1*05767d91SRobert Wu /* 2*05767d91SRobert Wu * Copyright 2015 The Android Open Source Project 3*05767d91SRobert Wu * 4*05767d91SRobert Wu * Licensed under the Apache License, Version 2.0 (the "License"); 5*05767d91SRobert Wu * you may not use this file except in compliance with the License. 6*05767d91SRobert Wu * You may obtain a copy of the License at 7*05767d91SRobert Wu * 8*05767d91SRobert Wu * http://www.apache.org/licenses/LICENSE-2.0 9*05767d91SRobert Wu * 10*05767d91SRobert Wu * Unless required by applicable law or agreed to in writing, software 11*05767d91SRobert Wu * distributed under the License is distributed on an "AS IS" BASIS, 12*05767d91SRobert Wu * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13*05767d91SRobert Wu * See the License for the specific language governing permissions and 14*05767d91SRobert Wu * limitations under the License. 15*05767d91SRobert Wu */ 16*05767d91SRobert Wu 17*05767d91SRobert Wu #include <algorithm> 18*05767d91SRobert Wu #include <unistd.h> 19*05767d91SRobert Wu #include "FlowGraphNode.h" 20*05767d91SRobert Wu #include "ClipToRange.h" 21*05767d91SRobert Wu 22*05767d91SRobert Wu using namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph; 23*05767d91SRobert Wu ClipToRange(int32_t channelCount)24*05767d91SRobert WuClipToRange::ClipToRange(int32_t channelCount) 25*05767d91SRobert Wu : FlowGraphFilter(channelCount) { 26*05767d91SRobert Wu } 27*05767d91SRobert Wu onProcess(int32_t numFrames)28*05767d91SRobert Wuint32_t ClipToRange::onProcess(int32_t numFrames) { 29*05767d91SRobert Wu const float *inputBuffer = input.getBuffer(); 30*05767d91SRobert Wu float *outputBuffer = output.getBuffer(); 31*05767d91SRobert Wu 32*05767d91SRobert Wu int32_t numSamples = numFrames * output.getSamplesPerFrame(); 33*05767d91SRobert Wu for (int32_t i = 0; i < numSamples; i++) { 34*05767d91SRobert Wu *outputBuffer++ = std::min(mMaximum, std::max(mMinimum, *inputBuffer++)); 35*05767d91SRobert Wu } 36*05767d91SRobert Wu 37*05767d91SRobert Wu return numFrames; 38*05767d91SRobert Wu } 39