/* * Copyright (C) Texas Instruments - http://www.ti.com/ * * 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 V4L_CAMERA_ADAPTER_H #define V4L_CAMERA_ADAPTER_H #include #include "CameraHal.h" #include "BaseCameraAdapter.h" #include "DebugUtils.h" namespace Ti { namespace Camera { #define DEFAULT_PIXEL_FORMAT V4L2_PIX_FMT_YUYV #define NB_BUFFER 10 #define DEVICE "/dev/videoxx" #define DEVICE_PATH "/dev/" #define DEVICE_NAME "videoxx" typedef int V4L_HANDLETYPE; struct CapPixelformat { uint32_t pixelformat; const char *param; }; struct CapResolution { size_t width, height; char param[10]; }; struct CapU32 { uint32_t num; const char *param; }; typedef CapU32 CapFramerate; struct VideoInfo { struct v4l2_capability cap; struct v4l2_format format; struct v4l2_buffer buf; struct v4l2_requestbuffers rb; void *mem[NB_BUFFER]; void *CaptureBuffers[NB_BUFFER]; bool isStreaming; int width; int height; int formatIn; int framesizeIn; }; typedef struct V4L_TI_CAPTYPE { uint16_t ulPreviewFormatCount; // supported preview pixelformat count uint32_t ePreviewFormats[32]; uint16_t ulPreviewResCount; // supported preview resolution sizes CapResolution tPreviewRes[32]; uint16_t ulCaptureResCount; // supported capture resolution sizes CapResolution tCaptureRes[32]; uint16_t ulFrameRateCount; // supported frame rate uint16_t ulFrameRates[32]; }V4L_TI_CAPTYPE; /** * Class which completely abstracts the camera hardware interaction from camera hal * TODO: Need to list down here, all the message types that will be supported by this class Need to implement BufferProvider interface to use AllocateBuffer of OMX if needed */ class V4LCameraAdapter : public BaseCameraAdapter { public: /*--------------------Constant declarations----------------------------------------*/ static const int32_t MAX_NO_BUFFERS = 20; ///@remarks OMX Camera has six ports - buffer input, time input, preview, image, video, and meta data static const int MAX_NO_PORTS = 6; ///Five second timeout static const int CAMERA_ADAPTER_TIMEOUT = 5000*1000; public: V4LCameraAdapter(size_t sensor_index); ~V4LCameraAdapter(); ///Initialzes the camera adapter creates any resources required virtual status_t initialize(CameraProperties::Properties*); //APIs to configure Camera adapter and get the current parameter set virtual status_t setParameters(const android::CameraParameters& params); virtual void getParameters(android::CameraParameters& params); // API virtual status_t UseBuffersPreview(CameraBuffer *bufArr, int num); virtual status_t UseBuffersCapture(CameraBuffer *bufArr, int num); static status_t getCaps(const int sensorId, CameraProperties::Properties* params, V4L_HANDLETYPE handle); protected: //----------Parent class method implementation------------------------------------ virtual status_t startPreview(); virtual status_t stopPreview(); virtual status_t takePicture(); virtual status_t stopImageCapture(); virtual status_t autoFocus(); virtual status_t useBuffers(CameraMode mode, CameraBuffer *bufArr, int num, size_t length, unsigned int queueable); virtual status_t fillThisBuffer(CameraBuffer *frameBuf, CameraFrame::FrameType frameType); virtual status_t getFrameSize(size_t &width, size_t &height); virtual status_t getPictureBufferSize(CameraFrame &frame, size_t bufferCount); virtual status_t getFrameDataSize(size_t &dataFrameSize, size_t bufferCount); virtual void onOrientationEvent(uint32_t orientation, uint32_t tilt); //----------------------------------------------------------------------------- private: class PreviewThread : public android::Thread { V4LCameraAdapter* mAdapter; public: PreviewThread(V4LCameraAdapter* hw) : Thread(false), mAdapter(hw) { } virtual void onFirstRef() { run("CameraPreviewThread", android::PRIORITY_URGENT_DISPLAY); } virtual bool threadLoop() { mAdapter->previewThread(); // loop until we need to quit return true; } }; //Used for calculation of the average frame rate during preview status_t recalculateFPS(); char * GetFrame(int &index); int previewThread(); public: private: //capabilities data static const CapPixelformat mPixelformats []; static const CapResolution mPreviewRes []; static const CapFramerate mFramerates []; static const CapResolution mImageCapRes []; //camera defaults static const char DEFAULT_PREVIEW_FORMAT[]; static const char DEFAULT_PREVIEW_SIZE[]; static const char DEFAULT_FRAMERATE[]; static const char DEFAULT_NUM_PREV_BUFS[]; static const char DEFAULT_PICTURE_FORMAT[]; static const char DEFAULT_PICTURE_SIZE[]; static const char DEFAULT_FOCUS_MODE[]; static const char * DEFAULT_VSTAB; static const char * DEFAULT_VNF; static status_t insertDefaults(CameraProperties::Properties*, V4L_TI_CAPTYPE&); static status_t insertCapabilities(CameraProperties::Properties*, V4L_TI_CAPTYPE&); static status_t insertPreviewFormats(CameraProperties::Properties* , V4L_TI_CAPTYPE&); static status_t insertPreviewSizes(CameraProperties::Properties* , V4L_TI_CAPTYPE&); static status_t insertImageSizes(CameraProperties::Properties* , V4L_TI_CAPTYPE&); static status_t insertFrameRates(CameraProperties::Properties* , V4L_TI_CAPTYPE&); static status_t sortAscend(V4L_TI_CAPTYPE&, uint16_t ) ; status_t v4lIoctl(int, int, void*); status_t v4lInitMmap(int&); status_t v4lInitUsrPtr(int&); status_t v4lStartStreaming(); status_t v4lStopStreaming(int nBufferCount); status_t v4lSetFormat(int, int, uint32_t); status_t restartPreview(); int mPreviewBufferCount; int mPreviewBufferCountQueueable; int mCaptureBufferCount; int mCaptureBufferCountQueueable; android::KeyedVector mPreviewBufs; android::KeyedVector mCaptureBufs; mutable android::Mutex mPreviewBufsLock; mutable android::Mutex mCaptureBufsLock; mutable android::Mutex mStopPreviewLock; android::CameraParameters mParams; bool mPreviewing; bool mCapturing; android::Mutex mLock; int mFrameCount; int mLastFrameCount; unsigned int mIter; nsecs_t mLastFPSTime; //variables holding the estimated framerate float mFPS, mLastFPS; int mSensorIndex; // protected by mLock android::sp mPreviewThread; struct VideoInfo *mVideoInfo; int mCameraHandle; int nQueued; int nDequeued; }; } // namespace Camera } // namespace Ti #endif //V4L_CAMERA_ADAPTER_H