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FS-11014 [core] add vad to core

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This commit is contained in:
Seven Du
2018-03-07 22:28:30 +08:00
committed by Muteesa Fred
parent bea634679c
commit 99d2e5e243
7 changed files with 374 additions and 2 deletions
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68
src/mod/applications/mod_dptools/mod_dptools.c
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@@ -6128,6 +6128,73 @@ SWITCH_STANDARD_APP(deduplicate_dtmf_app_function)
}
}
SWITCH_STANDARD_APP(vad_test_function)
{
switch_channel_t *channel = switch_core_session_get_channel(session);
switch_codec_implementation_t imp = { 0 };
switch_vad_t *vad;
switch_frame_t *frame = { 0 };
switch_vad_state_t vad_state;
int mode = -1;
const char *var = NULL;
int tmp;
if (!zstr(data)) {
mode = atoi(data);
if (mode > 3) mode = 3;
}
switch_core_session_raw_read(session);
switch_core_session_get_read_impl(session, &imp);
vad = switch_vad_init(imp.samples_per_second, imp.number_of_channels);
switch_assert(vad);
switch_vad_set_mode(vad, mode);
if ((var = switch_channel_get_variable(channel, "vad_hangover_len"))) {
tmp = atoi(var);
if (tmp > 0) switch_vad_set_param(vad, "hangover_len", tmp);
}
if ((var = switch_channel_get_variable(channel, "vad_thresh"))) {
tmp = atoi(var);
if (tmp > 0) switch_vad_set_param(vad, "thresh", tmp);
}
if ((var = switch_channel_get_variable(channel, "vad_timeout_len"))) {
tmp = atoi(var);
if (tmp > 0) switch_vad_set_param(vad, "timeout_len", tmp);
}
while(switch_channel_ready(channel)) {
switch_core_session_read_frame(session, &frame, SWITCH_IO_FLAG_NONE, 0);
if (switch_test_flag(frame, SFF_CNG)) {
continue;
}
vad_state = switch_vad_process(vad, frame->data, frame->datalen / 2);
if (vad_state == SWITCH_VAD_STATE_START_TALKING) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_INFO, "START TALKING\n");
switch_core_session_write_frame(session, frame, SWITCH_IO_FLAG_NONE, 0);
} else if (vad_state == SWITCH_VAD_STATE_STOP_TALKING) {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_ERROR, "STOP TALKING\n");
} else if (vad_state == SWITCH_VAD_STATE_TALKING) {
switch_core_session_write_frame(session, frame, SWITCH_IO_FLAG_NONE, 0);
} else {
switch_log_printf(SWITCH_CHANNEL_LOG, SWITCH_LOG_DEBUG, "vad_state: %d\n", vad_state);
}
}
switch_vad_destroy(&vad);
switch_core_session_reset(session, SWITCH_TRUE, SWITCH_TRUE);
}
#define SPEAK_DESC "Speak text to a channel via the tts interface"
#define DISPLACE_DESC "Displace audio from a file to the channels input"
#define SESS_REC_DESC "Starts a background recording of the entire session"
@@ -6462,6 +6529,7 @@ SWITCH_MODULE_LOAD_FUNCTION(mod_dptools_load)
SWITCH_ADD_APP(app_interface, "pickup", "Pickup", "Pickup a call", pickup_function, PICKUP_SYNTAX, SAF_SUPPORT_NOMEDIA);
SWITCH_ADD_APP(app_interface, "deduplicate_dtmf", "Prevent duplicate inband + 2833 dtmf", "", deduplicate_dtmf_app_function, "[only_rtp]", SAF_SUPPORT_NOMEDIA);
SWITCH_ADD_APP(app_interface, "vad_test", "VAD test", "VAD test, mode = -1(default), 0, 1, 2, 3", vad_test_function, "[mode]", SAF_NONE);
SWITCH_ADD_DIALPLAN(dp_interface, "inline", inline_dialplan_hunt);