71 lines
1.6 KiB
C++
71 lines
1.6 KiB
C++
/* Copyright(C) 2007-2014 VoIP objects (voipobjects.com)
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "../config.h"
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#include "MT_WebRtc.h"
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#include "../helper/HL_Exception.h"
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#include <stdlib.h>
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static void checkResultCode(unsigned short code)
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{
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if (code)
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throw Exception(ERR_WEBRTC, code);
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}
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Vad::Vad(int sampleRate)
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:mSampleRate(sampleRate), mContext(NULL)
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{
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checkResultCode(WebRtcVad_Create(&mContext));
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}
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Vad::~Vad()
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{
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if (mContext)
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WebRtcVad_Free(mContext);
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}
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bool Vad::isSilence(short* samplePtr, int nrOfSamples)
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{
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short resultCode = WebRtcVad_Process(mContext, mSampleRate, samplePtr, nrOfSamples);
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return !resultCode;
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}
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// -- Cng ---
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Cng::Cng()
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:mEncoder(NULL), mDecoder(NULL)
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{
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checkResultCode(WebRtcCng_CreateEnc(&mEncoder));
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checkResultCode(WebRtcCng_CreateDec(&mDecoder));
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}
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Cng::~Cng()
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{
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if (mEncoder)
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WebRtcCng_FreeEnc(mEncoder);
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if (mDecoder)
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WebRtcCng_FreeDec(mDecoder);
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}
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void Cng::updateSid(unsigned char *sidPacket, int sidLength)
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{
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WebRtcCng_UpdateSid(mDecoder, sidPacket, sidLength);
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}
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void Cng::generateSid(short* samples, int nrOfSamples, unsigned char* sidPacket, int* sidLength)
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{
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WebRtc_Word16 produced = 0;
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checkResultCode(WebRtcCng_Encode(mEncoder, (WebRtc_Word16*)samples, nrOfSamples, sidPacket, &produced, 1/*TRUE*/));
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*sidLength = (int)produced;
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}
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void Cng::generateNoise(short* buffer, int nrOfSamples)
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{
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checkResultCode(WebRtcCng_Generate(mDecoder, buffer, nrOfSamples, 1 /*Reset CNG history*/));
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}
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