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save more space in SDP by not setting rtpmap for well known payload types

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This commit is contained in:
Simon Morlat 2011-03-17 10:55:39 +01:00
parent ddac754cae
commit a38580d3d4
1 changed files with 25 additions and 10 deletions
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35
coreapi/sal_eXosip2_sdp.c
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@ -161,19 +161,32 @@ static sdp_message_t *create_generic_sdp(const SalMediaDescription *desc)
}
static bool_t is_known_rtpmap(const PayloadType *pt){
switch(payload_type_get_number(pt)){
case 0:
case 8:
case 3:
case 34:
return TRUE;
}
return FALSE;
}
static void add_payload(sdp_message_t *msg, int line, const PayloadType *pt)
static void add_payload(sdp_message_t *msg, int line, const PayloadType *pt, bool_t strip_well_known_rtpmaps)
{
char attr[256];
sdp_message_m_payload_add (msg,line, int_2char (payload_type_get_number(pt)));
if (pt->channels>1)
snprintf (attr,sizeof(attr),"%i %s/%i/%i", payload_type_get_number(pt),
pt->mime_type, pt->clock_rate,pt->channels);
else
snprintf (attr,sizeof(attr),"%i %s/%i", payload_type_get_number(pt),
pt->mime_type, pt->clock_rate);
sdp_message_a_attribute_add (msg, line,
osip_strdup ("rtpmap"), osip_strdup(attr));
if (!strip_well_known_rtpmaps || !is_known_rtpmap(pt)){
if (pt->channels>1)
snprintf (attr,sizeof(attr),"%i %s/%i/%i", payload_type_get_number(pt),
pt->mime_type, pt->clock_rate,pt->channels);
else
snprintf (attr,sizeof(attr),"%i %s/%i", payload_type_get_number(pt),
pt->mime_type, pt->clock_rate);
sdp_message_a_attribute_add (msg, line,
osip_strdup ("rtpmap"), osip_strdup(attr));
}
if (pt->recv_fmtp != NULL)
{
@ -190,6 +203,7 @@ static void add_line(sdp_message_t *msg, int lineno, const SalStreamDescription
const char *addr;
const char *dir="sendrecv";
int port;
bool_t strip_well_known_rtpmaps;
switch (desc->type) {
case SalAudio:
@ -226,8 +240,9 @@ static void add_line(sdp_message_t *msg, int lineno, const SalStreamDescription
int_2char(desc->bandwidth));
if (desc->ptime>0) sdp_message_a_attribute_add(msg,lineno,osip_strdup("ptime"),
int_2char(desc->ptime));
strip_well_known_rtpmaps=ms_list_size(desc->payloads)>5;
for(elem=desc->payloads;elem!=NULL;elem=elem->next){
add_payload(msg, lineno, (PayloadType*)elem->data);
add_payload(msg, lineno, (PayloadType*)elem->data,strip_well_known_rtpmaps);
}
switch(desc->dir){
case SalStreamSendRecv: