[svn-commits] file: branch 1.6.2 r194213 - in /branches/1.6.2: ./ main/rtp.c
SVN commits to the Digium repositories
svn-commits at lists.digium.com
Wed May 13 08:42:29 CDT 2009
Author: file
Date: Wed May 13 08:42:22 2009
New Revision: 194213
URL: http://svn.asterisk.org/svn-view/asterisk?view=rev&rev=194213
Log:
Merged revisions 194209 via svnmerge from
https://origsvn.digium.com/svn/asterisk/trunk
................
r194209 | file | 2009-05-13 10:39:10 -0300 (Wed, 13 May 2009) | 18 lines
Merged revisions 194208 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4
........
r194208 | file | 2009-05-13 10:38:01 -0300 (Wed, 13 May 2009) | 11 lines
Fix RFC2833 issues with DTMF getting duplicated and with duration wrapping over.
(closes issue #14815)
Reported by: geoff2010
Patches:
v1-14815.patch uploaded by dimas (license 88)
Tested by: geoff2010, file, dimas, ZX81, moliveras
(closes issue #14460)
Reported by: moliveras
Tested by: moliveras
........
................
Modified:
branches/1.6.2/ (props changed)
branches/1.6.2/main/rtp.c
Propchange: branches/1.6.2/
------------------------------------------------------------------------------
Binary property 'trunk-merged' - no diff available.
Modified: branches/1.6.2/main/rtp.c
URL: http://svn.asterisk.org/svn-view/asterisk/branches/1.6.2/main/rtp.c?view=diff&rev=194213&r1=194212&r2=194213
==============================================================================
--- branches/1.6.2/main/rtp.c (original)
+++ branches/1.6.2/main/rtp.c Wed May 13 08:42:22 2009
@@ -64,7 +64,7 @@
#define RTP_MTU 1200
-#define DEFAULT_DTMF_TIMEOUT 3000 /*!< samples */
+#define DEFAULT_DTMF_TIMEOUT (150 * (8000 / 1000)) /*!< samples */
static int dtmftimeout = DEFAULT_DTMF_TIMEOUT;
@@ -133,7 +133,8 @@
/* DTMF Reception Variables */
char resp;
unsigned int lastevent;
- int dtmfcount;
+ unsigned int dtmf_duration; /*!< Total duration in samples since the digit start event */
+ unsigned int dtmf_timeout; /*!< When this timestamp is reached we consider END frame lost and forcibly abort digit */
unsigned int dtmfsamples;
/* DTMF Transmission Variables */
unsigned int lastdigitts;
@@ -985,7 +986,7 @@
rtp->resp = 0;
} else if (rtp->resp == resp)
rtp->dtmfsamples += 20 * 8;
- rtp->dtmfcount = dtmftimeout;
+ rtp->dtmf_timeout = dtmftimeout;
return f;
}
@@ -1042,23 +1043,59 @@
if (ast_test_flag(rtp, FLAG_DTMF_COMPENSATE)) {
if ((rtp->lastevent != timestamp) || (rtp->resp && rtp->resp != resp)) {
rtp->resp = resp;
- rtp->dtmfcount = 0;
+ rtp->dtmf_timeout = 0;
f = send_dtmf(rtp, AST_FRAME_DTMF_END);
f->len = 0;
rtp->lastevent = timestamp;
}
} else {
- if ((!(rtp->resp) && (!(event_end & 0x80))) || (rtp->resp && rtp->resp != resp)) {
- rtp->resp = resp;
- f = send_dtmf(rtp, AST_FRAME_DTMF_BEGIN);
- rtp->dtmfcount = dtmftimeout;
- } else if ((event_end & 0x80) && (rtp->lastevent != seqno) && rtp->resp) {
- f = send_dtmf(rtp, AST_FRAME_DTMF_END);
- f->len = ast_tvdiff_ms(ast_samp2tv(samples, 8000), ast_tv(0, 0)); /* XXX hard coded 8kHz */
- rtp->resp = 0;
- rtp->dtmfcount = 0;
- rtp->lastevent = seqno;
- }
+ /* The duration parameter measures the complete
+ duration of the event (from the beginning) - RFC2833.
