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/*
* Copyright (C) 2013 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 ANDROID_SERVERS_CAMERA_CAMERA2_PROFRAMEPROCESSOR_H
#define ANDROID_SERVERS_CAMERA_CAMERA2_PROFRAMEPROCESSOR_H
#include <utils/Thread.h>
#include <utils/String16.h>
#include <utils/Vector.h>
#include <utils/KeyedVector.h>
#include <utils/List.h>
#include <camera/CameraMetadata.h>
namespace android {
class CameraDeviceBase;
namespace camera2 {
/* Output frame metadata processing thread. This thread waits for new
* frames from the device, and analyzes them as necessary.
*/
class FrameProcessorBase: public Thread {
public:
FrameProcessorBase(wp<CameraDeviceBase> device);
virtual ~FrameProcessorBase();
struct FilteredListener: virtual public RefBase {
virtual void onFrameAvailable(int32_t requestId,
const CameraMetadata &frame) = 0;
};
// Register a listener for a range of IDs [minId, maxId). Multiple listeners
// can be listening to the same range.
// QUIRK: sendPartials controls whether partial results will be sent.
status_t registerListener(int32_t minId, int32_t maxId,
wp<FilteredListener> listener,
bool quirkSendPartials = true);
status_t removeListener(int32_t minId, int32_t maxId,
wp<FilteredListener> listener);
void dump(int fd, const Vector<String16>& args);
protected:
static const nsecs_t kWaitDuration = 10000000; // 10 ms
wp<CameraDeviceBase> mDevice;
virtual bool threadLoop();
Mutex mInputMutex;
Mutex mLastFrameMutex;
struct RangeListener {
int32_t minId;
int32_t maxId;
wp<FilteredListener> listener;
bool quirkSendPartials;
};
List<RangeListener> mRangeListeners;
void processNewFrames(const sp<CameraDeviceBase> &device);
virtual bool processSingleFrame(CameraMetadata &frame,
const sp<CameraDeviceBase> &device);
status_t processListeners(const CameraMetadata &frame,
const sp<CameraDeviceBase> &device);
CameraMetadata mLastFrame;
};
}; //namespace camera2
}; //namespace android
#endif
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