1 /* 2 * Copyright (c) 2025 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 AUDIO_SOURCE_CLOCK_H 17 #define AUDIO_SOURCE_CLOCK_H 18 19 #include <mutex> 20 #include <vector> 21 #include "audio_info.h" 22 23 namespace OHOS { 24 namespace AudioStandard { 25 26 class AudioSourceClock { 27 public: AudioSourceClock()28 AudioSourceClock() {} ~AudioSourceClock()29 virtual ~AudioSourceClock() {} 30 31 void Init(uint32_t sampleRate, AudioSampleFormat format, uint32_t channel); 32 void Renew(uint32_t posIncSize); 33 void UpdateSessionId(const std::vector<int32_t> &sessionIdList); 34 35 // can be override for differ method 36 virtual uint64_t GetTimestamp(uint32_t __attribute__((unused)) positionInc); 37 protected: 38 uint32_t sizePerPos_; 39 uint32_t sampleRate_ = 0; 40 AudioSampleFormat format_ = AudioSampleFormat::INVALID_WIDTH; 41 uint32_t channel_ = 0; 42 43 std::vector<int32_t> sessionIdList_; 44 std::mutex clockMtx_; 45 }; 46 47 // AudioCapturerSourceTsRecorder is a RAII tool to help audio source renew the timestamp. 48 class AudioCapturerSourceTsRecorder { 49 public: AudioCapturerSourceTsRecorder(uint64_t & replyBytes,std::shared_ptr<AudioSourceClock> clock)50 AudioCapturerSourceTsRecorder(uint64_t &replyBytes, std::shared_ptr<AudioSourceClock> clock) 51 : replyBytes_(replyBytes), clock_(clock) {} 52 53 ~AudioCapturerSourceTsRecorder(); 54 private: 55 uint64_t &replyBytes_; 56 std::shared_ptr<AudioSourceClock> clock_; 57 }; 58 59 } // namespace AudioStandard 60 } // namespace OHOS 61 62 #endif // CAPTURER_CLOCK_H 63