介绍fisheye开发参考

03(2017012章，HIMPIFISHEYEGenVertex3章，新增RECTS，FISHEYEREGIONATTRS、FISHEYEGPUPRIS改02(20160601(201512FishFish目前 1概 1 1 1 1 3 5API参 1数据类 1注意事 1 表1-3普通校正模型参

鱼眼校正模块(FisheyeCorrection)GPU进行鱼眼镜头失真校正的00112PTZPan，相对中心点左右移动，180180表PTZTile，相对中心点上下移动，180180表u32HorZoom代表水平方向可视区域的大小，4095代表选中区域最u32VerZoom代表垂直方向可视区域的大小，4095代表选中区域最--u32HorZoomu32VerZoom移动，大于180表示向右移动；移动，大于180表示向上移动；u32HorZoom代表水平方向可视区域的大小，4095代表选中区域最大，<4095则选000010输出图的中线与X当前版本，360度全景校正只关心--0X轴正半轴为中心，90表示输出图像以Y轴负半轴为中心，180表示输出图像以X轴负半轴为中心，270表示输出图像以Y一整圈，2048表示选定弧度180度；表1-3普通校正模型参数-以壁装模式为例00222中心，小于180表示视角向左旋180上移动。180表示以输入图中心为中心，小于180表示视角向下旋大小，4095代表选中区域最大，--移动，大于180表示向右移动；移动，大于180表示向上移动；APIHI_S320头文件：hifisheyeapi.h、hicommHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_DeInit0头文件：hifisheyeapi.h、hicommHIMPIFISHEYEDeInitHIMPIFISHEYEInitHIMPIFISHEYEHI_HANDLE头文件：hifisheyeapi.h、hicommHIMPIFISHEYECreateHIMPIFISHEYEInitHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_Destroy(HI_HANDLE0头文件：hifisheyeapi.h、hicommHIMPIFISHEYEDestroyHIMPIFISHEYEInitHIMPIFISHEYECreateHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_SetFisheyeConfig(HI_HANDLEhFishEyeLDC,constFISHEYE_CONFIG_S*pstFishEyeConfig);0头文件：hifisheyeHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_GetFisheyeConfig(HI_HANDLEhFishEyeLDC,FISHEYE_CONFIG_S*pstFishEyeConfig);0头文件：hifisheyeapi.h、hicommHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_SetFisheyeAttr(HI_HANDLEhFishEyeLDC,constFISHEYE_ATTR_S*pstFishEyeAttr);0头文件：hifisheyeapi.h、hicommHIMPIFISHEYESetFisheyeAttrHIMPIFISHEYEInitHI_HANDLEhFishEyeLDC;FISHEYE_ATTR_SsTestAttr;VIDEO_FRAME_SsVidIn,sVidOut;/*InitFishEyemodule*//*Createhandle memset((void*)&sTestAttr,0,memset((void*)&sVidIn,0,memset((void*)&sVidOut,0,//prepareattr /*Usergeneratevertexbuffertostorecoordinateshere/*Setfisheyeattributes /*Generatethecorrectioncoordinate*/HI_MPI_FISHEYE_GenVertex(hTest,&sTestAttr,sVidIn.u32Width,/*begincorrection*/HI_MPI_FISHEYE_Correction(hFishEyeLDC,&sVidIn,&sVidOut);/*Destroyhandle*//*Userfreevertexbufferhere.../*Destroymodule*/HIMPIFISHEYEHI_S32HI_MPI_FISHEYE_GetFisheyeAttr(HI_HANDLEhFishEyeLDC,FISHEYE_ATTR_S*pstFishEyeAttr);0头文件：hifisheyeapi.h、hicommHIMPIFISHEYEGetFisheyeAttrHIMPIFISHEYEInitHIMPIFISHEYE,…*sizeof(float)*2HI_S32HI_MPI_FISHEYE_GenVertex(HI_HANDLEhFishEyeLDC,*pstFishEyeAttr,HI_U32u32InputWidth,HI_U320头文件：hifisheyeapi.h、hicommHIMPIFISHEYEGenVertexHIMPIFISHEYEInitstOutRect.u32Height*sizeof(float)*2。HI_S32HI_MPI_FISHEYE_Correction(HI_HANDLEhFishEyeLDC,*pstInput,VIDEO_FRAME_S0头文件：hifisheyeapi.h、hicommHIMPIFISHEYECorrectionHIMPIFISHEYEInitFISHEYEMOUNTMODEEFISHEYEATTRS：定义FishEyeVIDEOFRAMES：定义FishEye

