/* * Copyright 2021 The Android Open Source Project * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef FLOWGRAPH_MONO_BLEND_H #define FLOWGRAPH_MONO_BLEND_H #include #include #include "FlowGraphNode.h" namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph { /** * Combine data between multiple channels so each channel is an average * of all channels. */ class MonoBlend : public FlowGraphFilter { public: explicit MonoBlend(int32_t channelCount); virtual ~MonoBlend() = default; int32_t onProcess(int32_t numFrames) override; const char *getName() override { return "MonoBlend"; } private: const float mInvChannelCount; }; } /* namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph */ #endif //FLOWGRAPH_MONO_BLEND