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Custom sample rate for echo calibration.

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New "echo_cancellation_rate" config file key.
This commit is contained in:
Guillaume Beraudo 2011-05-23 16:32:28 +02:00
parent 27ab8107ef
commit 58dca09f9b
4 changed files with 26 additions and 6 deletions
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16
coreapi/ec-calibrator.c
View file

@ -23,15 +23,18 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#include "mediastreamer2/mstonedetector.h"
#include "mediastreamer2/dtmfgen.h"
#include "lpconfig.h"
static void ecc_init_filters(EcCalibrator *ecc){
unsigned int rate;
ecc->ticker=ms_ticker_new();
ecc->sndread=ms_snd_card_create_reader(ecc->play_card);
ms_filter_call_method(ecc->sndread,MS_FILTER_SET_SAMPLE_RATE,&ecc->rate);
ecc->det=ms_filter_new(MS_TONE_DETECTOR_ID);
ms_filter_call_method(ecc->det,MS_FILTER_SET_SAMPLE_RATE,&ecc->rate);
ecc->rec=ms_filter_new(MS_FILE_REC_ID);
ms_filter_link(ecc->sndread,0,ecc->det,0);
@ -39,14 +42,17 @@ static void ecc_init_filters(EcCalibrator *ecc){
ecc->play=ms_filter_new(MS_FILE_PLAYER_ID);
ecc->gen=ms_filter_new(MS_DTMF_GEN_ID);
ms_filter_call_method(ecc->gen,MS_FILTER_SET_SAMPLE_RATE,&ecc->rate);
ecc->resampler=ms_filter_new(MS_RESAMPLE_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->resampler,0);
ms_filter_link(ecc->resampler,0,ecc->sndwrite,0);
unsigned int rate;
ms_filter_call_method(ecc->sndwrite,MS_FILTER_SET_SAMPLE_RATE,&ecc->rate);
ms_filter_call_method(ecc->sndwrite,MS_FILTER_GET_SAMPLE_RATE,&rate);
ms_filter_call_method(ecc->resampler,MS_FILTER_SET_SAMPLE_RATE,&ecc->rate);
ms_filter_call_method(ecc->resampler,MS_FILTER_SET_OUTPUT_SAMPLE_RATE,&rate);
ms_ticker_attach(ecc->ticker,ecc->play);
@ -149,9 +155,10 @@ static void * ecc_thread(void *p){
return NULL;
}
EcCalibrator * ec_calibrator_new(MSSndCard *play_card, MSSndCard *capt_card, LinphoneEcCalibrationCallback cb, void *cb_data ){
EcCalibrator * ec_calibrator_new(MSSndCard *play_card, MSSndCard *capt_card, unsigned int rate, LinphoneEcCalibrationCallback cb, void *cb_data ){
EcCalibrator *ecc=ms_new0(EcCalibrator,1);
ecc->rate=rate;
ecc->cb=cb;
ecc->cb_data=cb_data;
ecc->capt_card=capt_card;
@ -174,6 +181,7 @@ int linphone_core_start_echo_calibration(LinphoneCore *lc, LinphoneEcCalibration
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);
unsigned int rate = lp_config_get_int(lc->config,"sound","echo_cancellation_rate",8000);
lc->ecc=ec_calibrator_new(lc->sound_conf.play_sndcard,lc->sound_conf.capt_sndcard,rate,cb,cb_data);
return 0;
}

1
coreapi/private.h
View file

@ -472,6 +472,7 @@ struct _EcCalibrator{
int sent_count;
int64_t acc;
int delay;
unsigned int rate;
LinphoneEcCalibratorStatus status;
};

13
coreapi/test_ecc.c
View file

@ -27,10 +27,21 @@ static void calibration_finished(LinphoneCore *lc, LinphoneEcCalibratorStatus st
if (status==LinphoneEcCalibratorDone) ms_message("Measured delay is %i",delay);
}
static char config_file[1024];
void parse_args(int argc, char *argv[]){
if (argc != 3 || strncmp("-c",argv[1], 2) || access(argv[2],F_OK)!=0) {
printf("Usage: test_ecc [-c config_file] where config_file will be written with the detected value\n");
exit(-1);
}
strncpy(config_file,argv[2],1024);
}
int main(int argc, char *argv[]){
if (argc>1) parse_args(argc,argv);
int count=0;
LinphoneCoreVTable vtable={0};
LinphoneCore *lc=linphone_core_new(&vtable,NULL,NULL,NULL);
LinphoneCore *lc=linphone_core_new(&vtable,config_file,NULL,NULL);
linphone_core_enable_logs(NULL);

2
mediastreamer2

@ -1 +1 @@
Subproject commit 0781bd574fc09a43bcadcb55d8f1563d6493629c
Subproject commit 45a3e458669ae7d3f5537665d7549d82469cf96f