sample_comm_vi.c结构体
VI_DEV_ATTR_S DEV_ATTR_BT656D1_1MUX

VI_DEV_ATTR_S DEV_ATTR_BT656D1_1MUX =
{
    /* interface mode */
    VI_MODE_BT656,
    /* multiplex mode */
    VI_WORK_MODE_1Multiplex,
    /* r_mask    g_mask    b_mask*/
    {0xFF0000,    0x0},//掩码根据自己实际写
    /* progessive or interleaving */
    VI_SCAN_INTERLACED,
    /*AdChnId*/
    { -1, -1, -1, -1},
    /*enDataSeq, only support yuv*/
    VI_INPUT_DATA_UYVY,
    /* synchronization information */
    {
        /*port_vsync   port_vsync_neg     port_hsync        port_hsync_neg        */
        VI_VSYNC_FIELD, VI_VSYNC_NEG_HIGH, VI_HSYNC_VALID_SINGNAL, VI_HSYNC_NEG_HIGH, VI_VSYNC_VALID_SINGAL, VI_VSYNC_VALID_NEG_HIGH,

        /*hsync_hfb    hsync_act    hsync_hhb*/
        {
            0,            0,        0,
            /*vsync0_vhb vsync0_act vsync0_hhb*/
            0,            0,        0,
            /*vsync1_vhb vsync1_act vsync1_hhb*/
            0,            0,            0
        }
    },
    /* ISP bypass */
    VI_PATH_BYPASS,
    /* input data type */
    VI_DATA_TYPE_YUV,
    /* bReverse */
    HI_FALSE,
    /* DEV CROP */
    {0, 0, 720, 576}
};

修改函数SAMPLE_COMM_VI_StartBT656添加

            case SAMPLE_VI_MODE_1_D1:
                stCapRect.u32Width  = 720;
                stCapRect.u32Height = 576;
                break;

在SAMPLE_COMM_VI_StartDev(ViDev, enViMode)函数中修改判断语句

    if (  (SAMPLE_VI_MODE_BT1120_1080P != enViMode)
        && (SAMPLE_VI_MODE_BT1120_1080I != enViMode)
	&& (SAMPLE_VI_MODE_1_D1 != enViMode)//添加
        && (SAMPLE_VI_MODE_BT1120_720P != enViMode))

修改SAMPLE_COMM_VI_StartMIPI_BT1120 (SAMPLE_VI_MODE_E enViMode)函数

    if ((enViMode == SAMPLE_VI_MODE_BT1120_1080I)
        || (enViMode == SAMPLE_VI_MODE_BT1120_720P)
        || (enViMode == SAMPLE_VI_MODE_BT1120_1080P))
    {
        pstcomboDevAttr = &MIPI_BT1120_ATTR;
    }
    else
    {
	pstcomboDevAttr = &MIPI_BT1120_ATTR; //添加
    }

在SAMPLE_COMM_VI_StartDev函数添加

            HI_MPI_VI_DisableDev(ViDev);
            s32Ret = HI_MPI_VI_SetWDRAttr(ViDev, &stWdrAttr);
            if (s32Ret)
            {
                SAMPLE_PRT("HI_MPI_VI_SetWDRAttr failed with %#x!\n", s32Ret);
                return HI_FAILURE;
            }

修改后，发现vi将采集的数据全部都丢掉，排查发现是由于配置vb（视频缓存池）不匹配

修改HI_S32 SAMPLE_COMM_SYS_GetPicSize函数

HI_S32 SAMPLE_COMM_SYS_GetPicSize(VIDEO_NORM_E enNorm, PIC_SIZE_E enPicSize, SIZE_S* pstSize)
{
    switch (enPicSize)
    {
        case PIC_QCIF:
            pstSize->u32Width  = 176;
            pstSize->u32Height = (VIDEO_ENCODING_MODE_PAL == enNorm) ? 144 : 120;
            break;
        case PIC_CIF:
            pstSize->u32Width  = 352;
            pstSize->u32Height = (VIDEO_ENCODING_MODE_PAL == enNorm) ? 288 : 240;
            break;
        case PIC_D1:
            pstSize->u32Width  = 720;
            pstSize->u32Height = 576;//(VIDEO_ENCODING_MODE_PAL == enNorm) ? 576 : 480;
            break;