camera/ProCamera.cpp - android_frameworks_av - Gitiles

 /*
 **
 ** 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.
 */

 //#define LOG_NDEBUG 0
 #define LOG_TAG "ProCamera"
 #include <utils/Log.h>
 #include <utils/threads.h>
 #include <utils/Mutex.h>

 #include <binder/IPCThreadState.h>
 #include <binder/IServiceManager.h>
 #include <binder/IMemory.h>

 #include <camera/ProCamera.h>
 #include <camera/ICameraService.h>
 #include <camera/IProCameraUser.h>
 #include <camera/IProCameraCallbacks.h>

 #include <gui/IGraphicBufferProducer.h>
 #include <gui/Surface.h>

 namespace android {

 // client singleton for camera service binder interface
 Mutex ProCamera::mLock;
 sp<ICameraService> ProCamera::mCameraService;
 sp<ProCamera::DeathNotifier> ProCamera::mDeathNotifier;

 // establish binder interface to camera service
 const sp<ICameraService>& ProCamera::getCameraService()
 {
     Mutex::Autolock _l(mLock);
     if (mCameraService.get() == 0) {
         sp<IServiceManager> sm = defaultServiceManager();
         sp<IBinder> binder;
         do {
             binder = sm->getService(String16("media.camera"));
             if (binder != 0)
                 break;
             ALOGW("CameraService not published, waiting...");
             usleep(500000); // 0.5 s
         } while(true);
         if (mDeathNotifier == NULL) {
             mDeathNotifier = new DeathNotifier();
         }
         binder->linkToDeath(mDeathNotifier);
         mCameraService = interface_cast<ICameraService>(binder);
     }
     ALOGE_IF(mCameraService==0, "no CameraService!?");
     return mCameraService;
 }

 sp<ProCamera> ProCamera::connect(int cameraId)
 {
     ALOGV("connect");
     sp<ProCamera> c = new ProCamera();
     sp<IProCameraCallbacks> cl = c;
     const sp<ICameraService>& cs = getCameraService();
     if (cs != 0) {
         c->mCamera = cs->connect(cl, cameraId);
     }
     if (c->mCamera != 0) {
         c->mCamera->asBinder()->linkToDeath(c);
         c->mStatus = NO_ERROR;
     } else {
         c.clear();
     }
     return c;
 }

 void ProCamera::disconnect()
 {
     ALOGV("disconnect");
     if (mCamera != 0) {
         mCamera->disconnect();
         mCamera->asBinder()->unlinkToDeath(this);
         mCamera = 0;
     }
 }

 ProCamera::ProCamera()
 {
 }

 ProCamera::~ProCamera()
 {

 }

 sp<IProCameraUser> ProCamera::remote()
 {
     return mCamera;
 }

 void ProCamera::binderDied(const wp<IBinder>& who) {
     ALOGW("IProCameraUser died");
     notifyCallback(CAMERA_MSG_ERROR, CAMERA_ERROR_SERVER_DIED, 0);
 }

 void ProCamera::DeathNotifier::binderDied(const wp<IBinder>& who) {
     ALOGV("binderDied");
     Mutex::Autolock _l(ProCamera::mLock);
     ProCamera::mCameraService.clear();
     ALOGW("Camera service died!");
 }

 void ProCamera::setListener(const sp<ProCameraListener>& listener)
 {
     Mutex::Autolock _l(mLock);
     mListener = listener;
 }


 // callback from camera service
 void ProCamera::notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2)
 {
     sp<ProCameraListener> listener;
     {
         Mutex::Autolock _l(mLock);
         listener = mListener;
     }
     if (listener != NULL) {
         listener->notify(msgType, ext1, ext2);
     }
 }

 // callback from camera service when frame or image is ready
 void ProCamera::dataCallback(int32_t msgType, const sp<IMemory>& dataPtr,
                           camera_frame_metadata_t *metadata)
 {
     sp<ProCameraListener> listener;
     {
         Mutex::Autolock _l(mLock);
         listener = mListener;
     }
     if (listener != NULL) {
         listener->postData(msgType, dataPtr, metadata);
     }
 }

