1 2 /* 3 * Copyright (C) 2023 Huawei Device Co., Ltd. 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 #ifndef CACHE_BUFFER_H 17 #define CACHE_BUFFER_H 18 19 #include <deque> 20 #include "audio_renderer.h" 21 #include "audio_info.h" 22 #include "audio_stream_info.h" 23 #include "audio_errors.h" 24 #include "isoundpool.h" 25 #include "media_description.h" 26 #include "cpp/mutex.h" 27 #include "media_dfx.h" 28 #include "thread_pool.h" 29 #include "audio_system_manager.h" 30 31 namespace OHOS { 32 namespace Media { 33 using namespace MediaAVCodec; 34 35 struct AudioBufferEntry { AudioBufferEntryAudioBufferEntry36 AudioBufferEntry(uint8_t *buf, int32_t length) : buffer(std::move(buf)), size(length) {} ~AudioBufferEntryAudioBufferEntry37 ~AudioBufferEntry() 38 { 39 if (buffer != nullptr) { 40 delete[] buffer; 41 buffer = nullptr; 42 } 43 } 44 uint8_t *buffer; 45 int32_t size; 46 }; 47 48 class CacheBuffer : 49 public AudioStandard::AudioRendererWriteCallback, 50 public AudioStandard::AudioRendererFirstFrameWritingCallback, 51 public AudioStandard::AudioRendererCallback, 52 public std::enable_shared_from_this<CacheBuffer> { 53 public: 54 CacheBuffer(const Format &trackFormat, 55 const std::deque<std::shared_ptr<AudioBufferEntry>> &cacheData, 56 const size_t &cacheDataTotalSize, 57 const int32_t &soundID, const int32_t &streamID, 58 std::shared_ptr<ThreadPool> cacheBufferStopThreadPool); 59 ~CacheBuffer(); 60 void OnWriteData(size_t length) override; 61 void OnFirstFrameWriting(uint64_t latency) override; 62 void OnInterrupt(const AudioStandard::InterruptEvent &interruptEvent) override; 63 void OnStateChange(const AudioStandard::RendererState state, 64 const AudioStandard::StateChangeCmdType cmdType) override; 65 int32_t PreparePlay(const int32_t streamID, const AudioStandard::AudioRendererInfo audioRendererInfo, 66 const PlayParams playParams); 67 int32_t DoPlay(const int32_t streamID); 68 int32_t Release(); 69 int32_t Stop(const int32_t streamID); 70 int32_t SetVolume(const int32_t streamID, const float leftVolume, const float rightVolume); 71 int32_t SetRate(const int32_t streamID, const AudioStandard::AudioRendererRate renderRate); 72 int32_t SetPriority(const int32_t streamID, const int32_t priority); 73 int32_t SetLoop(const int32_t streamID, const int32_t loop); 74 int32_t SetParallelPlayFlag(const int32_t streamID, const bool parallelPlayFlag); 75 int32_t SetCallback(const std::shared_ptr<ISoundPoolCallback> &callback); 76 int32_t SetCacheBufferCallback(const std::shared_ptr<ISoundPoolCallback> &callback); 77 int32_t SetFrameWriteCallback(const std::shared_ptr<ISoundPoolFrameWriteCallback> &callback); 78 IsRunning()79 bool IsRunning() const 80 { 81 return isRunning_.load(); 82 } GetSoundID()83 int32_t GetSoundID() const 84 { 85 return soundID_; 86 } GetStreamID()87 int32_t GetStreamID() const 88 { 89 return streamID_; 90 } GetPriority()91 int32_t GetPriority() const 92 { 93 return priority_; 94 } 95 96 private: 97 static constexpr int32_t NORMAL_PLAY_RENDERER_FLAGS = 0; 98 static constexpr int32_t LOW_LATENCY_PLAY_RENDERER_FLAGS = 1; 99 100 std::unique_ptr<AudioStandard::AudioRenderer> CreateAudioRenderer(const int32_t streamID, 101 const AudioStandard::AudioRendererInfo audioRendererInfo, const PlayParams playParams); 102 void PrepareAudioRenderer(std::unique_ptr<AudioStandard::AudioRenderer> &audioRenderer); 103 void DealAudioRendererParams(AudioStandard::AudioRendererOptions &rendererOptions, 104 const AudioStandard::AudioRendererInfo &audioRendererInfo); 105 int32_t ReCombineCacheData(); 106 int32_t DealPlayParamsBeforePlay(const int32_t streamID, const PlayParams playParams); 107 static AudioStandard::AudioRendererRate CheckAndAlignRendererRate(const int32_t rate); 108 void DealWriteData(size_t length); 109 bool IsAudioRendererCanMix(const AudioStandard::AudioRendererInfo &audioRendererInfo); 110 111 Format trackFormat_; 112 std::deque<std::shared_ptr<AudioBufferEntry>> cacheData_; 113 std::shared_ptr<AudioBufferEntry> fullCacheData_; 114 size_t cacheDataTotalSize_; 115 int32_t soundID_; 116 int32_t streamID_; 117 AudioStandard::AudioSampleFormat sampleFormat_ = AudioStandard::AudioSampleFormat::INVALID_WIDTH; 118 119 // use for save audiobuffer 120 std::unique_ptr<AudioStandard::AudioRenderer> audioRenderer_; 121 std::atomic<bool> isRunning_ = false; 122 std::shared_ptr<ISoundPoolCallback> callback_ = nullptr; 123 std::shared_ptr<ISoundPoolCallback> cacheBufferCallback_ = nullptr; 124 std::shared_ptr<ISoundPoolFrameWriteCallback> frameWriteCallback_ = nullptr; 125 ffrt::mutex cacheBufferLock_; 126 std::weak_ptr<ThreadPool> cacheBufferStopThreadPool_; 127 128 int32_t loop_ = 0; 129 int32_t priority_ = 0; 130 int32_t rendererFlags_ = NORMAL_PLAY_RENDERER_FLAGS; 131 132 size_t cacheDataFrameIndex_; 133 int32_t havePlayedCount_; 134 }; 135 } // namespace Media 136 } // namespace OHOS 137 #endif // CACHE_BUFFER_H 138