1*05767d91SRobert Wu /* 2*05767d91SRobert Wu * Copyright 2019 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 #ifndef OBOE_SOURCE_I24_CALLER_H 18*05767d91SRobert Wu #define OBOE_SOURCE_I24_CALLER_H 19*05767d91SRobert Wu 20*05767d91SRobert Wu #include <unistd.h> 21*05767d91SRobert Wu #include <sys/types.h> 22*05767d91SRobert Wu 23*05767d91SRobert Wu #include "flowgraph/FlowGraphNode.h" 24*05767d91SRobert Wu #include "AudioSourceCaller.h" 25*05767d91SRobert Wu #include "FixedBlockReader.h" 26*05767d91SRobert Wu 27*05767d91SRobert Wu namespace oboe { 28*05767d91SRobert Wu 29*05767d91SRobert Wu /** 30*05767d91SRobert Wu * AudioSource that uses callback to get more data. 31*05767d91SRobert Wu */ 32*05767d91SRobert Wu class SourceI24Caller : public AudioSourceCaller { 33*05767d91SRobert Wu public: SourceI24Caller(int32_t channelCount,int32_t framesPerCallback)34*05767d91SRobert Wu SourceI24Caller(int32_t channelCount, int32_t framesPerCallback) 35*05767d91SRobert Wu : AudioSourceCaller(channelCount, framesPerCallback, kBytesPerI24Packed) { 36*05767d91SRobert Wu mConversionBuffer = std::make_unique<uint8_t[]>(static_cast<size_t>(kBytesPerI24Packed) 37*05767d91SRobert Wu * static_cast<size_t>(channelCount) 38*05767d91SRobert Wu * static_cast<size_t>(output.getFramesPerBuffer())); 39*05767d91SRobert Wu } 40*05767d91SRobert Wu 41*05767d91SRobert Wu int32_t onProcess(int32_t numFrames) override; 42*05767d91SRobert Wu getName()43*05767d91SRobert Wu const char *getName() override { 44*05767d91SRobert Wu return "SourceI24Caller"; 45*05767d91SRobert Wu } 46*05767d91SRobert Wu 47*05767d91SRobert Wu private: 48*05767d91SRobert Wu std::unique_ptr<uint8_t[]> mConversionBuffer; 49*05767d91SRobert Wu static constexpr int kBytesPerI24Packed = 3; 50*05767d91SRobert Wu }; 51*05767d91SRobert Wu 52*05767d91SRobert Wu } 53*05767d91SRobert Wu #endif //OBOE_SOURCE_I16_CALLER_H 54