 // callback from camera service when timestamped frame is ready
 void ProCamera::dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType,
                                                     const sp<IMemory>& dataPtr)
 {
     sp<ProCameraListener> listener;
     {
         Mutex::Autolock _l(mLock);
         listener = mListener;
     }
     if (listener != NULL) {
         listener->postDataTimestamp(timestamp, msgType, dataPtr);
     } else {
         ALOGW("No listener was set. Drop a recording frame.");
     }
 }

 /* IProCameraUser's implementation */

 void ProCamera::onLockStatusChanged(
                                  IProCameraCallbacks::LockStatus newLockStatus)
 {
     ALOGV("%s: newLockStatus = %d", __FUNCTION__, newLockStatus);

     sp<ProCameraListener> listener;
     {
         Mutex::Autolock _l(mLock);
         listener = mListener;
     }
     if (listener != NULL) {
         switch (newLockStatus) {
             case IProCameraCallbacks::LOCK_ACQUIRED:
                 listener->onLockAcquired();
                 break;
             case IProCameraCallbacks::LOCK_RELEASED:
                 listener->onLockReleased();
                 break;
             case IProCameraCallbacks::LOCK_STOLEN:
                 listener->onLockStolen();
                 break;
             default:
                 ALOGE("%s: Unknown lock status: %d",
                       __FUNCTION__, newLockStatus);
         }
     }
 }

 status_t ProCamera::exclusiveTryLock()
 {
     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->exclusiveTryLock();
 }
 status_t ProCamera::exclusiveLock()
 {
     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->exclusiveLock();
 }
 status_t ProCamera::exclusiveUnlock()
 {
     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->exclusiveUnlock();
 }
 bool ProCamera::hasExclusiveLock()
 {
     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->hasExclusiveLock();
 }

 // Note that the callee gets a copy of the metadata.
 int ProCamera::submitRequest(const struct camera_metadata* metadata,
                              bool streaming)
 {
     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->submitRequest(const_cast<struct camera_metadata*>(metadata),
                             streaming);
 }

 status_t ProCamera::cancelRequest(int requestId)
 {
     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->cancelRequest(requestId);
 }

 status_t ProCamera::requestStream(int streamId)
 {
     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->requestStream(streamId);
 }
 status_t ProCamera::cancelStream(int streamId)
 {
     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->cancelStream(streamId);
 }

 status_t ProCamera::createStream(int width, int height, int format,
                           const sp<Surface>& surface,
                           /*out*/
                           int* streamId)
 {
     *streamId = -1;

     ALOGV("%s: createStreamW %dx%d (fmt=0x%x)", __FUNCTION__, width, height,
                                                                        format);

     if (surface == 0) {
         return BAD_VALUE;
     }

     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->createStream(width, height, format, surface, streamId);
 }

 status_t ProCamera::createStream(int width, int height, int format,
                           const sp<IGraphicBufferProducer>& bufferProducer,
                           /*out*/
                           int* streamId) {

     ALOGV("%s: createStreamT %dx%d (fmt=0x%x)", __FUNCTION__, width, height,
                                                                        format);

     sp<IBinder> binder;
     status_t stat = INVALID_OPERATION;

     if (bufferProducer != 0) {
         binder = bufferProducer->asBinder();

         ALOGV("%s: createStreamT END (%d), StreamID = %d", __FUNCTION__, stat,
                                                                     *streamId);
     }
     else {
         *streamId = -1;
         return BAD_VALUE;
     }

     return stat;
 }

 int ProCamera::getNumberOfCameras() {
     ALOGE("%s: not implemented yet", __FUNCTION__);
     return 1;
 }

 camera_metadata* ProCamera::getCameraInfo(int cameraId) {
     ALOGE("%s: not implemented yet", __FUNCTION__);

     ALOGV("%s: cameraId = %d", __FUNCTION__, cameraId);
     return NULL;
 }

 status_t ProCamera::createDefaultRequest(int templateId,
                                              camera_metadata** request) const {
     ALOGV("%s: templateId = %d", __FUNCTION__, templateId);

     sp <IProCameraUser> c = mCamera;
     if (c == 0) return NO_INIT;

     return c->createDefaultRequest(templateId, request);
 }

 }; // namespace android
	/*
	**
	** 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.
	*/

