文档范例：
/********************************* *函数功能：创建组/通道 *输出参数： *返回值：成功为0 失败非0 *********************************/ HI_S32 create_VPSS_Group() { VPSS_GRP_ATTR_S stGrpVpssAttr; //group静态属性 VPSS_CHN_ATTR_S stChnAttr; VPSS_CROP_INFO_S stCropInfo; HI_S32 s32Ret = HI_SUCCESS; //返回值 VPSS_GRP VpssGrp; //组号 VPSS_CHN VpssChn; //通道号 VpssGrp = 0； VpssChn = 0； stGrpVpssAttr.u32MaxW = 1920; //最大图像宽高 stGrpVpssAttr.u32MaxH = 1080; stGrpVpssAttr.bIeEn = HI_FALSE; //下面这几个都是使能开关 stGrpVpssAttr.bDciEn = HI_FALSE; stGrpVpssAttr.bNrEn = HI_FALSE; stGrpVpssAttr.bHistEn = HI_FALSE; stGrpVpssAttr.enDieMode = VPSS_DIE_MODE_NODIE; stGrpVpssAttr.bEsEn = HI_FALSE; stGrpVpssAttr.enPixFmt = PIXEL_FORMAT_YUV_SEMIPLANAR_422; //像素格式 s32Ret = HI_MPI_VPSS_CreateGrp(VpssGrp, &stGrpVpssAttr); //创建组 if(s32Ret != HI_SUCCESS) { return s32Ret; } s32Ret = HI_MPI_VPSS_GetGrpAttr(VpssGrp, &stGrpVpssAttr); //获取组属性 if(s32Ret != HI_SUCCESS) { return s32Ret; } stGrpVpssAttr.bDciEn = HI_TRUE; stGrpVpssAttr.bNrEn = HI_TRUE; s32Ret = HI_MPI_VPSS_SetGrpAttr(VpssGrp, &stGrpVpssAttr); //设置组属性 if(s32Ret != HI_SUCCESS) { return s32Ret; } s32Ret = HI_MPI_VPSS_GetGrpCrop(VpssGrp, &stCropInfo)； //获取 VPSS CROP 功能属性 if(s32Ret != HI_SUCCESS) { return s32Ret; } stCropInfo.bEnable = 1; //crop使能开关 stCropInfo.enCropCoordinate = VPSS_CROP_ABS_COOR; //crop起始点坐标模式 stCropInfo.stCropRect.s32X = 100; //crop矩形区域 顶点坐标和宽高 stCropInfo.stCropRect.s32Y = 200; stCropInfo.stCropRect.u32Width = 1280; stCropInfo.stCropRect.u32Height = 720; s32Ret = HI_MPI_VPSS_SetGrpCrop(VpssGrp, &stCropInfo)； //设置组crop属性 if(s32Ret != HI_SUCCESS) { return s32Ret; } s32Ret = HI_MPI_VPSS_GetChnAttr(VpssGrp, VpssChn,&stChnAttr); //获取通道属性 if(s32Ret != HI_SUCCESS) { return s32Ret; } stChnAttr.bUVInvert = 0; stChnAttr.bSpEn = 1; s32Ret = HI_MPI_VPSS_SetChnAttr(VpssGrp, VpssChn,&stChnAttr); //设置VPSS通道属性 if(s32Ret != HI_SUCCESS) { return s32Ret; } s32Ret = HI_MPI_VPSS_EnableChn(VpssGrp, VpssChn); //使能通道 if(s32Ret != HI_SUCCESS) { return s32Ret; } s32Ret = HI_MPI_VPSS_StartGrp (VpssGrp); //启用组 if(s32Ret != HI_SUCCESS) { return s32Ret; } /*****************************/ /* call sys bind interface */ /*****************************/ s32Ret = HI_MPI_VPSS_StopGrp (VpssGrp); //禁用组 if(s32Ret != HI_SUCCESS) { return s32Ret; } s32Ret = HI_MPI_VPSS_DisableChn(VpssGrp, VpssChn); //关闭通道 if(s32Ret != HI_SUCCESS) { return s32Ret; } /*****************************/ /* call sys unbind interface */ /*****************************/ s32Ret = HI_MPI_VPSS_DestroyGrp(VpssGrp); //销毁组 先禁用才能销毁 if(s32Ret != HI_SUCCESS) { return s32Ret; } }
实例：
