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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_CALLBACKPROCESSOR_H
#define ANDROID_SERVERS_CAMERA_CAMERA2_CALLBACKPROCESSOR_H
#include <utils/Thread.h>
#include <utils/String16.h>
#include <utils/Vector.h>
#include <utils/Mutex.h>
#include <utils/Condition.h>
#include <gui/CpuConsumer.h>
#include "Parameters.h"
#include "camera/CameraMetadata.h"
#include "Camera2Heap.h"
namespace android {
class Camera2Client;
class CameraDeviceBase;
namespace camera2 {
/***
* Still image capture output image processing
*/
class CallbackProcessor:
public Thread, public CpuConsumer::FrameAvailableListener {
public:
CallbackProcessor(sp<Camera2Client> client);
~CallbackProcessor();
void onFrameAvailable();
status_t updateStream(const Parameters &params);
status_t deleteStream();
int getStreamId() const;
void dump(int fd, const Vector<String16>& args) const;
private:
static const nsecs_t kWaitDuration = 10000000; // 10 ms
wp<Camera2Client> mClient;
wp<CameraDeviceBase> mDevice;
int mId;
mutable Mutex mInputMutex;
bool mCallbackAvailable;
Condition mCallbackAvailableSignal;
enum {
NO_STREAM = -1
};
int mCallbackStreamId;
static const size_t kCallbackHeapCount = 6;
sp<CpuConsumer> mCallbackConsumer;
sp<ANativeWindow> mCallbackWindow;
sp<Camera2Heap> mCallbackHeap;
int mCallbackHeapId;
size_t mCallbackHeapHead, mCallbackHeapFree;
virtual bool threadLoop();
status_t processNewCallback(sp<Camera2Client> &client);
// Used when shutting down
status_t discardNewCallback();
};
}; //namespace camera2
}; //namespace android
#endif