1 /* 2 * Copyright (C) 2023 Huawei Device Co., Ltd. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. 14 */ 15 16 #ifndef AV_CODEC_ENGIN_BFFERS_H 17 #define AV_CODEC_ENGIN_BFFERS_H 18 19 #include "audio_buffer_info.h" 20 #include "nocopyable.h" 21 22 #include <atomic> 23 #include <condition_variable> 24 #include <mutex> 25 #include <queue> 26 #include <string_view> 27 28 namespace OHOS { 29 namespace MediaAVCodec { 30 class AudioBuffersManager : public NoCopyable { 31 public: 32 AudioBuffersManager(const uint32_t bufferSize, const std::string_view &name, const uint16_t count, 33 const uint32_t metaSize = 0); 34 35 ~AudioBuffersManager(); 36 37 std::shared_ptr<AudioBufferInfo> getMemory(const uint32_t &index) const noexcept; 38 39 bool ReleaseBuffer(const uint32_t &index); 40 41 bool SetBufferBusy(const uint32_t &index); 42 43 bool RequestNewBuffer(uint32_t &index, std::shared_ptr<AudioBufferInfo> &buffer); 44 45 bool RequestAvailableIndex(uint32_t &index); 46 47 void ReleaseAll(); 48 49 void SetRunning(); 50 51 private: 52 void initBuffers(); 53 std::shared_ptr<AudioBufferInfo> createNewBuffer(); 54 55 private: 56 std::atomic<bool> isRunning_; 57 std::mutex availableMutex_; 58 std::condition_variable availableCondition_; 59 std::queue<uint32_t> inBufIndexQue_; 60 std::vector<bool> inBufIndexExist; 61 mutable std::mutex stateMutex_; 62 const uint16_t bufferCount_; 63 uint32_t bufferSize_; 64 uint32_t metaSize_; 65 std::string_view name_; 66 std::vector<std::shared_ptr<AudioBufferInfo>> bufferInfo_; 67 }; 68 } // namespace MediaAVCodec 69 } // namespace OHOS 70 71 #endif