mpp 海思HI_MPI_IVE_DMA抠图

by · 2020年02月21日 · 217 Words · ~1min reading time | Improve on


原文链接： mpp 海思HI_MPI_IVE_DMA抠图
s32Ret = HI_MPI_VPSS_GetChnFrame(s32VpssGrp, as32VpssChn[1], &stExtFrmInfo, s32MilliSec);

海思HI_MPI_IVE_DMA抠图
从原图坐标(x_start, y_start)为起点，抠大小为width_dst、height_dst的图：

int yuv400_crop(uint32_t width_src, uint32_t height_src, VIDEO_FRAME_INFO_S *stFrame, 
                uint32_t x_start, uint32_t y_start, uint32_t width_dst, uint32_t height_dst, IVE_IMAGE_S * dst_mmz) {
    
    if (width_dst == 0 || height_dst == 0 || 
        (x_start + width_dst) > width_src || (y_start + height_dst) > height_src) {
        return -1;
    }


    IVE_HANDLE hIveHandle;
    IVE_SRC_DATA_S stSrcData;
    IVE_DST_DATA_S stDstData;
    HI_S32 s32Ret;
    IVE_DMA_CTRL_S stCtrl = {IVE_DMA_MODE_DIRECT_COPY,0};
    HI_BOOL bInstant = HI_TRUE;
    HI_BOOL bBlock = HI_TRUE;
    HI_BOOL bFinish = HI_FALSE;


    //fill src
    //stSrcData.u64VirAddr = pstFrameInfo->stVFrame.u64VirAddr[0];
    stSrcData.u64PhyAddr = (stFrame->stVFrame.u64PhyAddr[0]) + (stFrame->stVFrame.u32Stride[0]) * y_start + x_start;
    stSrcData.u32Width   = BSF_BMP_WIDTH;
    stSrcData.u32Height  = BSF_BMP_HEIGHT;
    stSrcData.u32Stride  = stFrame->stVFrame.u32Stride[0];


    //fill dst
    //stDstData.u64VirAddr = pstDst->au64VirAddr[0];
    stDstData.u64PhyAddr = (dst_mmz->au64PhyAddr[0]);
    stDstData.u32Width   = BSF_BMP_WIDTH;
    stDstData.u32Height  = BSF_BMP_HEIGHT;
    stDstData.u32Stride  = BSF_BMP_WIDTH;

    s32Ret = HI_MPI_IVE_DMA(&hIveHandle,&stSrcData,&stDstData,&stCtrl,bInstant);
    if (HI_SUCCESS == s32Ret && HI_TRUE == bInstant) {
    }

    s32Ret = HI_MPI_IVE_Query(hIveHandle, &bFinish, bBlock);
    while (HI_ERR_IVE_QUERY_TIMEOUT == s32Ret)
    {
        usleep(100);
        s32Ret = HI_MPI_IVE_Query(hIveHandle, &bFinish, bBlock);
    }

    return 0;
}

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