Hello, may I ask how to use the noise reduction module of webrtc

[wmailn]

Hello:
My linphone-sdk version is 5.2.0 and I found that I could use the AEC and VAD modules of webrtc directly, but not the noise reduction module.
I try to write and connect the Filter of noise reduction module in accordance with the AEC module, I see in the log that the WebRtcNsx_Process method has been executed, but there is no effect. May I ask if there is something wrong with my code? Can you help me to enable the noise reduction module?
I'll post my code below.

[wmailn]

ns.cc

#include "noise_suppression_x.h"
#include "mediastreamer2/msfilter.h"
#include "mediastreamer2/msticker.h"

#define NUMBER_SAMPLE_RATES 4

static const int framesize = 80;

// static const int _sample_rates[NUMBER_SAMPLE_RATES] = {8000, 16000, 32000, 48000};

typedef struct MSWebRtcNs {
NsxHandle *nsxInst = nullptr;
int sample_rate = 8000;
int framesize;
MSBufferizer echo;

// int enable = 1; // Disable if the sample rate doesn't match webrtc requirement
// int silence_detection_enabled = 0; // silence detection enabled information
// uint64_t silence_duration = 0; // silence threshold duration in ms
// uint64_t last_voice_detection = 0; // last time voice was detected
// int silence_event_send = 0;

} MSWebRtcNs;

static int ns_set_sample_rate(MSFilter *f, void *arg) {
MSWebRtcNs *ns = static_cast<MSWebRtcNs *>(f->data);
ns->sample_rate = *(int *)arg;
ms_message("--wumeng--ns--[M:%s]: sample_rate:%d", FUNCTION, ns->sample_rate);

return 0;

}

static void ns_init(MSFilter *f) {
ms_message("--wumeng--ns--[M:%s]: ", FUNCTION);
MSWebRtcNs *ns = new MSWebRtcNs();
ns->nsxInst = WebRtcNsx_Create();
if (WebRtcNsx_Init(ns->nsxInst, ns->sample_rate) == -1){
ns->nsxInst = nullptr;
ms_error("--wumeng--ns--[M:%s]: WebRtcNsx_Init fail !!!", FUNCTION);
}
// 降噪级别 0 ~ 3
if (WebRtcNsx_set_policy(ns->nsxInst, 3) == -1){
ms_warning("--wumeng--ns--[M:%s]: WebRtcNsx_set_policy fail !!!", FUNCTION);
}
ns->framesize = framesize;
ms_bufferizer_init(&ns->echo);
f->data = ns;
}

static void ns_process(MSFilter *f) {
MSWebRtcNs *ns = static_cast<MSWebRtcNs *>(f->data);

int nbytes = ns->framesize * sizeof(short);
short **outFrame = new short *[2];
short **echo = new short *[2];

echo[0] = (short *)ms_malloc0(nbytes);
outFrame[0] = (short *)ms_malloc0(nbytes);

mblk_t *in = ms_queue_get(f->inputs[0]);

ms_bufferizer_put_from_queue(&ns->echo, f->inputs[0]);

while (ms_bufferizer_read(&ns->echo, (uint8_t *)echo[0], (size_t)nbytes) >= (size_t)nbytes){

	WebRtcNsx_Process(ns->nsxInst, echo, 1, outFrame);

	mblk_t *refm = allocb(nbytes, 0);
	memset(refm->b_wptr, 0, nbytes);
	memcpy(refm->b_rptr, outFrame[0], nbytes);
	refm->b_wptr += nbytes;
	ms_queue_put(f->outputs[0], refm);
}

ms_free(echo[0]);
ms_free(outFrame[0]);
delete outFrame;
delete echo;

}

static void ns_uninit(MSFilter *f) {
ms_message("--wumeng--ns--[M:%s]: ", FUNCTION);
MSWebRtcNs *ns = static_cast<MSWebRtcNs *>(f->data);
if (ns->nsxInst){
WebRtcNsx_Free(ns->nsxInst);
}
ns->nsxInst = nullptr;
ms_bufferizer_flush(&ns->echo);
delete ns;
f->data = nullptr;
}

static MSFilterMethod ns_methods[]={
{ MS_FILTER_SET_SAMPLE_RATE, ns_set_sample_rate},
{ 0, nullptr }
};

extern "C" MSFilterDesc ms_webrtc_ns_desc = {
MS_FILTER_PLUGIN_ID,
"MSWebRtcNSDec",
"WebRtc's NS",
MS_FILTER_OTHER,
"NS",
1, // Inputs
1, // Outputs
ns_init,
nullptr,
ns_process,
nullptr,
ns_uninit,
ns_methods,
MS_FILTER_IS_PUMP
};

[wmailn]

Due to network restrictions, I cannot upload the code in the form of attachment. I can only send it in the comment as text. I'm very sorry.