DM8127+tvp5150采集PAL信号不正确

应用程序以/opt/ipnc/Source/ipnc_rdk/ipnc_mcfw/mcfw/src_linux/mcfw_api/usecases/multich_encode_decode.c为基础进行例程的修改，captureLink参数设置如下：

    CaptureLink_CreateParams        capturePrm;

    capturePrm.numVipInst = 1;
    capturePrm.outQueParams[0].nextLink = gIpcFramesOutVpssToHostId;
    capturePrm.tilerEnable = FALSE;
    capturePrm.enableSdCrop = FALSE;
    capturePrm.numBufsPerCh = 6;
    capturePrm.numExtraBufs = 0;
    capturePrm.fakeHdMode = FALSE;
    capturePrm.doCropInCapture = FALSE;
    capturePrm.isPalMode = Vcap_isPalMode();

    for(i=0; i<capturePrm.numVipInst; i++)
    {
    pCaptureInstPrm = &capturePrm.vipInst[i];////
    pCaptureInstPrm->vipInstId = SYSTEM_CAPTURE_INST_VIP0_PORTA;

    pCaptureInstPrm->videoDecoderId = SYSTEM_DEVICE_VID_DEC_TVP5150_DRV;

    //added by qiu
    capturePrm.numVipInst = 1;
    //capturePrm.outQueParams[0].nextLink = gIpcOutVpssId;
    capturePrm.outQueParams[0].nextLink = gIpcFramesOutVpssToHostId;
    capturePrm.tilerEnable = FALSE;
    capturePrm.enableSdCrop = FALSE;
    capturePrm.numBufsPerCh = 6;
    capturePrm.numExtraBufs = 0;
    capturePrm.fakeHdMode = FALSE;
    capturePrm.doCropInCapture = FALSE;
    capturePrm.isPalMode = Vcap_isPalMode();


        pCaptureInstPrm->inDataFormat = SYSTEM_DF_YUV422P;
        pCaptureInstPrm->standard           = SYSTEM_STD_D1;
        pCaptureInstPrm->numOutput = 1;

        pCaptureOutPrm = &pCaptureInstPrm->outParams[i];
        pCaptureOutPrm->dataFormat = SYSTEM_DF_YUV422I_YUYV;
        pCaptureOutPrm->scEnable = FALSE;
        pCaptureOutPrm->scOutWidth = 0;
        pCaptureOutPrm->scOutHeight = 0;
        pCaptureOutPrm->outQueId = 0;
    }

/opt/ipnc/Source/ipnc_rdk/ipnc_mcfw/mcfw/src_bios6/links_m3vpss/capture/captureLink_drv.c中的设置为

        pVipCreateArgs->videoCaptureMode =  VPS_CAPT_VIDEO_CAPTURE_MODE_SINGLE_CH_NON_MUX_EMBEDDED_SYNC;

        pVipCreateArgs->videoIfMode = VPS_CAPT_VIDEO_IF_MODE_8BIT;