106 lines
3.5 KiB
C++
106 lines
3.5 KiB
C++
/*
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* EncoderTop.cpp
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*
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* Copyright 2019 HIMSA II K/S - www.himsa.dk. Represented by EHIMA - www.ehima.com
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "EncoderTop.hpp"
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namespace Lc3Enc
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{
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EncoderTop::EncoderTop(uint16_t fs_, DatapointContainer* datapoints_)
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:
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EncoderTop(Lc3Config(fs_,Lc3Config::FrameDuration::d10ms,1), datapoints_)
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{
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}
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EncoderTop::EncoderTop(Lc3Config lc3Config_, DatapointContainer* datapoints_)
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:
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lc3Config(lc3Config_),
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datapoints(datapoints_),
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encoderCurrentFrame(nullptr),
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encoderPreviousFrame(nullptr),
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mdctEnc(lc3Config),
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attackDetector(lc3Config),
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spectralNoiseShaping(lc3Config, mdctEnc.get_I_fs() ),
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temporalNoiseShaping(lc3Config),
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spectralQuantization(lc3Config_.NE, lc3Config_.Fs_ind),
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noiseLevelEstimation(lc3Config),
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frameCount(0)
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{
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if (nullptr != datapoints)
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{
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datapoints->addDatapoint( "NF", &lc3Config.NF, sizeof(lc3Config.NF) );
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mdctEnc.registerDatapoints( datapoints );
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attackDetector.registerDatapoints( datapoints );
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spectralNoiseShaping.registerDatapoints( datapoints );
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temporalNoiseShaping.registerDatapoints( datapoints );
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spectralQuantization.registerDatapoints( datapoints );
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noiseLevelEstimation.registerDatapoints( datapoints );
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}
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}
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EncoderTop::~EncoderTop()
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{
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if (nullptr != encoderPreviousFrame)
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{
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delete encoderPreviousFrame;
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encoderPreviousFrame = nullptr;
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}
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if (nullptr != encoderCurrentFrame)
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{
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delete encoderCurrentFrame;
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encoderCurrentFrame = nullptr;
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}
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}
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void EncoderTop::run(const int16_t* x_s, uint16_t byte_count, uint8_t* bytes)
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{
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frameCount++;
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if ( (nullptr == encoderCurrentFrame) || (encoderCurrentFrame->nbytes != byte_count) )
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{
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// We need to instantiate a new EncoderFrame only
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// when byte_count has been changed. Thus, frequent
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// dynamic memory allocation can be constrained to
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// rate optimized operation.
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if (nullptr != encoderPreviousFrame)
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{
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delete encoderPreviousFrame;
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}
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encoderPreviousFrame = encoderCurrentFrame;
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encoderCurrentFrame = new EncoderFrame(
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mdctEnc,
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attackDetector,
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spectralNoiseShaping,
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temporalNoiseShaping,
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spectralQuantization,
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noiseLevelEstimation,
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lc3Config, byte_count);
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encoderCurrentFrame->linkPreviousFrame(encoderPreviousFrame);
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if (nullptr != datapoints)
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{
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// Another way to make to call optional would be to split run() into
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// init(), registerDatapoints() & remaining run() -> we preferred the simpler
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// API and thus designed this registration being dependent on the availability of datapoints.
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encoderCurrentFrame->registerDatapoints( datapoints );
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}
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}
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encoderCurrentFrame->run(x_s, bytes);
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}
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}//namespace Lc3Enc
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