Revised seqno fix (bug #2887)
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@4281 f38db490-d61c-443f-a65b-d21fe96a405b
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1 changed files with 5 additions and 5 deletions
10
rtp.c
10
rtp.c
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@ -79,7 +79,7 @@ struct ast_rtp {
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unsigned int lastrxts;
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unsigned int lastividtimestamp;
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unsigned int lastovidtimestamp;
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unsigned int lasteventtimestamp;
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unsigned int lasteventseqn;
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int lasttxformat;
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int lastrxformat;
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int dtmfcount;
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@ -490,16 +490,16 @@ struct ast_frame *ast_rtp_read(struct ast_rtp *rtp)
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/* This is special in-band data that's not one of our codecs */
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if (rtpPT.code == AST_RTP_DTMF) {
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/* It's special -- rfc2833 process it */
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if (rtp->lasteventtimestamp <= timestamp) {
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if (rtp->lasteventseqn <= seqno || rtp->resp == 0 || (rtp->lasteventseqn >= 65530 && seqno <= 6)) {
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f = process_rfc2833(rtp, rtp->rawdata + AST_FRIENDLY_OFFSET + hdrlen, res - hdrlen);
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rtp->lasteventtimestamp = timestamp;
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rtp->lasteventseqn = seqno;
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} else f = NULL;
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if (f) return f; else return &null_frame;
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} else if (rtpPT.code == AST_RTP_CISCO_DTMF) {
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/* It's really special -- process it the Cisco way */
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if (rtp->lasteventtimestamp <= timestamp) {
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if (rtp->lasteventseqn <= seqno || rtp->resp == 0 || (rtp->lasteventseqn >= 65530 && seqno <= 6)) {
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f = process_cisco_dtmf(rtp, rtp->rawdata + AST_FRIENDLY_OFFSET + hdrlen, res - hdrlen);
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rtp->lasteventtimestamp = timestamp;
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rtp->lasteventseqn = seqno;
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} else f = NULL;
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if (f) return f; else return &null_frame;
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} else if (rtpPT.code == AST_RTP_CN) {
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