介紹fisheye開(kāi)發(fā)參考

03(2017012章，HIMPIFISHEYEGenVertex3章，新增RECTS，F(xiàn)ISHEYEREGIONATTRS、FISHEYEGPUPRIS改02(20160601(201512FishFish目前 1概 1 1 1 1 3 5API參 1數(shù)據(jù)類(lèi) 1注意事 1 表1-3普通校正模型參

魚(yú)眼校正模塊(FisheyeCorrection)GPU進(jìn)行魚(yú)眼鏡頭失真校正的00112PTZPan，相對(duì)中心點(diǎn)左右移動(dòng)，180180表PTZTile，相對(duì)中心點(diǎn)上下移動(dòng)，180180表u32HorZoom代表水平方向可視區(qū)域的大小，4095代表選中區(qū)域最u32VerZoom代表垂直方向可視區(qū)域的大小，4095代表選中區(qū)域最--u32HorZoomu32VerZoom移動(dòng)，大于180表示向右移動(dòng)；移動(dòng)，大于180表示向上移動(dòng)；u32HorZoom代表水平方向可視區(qū)域的大小，4095代表選中區(qū)域最大，<4095則選000010輸出圖的中線與X當(dāng)前版本，360度全景校正只關(guān)心--0X軸正半軸為中心，90表示輸出圖像以Y軸負(fù)半軸為中心，180表示輸出圖像以X軸負(fù)半軸為中心，270表示輸出圖像以Y一整圈，2048表示選定弧度180度；表1-3普通校正模型參數(shù)-以壁裝模式為例00222中心，小于180表示視角向左旋180上移動(dòng)。180表示以輸入圖中心為中心，小于180表示視角向下旋大小，4095代表選中區(qū)域最大，--移動(dòng)，大于180表示向右移動(dòng)；移動(dòng)，大于180表示向上移動(dòng)；APIHI_S320頭文件：hifisheyeapi.h、hicommHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_DeInit0頭文件：hifisheyeapi.h、hicommHIMPIFISHEYEDeInitHIMPIFISHEYEInitHIMPIFISHEYEHI_HANDLE頭文件：hifisheyeapi.h、hicommHIMPIFISHEYECreateHIMPIFISHEYEInitHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_Destroy(HI_HANDLE0頭文件：hifisheyeapi.h、hicommHIMPIFISHEYEDestroyHIMPIFISHEYEInitHIMPIFISHEYECreateHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_SetFisheyeConfig(HI_HANDLEhFishEyeLDC,constFISHEYE_CONFIG_S*pstFishEyeConfig);0頭文件：hifisheyeHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_GetFisheyeConfig(HI_HANDLEhFishEyeLDC,FISHEYE_CONFIG_S*pstFishEyeConfig);0頭文件：hifisheyeapi.h、hicommHIMPIFISHEYEHI_S32HI_MPI_FISHEYE_SetFisheyeAttr(HI_HANDLEhFishEyeLDC,constFISHEYE_ATTR_S*pstFishEyeAttr);0頭文件：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頭文件：hifisheyeapi.h、hicommHIMPIFISHEYEGetFisheyeAttrHIMPIFISHEYEInitHIMPIFISHEYE,…*sizeof(float)*2HI_S32HI_MPI_FISHEYE_GenVertex(HI_HANDLEhFishEyeLDC,*pstFishEyeAttr,HI_U32u32InputWidth,HI_U320頭文件：hifisheyeapi.h、hicommHIMPIFISHEYEGenVertexHIMPIFISHEYEInitstOutRect.u32Height*sizeof(float)*2。HI_S32HI_MPI_FISHEYE_Correction(HI_HANDLEhFishEyeLDC,*pstInput,VIDEO_FRAME_S0頭文件：hifisheyeapi.h、hicommHIMPIFISHEYECorrectionHIMPIFISHEYEInitFISHEYEMOUNTMODEEFISHEYEATTRS：定義FishEyeVIDEOFRAMES：定義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輸出圖像亮度（Y）與色度（UV）分量進(jìn)行插值處理，分別是Bilinear、Linear與方式。亮度與色度分量濾波方式的選擇分別保存在enYFilter與enCbCrFilter中。的坐標(biāo)點(diǎn)信息以浮點(diǎn)數(shù)的形式保存在u32CCMPhyAddr處?？蓞⒁?jiàn)API參考中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; /*矩形區(qū)域?qū)?/HI_U32 /*矩形區(qū)域高}++HIMPIFISHEYEHIMPIFISHEYEHIMPIFISHEYEtypedefstruct{ PIXEL_FORMAT_EenPixelFormat;VIDEO_FORMAT_EenVideoFormat; /*topoffsetofshowarea*/ s16OffsetBottom;/*bottomoffsetofshowarea*/ /*leftoffsetofshowarea*/ /*rightoffsetofshowarea*/ }擬地址，pVirAddr[1]為色度（U、V）分量虛擬地址。VIDEOFRAMES結(jié)構(gòu)體中其他成員與魚(yú)眼校正無(wú)關(guān)，故不在此文檔中作過(guò)多說(shuō)HIMPIFISHEYEFishEye模塊支持YUV420semi-planarFishEyekds.ko、malikbase.kohidbe.ko協(xié)助進(jìn)行內(nèi)存分配工作，libOpenCL、libmalilibfisheye三個(gè)庫(kù)文件，執(zhí)行FishEye程序需要將GenPfuncs.bin文件放置到程序同一目錄下。地址需要滿足4K對(duì)齊條件。輸出圖像的生成過(guò)程中，通過(guò)GenVertex方法生成坐標(biāo)后，GPU提供三種濾波方式對(duì)輸出圖像亮度（Y）與色度（UV）分量進(jìn)行插值處理，分別是Bilinear、LinearNearest。這三