static MSList *match_payloads(MSFactory *factory, const MSList *local, const MSList *remote, bool_t reading_response, bool_t one_matching_codec){
const MSList *e2,*e1;
MSList *res=NULL;
PayloadType *matched;
bool_t found_codec=FALSE;
for(e2=remote;e2!=NULL;e2=e2->next){
PayloadType *p2=(PayloadType*)e2->data;
matched=find_payload_type_best_match(factory, local, p2, remote, reading_response);
if (matched){
int local_number=payload_type_get_number(matched);
int remote_number=payload_type_get_number(p2);
if (one_matching_codec){
if (strcasecmp(matched->mime_type,"telephone-event")!=0){
if (found_codec){/* we have found a real codec already*/
continue; /*this codec won't be added*/
}else found_codec=TRUE;
}
}
if (p2->send_fmtp){
payload_type_append_send_fmtp(matched,p2->send_fmtp);
}
matched->flags|=PAYLOAD_TYPE_FLAG_CAN_RECV|PAYLOAD_TYPE_FLAG_CAN_SEND;
if (p2->flags & PAYLOAD_TYPE_RTCP_FEEDBACK_ENABLED) {
matched->flags |= PAYLOAD_TYPE_RTCP_FEEDBACK_ENABLED;
/* Negotiation of AVPF features (keep common features) */
matched->avpf.features &= p2->avpf.features;
matched->avpf.rpsi_compatibility = p2->avpf.rpsi_compatibility;
/* Take bigger AVPF trr interval */
if (p2->avpf.trr_interval < matched->avpf.trr_interval) {
matched->avpf.trr_interval = matched->avpf.trr_interval;
}
}
res=ms_list_append(res,matched);
/* we should use the remote numbering even when parsing a response */
payload_type_set_number(matched,remote_number);
payload_type_set_flag(matched, PAYLOAD_TYPE_FROZEN_NUMBER);
if (reading_response && remote_number!=local_number){
ms_warning("For payload type %s, proposed number was %i but the remote phone answered %i",
matched->mime_type, local_number, remote_number);
/*
We must add this payload type with our local numbering in order to be able to receive it.
Indeed despite we must sent with the remote numbering, we must be able to receive with
our local one.
*/
matched=payload_type_clone(matched);
payload_type_set_number(matched,local_number);
payload_type_set_flag(matched, PAYLOAD_TYPE_FROZEN_NUMBER);
res=ms_list_append(res,matched);
}
}else{
if (p2->channels>0)
ms_message("No match for %s/%i/%i",p2->mime_type,p2->clock_rate,p2->channels);
else ms_message("No match for %s/%i",p2->mime_type,p2->clock_rate);
}
}
if (reading_response){
/* add remaning local payload as CAN_RECV only so that if we are in front of a non-compliant equipment we are still able to decode the RTP stream*/
for(e1=local;e1!=NULL;e1=e1->next){
PayloadType *p1=(PayloadType*)e1->data;
bool_t found=FALSE;
for(e2=res;e2!=NULL;e2=e2->next){
PayloadType *p2=(PayloadType*)e2->data;
if (payload_type_get_number(p2)==payload_type_get_number(p1)){
found=TRUE;
break;
}
}
if (!found){
ms_message("Adding %s/%i for compatibility, just in case.",p1->mime_type,p1->clock_rate);
p1=payload_type_clone(p1);
payload_type_set_flag(p1, PAYLOAD_TYPE_FLAG_CAN_RECV);
payload_type_set_flag(p1, PAYLOAD_TYPE_FROZEN_NUMBER);
res=ms_list_append(res,p1);
}
}
}
return res;
}
static MSList *match_payloads(const MSList *local, const MSList *remote, bool_t reading_response, bool_t one_matching_codec){
const MSList *e2,*e1;
MSList *res=NULL;
PayloadType *matched;
bool_t found_codec=FALSE;
for(e2=remote;e2!=NULL;e2=e2->next){
PayloadType *p2=(PayloadType*)e2->data;
matched=find_payload_type_best_match(local,p2);
if (matched){
PayloadType *newp;
int local_number=payload_type_get_number(matched);
int remote_number=payload_type_get_number(p2);
if (one_matching_codec){
if (strcasecmp(matched->mime_type,"telephone-event")!=0){
if (found_codec){/* we have found a real codec already*/
continue; /*this codec won't be added*/
}else found_codec=TRUE;
}
}
newp=payload_type_clone(matched);
if (p2->send_fmtp)
payload_type_set_send_fmtp(newp,p2->send_fmtp);
newp->flags|=PAYLOAD_TYPE_FLAG_CAN_RECV|PAYLOAD_TYPE_FLAG_CAN_SEND;
res=ms_list_append(res,newp);
/* we should use the remote numbering even when parsing a response */
payload_type_set_number(newp,remote_number);
if (reading_response && remote_number!=local_number){
ms_warning("For payload type %s, proposed number was %i but the remote phone answered %i",
newp->mime_type, local_number, remote_number);
/*
We must add this payload type with our local numbering in order to be able to receive it.
Indeed despite we must sent with the remote numbering, we must be able to receive with
our local one.
*/
newp=payload_type_clone(newp);
payload_type_set_number(newp,local_number);
res=ms_list_append(res,newp);
}
}else{
ms_message("No match for %s/%i",p2->mime_type,p2->clock_rate);
}
}
if (reading_response){
/* add remaning local payload as CAN_RECV only so that if we are in front of a non-compliant equipment we are still able to decode the RTP stream*/
for(e1=local;e1!=NULL;e1=e1->next){
PayloadType *p1=(PayloadType*)e1->data;
bool_t found=FALSE;
for(e2=res;e2!=NULL;e2=e2->next){
PayloadType *p2=(PayloadType*)e2->data;
if (payload_type_get_number(p2)==payload_type_get_number(p1)){
found=TRUE;
break;
}
}
if (!found){
ms_message("Adding %s/%i for compatibility, just in case.",p1->mime_type,p1->clock_rate);
p1=payload_type_clone(p1);
p1->flags|=PAYLOAD_TYPE_FLAG_CAN_RECV;
res=ms_list_append(res,p1);
}
}
}
return res;
}
