@ typedef struct SalEndpointCandidate{
typedef struct SalStreamDescription{
SalMediaProto proto;
SalStreamType type;
+ char typeother[32];
char addr[64];
int port;
MSList *payloads; //<list of PayloadType
@@ -120,6 +121,8 @@ typedef struct SalMediaDescription{
char username[64];
int nstreams;
int bandwidth;
+ unsigned int session_ver;
+ unsigned int session_id;
SalStreamDescription streams[SAL_MEDIA_DESCRIPTION_MAX_STREAMS];
} SalMediaDescription;
diff --git a/coreapi/sal_eXosip2_sdp.c b/coreapi/sal_eXosip2_sdp.c
index a9f098ed24b99f9d3ad94aa5351d6dc727e99775..fd6d959d5f00a74626345f64302b0439f4d8869e 100644
--- a/coreapi/sal_eXosip2_sdp.c
+++ b/coreapi/sal_eXosip2_sdp.c
@@ -127,14 +127,18 @@ static sdp_message_t *create_generic_sdp(const SalMediaDescription *desc)
{
sdp_message_t *local;
int inet6;
-
+ char sessid[16];
+ char sessver[16];
+
+ snprintf(sessid,16,"%i",desc->session_id);
+ snprintf(sessver,16,"%i",desc->session_ver);
sdp_message_init (&local);
if (strchr(desc->addr,':')!=NULL){
inet6=1;
}else inet6=0;
sdp_message_v_version_set (local, osip_strdup ("0"));
sdp_message_o_origin_set (local, osip_strdup (desc->username),
- osip_strdup ("123456"), osip_strdup ("654321"),
+ osip_strdup (sessid), osip_strdup (sessver),
osip_strdup ("IN"), inet6 ? osip_strdup("IP6") : osip_strdup ("IP4"),
osip_strdup (desc->addr));
sdp_message_s_name_set (local, osip_strdup ("A conversation"));
@@ -181,11 +185,23 @@ static void add_payload(sdp_message_t *msg, int line, const PayloadType *pt)
static void add_line(sdp_message_t *msg, int lineno, const SalStreamDescription *desc){
- const char *mt=desc->type==SalAudio ? "audio" : "video";
+ const char *mt;
const MSList *elem;
const char *addr;
const char *dir="sendrecv";
int port;
+
+ switch (desc->type) {
+ case SalAudio:
+ mt="audio";
+ break;
+ case SalVideo:
+ mt="video";
+ break;
+ case SalOther:
+ mt=desc->typeother;
+ break;
+ }
if (desc->candidates[0].addr[0]!='\0'){
addr=desc->candidates[0].addr;
port=desc->candidates[0].port;
@@ -310,7 +326,13 @@ int sdp_to_media_description(sdp_message_t *msg, SalMediaDescription *desc){
stream->type=SalAudio;
}else if (strcasecmp("video", mtype) == 0){
stream->type=SalVideo;
- }else stream->type=SalOther;
+ }else {
+ stream->type=SalOther;
+ if (stream->typeother){
+ ms_free(stream->typeother);
+ }
+ strncpy(stream->typeother,mtype,sizeof(stream->typeother)-1);
+ }
for(j=0;(sbw=sdp_message_bandwidth_get(msg,i,j))!=NULL;++j){
if (strcasecmp(sbw->b_bwtype,"AS")==0) stream->bandwidth=atoi(sbw->b_bandwidth);
}