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.h"
28 
29 namespace OHOS {
30 namespace Media {
31 struct AVMetadataExtractorAsyncContext;
32 class AVMetadataExtractorNapi {
33 public:
34     __attribute__((visibility("default"))) static napi_value Init(napi_env env, napi_value exports);
35 
36 private:
37     static napi_value Constructor(napi_env env, napi_callback_info info);
38     static void Destructor(napi_env env, void *nativeObject, void *finalize);
39     static napi_value JsCreateAVMetadataExtractor(napi_env env, napi_callback_info info);
40     static napi_value JsResolveMetadata(napi_env env, napi_callback_info info);
41     static napi_value JsFetchArtPicture(napi_env env, napi_callback_info info);
42     static napi_value JsRelease(napi_env env, napi_callback_info info);
43     /**
44      * fdSrc: AVFileDescriptor
45      */
46     static napi_value JsGetAVFileDescriptor(napi_env env, napi_callback_info info);
47     static napi_value JsSetAVFileDescriptor(napi_env env, napi_callback_info info);
48     /**
49      * dataSrc: DataSrcDescriptor
50      */
51     static napi_value JsSetDataSrc(napi_env env, napi_callback_info info);
52     static napi_value JsGetDataSrc(napi_env env, napi_callback_info info);
53 
54     static AVMetadataExtractorNapi *GetJsInstance(napi_env env, napi_callback_info info);
55     static AVMetadataExtractorNapi *GetJsInstanceWithParameter(
56         napi_env env, napi_callback_info info, size_t &argc, napi_value *argv);
57     static void FetchArtPictureComplete(napi_env env, napi_status status, void *data);
58     static void CommonCallbackRoutine(
59         napi_env env, AVMetadataExtractorAsyncContext *&asyncContext, const napi_value &valueParam);
60     static void ResolveMetadataComplete(napi_env env, napi_status status, void *data);
61     static void GetTimeByFrameIndexComplete(napi_env env, napi_status status, void *data);
62     static void GetFrameIndexByTimeComplete(napi_env env, napi_status status, void *data);
63     static napi_value JSGetTimeByFrameIndex(napi_env env, napi_callback_info info);
64     static napi_value JSGetFrameIndexByTime(napi_env env, napi_callback_info info);
65 
66     AVMetadataExtractorNapi();
67     ~AVMetadataExtractorNapi();
68 
69 private:
70     static thread_local napi_ref constructor_;
71     napi_env env_ = nullptr;
72     std::shared_ptr<AVMetadataHelper> helper_ = nullptr;
73     std::shared_ptr<HelperDataSourceCallback> dataSrcCb_ = nullptr;
74     struct AVFileDescriptor fileDescriptor_;
75     struct AVDataSrcDescriptor dataSrcDescriptor_;
76     std::mutex mutex_;
77     PixelMapParams param_;
78     HelperState state_ { HelperState::HELPER_STATE_IDLE };
79 };
80 
81 struct AVMetadataExtractorAsyncContext : public MediaAsyncContext {
AVMetadataExtractorAsyncContextAVMetadataExtractorAsyncContext82     explicit AVMetadataExtractorAsyncContext(napi_env env) : MediaAsyncContext(env) {}
83     ~AVMetadataExtractorAsyncContext() = default;
84 
85     AVMetadataExtractorNapi *napi = nullptr;
86     std::string opt_ = "";
87     std::shared_ptr<Meta> metadata_ = nullptr;
88     std::shared_ptr<PixelMap> artPicture_ = nullptr;
89     std::shared_ptr<AVMetadataHelper> innerHelper_ = nullptr;
90     int32_t status;
91     uint64_t timeStamp_;
92     uint32_t index_;
93 };
94 }  // namespace Media
95 }  // namespace OHOS
96 #endif  // AV_META_DATA_EXTRACTOR_NAPI_H