96 lines
3.4 KiB
C++
96 lines
3.4 KiB
C++
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/*
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* DecoderTop.hpp
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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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#ifndef __DECODER_TOP_HPP_
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#define __DECODER_TOP_HPP_
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#include <cstdint>
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#include "Lc3Config.hpp"
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#include "DecoderFrame.hpp"
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#include "PacketLossConcealment.hpp"
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#include "ResidualSpectrum.hpp"
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#include "SpectralNoiseShaping.hpp"
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#include "MdctDec.hpp"
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#include "Datapoints.hpp"
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namespace Lc3Dec
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{
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class DecoderTop
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{
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public:
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DecoderTop(uint16_t fs_, DatapointContainer* datapoints_=nullptr);
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DecoderTop(Lc3Config lc3Config_, DatapointContainer* datapoints_=nullptr);
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virtual ~DecoderTop();
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template<typename T>
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void run(
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const uint8_t *bytes,
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uint16_t nbytes,
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uint8_t BFI,
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uint8_t bits_per_audio_sample_dec,
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T* x_out,
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uint8_t& BEC_detect
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)
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{
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if ( (nullptr == decoderCurrentFrame) || (decoderCurrentFrame->nbytes != nbytes) )
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{
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// We need to instantiate a new DecoderFrame 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 != decoderPreviousFrame)
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{
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delete decoderPreviousFrame;
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}
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decoderPreviousFrame = decoderCurrentFrame;
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decoderCurrentFrame = new DecoderFrame(
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residualSpectrum,
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spectralNoiseShaping,
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packetLossConcealment,
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mdctDec,
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lc3Config,
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nbytes );
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decoderCurrentFrame->linkPreviousFrame(decoderPreviousFrame);
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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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decoderCurrentFrame->registerDatapoints( datapoints );
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}
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}
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decoderCurrentFrame->run<T>(bytes, BFI, bits_per_audio_sample_dec, x_out, BEC_detect);
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}
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const Lc3Config lc3Config;
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private:
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DatapointContainer* datapoints;
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DecoderFrame* decoderCurrentFrame;
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DecoderFrame* decoderPreviousFrame;
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ResidualSpectrum residualSpectrum;
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SpectralNoiseShaping spectralNoiseShaping;
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PacketLossConcealment packetLossConcealment;
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MdctDec mdctDec;
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};
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}//namespace Lc3Dec
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#endif // __DECODER_TOP_HPP_
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