	//#define LOG_NDEBUG 0
	#define LOG_TAG "ProCamera"
	#include <utils/Log.h>
	#include <utils/threads.h>
	#include <utils/Mutex.h>

	#include <binder/IPCThreadState.h>
	#include <binder/IServiceManager.h>
	#include <binder/IMemory.h>

	#include <camera/ProCamera.h>
	#include <camera/ICameraService.h>
	#include <camera/IProCameraUser.h>
	#include <camera/IProCameraCallbacks.h>

	#include <gui/IGraphicBufferProducer.h>
	#include <gui/Surface.h>

	namespace android {

	// client singleton for camera service binder interface
	Mutex ProCamera::mLock;
	sp<ICameraService> ProCamera::mCameraService;
	sp<ProCamera::DeathNotifier> ProCamera::mDeathNotifier;

	// establish binder interface to camera service
	const sp<ICameraService>& ProCamera::getCameraService()
	{
	Mutex::Autolock _l(mLock);
	if (mCameraService.get() == 0) {
	sp<IServiceManager> sm = defaultServiceManager();
	sp<IBinder> binder;
	do {
	binder = sm->getService(String16("media.camera"));
	if (binder != 0)
	break;
	ALOGW("CameraService not published, waiting...");
	usleep(500000); // 0.5 s
	} while(true);
	if (mDeathNotifier == NULL) {
	mDeathNotifier = new DeathNotifier();
	}
	binder->linkToDeath(mDeathNotifier);
	mCameraService = interface_cast<ICameraService>(binder);
	}
	ALOGE_IF(mCameraService==0, "no CameraService!?");
	return mCameraService;
	}

	sp<ProCamera> ProCamera::connect(int cameraId)
	{
	ALOGV("connect");
	sp<ProCamera> c = new ProCamera();
	sp<IProCameraCallbacks> cl = c;
	const sp<ICameraService>& cs = getCameraService();
	if (cs != 0) {
	c->mCamera = cs->connect(cl, cameraId);
	}
	if (c->mCamera != 0) {
	c->mCamera->asBinder()->linkToDeath(c);
	c->mStatus = NO_ERROR;
	} else {
	c.clear();
	}
	return c;
	}

	void ProCamera::disconnect()
	{
	ALOGV("disconnect");
	if (mCamera != 0) {
	mCamera->disconnect();
	mCamera->asBinder()->unlinkToDeath(this);
	mCamera = 0;
	}
	}

	ProCamera::ProCamera()
	{
	}

	ProCamera::~ProCamera()
	{

	}

	sp<IProCameraUser> ProCamera::remote()
	{
	return mCamera;
	}

	void ProCamera::binderDied(const wp<IBinder>& who) {
	ALOGW("IProCameraUser died");
	notifyCallback(CAMERA_MSG_ERROR, CAMERA_ERROR_SERVER_DIED, 0);
	}

	void ProCamera::DeathNotifier::binderDied(const wp<IBinder>& who) {
	ALOGV("binderDied");
	Mutex::Autolock _l(ProCamera::mLock);
	ProCamera::mCameraService.clear();
	ALOGW("Camera service died!");
	}

	void ProCamera::setListener(const sp<ProCameraListener>& listener)
	{
	Mutex::Autolock _l(mLock);
	mListener = listener;
	}


	// callback from camera service
	void ProCamera::notifyCallback(int32_t msgType, int32_t ext1, int32_t ext2)
	{
	sp<ProCameraListener> listener;
	{
	Mutex::Autolock _l(mLock);
	listener = mListener;
	}
	if (listener != NULL) {
	listener->notify(msgType, ext1, ext2);
	}
	}

	// callback from camera service when frame or image is ready
	void ProCamera::dataCallback(int32_t msgType, const sp<IMemory>& dataPtr,
	camera_frame_metadata_t *metadata)
	{
	sp<ProCameraListener> listener;
	{
	Mutex::Autolock _l(mLock);
	listener = mListener;
	}
	if (listener != NULL) {
	listener->postData(msgType, dataPtr, metadata);
	}
	}

