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| 1 /* | |
| 2 * Copyright (c) 2012 The WebRTC project authors. All Rights Reserved. | |
| 3 * | |
| 4 * Use of this source code is governed by a BSD-style license | |
| 5 * that can be found in the LICENSE file in the root of the source | |
| 6 * tree. An additional intellectual property rights grant can be found | |
| 7 * in the file PATENTS. All contributing project authors may | |
| 8 * be found in the AUTHORS file in the root of the source tree. | |
| 9 */ | |
| 10 | |
| 11 #ifndef WEBRTC_MODULES_AUDIO_PROCESSING_NS_INCLUDE_NOISE_SUPPRESSION_X_H_ | |
| 12 #define WEBRTC_MODULES_AUDIO_PROCESSING_NS_INCLUDE_NOISE_SUPPRESSION_X_H_ | |
| 13 | |
| 14 #include "webrtc/typedefs.h" | |
| 15 | |
| 16 typedef struct NsxHandleT NsxHandle; | |
| 17 | |
| 18 #ifdef __cplusplus | |
| 19 extern "C" { | |
| 20 #endif | |
| 21 | |
| 22 /* | |
| 23 * This function creates an instance of the fixed point Noise Suppression. | |
| 24 */ | |
| 25 NsxHandle* WebRtcNsx_Create(); | |
| 26 | |
| 27 /* | |
| 28 * This function frees the dynamic memory of a specified Noise Suppression | |
| 29 * instance. | |
| 30 * | |
| 31 * Input: | |
| 32 * - nsxInst : Pointer to NS instance that should be freed | |
| 33 */ | |
| 34 void WebRtcNsx_Free(NsxHandle* nsxInst); | |
| 35 | |
| 36 /* | |
| 37 * This function initializes a NS instance | |
| 38 * | |
| 39 * Input: | |
| 40 * - nsxInst : Instance that should be initialized | |
| 41 * - fs : sampling frequency | |
| 42 * | |
| 43 * Output: | |
| 44 * - nsxInst : Initialized instance | |
| 45 * | |
| 46 * Return value : 0 - Ok | |
| 47 * -1 - Error | |
| 48 */ | |
| 49 int WebRtcNsx_Init(NsxHandle* nsxInst, uint32_t fs); | |
| 50 | |
| 51 /* | |
| 52 * This changes the aggressiveness of the noise suppression method. | |
| 53 * | |
| 54 * Input: | |
| 55 * - nsxInst : Instance that should be initialized | |
| 56 * - mode : 0: Mild, 1: Medium , 2: Aggressive | |
| 57 * | |
| 58 * Output: | |
| 59 * - nsxInst : Initialized instance | |
| 60 * | |
| 61 * Return value : 0 - Ok | |
| 62 * -1 - Error | |
| 63 */ | |
| 64 int WebRtcNsx_set_policy(NsxHandle* nsxInst, int mode); | |
| 65 | |
| 66 /* | |
| 67 * This functions does noise suppression for the inserted speech frame. The | |
| 68 * input and output signals should always be 10ms (80 or 160 samples). | |
| 69 * | |
| 70 * Input | |
| 71 * - nsxInst : NSx instance. Needs to be initiated before call. | |
| 72 * - speechFrame : Pointer to speech frame buffer for each band | |
| 73 * - num_bands : Number of bands | |
| 74 * | |
| 75 * Output: | |
| 76 * - nsxInst : Updated NSx instance | |
| 77 * - outFrame : Pointer to output frame for each band | |
| 78 */ | |
| 79 void WebRtcNsx_Process(NsxHandle* nsxInst, | |
| 80 const short* const* speechFrame, | |
| 81 int num_bands, | |
| 82 short* const* outFrame); | |
| 83 | |
| 84 #ifdef __cplusplus | |
| 85 } | |
| 86 #endif | |
| 87 | |
| 88 #endif // WEBRTC_MODULES_AUDIO_PROCESSING_NS_INCLUDE_NOISE_SUPPRESSION_X_H_ | |
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Chromium Code Reviews
Issue 1440523002:
Remove webrtc/modules/audio_processing/{aec,aecm,ns}/include (Closed)
Base URL: https://chromium.googlesource.com/external/webrtc.git@master