Commit 3ed9a266 authored by Simon Morlat's avatar Simon Morlat

add missing echo calibrator files

parent 33b6bd69
/*
linphone
Copyright (C) 2011 Belledonne Communications SARL
Author: Simon MORLAT (simon.morlat@linphone.org)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "private.h"
#include "mediastreamer2/mstonedetector.h"
#include "mediastreamer2/dtmfgen.h"
static void ecc_init_filters(EcCalibrator *ecc){
ecc->ticker=ms_ticker_new();
ecc->sndread=ms_snd_card_create_reader(ecc->play_card);
ecc->det=ms_filter_new(MS_TONE_DETECTOR_ID);
ecc->rec=ms_filter_new(MS_FILE_REC_ID);
ms_filter_link(ecc->sndread,0,ecc->det,0);
ms_filter_link(ecc->det,0,ecc->rec,0);
ecc->play=ms_filter_new(MS_FILE_PLAYER_ID);
ecc->gen=ms_filter_new(MS_DTMF_GEN_ID);
ecc->sndwrite=ms_snd_card_create_writer(ecc->capt_card);
ms_filter_link(ecc->play,0,ecc->gen,0);
ms_filter_link(ecc->gen,0,ecc->sndwrite,0);
ms_ticker_attach(ecc->ticker,ecc->play);
ms_ticker_attach(ecc->ticker,ecc->sndread);
}
static void ecc_deinit_filters(EcCalibrator *ecc){
ms_ticker_detach(ecc->ticker,ecc->play);
ms_ticker_detach(ecc->ticker,ecc->sndread);
ms_filter_unlink(ecc->play,0,ecc->gen,0);
ms_filter_unlink(ecc->gen,0,ecc->sndwrite,0);
ms_filter_unlink(ecc->sndread,0,ecc->det,0);
ms_filter_unlink(ecc->det,0,ecc->rec,0);
ms_filter_destroy(ecc->sndread);
ms_filter_destroy(ecc->det);
ms_filter_destroy(ecc->rec);
ms_filter_destroy(ecc->play);
ms_filter_destroy(ecc->gen);
ms_filter_destroy(ecc->sndwrite);
ms_ticker_destroy(ecc->ticker);
}
static void on_tone_sent(void *data, MSFilter *f, unsigned int event_id, void *arg){
MSDtmfGenEvent *ev=(MSDtmfGenEvent*)arg;
EcCalibrator *ecc=(EcCalibrator*)data;
ecc->sent_count++;
ecc->acc-=ev->tone_start_time;
ms_message("Sent tone at %u",(unsigned int)ev->tone_start_time);
}
static void on_tone_received(void *data, MSFilter *f, unsigned int event_id, void *arg){
MSToneDetectorEvent *ev=(MSToneDetectorEvent*)arg;
EcCalibrator *ecc=(EcCalibrator*)data;
ecc->recv_count++;
ecc->acc+=ev->tone_start_time;
ms_message("Received tone at %u",(unsigned int)ev->tone_start_time);
}
static void ecc_play_tones(EcCalibrator *ecc){
MSDtmfGenCustomTone tone;
MSToneDetectorDef expected_tone;
ms_filter_set_notify_callback(ecc->det,on_tone_received,ecc);
expected_tone.frequency=2000;
expected_tone.min_duration=40;
expected_tone.min_amplitude=0.02;
ms_filter_call_method (ecc->det,MS_TONE_DETECTOR_ADD_SCAN,&expected_tone);
tone.frequency=1000;
tone.duration=1000;
tone.amplitude=1.0;
/*play an initial tone to startup the audio playback/capture*/
ms_filter_call_method(ecc->gen,MS_DTMF_GEN_PLAY_CUSTOM,&tone);
sleep(2);
ms_filter_set_notify_callback(ecc->gen,on_tone_sent,ecc);
tone.frequency=2000;
tone.duration=100;
ms_filter_call_method(ecc->gen,MS_DTMF_GEN_PLAY_CUSTOM,&tone);
sleep(1);
ms_filter_call_method(ecc->gen,MS_DTMF_GEN_PLAY_CUSTOM,&tone);
sleep(1);
ms_filter_call_method(ecc->gen,MS_DTMF_GEN_PLAY_CUSTOM,&tone);
sleep(1);
if (ecc->sent_count==3 && ecc->recv_count==3){
int delay=ecc->acc/3;
if (delay<0){
ms_error("Quite surprising calibration result, delay=%i",delay);
ecc->status=LinphoneEcCalibratorFailed;
}else{ms_message("Echo calibration estimated delay to be %i ms",delay);
ecc->delay=delay;
ecc->status=LinphoneEcCalibratorDone;
}
}else{
ms_error("Echo calibration failed, tones received = %i",ecc->recv_count);
ecc->status=LinphoneEcCalibratorFailed;
}
}
static void * ecc_thread(void *p){
EcCalibrator *ecc=(EcCalibrator*)p;
ecc_init_filters(ecc);
ecc_play_tones(ecc);
ecc_deinit_filters(ecc);
return NULL;
}
EcCalibrator * ec_calibrator_new(MSSndCard *play_card, MSSndCard *capt_card, LinphoneEcCalibrationCallback cb, void *cb_data ){
EcCalibrator *ecc=ms_new0(EcCalibrator,1);
ecc->cb=cb;
ecc->cb_data=cb_data;
ecc->capt_card=capt_card;
ecc->play_card=play_card;
ms_thread_create(&ecc->thread,NULL,ecc_thread,ecc);
return ecc;
}
LinphoneEcCalibratorStatus ec_calibrator_get_status(EcCalibrator *ecc){
return ecc->status;
}
void ec_calibrator_destroy(EcCalibrator *ecc){
ms_thread_join(ecc->thread,NULL);
ms_free(ecc);
}
int linphone_core_start_echo_calibration(LinphoneCore *lc, LinphoneEcCalibrationCallback cb, void *cb_data){
if (lc->ecc!=NULL){
ms_error("Echo calibration is still on going !");
return -1;
}
lc->ecc=ec_calibrator_new(lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard,cb,cb_data);
return 0;
}
/*
linphone
Copyright (C) 2011 Belledonne Communications SARL
Author: Simon MORLAT (simon.morlat@linphone.org)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "linphonecore.h"
#include "linphonecore_utils.h"
static void calibration_finished(LinphoneCore *lc, LinphoneEcCalibratorStatus status, int delay, void *data){
ms_message("echo calibration finished %s.",status==LinphoneEcCalibratorDone ? "successfully" : "with faillure");
if (status==LinphoneEcCalibratorDone) ms_message("Measured delay is %i",delay);
}
int main(int argc, char *argv[]){
int count=0;
LinphoneCoreVTable vtable={0};
LinphoneCore *lc=linphone_core_new(&vtable,NULL,NULL,NULL);
linphone_core_enable_logs(NULL);
linphone_core_start_echo_calibration(lc,calibration_finished,NULL);
while(count++<1000){
linphone_core_iterate(lc);
ms_usleep(10000);
}
linphone_core_destroy(lc);
return 0;
}
mediastreamer2 @ 434b6274
Subproject commit c5959fa4520005013cd14d2f773116f24f2eb7b7
Subproject commit 434b627405d46c50cb109c001e44891551d0efab
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