typedef typedefstruct{ au16LMFCoef[128];/*LMFcoefficientoffisheyelen*/HIMPIFISHEYEHIMPIFISHEYEtypedefenum{ /*desktopmountmode*/ /*ceilingmountmode*/ /*wallmountmodeFISHEYEDESKTOPFISHEYECEILINGFISHEYEWALLFISHEYEMOUNTMODEHIMPIFISHEYEHIMPIFISHEYEtypedefenum{ /*360panoramamodeoffisheyecorrection*/ /*180panoramamodeoffisheyecorrection*/ /*normalmodeoffisheyecorrection*/ /*nofisheyecorrectionFISHEYEVIEW360FISHEYEVIEW180FISHEYEVIEWFISHEYENOFISHEYEVIEWMODEHIMPIFISHEYEHIMPIFISHEYEtypedefenum{ /*bilinearfilter*/ /*linearfilter*/ /*nearestfilter*/FISHEYEFILTERFISHEYEFILTERFISHEYEFILTERFISHEYEFILTERMODEHIMPIFISHEYEHIMPIFISHEYEtypedefstruct{ /*whetherenablefisheyecorrectionornot*/ /*whetherfisheyelen'sLMFcoefficientisfromuserconfigorfromdefaultlinearconfig*/ /*whetherusebackgroundcolorornot*/ /*thebackgroundcolorARGB8888[0,0xFFFFFF]*/ /*thehorizontaloffsetbetweenimagecenterandphysicalcenteroflen[-127,127]*/ /*theverticaloffsetbetweenimagecenterandphysicalcenteroflen[-127,127]*/ u32TrapezoidCoef;/*strengthcoefficientoftrapezoidcorrection*/ /*fisheyemountmode /*fisheyecorrectionregionnumber[1,FISHEYE_MAX_REGION_NUM]*/astFisheyeRegionAttr[FISHEYE_MAX_REGION_NUM];/*attributionoffisheyecorrectionregion*/HIMPIFISHEYEHIMPIFISHEYEtypedefstruct{ /*fisheyeviewmode*/ /*innerradiusoffisheyecorrectionregion[0,u32OutRadius) u32OutRadius;/*outradiusoffisheyecorrectionregion[1,max(width/2ofinputpicture,height/2ofinputpicture)]360]360]4095]4095] /*outputimageinfoafterfisheyecorrectionrangeofwidth[960,4608],rangeofheight[360,3456],rangofx[0,4608),rangeofy[0,3456) /*GPUrelatedattribute.forGPUuseHIMPIFISHEYEHIMPIFISHEYE输出图像亮度（Y）与色度（UV）分量进行插值处理，分别是Bilinear、Linear与方式。亮度与色度分量滤波方式的选择分别保存在enYFilter与enCbCrFilter中。的坐标点信息以浮点数的形式保存在u32CCMPhyAddr处。可参见API参考中HIMPIFISHEYEGenVertextypedefstruct{FISHEYE_FILTER_MODE_E /*FitermodeforLuma /*Fitermodeforchroma*/ u32CCMPhyAddr;/*Physicaladdressofcorrectioncoordinatememory,thesizeisregion'swidth*height*sizeof(float)*2.*/stOutRect.u32Width*stOutRect.u32Height*sizeof(float)*HIMPIFISHEYEHIMPIFISHEYEHIMPIFISHEYE

typedefstruct{HI_S32 /*HI_S32 HI_U32u32Width; /*矩形区域宽*/HI_U32 /*矩形区域高}++HIMPIFISHEYEHIMPIFISHEYEHIMPIFISHEYEtypedefstruct{ PIXEL_FORMAT_EenPixelFormat;VIDEO_FORMAT_EenVideoFormat; /*topoffsetofshowarea*/ s16OffsetBottom;/*bottomoffsetofshowarea*/ /*leftoffsetofshowarea*/ /*rightoffsetofshowarea*/ }拟地址，pVirAddr[1]为色度（U、V）分量虚拟地址。VIDEOFRAMES结构体中其他成员与鱼眼校正无关，故不在此文档中作过多说HIMPIFISHEYEFishEye模块支持YUV420semi-planarFishEyekds.ko、malikbase.kohidbe.ko协助进行内存分配工作，libOpenCL、libmalilibfisheye三个库文件，执行FishEye程序需要将GenPfuncs.bin文件放置到程序同一目录下。地址需要满足4K对齐条件。输出图像的生成过程中，通过GenVertex方法生成坐标后，GPU提供三种滤波方式对输出图像亮度（Y）与色度（UV）分量进行插值处理，分别是Bilinear、LinearNearest。这三