kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-11-01 11:32:25 +00:00
Code Issues Packages Projects Releases Wiki Activity

Improvements to DSP callprogress=yes code (#5009)

Browse Source 
git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@8156 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Matthew Fredrickson
2006-01-17 23:37:22 +00:00
parent 6ba6a2be1c
commit d2fa424b1e
1 changed files with 58 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files

83
dsp.c
View File

@@ -119,8 +119,14 @@ static struct progress {
#define TONE_THRESH 10.0 /* How much louder the tone should be than channel energy */
#define TONE_MIN_THRESH 1e8 /* How much tone there should be at least to attempt */
#define COUNT_THRESH 3 /* Need at least 50ms of stuff to count it */
#define UK_HANGUP_THRESH 60 /* This is the threshold for the UK */
/* All THRESH_XXX values are in GSAMP_SIZE chunks (us = 22ms) */
#define THRESH_RING 8 /* Need at least 150ms ring to accept */
#define THRESH_TALK 2 /* Talk detection does not work continously */
#define THRESH_BUSY 4 /* Need at least 80ms to accept */
#define THRESH_CONGESTION 4 /* Need at least 80ms to accept */
#define THRESH_HANGUP 60 /* Need at least 1300ms to accept hangup */
#define THRESH_RING2ANSWER 300 /* Timeout from start of ring to answer (about 6600 ms) */
#define MAX_DTMF_DIGITS 128
@@ -315,6 +321,7 @@ struct ast_dsp {
int totalsilence;
int totalnoise;
int features;
int ringtimeout;
int busymaybe;
int busycount;
int busy_tonelength;
@@ -1037,7 +1044,6 @@ static int __ast_dsp_call_progress(struct ast_dsp *dsp, short *s, int len)
int pass;
int newstate = DSP_TONE_STATE_SILENCE;
int res = 0;
int thresh = (dsp->progmode == PROG_MODE_UK) ? UK_HANGUP_THRESH : COUNT_THRESH;
while(len) {
/* Take the lesser of the number of samples we need and what we have */
pass = len;
@@ -1099,31 +1105,56 @@ static int __ast_dsp_call_progress(struct ast_dsp *dsp, short *s, int len)
}
if (newstate == dsp->tstate) {
dsp->tcount++;
if (dsp->tcount == thresh) {
if ((dsp->features & DSP_PROGRESS_BUSY) &&
dsp->tstate == DSP_TONE_STATE_BUSY) {
res = AST_CONTROL_BUSY;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
} else if ((dsp->features & DSP_PROGRESS_TALK) &&
dsp->tstate == DSP_TONE_STATE_TALKING) {
res = AST_CONTROL_ANSWER;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
} else if ((dsp->features & DSP_PROGRESS_RINGING) &&
dsp->tstate == DSP_TONE_STATE_RINGING)
res = AST_CONTROL_RINGING;
else if ((dsp->features & DSP_PROGRESS_CONGESTION) &&
dsp->tstate == DSP_TONE_STATE_SPECIAL3) {
res = AST_CONTROL_CONGESTION;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
} else if ((dsp->features & DSP_FEATURE_CALL_PROGRESS) &&
dsp->tstate == DSP_TONE_STATE_HUNGUP) {
res = AST_CONTROL_HANGUP;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
}
if (dsp->ringtimeout)
dsp->ringtimeout++;
switch (dsp->tstate) {
case DSP_TONE_STATE_RINGING:
if ((dsp->features & DSP_PROGRESS_RINGING) &&
(dsp->tcount==THRESH_RING)) {
res = AST_CONTROL_RINGING;
dsp->ringtimeout= 1;
}
break;
case DSP_TONE_STATE_BUSY:
if ((dsp->features & DSP_PROGRESS_BUSY) &&
(dsp->tcount==THRESH_BUSY)) {
res = AST_CONTROL_BUSY;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
}
break;
case DSP_TONE_STATE_TALKING:
if ((dsp->features & DSP_PROGRESS_TALK) &&
(dsp->tcount==THRESH_TALK)) {
res = AST_CONTROL_ANSWER;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
}
break;
case DSP_TONE_STATE_SPECIAL3:
if ((dsp->features & DSP_PROGRESS_CONGESTION) &&
(dsp->tcount==THRESH_CONGESTION)) {
res = AST_CONTROL_CONGESTION;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
}
break;
case DSP_TONE_STATE_HUNGUP:
if ((dsp->features & DSP_FEATURE_CALL_PROGRESS) &&
(dsp->tcount==THRESH_HANGUP)) {
res = AST_CONTROL_HANGUP;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
}
break;
}
if (dsp->ringtimeout==THRESH_RING2ANSWER) {
#if 0
ast_log(LOG_NOTICE, "Consider call as answered because of timeout after last ring\n");
#endif
res = AST_CONTROL_ANSWER;
dsp->features &= ~DSP_FEATURE_CALL_PROGRESS;
}
} else {
#if 0
printf("Newstate: %d\n", newstate);
ast_log(LOG_NOTICE, "Stop state %d with duration %d\n", dsp->tstate, dsp->tcount);
ast_log(LOG_NOTICE, "Start state %d\n", newstate);
#endif
dsp->tstate = newstate;
dsp->tcount = 1;
@@ -1570,6 +1601,7 @@ static void ast_dsp_prog_reset(struct ast_dsp *dsp)
}
}
dsp->freqcount = max;
dsp->ringtimeout= 0;
}
struct ast_dsp *ast_dsp_new(void)
@@ -1681,6 +1713,7 @@ void ast_dsp_reset(struct ast_dsp *dsp)
dsp->freqs[x].v2 = dsp->freqs[x].v3 = 0.0;
memset(dsp->historicsilence, 0, sizeof(dsp->historicsilence));
memset(dsp->historicnoise, 0, sizeof(dsp->historicnoise));
dsp->ringtimeout= 0;
}
int ast_dsp_digitmode(struct ast_dsp *dsp, int digitmode)