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spandsp: fixing t38 with configurable tone type. 

- tone_type value is taken from dialplan
           t38_gateway function's 2nd parameter
         - tone type could be one of
           cng|ced_preamble|ans|ans_pr|ansam|preamble
         - in dialplan, if enable t38 in ftdm-to-sip,
           tone type should be set to "t38_gateway peer cng"
         - if enable t38 in sip-to-ftdm,
           tone type should be set to "t38_gateway peer ced_preamble"
This commit is contained in:
James Zhang 2012-02-02 11:38:12 -05:00
parent 541aa551c7
commit 34b0f8ad74
1 changed files with 26 additions and 3 deletions
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29
src/mod/applications/mod_spandsp/mod_spandsp.c
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@ -125,12 +125,14 @@ static void event_handler(switch_event_t *event)
SWITCH_STANDARD_APP(t38_gateway_function)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
time_t timeout = switch_epoch_time_now(NULL) + 20;
time_t timeout = 20;
const char *var;
int argc = 0;
char *argv[2] = { 0 };
char *dupdata;
const char *direction = NULL, *flags = NULL;
int tone_type = 0;
if (!zstr(data) && (dupdata = switch_core_session_strdup(session, data))) {
if ((argc = switch_split(dupdata, ' ', argv))) {
@ -156,14 +158,35 @@ SWITCH_STANDARD_APP(t38_gateway_function)
if ((var = switch_channel_get_variable(channel, "t38_gateway_detect_timeout"))) {
long to = atol(var);
if (to > -1) {
timeout = (time_t) (switch_epoch_time_now(NULL) + to);
timeout = to;
} else {
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_WARNING, "%s invalid timeout value.\n", switch_channel_get_name(channel));
}
}
if (!strcasecmp(flags, "cng")) {
tone_type = MODEM_CONNECT_TONES_FAX_CNG;
} else if (!strcasecmp(flags, "ans")) {
tone_type = MODEM_CONNECT_TONES_ANS;
} else if (!strcasecmp(flags, "ans_pr")) {
tone_type = MODEM_CONNECT_TONES_ANS_PR;
} else if (!strcasecmp(flags, "ansam")) {
tone_type = MODEM_CONNECT_TONES_ANSAM;
} else if (!strcasecmp(flags, "ansam_pr")) {
tone_type = MODEM_CONNECT_TONES_ANSAM_PR;
} else if (!strcasecmp(flags, "preamble")) {
tone_type = MODEM_CONNECT_TONES_FAX_PREAMBLE;
} else if (!strcasecmp(flags, "ced_preamble")) {
tone_type = MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE;
} else {
tone_type = MODEM_CONNECT_TONES_NONE;
}
//switch_ivr_tone_detect_session(session, "t38", "1100.0", "rw", timeout, 1, direction, NULL, t38_gateway_start);
spandsp_fax_detect_session(session, "rw", timeout, MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE, 1, direction, NULL, t38_gateway_start);
//spandsp_fax_detect_session(session, "rw", timeout, MODEM_CONNECT_TONES_FAX_CED_OR_PREAMBLE, 1, direction, NULL, t38_gateway_start);
spandsp_fax_detect_session(session, "rw", timeout, tone_type, 1, direction, NULL, t38_gateway_start);
}
}