Files
platform-external-webrtc/webrtc/modules/audio_processing/ns/noise_suppression.c
kwiberg@webrtc.org 12cd443752 Noise suppression: Change signature to work on floats instead of ints
Internally, it already worked on floats. This patch just changes the
signature of a bunch of functions so that floats can be passed
directly from the new and improved AudioBuffer without converting the
data to int and back again first.

(The reference data to the ApmTest.Process test had to be modified
slightly; this is because the noise suppressor comes immediately after
the echo canceller, which also works on floats. If I truncate to
integers between the two steps, ApmTest.Process doesn't complain, but
of course that's exactly the sort of thing the float conversion is
supposed to let us avoid...)

BUG=
R=aluebs@webrtc.org, bjornv@webrtc.org, tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/13519004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@6385 4adac7df-926f-26a2-2b94-8c16560cd09d
2014-06-10 11:13:09 +00:00

62 lines
1.7 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 "webrtc/modules/audio_processing/ns/include/noise_suppression.h"
#include <stdlib.h>
#include <string.h>
#include "webrtc/common_audio/signal_processing/include/signal_processing_library.h"
#include "webrtc/modules/audio_processing/ns/defines.h"
#include "webrtc/modules/audio_processing/ns/ns_core.h"
int WebRtcNs_Create(NsHandle** NS_inst) {
*NS_inst = (NsHandle*) malloc(sizeof(NSinst_t));
if (*NS_inst != NULL) {
(*(NSinst_t**)NS_inst)->initFlag = 0;
return 0;
} else {
return -1;
}
}
int WebRtcNs_Free(NsHandle* NS_inst) {
free(NS_inst);
return 0;
}
int WebRtcNs_Init(NsHandle* NS_inst, uint32_t fs) {
return WebRtcNs_InitCore((NSinst_t*) NS_inst, fs);
}
int WebRtcNs_set_policy(NsHandle* NS_inst, int mode) {
return WebRtcNs_set_policy_core((NSinst_t*) NS_inst, mode);
}
int WebRtcNs_Process(NsHandle* NS_inst, float* spframe, float* spframe_H,
float* outframe, float* outframe_H) {
return WebRtcNs_ProcessCore(
(NSinst_t*) NS_inst, spframe, spframe_H, outframe, outframe_H);
}
float WebRtcNs_prior_speech_probability(NsHandle* handle) {
NSinst_t* self = (NSinst_t*) handle;
if (handle == NULL) {
return -1;
}
if (self->initFlag == 0) {
return -1;
}
return self->priorSpeechProb;
}