mirror of
https://github.com/openharmony/multimedia_camera_standard.git
synced 2026-07-01 20:44:17 -04:00
mamingshuai
77 lines
2.0 KiB
C++
77 lines
2.0 KiB
C++
/*
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* Copyright (C) 2021 Huawei Device Co., Ltd.
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @addtogroup MultiMedia_CameraDeviceCallback
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* @{
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*
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* @brief Defines the <b>CameraDeviceCallback</b> class to response to device changes.
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*
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* @since 1.0
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* @version 1.0
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*/
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/**
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* @file camera_device_callback.h
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*
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* @brief Declares functions in the <b>CameraDeviceCallback</b> class to response to device changes.
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*
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*
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* @since 1.0
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* @version 1.0
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*/
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#ifndef OHOS_CAMERA_DEVICE_CALLBACK_H
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#define OHOS_CAMERA_DEVICE_CALLBACK_H
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#include <string>
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namespace OHOS {
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namespace Media {
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constexpr int32_t CAMERA_DEVICE_STATE_AVAILABLE = 0;
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constexpr int32_t CAMERA_DEVICE_STATE_UNAVAILABLE = 1;
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/**
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*
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* @brief Provides functions to response to device changes.
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*
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*
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* @since 1.0
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* @version 1.0
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*/
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class CameraDeviceCallback {
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public:
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/**
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* @brief A constructor used to create a <b>CameraDeviceCallback</b> instance.
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*
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*/
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CameraDeviceCallback() = default;
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/**
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* @brief A destructor used to delete the <b>CameraDeviceCallback</b> instance.
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*
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*/
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virtual ~CameraDeviceCallback() = default;
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/**
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* @brief Called when the camera state changes.
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*
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* @param cameraId Indicates the camera ID.
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* @param status Indicates the camera state.
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*/
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virtual void OnCameraStatus(const std::string cameraId, int32_t status) {}
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};
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} // namespace Media
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} // namespace OHOS
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#endif // OHOS_CAMERA_DEVICE_CALLBACK_H
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