1 /* 2 * Copyright (c) 2021-2022 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 VIDEO_OUTPUT_NAPI_H_ 17 #define VIDEO_OUTPUT_NAPI_H_ 18 19 #include "camera_napi_template_utils.h" 20 #include "camera_napi_utils.h" 21 #include "input/camera_manager.h" 22 #include "listener_base.h" 23 #include "output/video_output.h" 24 #include "surface_utils.h" 25 26 namespace OHOS { 27 namespace CameraStandard { 28 static const char CAMERA_VIDEO_OUTPUT_NAPI_CLASS_NAME[] = "VideoOutput"; 29 static const std::string CONST_VIDEO_FRAME_START = "frameStart"; 30 static const std::string CONST_VIDEO_FRAME_END = "frameEnd"; 31 static const std::string CONST_VIDEO_FRAME_ERROR = "error"; 32 static const std::string CONST_VIDEO_DEFERRED_ENHANCEMENT = "deferredVideoEnhancementInfo"; 33 34 struct VideoCallbackInfo { 35 int32_t frameCount = 0; 36 int32_t errorCode = 0; 37 bool isDeferredVideoEnhancementAvailable = false; 38 std::string videoId = ""; 39 }; 40 41 enum VideoOutputEventType { 42 VIDEO_FRAME_START, 43 VIDEO_FRAME_END, 44 VIDEO_FRAME_ERROR, 45 VIDEO_INVALID_TYPE, 46 VIDEO_DEFERRED_ENHANCEMENT 47 }; 48 49 static EnumHelper<VideoOutputEventType> VideoOutputEventTypeHelper({ 50 {VIDEO_FRAME_START, CONST_VIDEO_FRAME_START}, 51 {VIDEO_FRAME_END, CONST_VIDEO_FRAME_END}, 52 {VIDEO_FRAME_ERROR, CONST_VIDEO_FRAME_ERROR}, 53 {VIDEO_DEFERRED_ENHANCEMENT, CONST_VIDEO_DEFERRED_ENHANCEMENT}, 54 }, 55 VideoOutputEventType::VIDEO_INVALID_TYPE 56 ); 57 58 class VideoCallbackListener : public VideoStateCallback, 59 public ListenerBase, 60 public std::enable_shared_from_this<VideoCallbackListener> { 61 public: 62 explicit VideoCallbackListener(napi_env env); 63 ~VideoCallbackListener() = default; 64 65 void OnFrameStarted() const override; 66 void OnFrameEnded(const int32_t frameCount) const override; 67 void OnError(const int32_t errorCode) const override; 68 void OnDeferredVideoEnhancementInfo(const CaptureEndedInfoExt info) const override; 69 70 private: 71 void UpdateJSCallback(VideoOutputEventType eventType, const VideoCallbackInfo& info) const; 72 void UpdateJSCallbackAsync(VideoOutputEventType eventType, const VideoCallbackInfo& info) const; 73 void ExecuteOnDeferredVideoCb(const VideoCallbackInfo& info) const; 74 }; 75 76 struct VideoOutputCallbackInfo { 77 VideoOutputEventType eventType_; 78 VideoCallbackInfo info_; 79 weak_ptr<const VideoCallbackListener> listener_; VideoOutputCallbackInfoVideoOutputCallbackInfo80 VideoOutputCallbackInfo(VideoOutputEventType eventType, VideoCallbackInfo info, 81 shared_ptr<const VideoCallbackListener> listener) 82 : eventType_(eventType), info_(info), listener_(listener) {} 83 }; 84 85 class VideoOutputNapi : public CameraNapiEventEmitter<VideoOutputNapi> { 86 public: 87 static napi_value Init(napi_env env, napi_value exports); 88 static napi_value CreateVideoOutput(napi_env env, VideoProfile& profile, std::string surfaceId); 89 static napi_value CreateVideoOutput(napi_env env, std::string surfaceId); 90 static bool IsVideoOutput(napi_env env, napi_value obj); 91 static napi_value GetActiveProfile(napi_env env, napi_callback_info info); 92 static napi_value SetFrameRate(napi_env env, napi_callback_info info); 93 static napi_value GetActiveFrameRate(napi_env env, napi_callback_info info); 94 static napi_value GetSupportedFrameRates(napi_env, napi_callback_info info); 95 static napi_value On(napi_env env, napi_callback_info