HI_S32 vpss_create_vpss(HI_S32 s32GrpCnt, HI_S32 s32ChnCnt) { VPSS_GRP VpssGrp; VPSS_CHN VpssChn; VPSS_GRP_ATTR_S stGrpAttr; VPSS_CHN_ATTR_S stChnAttr; VPSS_GRP_PARAM_S stVpssParam; VPSS_CHN_MODE_S stVpssChnMode; HI_S32 s32Ret; HI_S32 i, j; SIZE_S stPicSize; VPSS_PRESCALE_INFO_S stPreScaleInfo; memset(&stGrpAttr,0,sizeof(VPSS_GRP_ATTR_S)); stGrpAttr.bIeEn = HI_FALSE; stGrpAttr.bNrEn = HI_FALSE; stGrpAttr.bDciEn = HI_FALSE; stGrpAttr.bHistEn = HI_FALSE; stGrpAttr.bEsEn = HI_FALSE; stGrpAttr.enDieMode = VPSS_DIE_MODE_NODIE; stGrpAttr.enPixFmt = PIXEL_FORMAT_YUV_SEMIPLANAR_420; //stGrpAttr.enPixFmt = PIXEL_FORMAT_YUV_SEMIPLANAR_422; for(i = 0; i < s32GrpCnt; i++) { VpssGrp = i; if(VpssGrp<vi_chn_num) { stGrpAttr.bNrEn = HI_TRUE; //stGrpAttr.bNrEn = HI_FALSE; if(Simulate_IP_mixture_mode) { /* if((VpssGrp>=vi_chn_num*2)) { stGrpAttr.bNrEn = HI_FALSE; } else*/ { //stGrpAttr.bNrEn = HI_FALSE; } stGrpAttr.u32MaxW = 1920;//2048; stGrpAttr.u32MaxH = 1080;//1536; } else { /*if((VpssGrp>=vi_chn_num*2)) { stGrpAttr.bNrEn = HI_FALSE; } else*/ { //stGrpAttr.bNrEn = HI_TRUE; //stGrpAttr.bNrEn = HI_FALSE; } stGrpAttr.u32MaxW = 1920; stGrpAttr.u32MaxH = 1080; //1944; } } else { if(i == 13) { stGrpAttr.bNrEn = HI_TRUE; } else { stGrpAttr.bNrEn = HI_FALSE; } if(Simulate_IP_mixture_mode) { stGrpAttr.u32MaxW = 1920; stGrpAttr.u32MaxH = 1080; } else { stGrpAttr.u32MaxW = 1920; stGrpAttr.u32MaxH = 1080; } } //stGrpAttr.u32MaxW = 2560; //stGrpAttr.u32MaxH = 1944; s32Ret = HI_MPI_VPSS_CreateGrp(VpssGrp, &stGrpAttr); //创建一个 VPSS GROUP。 if (s32Ret != HI_SUCCESS) { SDKPRINTF("HI_MPI_VPSS_CreateGrp %d failed with %#x! ",i,s32Ret); return HI_FAILURE; } s32Ret = HI_MPI_VPSS_GetGrpParam(VpssGrp, &stVpssParam); //获取 VPSS GROUP 参数 if (s32Ret != HI_SUCCESS) { SDKPRINTF("failed with %#x! ", s32Ret); return HI_FAILURE; } #if 0 stVpssParam.u32Contrast = 13; // 13 stVpssParam.u32SfStrength = 24;//36; //亮度空域去噪 26 stVpssParam.u32TfStrength = 18;//13; //18;//亮度时域去噪 6 stVpssParam.u32CfStrength = 12; //色度空域去噪 12 stVpssParam.u32CTfStrength= 10;//6; //色度时域去噪 6 stVpssParam.u32IeStrength = 4;//3; // 7 stVpssParam.u32CvbsStrength=24; #else // yqf modify 2017.7.24 stVpssParam.u32Contrast = 13; // 13 stVpssParam.u32SfStrength = 26; //亮度空域去噪 26 stVpssParam.u32TfStrength = 18;//亮度时域去噪 6 stVpssParam.u32CfStrength = 12; //色度空域去噪 12 stVpssParam.u32CTfStrength= 6; //色度时域去噪 6 stVpssParam.u32IeStrength = 7; // 7 #endif /* stVpssParam.u32CfStrength = 12; //5 stVpssParam.u32SfStrength = 26; //20 stVpssParam.u32TfStrength = 18; //5 stVpssParam.u32CTfStrength =6; //5 stVpssParam.u32Contrast =13; //8 */ s32Ret = HI_MPI_VPSS_SetGrpParam(VpssGrp, &stVpssParam); //设置 VPSS GRUOP 参数。 