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turn on echo cancellation and turn it off in mg_notify

This commit is contained in:
Mathieu Rene 2012-08-16 01:28:32 -04:00
parent fd39c5b44a
commit a7d51f5f4f
4 changed files with 66 additions and 14 deletions
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40
libs/freetdm/mod_freetdm/tdm.c
View File

@ -40,6 +40,8 @@ void ctdm_init(switch_loadable_module_interface_t *module_interface);
#define kCHAN_ID "chan"
#define kSPAN_NAME "span_name"
#define kPREBUFFER_LEN "prebuffer_len"
#define kECHOCANCEL "echo_cancel"
static struct {
switch_memory_pool_t *pool;
@ -373,6 +375,10 @@ static switch_call_cause_t channel_outgoing_channel(switch_core_session_t *sessi
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to set channel pre buffer size.\n");
return SWITCH_STATUS_GENERR;
}
if (FTDM_SUCCESS != ftdm_channel_command(tech_pvt->ftdm_channel, FTDM_COMMAND_ENABLE_ECHOCANCEL, NULL)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Failed to set enable echo cancellation.\n");
}
switch(codec) {
case FTDM_CODEC_ULAW:
@ -476,6 +482,10 @@ static switch_status_t channel_on_destroy(switch_core_session_t *session)
ctdm_private_t *tech_pvt = switch_core_session_get_private(session);
if ((tech_pvt = switch_core_session_get_private(session))) {
if (FTDM_SUCCESS != ftdm_channel_command(tech_pvt->ftdm_channel, FTDM_COMMAND_ENABLE_ECHOCANCEL, NULL)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_WARNING, "Failed to enable echo cancellation.\n");
}
if (tech_pvt->read_codec.implementation) {
switch_core_codec_destroy(&tech_pvt->read_codec);
@ -639,20 +649,28 @@ static switch_status_t channel_receive_event(switch_core_session_t *session, swi
const char *command = switch_event_get_header(event, "command");
ctdm_private_t *tech_pvt = switch_core_session_get_private(session);
if (!zstr(command) && !strcasecmp(command, kPREBUFFER_LEN)) {
const char *szval = switch_event_get_header(event, kPREBUFFER_LEN);
int val = !zstr(szval) ? atoi(szval) : 0;
if (!zstr(command)) {
if (!strcasecmp(command, kPREBUFFER_LEN)) {
const char *szval = switch_event_get_header(event, kPREBUFFER_LEN);
int val = !zstr(szval) ? atoi(szval) : 0;
if (tech_pvt->prebuffer_len == val) {
tech_pvt->prebuffer_len = val;
if (FTDM_SUCCESS != ftdm_channel_command(tech_pvt->ftdm_channel, FTDM_COMMAND_SET_PRE_BUFFER_SIZE, &tech_pvt->prebuffer_len)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to set channel pre buffer size.\n");
return SWITCH_STATUS_GENERR;
}
}
if (tech_pvt->prebuffer_len == val) {
tech_pvt->prebuffer_len = val;
if (FTDM_SUCCESS != ftdm_channel_command(tech_pvt->ftdm_channel, FTDM_COMMAND_SET_PRE_BUFFER_SIZE, &tech_pvt->prebuffer_len)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to set channel pre buffer size.\n");
return SWITCH_STATUS_GENERR;
}
}
} else if (!strcasecmp(command, kECHOCANCEL)) {
const char *szval = switch_event_get_header(event, kECHOCANCEL);
int enabled = !!switch_true(szval);
if (FTDM_SUCCESS != ftdm_channel_command(tech_pvt->ftdm_channel, enabled ? FTDM_COMMAND_ENABLE_ECHOCANCEL : FTDM_COMMAND_DISABLE_ECHOCANCEL, NULL)) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "Failed to %s echo cancellation.\n", enable ? "enable" : "disable");
}
}
}
return SWITCH_STATUS_SUCCESS;
}

28
src/mod/endpoints/mod_media_gateway/media_gateway.c
View File

@ -761,6 +761,34 @@ void mg_term_set_pre_buffer_size(mg_termination_t *term, int newval)
switch_event_destroy(&event);
}
void mg_term_set_ec(mg_termination_t *term, int enable)
{
switch_event_t *event = NULL, *event2 = NULL;
switch_core_session_t *session, *session2;
if (!zstr(term->uuid) && (session = switch_core_session_locate(term->uuid))) {
switch_event_create(&event, SWITCH_EVENT_CLONE);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, "command", kECHOCANCEL);
switch_event_add_header_string(event, SWITCH_STACK_BOTTOM, kECHOCANCEL, enable ? "true" : "false");
/* Propagate event to bridged session if there is one */
if (switch_core_session_get_partner(session, &session2) == SWITCH_STATUS_SUCCESS) {
switch_event_dup(&event2, event);
switch_core_session_receive_event(session2, &event2);
switch_core_session_rwunlock(session2);
}
switch_core_session_receive_event(session, &event);
switch_core_session_rwunlock(session);
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "Sent echo_cancel event to [%s] to [%s]\n", term->uuid, enable ? "enable" : "disable");
}
switch_event_destroy(&event);
}
/* For Emacs:
* Local Variables:
* mode:c

10
src/mod/endpoints/mod_media_gateway/mod_media_gateway.c
View File

@ -35,13 +35,17 @@ SWITCH_STANDARD_APP(mg_notify_function)
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_ERROR, "mg_notify called on a non-supported channel.\n");
return;
}
if (!strcmp(data, "cng")) {
mg_send_t38_cng_notify(term->profile, term->name);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Sent CNG notify\n");
/* Disable echo cancellation */
mg_term_set_ec(term, 0);
} else if (!strcmp(data, "ced")) {
mg_send_t38_ans_notify(term->profile, term->name);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Sent CED notify\n");
mg_send_t38_ans_notify(term->profile, term->name);
switch_log_printf(SWITCH_CHANNEL_SESSION_LOG(session), SWITCH_LOG_DEBUG, "Sent CED notify\n");
/* Disable echo cancellation */
mg_term_set_ec(term, 0);
}
}

2
src/mod/endpoints/mod_media_gateway/mod_media_gateway.h
View File

@ -88,6 +88,7 @@ typedef struct mg_context_s mg_context_t;
#define kCHAN_ID "chan"
#define kSPAN_NAME "span_name"
#define kPREBUFFER_LEN "prebuffer_len"
#define kECHOCANCEL "echo_cancel"
typedef struct mg_termination_s mg_termination_t;
@ -269,6 +270,7 @@ switch_status_t megaco_profile_destroy(megaco_profile_t **profile);
uint32_t mg_rtp_request_id(megaco_profile_t *profile);
void mg_rtp_release_id(megaco_profile_t *profile, uint32_t id);
void mg_term_set_pre_buffer_size(mg_termination_t *term, int newval);
void mg_term_set_ec(mg_termination_t *term, int enable);
mg_context_t *megaco_get_context(megaco_profile_t *profile, uint32_t context_id);
mg_context_t *megaco_choose_context(megaco_profile_t *profile);