return 0;
}
-/*! \brief Process SIP SDP and activate RTP channels---*/
+/*! \brief Process SIP SDP, select formats and activate RTP channels */
static int process_sdp(struct sip_pvt *p, struct sip_request *req)
{
- const char *m;
+ const char *m; /* SDP media offer */
const char *c;
const char *a;
char host[258];
char iabuf[INET_ADDRSTRLEN];
int len = -1;
- int portno = -1;
- int vportno = -1;
+ int portno = -1; /* Audio port */
+ int vportno = -1; /* Video port */
+
+ /* Peer capability is the capability in the SDP, non codec is RFC2833 DTMF (101) */
int peercapability, peernoncodeccapability;
- int vpeercapability=0, vpeernoncodeccapability=0;
+
+ int vpeercapability=0, vpeernoncodeccapability=0; /* Peer's video capabilities */
struct sockaddr_in sin;
const char *codecs;
struct hostent *hp;
int destiterator = 0;
int iterator;
int sendonly = 0;
- int x,y;
- int debug=sip_debug_test_pvt(p);
+ int x, y;
+ int debug = sip_debug_test_pvt(p);
struct ast_channel *bridgepeer = NULL;
if (!p->rtp) {