info); 96 static napi_value Once(napi_env env, napi_callback_info info); 97 static napi_value Off(napi_env env, napi_callback_info info); 98 static napi_value IsMirrorSupported(napi_env env, napi_callback_info info); 99 static napi_value EnableMirror(napi_env env, napi_callback_info info); 100 static napi_value GetSupportedVideoMetaTypes(napi_env env, napi_callback_info info); 101 static napi_value AttachMetaSurface(napi_env env, napi_callback_info info); 102 static napi_value IsAutoDeferredVideoEnhancementSupported(napi_env env, napi_callback_info info); 103 static napi_value IsAutoDeferredVideoEnhancementEnabled(napi_env env, napi_callback_info info); 104 static napi_value EnableAutoDeferredVideoEnhancement(napi_env env, napi_callback_info info); 105 VideoOutputNapi(); 106 ~VideoOutputNapi() override; 107 sptr<VideoOutput> GetVideoOutput(); 108 const EmitterFunctions& GetEmitterFunctions() override; 109 static napi_value GetVideoRotation(napi_env env, napi_callback_info info); 110 111 private: 112 static void VideoOutputNapiDestructor(napi_env env, void* nativeObject, void* finalize_hint); 113 static napi_value VideoOutputNapiConstructor(napi_env env, napi_callback_info info); 114 115 static napi_value Start(napi_env env, napi_callback_info info); 116 static napi_value Stop(napi_env env, napi_callback_info info); 117 static napi_value Release(napi_env env, napi_callback_info info); 118 119 void RegisterFrameStartCallbackListener(const std::string& eventName, napi_env env, napi_value callback, 120 const std::vector<napi_value>& args, bool isOnce); 121 void UnregisterFrameStartCallbackListener( 122 const std::string& eventName, napi_env env, napi_value callback, const std::vector<napi_value>& args); 123 void RegisterFrameEndCallbackListener(const std::string& eventName, napi_env env, napi_value callback, 124 const std::vector<napi_value>& args, bool isOnce); 125 void UnregisterFrameEndCallbackListener( 126 const std::string& eventName, napi_env env, napi_value callback, const std::vector<napi_value>& args); 127 void RegisterErrorCallbackListener(const std::string& eventName, napi_env env, napi_value callback, 128 const std::vector<napi_value>& args, bool isOnce); 129 void UnregisterErrorCallbackListener( 130 const std::string& eventName, napi_env env, napi_value callback, const std::vector<napi_value>& args); 131 void RegisterDeferredVideoCallbackListener(const std::string& eventName, napi_env env, napi_value callback, 132 const std::vector<napi_value>& args, bool isOnce); 133 void UnregisterDeferredVideoCallbackListener( 134 const std::string& eventName, napi_env env, napi_value callback, const std::vector<napi_value>& args); 135 136 static thread_local napi_ref sConstructor_; 137 static thread_local sptr<VideoOutput> sVideoOutput_; 138 139 napi_env env_; 140 sptr<VideoOutput> videoOutput_; 141 std::shared_ptr<VideoCallbackListener> videoCallback_; 142 static thread_local uint32_t videoOutputTaskId; 143 }; 144 145 struct VideoOutputAsyncContext : public AsyncContext { VideoOutputAsyncContextVideoOutputAsyncContext146 VideoOutputAsyncContext(std::string funcName, int32_t taskId) : AsyncContext(funcName, taskId) {}; 147 VideoOutputNapi* objectInfo = nullptr; 148 std::string errorMsg; 149 std::vector<int32_t> vecFrameRateRangeList; 150 }; 151 } // namespace CameraStandard 152 } // namespace OHOS 153 #endif /* VIDEO_OUTPUT_NAPI_H_ */ 154