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