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/*
* Copyright 2016 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef HDR_PLUS_CLIENT_LISTENER_H
#define HDR_PLUS_CLIENT_LISTENER_H
#include "hardware/camera3.h"
#include "HdrPlusTypes.h"
namespace android {
class HdrPlusClient;
/*
* HdrPlusClientListener defines callbacks that will be invoked by HdrPlusClient for events like
* returning capture results.
*/
class HdrPlusClientListener {
public:
virtual ~HdrPlusClientListener() {};
/*
* Invoked when an HDR+ client is opened successfully via
* EaselManagerClient::openHdrPlusClientAsync.
*/
virtual void onOpened(std::unique_ptr<HdrPlusClient> client) = 0;
/*
* Invoked when opening an HDR+ client failed via EaselManagerClient::openHdrPlusClientAsync.
*
* err is
* -EEXIST: if an HDR+ client is already opened.
* -ENODEV: if opening an HDR+ failed due to a serious error.
*/
virtual void onOpenFailed(status_t err) = 0;
/*
* Invoked when HDR+ client is in a fatal error state. After receiving this error, calls to HDR+
* client will not succeed and HDR+ client should be closed.
*/
virtual void onFatalError() = 0;
/*
* Invoked when a CaptureResult, containing a subset or all output buffers for a CaptureRequest,
* is received. This may be invoked multiple times for one CaptureRequest but each CaptureResult
* will contain distinct output buffers that have not been received yet.
*/
virtual void onCaptureResult(pbcamera::CaptureResult *result,
const camera_metadata_t &resultMetadata) = 0;
/*
* Invoked when a failed CaptureResult, containing a subset or all output buffers for a
* CaptureRequest, is received. Output buffers in a failed capture result may contain garbage
* data. This may be invoked multiple times for one CaptureRequest but each CaptureResult
* will contain distinct output buffers that have not been received yet.
*/
virtual void onFailedCaptureResult(pbcamera::CaptureResult *failedResult) = 0;
/*
* Invoked when HDR+ processing has started for a request. requestId is the ID of the request.
* apSensorTimestampNs is the AP sensor timestamp of the base frame, in nanoseconds.
*/
virtual void onShutter(uint32_t requestId, int64_t apSensorTimestampNs) = 0;
/*
* Invoked when Easel is ready to take another HDR+ request.
*/
virtual void onNextCaptureReady(uint32_t requestId) = 0;
/*
* Invoked when the postview for a request is ready.
*/
virtual void onPostview(uint32_t requestId, std::unique_ptr<std::vector<uint8_t>> postview,
uint32_t width, uint32_t height, uint32_t stride, int32_t format) = 0;
};
} // namespace android
#endif // HDR_PLUS_CLIENT_LISTENER_H
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