50 lines
1.4 KiB
C++
Vendored
50 lines
1.4 KiB
C++
Vendored
/*
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* Copyright 2015 The Android Open Source Project
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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 FLOWGRAPH_MULTI_TO_MONO_CONVERTER_H
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#define FLOWGRAPH_MULTI_TO_MONO_CONVERTER_H
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#include <unistd.h>
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#include <sys/types.h>
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#include "oboe_flowgraph_FlowGraphNode_android.h"
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namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph {
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/**
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* Convert a multi-channel interleaved stream to a monophonic stream
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* by extracting channel[0].
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*/
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class MultiToMonoConverter : public FlowGraphNode {
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public:
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explicit MultiToMonoConverter(int32_t inputChannelCount);
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virtual ~MultiToMonoConverter();
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int32_t onProcess(int32_t numFrames) override;
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const char *getName() override {
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return "MultiToMonoConverter";
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}
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FlowGraphPortFloatInput input;
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FlowGraphPortFloatOutput output;
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};
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} /* namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph */
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#endif //FLOWGRAPH_MULTI_TO_MONO_CONVERTER_H
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