	// callback from camera service when timestamped frame is ready
	void ProCamera::dataCallbackTimestamp(nsecs_t timestamp, int32_t msgType,
	const sp<IMemory>& dataPtr)
	{
	sp<ProCameraListener> listener;
	{
	Mutex::Autolock _l(mLock);
	listener = mListener;
	}
	if (listener != NULL) {
	listener->postDataTimestamp(timestamp, msgType, dataPtr);
	} else {
	ALOGW("No listener was set. Drop a recording frame.");
	}
	}

	/* IProCameraUser's implementation */

	void ProCamera::onLockStatusChanged(
	IProCameraCallbacks::LockStatus newLockStatus)
	{
	ALOGV("%s: newLockStatus = %d", __FUNCTION__, newLockStatus);

	sp<ProCameraListener> listener;
	{
	Mutex::Autolock _l(mLock);
	listener = mListener;
	}
	if (listener != NULL) {
	switch (newLockStatus) {
	case IProCameraCallbacks::LOCK_ACQUIRED:
	listener->onLockAcquired();
	break;
	case IProCameraCallbacks::LOCK_RELEASED:
	listener->onLockReleased();
	break;
	case IProCameraCallbacks::LOCK_STOLEN:
	listener->onLockStolen();
	break;
	default:
	ALOGE("%s: Unknown lock status: %d",
	__FUNCTION__, newLockStatus);
	}
	}
	}

	status_t ProCamera::exclusiveTryLock()
	{
	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->exclusiveTryLock();
	}
	status_t ProCamera::exclusiveLock()
	{
	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->exclusiveLock();
	}
	status_t ProCamera::exclusiveUnlock()
	{
	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->exclusiveUnlock();
	}
	bool ProCamera::hasExclusiveLock()
	{
	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->hasExclusiveLock();
	}

	// Note that the callee gets a copy of the metadata.
	int ProCamera::submitRequest(const struct camera_metadata* metadata,
	bool streaming)
	{
	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->submitRequest(const_cast<struct camera_metadata*>(metadata),
	streaming);
	}

	status_t ProCamera::cancelRequest(int requestId)
	{
	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->cancelRequest(requestId);
	}

	status_t ProCamera::requestStream(int streamId)
	{
	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->requestStream(streamId);
	}
	status_t ProCamera::cancelStream(int streamId)
	{
	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->cancelStream(streamId);
	}

	status_t ProCamera::createStream(int width, int height, int format,
	const sp<Surface>& surface,
	/out/
	int* streamId)
	{
	*streamId = -1;

	ALOGV("%s: createStreamW %dx%d (fmt=0x%x)", __FUNCTION__, width, height,
	format);

	if (surface == 0) {
	return BAD_VALUE;
	}

	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->createStream(width, height, format, surface, streamId);
	}

	status_t ProCamera::createStream(int width, int height, int format,
	const sp<IGraphicBufferProducer>& bufferProducer,
	/out/
	int* streamId) {

	ALOGV("%s: createStreamT %dx%d (fmt=0x%x)", __FUNCTION__, width, height,
	format);

	sp<IBinder> binder;
	status_t stat = INVALID_OPERATION;

	if (bufferProducer != 0) {
	binder = bufferProducer->asBinder();

	ALOGV("%s: createStreamT END (%d), StreamID = %d", __FUNCTION__, stat,
	*streamId);
	}
	else {
	*streamId = -1;
	return BAD_VALUE;
	}

	return stat;
	}

	int ProCamera::getNumberOfCameras() {
	ALOGE("%s: not implemented yet", __FUNCTION__);
	return 1;
	}

	camera_metadata* ProCamera::getCameraInfo(int cameraId) {
	ALOGE("%s: not implemented yet", __FUNCTION__);

	ALOGV("%s: cameraId = %d", __FUNCTION__, cameraId);
	return NULL;
	}

	status_t ProCamera::createDefaultRequest(int templateId,
	camera_metadata** request) const {
	ALOGV("%s: templateId = %d", __FUNCTION__, templateId);

	sp <IProCameraUser> c = mCamera;
	if (c == 0) return NO_INIT;

	return c->createDefaultRequest(templateId, request);
	}

	}; // namespace android