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Merge DTMF fixes (bug #95) 

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@1336 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Mark Spencer 2003-08-14 21:55:31 +00:00
parent 28f69488c6
commit ae886f5c2b
1 changed files with 21 additions and 0 deletions
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21
rtp.c
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@ -68,6 +68,7 @@ struct ast_rtp {
int lasttxformat;
int lastrxformat;
int dtmfcount;
unsigned int dtmfduration;
int nat;
struct sockaddr_in us;
struct sockaddr_in them;
@ -169,6 +170,7 @@ static struct ast_frame *send_dtmf(struct ast_rtp *rtp)
rtp->f.mallocd = 0;
rtp->f.src = "RTP";
rtp->resp = 0;
rtp->dtmfduration = 0;
return &rtp->f;
}
@ -203,10 +205,17 @@ static struct ast_frame *process_cisco_dtmf(struct ast_rtp *rtp, unsigned char *
static struct ast_frame *process_rfc2833(struct ast_rtp *rtp, unsigned char *data, int len)
{
unsigned int event;
unsigned int event_end;
unsigned int duration;
char resp = 0;
struct ast_frame *f = NULL;
event = ntohl(*((unsigned int *)(data)));
event >>= 24;
event_end = ntohl(*((unsigned int *)(data)));
event_end <<= 8;
event_end >>= 24;
duration = ntohl(*((unsigned int *)(data)));
duration &= 0xFFFF;
#if 0
printf("Event: %08x (len = %d)\n", event, len);
#endif
@ -222,8 +231,20 @@ static struct ast_frame *process_rfc2833(struct ast_rtp *rtp, unsigned char *dat
if (rtp->resp && (rtp->resp != resp)) {
f = send_dtmf(rtp);
}
else if(event_end & 0x80)
{
f = send_dtmf(rtp);
resp = 0;
duration = 0;
}
else if(rtp->dtmfduration && (duration < rtp->dtmfduration))
{
f = send_dtmf(rtp);
}
rtp->resp = resp;
rtp->dtmfcount = dtmftimeout;
rtp->dtmfduration = duration;
return f;
}