diff options
author | tilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b> | 2010-05-19 16:42:20 +0000 |
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committer | tilghman <tilghman@f38db490-d61c-443f-a65b-d21fe96a405b> | 2010-05-19 16:42:20 +0000 |
commit | 34353ace4ba8ec13e2ce1ee17dd9813a4a15ab78 (patch) | |
tree | 5765a4c671b4d16184970a53beccc6b3f159a14d /main/dsp.c | |
parent | 7ba394676f1dbe013f95d934f82684de7a209063 (diff) |
Keep track of digit duration, when we're decoding inband to pass DTMF frames.
(closes issue #17235)
Reported by: frawd
Patches:
new_dtmf_dsp_len.patch uploaded by frawd (license 610)
20100518__issue17235.diff.txt uploaded by tilghman (license 14)
Tested by: frawd
git-svn-id: http://svn.digium.com/svn/asterisk/trunk@264204 f38db490-d61c-443f-a65b-d21fe96a405b
Diffstat (limited to 'main/dsp.c')
-rw-r--r-- | main/dsp.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/main/dsp.c b/main/dsp.c index 54a92d9d1..c9fd643bf 100644 --- a/main/dsp.c +++ b/main/dsp.c @@ -274,6 +274,10 @@ typedef struct { char digits[MAX_DTMF_DIGITS + 1]; int current_digits; + /* Store lengths separately, because next digit may begin before last has + * ended (because hits_to_begin may be less than misses_to_end). */ + int digitlen[MAX_DTMF_DIGITS + 1]; + int current_len; int detected_digits; int lost_digits; @@ -503,6 +507,7 @@ static void ast_mf_detect_init (mf_detect_state_t *s) static void ast_digit_detect_init(digit_detect_state_t *s, int mf) { s->current_digits = 0; + s->current_len = 0; s->detected_digits = 0; s->lost_digits = 0; s->digits[0] = '\0'; @@ -622,6 +627,7 @@ static void store_digit(digit_detect_state_t *s, char digit) { s->detected_digits++; if (s->current_digits < MAX_DTMF_DIGITS) { + s->digitlen[s->current_digits] = 0; s->digits[s->current_digits++] = digit; s->digits[s->current_digits] = '\0'; } else { @@ -725,6 +731,8 @@ static int dtmf_detect(struct ast_dsp *dsp, digit_detect_state_t *s, int16_t amp } } else { s->td.dtmf.misses = 0; + /* Current hit was same as last, so increment digit duration */ + s->digitlen[s->current_len] += DTMF_GSIZE; } } @@ -1386,7 +1394,7 @@ struct ast_frame *ast_dsp_process(struct ast_channel *chan, struct ast_dsp *dsp, digit = dtmf_detect(dsp, &dsp->digit_state, shortdata, len, (dsp->digitmode & DSP_DIGITMODE_NOQUELCH) == 0, (dsp->digitmode & DSP_DIGITMODE_RELAXDTMF)); if (dsp->digit_state.current_digits) { - int event = 0; + int event = 0, event_len = 0; char event_digit = 0; if (!dsp->dtmf_began) { @@ -1403,9 +1411,12 @@ struct ast_frame *ast_dsp_process(struct ast_channel *chan, struct ast_dsp *dsp, if (dsp->features & DSP_FEATURE_DIGIT_DETECT) { event = AST_FRAME_DTMF_END; event_digit = dsp->digit_state.digits[0]; + event_len = dsp->digit_state.digitlen[0] * 1000 / SAMPLE_RATE; } - memmove(dsp->digit_state.digits, dsp->digit_state.digits + 1, dsp->digit_state.current_digits); + memmove(&dsp->digit_state.digits[0], &dsp->digit_state.digits[1], dsp->digit_state.current_digits); dsp->digit_state.current_digits--; + memmove(&dsp->digit_state.digitlen[0], &dsp->digit_state.digitlen[1], dsp->digit_state.current_len * sizeof(dsp->digit_state.digitlen[0])); + dsp->digit_state.current_len--; dsp->dtmf_began = 0; if (dsp->features & DSP_FEATURE_BUSY_DETECT) { @@ -1420,6 +1431,7 @@ struct ast_frame *ast_dsp_process(struct ast_channel *chan, struct ast_dsp *dsp, memset(&dsp->f, 0, sizeof(dsp->f)); dsp->f.frametype = event; dsp->f.subclass.integer = event_digit; + dsp->f.len = event_len; outf = &dsp->f; goto done; } |