diff options
Diffstat (limited to 'main/asterisk/ASTERISK-19610b.patch')
-rw-r--r-- | main/asterisk/ASTERISK-19610b.patch | 192 |
1 files changed, 0 insertions, 192 deletions
diff --git a/main/asterisk/ASTERISK-19610b.patch b/main/asterisk/ASTERISK-19610b.patch deleted file mode 100644 index e31226cd9..000000000 --- a/main/asterisk/ASTERISK-19610b.patch +++ /dev/null @@ -1,192 +0,0 @@ -commit fd63c4b -Author: alecdavis <alecdavis@f38db490-d61c-443f-a65b-d21fe96a405b> -Date: Wed Sep 5 07:37:42 2012 +0000 - - dsp.c: Fix multiple issues when no-interdigit delay is present, and fast DTMF 50ms/50ms - - Revert DTMF hit/miss detector to original -r349249 method with some changes, remove unnecessary; - 1. reseting of hits=0, when no signal, only need to set it once. - 2. incrementing of hits, when the hit is the same as the current hit. - 3. setting of lasthit, when it's the same as before. - - Change HITS_TO_BEGIN to 2, MISSES_TO_END to 3 - - & 3 spelling mistakes - - (closes issue ASTERISK-19610) - alecdavis (license 585) - Reported by: Jean-Philippe Lord - Tested by: alecdavis - - Review: https://reviewboard.asterisk.org/r/2085/ - ........ - - Merged revisions 372239 from http://svn.asterisk.org/svn/asterisk/branches/1.8 - - - git-svn-id: http://svn.digium.com/svn/asterisk/branches/10@372240 f38db490-d61c-443f-a65b-d21fe96a405b - -diff --git a/main/dsp.c b/main/dsp.c -index 9ba4775..7541650 100644 ---- a/main/dsp.c -+++ b/main/dsp.c -@@ -205,9 +205,9 @@ enum gsamp_thresh { - #define DTMF_GSIZE 102 - - /* How many successive hits needed to consider begin of a digit */ --#define DTMF_HITS_TO_BEGIN 4 -+#define DTMF_HITS_TO_BEGIN 2 - /* How many successive misses needed to consider end of a digit */ --#define DTMF_MISSES_TO_END 4 -+#define DTMF_MISSES_TO_END 3 - - /*! - * \brief The default silence threshold we will use if an alternate -@@ -353,7 +353,7 @@ typedef struct { - } fragment_t; - - /* Note on tone suppression (squelching). Individual detectors (DTMF/MF/generic tone) -- * report fragmens of the frame in which detected tone resides and which needs -+ * report fragments of the frame in which detected tone resides and which needs - * to be "muted" in order to suppress the tone. To mark fragment for muting, - * detectors call mute_fragment passing fragment_t there. Multiple fragments - * can be marked and ast_dsp_process later will mute all of them. -@@ -437,7 +437,7 @@ static void ast_tone_detect_init(tone_detect_state_t *s, int freq, int duration, - s->block_size = periods_in_block * sample_rate / freq; - - /* tone_detect is currently only used to detect fax tones and we -- do not need suqlching the fax tones */ -+ do not need squelching the fax tones */ - s->squelch = 0; - - /* Account for the first and the last block to be incomplete -@@ -549,7 +549,7 @@ static int tone_detect(struct ast_dsp *dsp, tone_detect_state_t *s, int16_t *amp - - for (i = limit, ptr = amp ; i > 0; i--, ptr++) { - samp = *ptr; -- /* signed 32 bit int should be enough to suqare any possible signed 16 bit value */ -+ /* signed 32 bit int should be enough to square any possible signed 16 bit value */ - s->energy += (int32_t) samp * (int32_t) samp; - - goertzel_sample(&s->tone, samp); -@@ -726,39 +726,90 @@ static int dtmf_detect(struct ast_dsp *dsp, digit_detect_state_t *s, int16_t amp - } - } - -- if (hit == s->td.dtmf.lasthit) { -- if (s->td.dtmf.current_hit) { -- /* We are in the middle of a digit already */ -- if (hit) { -- if (hit != s->td.dtmf.current_hit) { -- /* Look for a start of a new digit. -- This is because hits_to_begin may be smaller than misses_to_end -- and we may find the beginning of new digit before we consider last one ended. */ -- s->td.dtmf.current_hit = 0; -- } else { -- /* Current hit was same as last, so increment digit duration (of last digit) */ -- s->digitlen[s->current_digits - 1] += DTMF_GSIZE; -- } -- } else { -- /* No Digit */ -- s->td.dtmf.misses++; -- if (s->td.dtmf.misses == s->td.dtmf.misses_to_end) { -- /* There were enough misses to consider digit ended */ -- s->td.dtmf.current_hit = 0; -- } -- } -- } else if (hit) { -- /* Detecting new digit */ -- s->td.dtmf.hits++; -- if (s->td.dtmf.hits == s->td.dtmf.hits_to_begin) { -- store_digit(s, hit); -- s->td.dtmf.current_hit = hit; -+/* -+ * Adapted from ETSI ES 201 235-3 V1.3.1 (2006-03) -+ * (40ms reference is tunable with hits_to_begin and misses_to_end) -+ * each hit/miss is 12.75ms with DTMF_GSIZE at 102 -+ * -+ * Character recognition: When not DRC *(1) and then -+ * Shall exist VSC > 40 ms (hits_to_begin) -+ * May exist 20 ms <= VSC <= 40 ms -+ * Shall not exist VSC < 20 ms -+ * -+ * Character recognition: When DRC and then -+ * Shall cease Not VSC > 40 ms (misses_to_end) -+ * May cease 20 ms >= Not VSC >= 40 ms -+ * Shall not cease Not VSC < 20 ms -+ * -+ * *(1) or optionally a different digit recognition condition -+ * -+ * Legend: VSC The continuous existence of a valid signal condition. -+ * Not VSC The continuous non-existence of valid signal condition. -+ * DRC The existence of digit recognition condition. -+ * Not DRC The non-existence of digit recognition condition. -+ */ -+ -+/* -+ * Example: hits_to_begin=2 misses_to_end=3 -+ * -------A last_hit=A hits=0&1 -+ * ------AA hits=2 current_hit=A misses=0 BEGIN A -+ * -----AA- misses=1 last_hit=' ' hits=0 -+ * ----AA-- misses=2 -+ * ---AA--- misses=3 current_hit=' ' END A -+ * --AA---B last_hit=B hits=0&1 -+ * -AA---BC last_hit=C hits=0&1 -+ * AA---BCC hits=2 current_hit=C misses=0 BEGIN C -+ * A---BCC- misses=1 last_hit=' ' hits=0 -+ * ---BCC-C misses=0 last_hit=C hits=0&1 -+ * --BCC-CC misses=0 -+ * -+ * Example: hits_to_begin=3 misses_to_end=2 -+ * -------A last_hit=A hits=0&1 -+ * ------AA hits=2 -+ * -----AAA hits=3 current_hit=A misses=0 BEGIN A -+ * ----AAAB misses=1 last_hit=B hits=0&1 -+ * ---AAABB misses=2 current_hit=' ' hits=2 END A -+ * --AAABBB hits=3 current_hit=B misses=0 BEGIN B -+ * -AAABBBB misses=0 -+ * -+ * Example: hits_to_begin=2 misses_to_end=2 -+ * -------A last_hit=A hits=0&1 -+ * ------AA hits=2 current_hit=A misses=0 BEGIN A -+ * -----AAB misses=1 hits=0&1 -+ * ----AABB misses=2 current_hit=' ' hits=2 current_hit=B misses=0 BEGIN B -+ * ---AABBB misses=0 -+ */ -+ -+ if (s->td.dtmf.current_hit) { -+ /* We are in the middle of a digit already */ -+ if (hit != s->td.dtmf.current_hit) { -+ s->td.dtmf.misses++; -+ if (s->td.dtmf.misses == s->td.dtmf.misses_to_end) { -+ /* There were enough misses to consider digit ended */ -+ s->td.dtmf.current_hit = 0; - } -+ } else { -+ s->td.dtmf.misses = 0; -+ /* Current hit was same as last, so increment digit duration (of last digit) */ -+ s->digitlen[s->current_digits - 1] += DTMF_GSIZE; - } -- } else { -- s->td.dtmf.hits = 1; -- s->td.dtmf.misses = 1; -+ } -+ -+ /* Look for a start of a new digit no matter if we are already in the middle of some -+ digit or not. This is because hits_to_begin may be smaller than misses_to_end -+ and we may find begin of new digit before we consider last one ended. */ -+ -+ if (hit != s->td.dtmf.lasthit) { - s->td.dtmf.lasthit = hit; -+ s->td.dtmf.hits = 0; -+ } -+ if (hit && hit != s->td.dtmf.current_hit) { -+ s->td.dtmf.hits++; -+ if (s->td.dtmf.hits == s->td.dtmf.hits_to_begin) { -+ store_digit(s, hit); -+ s->td.dtmf.current_hit = hit; -+ s->td.dtmf.misses = 0; -+ } - } - - /* If we had a hit in this block, include it into mute fragment */ |