+ Account for the fact that duration is only 16 bits long
+ (about 8 seconds at 8000 Hz) and can wrap is digit
+ is hold for too long. */
+ unsigned int new_duration = rtp->dtmf_duration;
+ unsigned int last_duration = new_duration & 0xFFFF;
+
+ if (last_duration > 64000 && samples < last_duration)
+ new_duration += 0xFFFF + 1;
+ new_duration = (new_duration & ~0xFFFF) | samples;
+
+ if (event_end & 0x80) {
+ /* End event */
+ if ((rtp->lastevent != seqno) && rtp->resp) {
+ rtp->dtmf_duration = new_duration;
+ f = send_dtmf(rtp, AST_FRAME_DTMF_END);
+ f->len = ast_tvdiff_ms(ast_samp2tv(rtp->dtmf_duration, 8000), ast_tv(0, 0));
+ rtp->resp = 0;
+ rtp->dtmf_duration = rtp->dtmf_timeout = 0;
+ }
+ } else {
+ /* Begin/continuation */
+
+ if (rtp->resp && rtp->resp != resp) {
+ /* Another digit already began. End it */
+ f = send_dtmf(rtp, AST_FRAME_DTMF_END);
+ f->len = ast_tvdiff_ms(ast_samp2tv(rtp->dtmf_duration, 8000), ast_tv(0, 0));
+ rtp->resp = 0;
+ rtp->dtmf_duration = rtp->dtmf_timeout = 0;
+ }
+
+
+ if (rtp->resp) {
+ /* Digit continues */
+ rtp->dtmf_duration = new_duration;
+ } else {
+ /* New digit began */
+ rtp->resp = resp;
+ f = send_dtmf(rtp, AST_FRAME_DTMF_BEGIN);
+ rtp->dtmf_duration = samples;
+ }
+
+ rtp->dtmf_timeout = timestamp + rtp->dtmf_duration + dtmftimeout;
+ }
+
+ rtp->lastevent = seqno;
}
rtp->dtmfsamples = samples;
@@ -1739,17 +1776,15 @@
rtp->rxseqno = seqno;
- if (rtp->dtmfcount) {
- rtp->dtmfcount -= (timestamp - rtp->lastrxts);
-
- if (rtp->dtmfcount < 0) {
- rtp->dtmfcount = 0;
- }
-
- if (rtp->resp && !rtp->dtmfcount) {
+ if (rtp->dtmf_timeout && rtp->dtmf_timeout < timestamp) {
+ rtp->dtmf_timeout = 0;
+
+ if (rtp->resp) {
struct ast_frame *f;
f = send_dtmf(rtp, AST_FRAME_DTMF_END);
+ f->len = ast_tvdiff_ms(ast_samp2tv(rtp->dtmf_duration, 8000), ast_tv(0, 0));
rtp->resp = 0;
+ rtp->dtmf_timeout = rtp->dtmf_duration = 0;
return f;
}
}
@@ -2681,7 +2716,7 @@
rtp->lastevent = 0;
rtp->lasttxformat = 0;
rtp->lastrxformat = 0;
- rtp->dtmfcount = 0;
+ rtp->dtmf_timeout = 0;
rtp->dtmfsamples = 0;
rtp->seqno = 0;
rtp->rxseqno = 0;
@@ -4724,7 +4759,7 @@
}
if ((s = ast_variable_retrieve(cfg, "general", "dtmftimeout"))) {
dtmftimeout = atoi(s);
- if ((dtmftimeout < 0) || (dtmftimeout > 20000)) {
+ if ((dtmftimeout < 0) || (dtmftimeout > 64000)) {
ast_log(LOG_WARNING, "DTMF timeout of '%d' outside range, using default of '%d' instead\n",
dtmftimeout, DEFAULT_DTMF_TIMEOUT);
dtmftimeout = DEFAULT_DTMF_TIMEOUT;
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