tg2sip/webrtc_dsp/modules/audio_processing/ns/noise_suppression.c

72 lines
2.0 KiB
C

/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#include "modules/audio_processing/ns/noise_suppression.h"
#include <stdlib.h>
#include <string.h>
#include "common_audio/signal_processing/include/signal_processing_library.h"
#include "modules/audio_processing/ns/defines.h"
#include "modules/audio_processing/ns/ns_core.h"
NsHandle* WebRtcNs_Create() {
NoiseSuppressionC* self = malloc(sizeof(NoiseSuppressionC));
self->initFlag = 0;
return (NsHandle*)self;
}
void WebRtcNs_Free(NsHandle* NS_inst) {
free(NS_inst);
}
int WebRtcNs_Init(NsHandle* NS_inst, uint32_t fs) {
return WebRtcNs_InitCore((NoiseSuppressionC*)NS_inst, fs);
}
int WebRtcNs_set_policy(NsHandle* NS_inst, int mode) {
return WebRtcNs_set_policy_core((NoiseSuppressionC*)NS_inst, mode);
}
void WebRtcNs_Analyze(NsHandle* NS_inst, const float* spframe) {
WebRtcNs_AnalyzeCore((NoiseSuppressionC*)NS_inst, spframe);
}
void WebRtcNs_Process(NsHandle* NS_inst,
const float* const* spframe,
size_t num_bands,
float* const* outframe) {
WebRtcNs_ProcessCore((NoiseSuppressionC*)NS_inst, spframe, num_bands,
outframe);
}
float WebRtcNs_prior_speech_probability(NsHandle* handle) {
NoiseSuppressionC* self = (NoiseSuppressionC*)handle;
if (handle == NULL) {
return -1;
}
if (self->initFlag == 0) {
return -1;
}
return self->priorSpeechProb;
}
const float* WebRtcNs_noise_estimate(const NsHandle* handle) {
const NoiseSuppressionC* self = (const NoiseSuppressionC*)handle;
if (handle == NULL || self->initFlag == 0) {
return NULL;
}
return self->noise;
}
size_t WebRtcNs_num_freq() {
return HALF_ANAL_BLOCKL;
}