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_META_DATA_EXTRACTOR_NAPI_H 17 #define AV_META_DATA_EXTRACTOR_NAPI_H 18 19 #include "media_errors.h" 20 #include "napi/native_api.h" 21 #include "napi/native_node_api.h" 22 #include "helper_data_source_callback.h" 23 #include "common_napi.h" 24 #include "audio_info.h" 25 #include "audio_effect.h" 26 #include "task_queue.h" 27 #include "avmetadatahelper_callback.h" 28 29 namespace OHOS { 30 namespace Media { 31 struct AVMetadataExtractorAsyncContext; 32 using TaskRet = std::pair<int32_t, std::string>; 33 class AVMetadataExtractorNapi : public AVMetadataHelperNotify { 34 public: 35 __attribute__((visibility("default"))) static napi_value Init(napi_env env, napi_value exports); 36 37 private: 38 static napi_value Constructor(napi_env env, napi_callback_info info); 39 static void Destructor(napi_env env, void *nativeObject, void *finalize); 40 static napi_value JsCreateAVMetadataExtractor(napi_env env, napi_callback_info info); 41 static napi_value JsResolveMetadata(napi_env env, napi_callback_info info); 42 static napi_value JsFetchArtPicture(napi_env env, napi_callback_info info); 43 static napi_value JsRelease(napi_env env, napi_callback_info info); 44 /** 45 * url: string 46 */ 47 static napi_value JsSetUrl(napi_env env, napi_callback_info info); 48 static napi_value JsGetUrl(napi_env env, napi_callback_info info); 49 /** 50 * fdSrc: AVFileDescriptor 51 */ 52 static napi_value JsGetAVFileDescriptor(napi_env env, napi_callback_info info); 53 static napi_value JsSetAVFileDescriptor(napi_env env, napi_callback_info info); 54 /** 55 * dataSrc: DataSrcDescriptor 56 */ 57 static napi_value JsSetDataSrc(napi_env env, napi_callback_info info); 58 static napi_value JsGetDataSrc(napi_env env, napi_callback_info info); 59 60 static AVMetadataExtractorNapi* GetJsInstance(napi_env env, napi_callback_info info); 61 static AVMetadataExtractorNapi* GetJsInstanceWithParameter(napi_env env, napi_callback_info info, 62 size_t &argc, napi_value *argv); 63 static void FetchArtPictureComplete(napi_env env, napi_status status, void *data); 64 static void CommonCallbackRoutine(napi_env env, AVMetadataExtractorAsyncContext* &asyncContext, 65 const napi_value &valueParam); 66 static void ResolveMetadataComplete(napi_env env, napi_status status, void *data); 67 68 AVMetadataExtractorNapi(); 69 ~AVMetadataExtractorNapi() override; 70 void SaveCallbackReference(const std::string &callbackName, std::shared_ptr<AutoRef> ref); 71 void ClearCallbackReference(); 72 void ClearCallbackReference(const std::string &callbackName); 73 void StartListenCurrentResource(); 74 void PauseListenCurrentResource(); 75 void OnErrorCb(MediaServiceExtErrCodeAPI9 errorCode, const std::string &errorMsg); 76 void SetSource(std::string url); 77 void ResetUserParameters(); 78 79 std::shared_ptr<TaskHandler<TaskRet>> ResolveMetadataTask( 80 std::unique_ptr<AVMetadataExtractorAsyncContext> &promiseCtx); 81 std::shared_ptr<TaskHandler<TaskRet>> FetchArtPictureTask( 82 std::unique_ptr<AVMetadataExtractorAsyncContext> &promiseCtx); 83 std::shared_ptr<TaskHandler<TaskRet>> ReleaseTask(); 84 void SetAVFileDescriptorTask(std::shared_ptr<AVMetadataHelper>& avHelper, AVFileDescriptor& fileDescriptor); 85 void SetDataSrcTask(std::shared_ptr<AVMetadataHelper>& avHelper, 86 std::shared_ptr<HelperDataSourceCallback>& dataSrcCb); 87 88 std::string GetCurrentState(); 89 void NotifyState(HelperStates state) override; 90 91 void StopTaskQue(); 92 void WaitTaskQueStop(); 93 94 std::condition_variable stopTaskQueCond_; 95 bool taskQueStoped_ = false; 96 97 static thread_local napi_ref constructor_; 98 napi_env env_ = nullptr; 99 std::shared_ptr<AVMetadataHelper> helper_ = nullptr; 100 std::shared_ptr<AVMetadataHelperCallback> extractorCb_ = nullptr; 101 std::shared_ptr<HelperDataSourceCallback> dataSrcCb_ = nullptr; 102 std::atomic<bool> isReleased_ = false; 103 std::string url_ = ""; 104 struct AVFileDescriptor fileDescriptor_; 105 struct AVDataSrcDescriptor dataSrcDescriptor_; 106 std::unique_ptr<TaskQueue> taskQue_; 107 std::mutex mutex_; 108 std::mutex taskMutex_; 109 std::map<std::string, std::shared_ptr<AutoRef>> refMap_; 110 HelperStates state_ = HELPER_IDLE; 111 std::condition_variable stateChangeCond_; 112 std::atomic<bool> stopWait_; 113 PixelMapParams param_; 114 }; 115 116 struct AVMetadataExtractorAsyncContext : public MediaAsyncContext { AVMetadataExtractorAsyncContextAVMetadataExtractorAsyncContext117 explicit AVMetadataExtractorAsyncContext(napi_env env) : MediaAsyncContext(env) {} 118 ~AVMetadataExtractorAsyncContext() = default; 119 120 AVMetadataExtractorNapi *napi = nullptr; 121 std::string opt_ = ""; 122 std::shared_ptr<TaskHandler<TaskRet>> task_ = nullptr; 123 std::shared_ptr<std::unordered_map<int32_t, std::string>> metadata_ = nullptr; 124 std::shared_ptr<PixelMap> artPicture_ = nullptr; 125 uint32_t status; 126 }; 127 } // namespace Media 128 } // namespace OHOS 129 #endif // AV_META_DATA_EXTRACTOR_NAPI_H