if (s32Ret != HI_SUCCESS) { SDKPRINTF("failed with %#x! ", s32Ret); return HI_FAILURE; } //modify by yqf 2018.4.3 if(vi_chn_num > VpssGrp) { s32Ret = HI_MPI_VPSS_DisableBackupFrame(VpssGrp); if (s32Ret != HI_SUCCESS) { SDKPRINTF("HI_MPI_VPSS_DisableBackupFrame %d failed with %#x! ",i,s32Ret); return HI_FAILURE; } } for(j = 0; j < s32ChnCnt; j++) { if(vi_chn_num != 8) { if(i >=vi_chn_num ) { if(i <=g_vi_chn_num ) { if(j>1) { continue; } } else { if(j>0) { continue; } } } } else { if(i >=vi_chn_num ) { if(j>0) { continue; } } } VpssChn = j; stChnAttr.bSpEn = HI_FALSE; stChnAttr.bUVInvert = HI_FALSE; stChnAttr.bBorderEn = HI_TRUE; stChnAttr.stBorder.u32BottomWidth=2; stChnAttr.stBorder.u32Color=0x0000; stChnAttr.stBorder.u32LeftWidth=2; stChnAttr.stBorder.u32RightWidth=2; stChnAttr.stBorder.u32TopWidth=2; //stChnAttr.bSpEn = HI_FALSE; //stChnAttr.bFrameEn = HI_FALSE; //stChnAttr.stFrame.u32Color[VPSS_FRAME_WORK_LEFT] = 0xff00; //stChnAttr.stFrame.u32Color[VPSS_FRAME_WORK_RIGHT] = 0xff00; //stChnAttr.stFrame.u32Color[VPSS_FRAME_WORK_BOTTOM] = 0xff00; //stChnAttr.stFrame.u32Color[VPSS_FRAME_WORK_TOP] = 0xff00; //stChnAttr.stFrame.u32Width[VPSS_FRAME_WORK_LEFT] = 2; //stChnAttr.stFrame.u32Width[VPSS_FRAME_WORK_RIGHT] = 2; //stChnAttr.stFrame.u32Width[VPSS_FRAME_WORK_TOP] = 2; //stChnAttr.stFrame.u32Width[VPSS_FRAME_WORK_BOTTOM] = 2; s32Ret = HI_MPI_VPSS_SetChnAttr(VpssGrp, VpssChn, &stChnAttr); //设置 VPSS 通道属性。 if (s32Ret != HI_SUCCESS) { SDKPRINTF("HI_MPI_VPSS_SetChnAttr failed with %#x grp is %d ,chn is %d ", s32Ret,VpssGrp,VpssChn); return HI_FAILURE; } #if 1 //if (3 != VpssChn) { VPSS_CHN_MODE_S stVpssMode; s32Ret = HI_MPI_VPSS_GetChnMode(VpssGrp,VpssChn,&stVpssMode); //获取 VPSS 通道工作模式 if(s32Ret != HI_SUCCESS) { printf("HI_MPI_VPSS_GetChnMode:0x%x ", s32Ret); return s32Ret; } //modify by yqf 2018.3.7 stVpssMode.enPixelFormat = PIXEL_FORMAT_YUV_SEMIPLANAR_420; stVpssMode.enCompressMode =COMPRESS_MODE_NONE; /* if((VpssGrp>=g_vi_chn_num)&&(VpssGrp<g_vi_chn_num *2)) { if(VpssChn == 0) { stVpssMode.enCompressMode =COMPRESS_MODE_NONE; stVpssMode.u32Width = 1920; stVpssMode.u32Height = 1080; stVpssMode.enChnMode = VPSS_CHN_MODE_USER; } } */ s32Ret = HI_MPI_VPSS_SetChnMode(VpssGrp,VpssChn,&stVpssMode); //设置 VPSS 通道工作模式 if(s32Ret != HI_SUCCESS) { printf("HI_MPI_VPSS_SetChnMode:0x%x ", s32Ret); return s32Ret; } } #endif s32Ret = HI_MPI_VPSS_EnableChn(VpssGrp, VpssChn); //启用 VPSS 通道 if (s32Ret != HI_SUCCESS) { SDKPRINTF("HI_MPI_VPSS_EnableChn failed with %#x ", s32Ret); return HI_FAILURE; } } s32Ret = HI_MPI_VPSS_StartGrp(VpssGrp); //启用 VPSS GROUP。 if (s32Ret != HI_SUCCESS) { SDKPRINTF("HI_MPI_VPSS_StartGrp failed with %#x ", s32Ret); return HI_FAILURE; } } return HI_SUCCESS; }