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add WAITSTATUS channel variable output to WaitForSilence() application (bug #4256) 

git-svn-id: http://svn.digium.com/svn/asterisk/trunk@5888 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
kpfleming 2005-06-09 21:04:16 +00:00
parent 141cade222
commit 644f0e446b
1 changed files with 17 additions and 3 deletions
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20
apps/app_waitforsilence.c
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@ -40,6 +40,9 @@ static char *synopsis = "Waits for a specified amount of silence";
static char *descrip =
" WaitForSilence(x[|y]) Wait for Silence: Waits for up to 'x' \n"
"milliseconds of silence, 'y' times or 1 if omitted\n"
"Set the channel variable WAITSTATUS with to one of these values:"
"SILENCE - if silence of x ms was detected"
"TIMEOUT - if silence of x ms was not detected."
"Examples:\n"
" - WaitForSilence(500,2) will wait for 1/2 second of silence, twice\n"
" - WaitForSilence(1000) will wait for 1 second of silence, once\n";
@ -58,6 +61,8 @@ static int do_waiting(struct ast_channel *chan, int maxsilence) {
int rfmt = 0;
int res = 0;
struct ast_dsp *sildet; /* silence detector dsp */
time_t start, now;
time(&start);
rfmt = chan->readformat; /* Set to linear mode */
res = ast_set_read_format(chan, AST_FORMAT_SLINEAR);
@ -97,17 +102,26 @@ static int do_waiting(struct ast_channel *chan, int maxsilence) {
if (f->frametype == AST_FRAME_VOICE) {
dspsilence = 0;
ast_dsp_silence(sildet, f, &dspsilence);
if (dspsilence)
if (dspsilence) {
totalsilence = dspsilence;
else
time(&start);
} else {
totalsilence = 0;
}
if (totalsilence >= maxsilence) {
if (option_verbose > 2)
ast_verbose(VERBOSE_PREFIX_3 "Exiting with %dms silence > %dms required\n", totalsilence, maxsilence);
/* Ended happily with silence */
ast_frfree(f);
gotsilence = 1;
pbx_builtin_setvar_helper(chan, "WAITSTATUS", "SILENCE");
ast_log(LOG_DEBUG, "WAITSTATUS was set to SILENCE\n");
ast_frfree(f);
break;
} else if ( difftime(time(&now),start) >= maxsilence/1000 ) {
pbx_builtin_setvar_helper(chan, "WAITSTATUS", "TIMEOUT");
ast_log(LOG_DEBUG, "WAITSTATUS was set to TIMEOUT\n");
ast_frfree(f);
break;
}
}