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70 lines
2.3 KiB
70 lines
2.3 KiB
// Copyright (c) 2022 PaddlePaddle Authors. All Rights Reserved.
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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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// todo refactor later (SGoat)
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#pragma once
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#include "decoder/ctc_beam_search_decoder.h"
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#include "decoder/ctc_tlg_decoder.h"
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#include "frontend/audio/feature_pipeline.h"
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#include "nnet/decodable.h"
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#include "nnet/ds2_nnet.h"
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DECLARE_double(acoustic_scale);
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namespace ppspeech {
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struct RecognizerResource {
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kaldi::BaseFloat acoustic_scale{1.0};
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FeaturePipelineOptions feature_pipeline_opts{};
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ModelOptions model_opts{};
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TLGDecoderOptions tlg_opts{};
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// CTCBeamSearchOptions beam_search_opts;
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static RecognizerResource InitFromFlags() {
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RecognizerResource resource;
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resource.acoustic_scale = FLAGS_acoustic_scale;
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resource.feature_pipeline_opts =
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FeaturePipelineOptions::InitFromFlags();
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resource.feature_pipeline_opts.assembler_opts.fill_zero = true;
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LOG(INFO) << "ds2 need fill zero be true: "
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<< resource.feature_pipeline_opts.assembler_opts.fill_zero;
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resource.model_opts = ModelOptions::InitFromFlags();
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resource.tlg_opts = TLGDecoderOptions::InitFromFlags();
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return resource;
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}
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};
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class Recognizer {
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public:
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explicit Recognizer(const RecognizerResource& resouce);
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void Accept(const kaldi::Vector<kaldi::BaseFloat>& waves);
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void Decode();
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std::string GetFinalResult();
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std::string GetPartialResult();
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void SetFinished();
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bool IsFinished();
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void Reset();
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private:
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// std::shared_ptr<RecognizerResource> resource_;
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// RecognizerResource resource_;
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std::shared_ptr<FeaturePipeline> feature_pipeline_;
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std::shared_ptr<Decodable> decodable_;
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std::unique_ptr<TLGDecoder> decoder_;
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bool input_finished_;
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};
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} // namespace ppspeech
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