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/*
* Copyright (C) 2012 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_FRAMEPROCESSOR_H
#define ANDROID_SERVERS_CAMERA_CAMERA2_FRAMEPROCESSOR_H
#include <utils/Thread.h>
#include <utils/String16.h>
#include <utils/Vector.h>
#include <utils/KeyedVector.h>
#include "CameraMetadata.h"
struct camera_frame_metadata;
namespace android {
class Camera2Client;
namespace camera2 {
/* Output frame metadata processing thread. This thread waits for new
* frames from the device, and analyzes them as necessary.
*/
class FrameProcessor: public Thread {
public:
FrameProcessor(wp<Camera2Client> client);
~FrameProcessor();
struct FilteredListener: virtual public RefBase {
// Listener may take ownership of frame
virtual void onFrameAvailable(int32_t frameId, CameraMetadata &frame) = 0;
};
// Register a listener for a specific frame ID (android.request.id).
// De-registers any existing listeners for that ID
status_t registerListener(int32_t id, wp<FilteredListener> listener);
status_t removeListener(int32_t id);
void dump(int fd, const Vector<String16>& args);
private:
static const nsecs_t kWaitDuration = 10000000; // 10 ms
wp<Camera2Client> mClient;
virtual bool threadLoop();
Mutex mInputMutex;
KeyedVector<int32_t, wp<FilteredListener> > mListeners;
void processNewFrames(sp<Camera2Client> &client);
status_t processFaceDetect(const CameraMetadata &frame,
sp<Camera2Client> &client);
status_t processListener(CameraMetadata &frame,
sp<Camera2Client> &client);
CameraMetadata mLastFrame;
int mLastFrameNumberOfFaces;
// Emit FaceDetection event to java if faces changed
void callbackFaceDetection(sp<Camera2Client> client,
camera_frame_metadata &metadata);
};
}; //namespace camera2
}; //namespace android
#endif
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