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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_CAMERA2CLIENT_H
#define ANDROID_SERVERS_CAMERA_CAMERA2CLIENT_H
#include "Camera2Device.h"
#include "CameraService.h"
#include "camera2/Parameters.h"
#include "camera2/FrameProcessor.h"
#include "camera2/StreamingProcessor.h"
#include "camera2/JpegProcessor.h"
#include "camera2/ZslProcessor.h"
#include "camera2/CaptureSequencer.h"
#include "camera2/CallbackProcessor.h"
namespace android {
class IMemory;
/**
* Implements the android.hardware.camera API on top of
* camera device HAL version 2.
*/
class Camera2Client :
public CameraService::Client,
public Camera2Device::NotificationListener
{
public:
/**
* ICamera interface (see ICamera for details)
*/
virtual void disconnect();
virtual status_t connect(const sp<ICameraClient>& client);
virtual status_t lock();
virtual status_t unlock();
virtual status_t setPreviewDisplay(const sp<Surface>& surface);
virtual status_t setPreviewTexture(
const sp<ISurfaceTexture>& surfaceTexture);
virtual void setPreviewCallbackFlag(int flag);
virtual status_t startPreview();
virtual void stopPreview();
virtual bool previewEnabled();
virtual status_t storeMetaDataInBuffers(bool enabled);
virtual status_t startRecording();
virtual void stopRecording();
virtual bool recordingEnabled();
virtual void releaseRecordingFrame(const sp<IMemory>& mem);
virtual status_t autoFocus();
virtual status_t cancelAutoFocus();
virtual status_t takePicture(int msgType);
virtual status_t setParameters(const String8& params);
virtual String8 getParameters() const;
virtual status_t sendCommand(int32_t cmd, int32_t arg1, int32_t arg2);
/**
* Interface used by CameraService
*/
Camera2Client(const sp<CameraService>& cameraService,
const sp<ICameraClient>& cameraClient,
int cameraId,
int cameraFacing,
int clientPid,
int servicePid);
virtual ~Camera2Client();
status_t initialize(camera_module_t *module);
virtual status_t dump(int fd, const Vector<String16>& args);
/**
* Interface used by Camera2Device
*/
virtual void notifyError(int errorCode, int arg1, int arg2);
virtual void notifyShutter(int frameNumber, nsecs_t timestamp);
virtual void notifyAutoFocus(uint8_t newState, int triggerId);
virtual void notifyAutoExposure(uint8_t newState, int triggerId);
virtual void notifyAutoWhitebalance(uint8_t newState, int triggerId);
/**
* Interface used by independent components of Camera2Client.
*/
int getCameraId() const;
const sp<Camera2Device>& getCameraDevice();
const sp<CameraService>& getCameraService();
camera2::SharedParameters& getParameters();
int getPreviewStreamId() const;
int getCaptureStreamId() const;
int getCallbackStreamId() const;
int getRecordingStreamId() const;
int getZslStreamId() const;
status_t registerFrameListener(int32_t minId, int32_t maxId,
wp<camera2::FrameProcessor::FilteredListener> listener);
status_t removeFrameListener(int32_t minId, int32_t maxId,
wp<camera2::FrameProcessor::FilteredListener> listener);
status_t stopStream();
// Simple class to ensure that access to ICameraClient is serialized by
// requiring mCameraClientLock to be locked before access to mCameraClient
// is possible.
class SharedCameraClient {
public:
class Lock {
public:
Lock(SharedCameraClient &client);
~Lock();
sp<ICameraClient> &mCameraClient;
private:
SharedCameraClient &mSharedClient;
};
SharedCameraClient(const sp<ICameraClient>& client);
SharedCameraClient& operator=(const sp<ICameraClient>& client);
void clear();
private:
sp<ICameraClient> mCameraClient;
mutable Mutex mCameraClientLock;
} mSharedCameraClient;
static size_t calculateBufferSize(int width, int height,
int format, int stride);
static const int32_t kPreviewRequestIdStart = 10000000;
static const int32_t kPreviewRequestIdEnd = 20000000;
static const int32_t kRecordingRequestIdStart = 20000000;
static const int32_t kRecordingRequestIdEnd = 30000000;
static const int32_t kCaptureRequestIdStart = 30000000;
static const int32_t kCaptureRequestIdEnd = 40000000;
private:
/** ICamera interface-related private members */
// Mutex that must be locked by methods implementing the ICamera interface.
// Ensures serialization between incoming ICamera calls. All methods below
// that append 'L' to the name assume that mICameraLock is locked when
// they're called
mutable Mutex mICameraLock;
typedef camera2::Parameters Parameters;
typedef camera2::CameraMetadata CameraMetadata;
status_t setPreviewWindowL(const sp<IBinder>& binder,
sp<ANativeWindow> window);
status_t startPreviewL(Parameters ¶ms, bool restart);
void stopPreviewL();
status_t startRecordingL(Parameters ¶ms, bool restart);
bool recordingEnabledL();
// Individual commands for sendCommand()
status_t commandStartSmoothZoomL();
status_t commandStopSmoothZoomL();
status_t commandSetDisplayOrientationL(int degrees);
status_t commandEnableShutterSoundL(bool enable);
status_t commandPlayRecordingSoundL();
status_t commandStartFaceDetectionL(int type);
status_t commandStopFaceDetectionL(Parameters ¶ms);
status_t commandEnableFocusMoveMsgL(bool enable);
status_t commandPingL();
status_t commandSetVideoBufferCountL(size_t count);
// Current camera device configuration
camera2::SharedParameters mParameters;
/** Camera device-related private members */
void setPreviewCallbackFlagL(Parameters ¶ms, int flag);
status_t updateRequests(Parameters ¶ms);
// Used with stream IDs
static const int NO_STREAM = -1;
sp<camera2::FrameProcessor> mFrameProcessor;
/* Preview/Recording related members */
sp<IBinder> mPreviewSurface;
sp<camera2::StreamingProcessor> mStreamingProcessor;
/** Preview callback related members */
sp<camera2::CallbackProcessor> mCallbackProcessor;
/* Still image capture related members */
sp<camera2::CaptureSequencer> mCaptureSequencer;
sp<camera2::JpegProcessor> mJpegProcessor;
sp<camera2::ZslProcessor> mZslProcessor;
/** Notification-related members */
bool mAfInMotion;
/** Camera2Device instance wrapping HAL2 entry */
sp<Camera2Device> mDevice;
/** Utility members */
// Wait until the camera device has received the latest control settings
status_t syncWithDevice();
// Verify that caller is the owner of the camera
status_t checkPid(const char *checkLocation) const;
};
}; // namespace android
#endif
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