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How to dynamically support the input source switching in DM814x ?

Currently I use VCSDK_01.01.00.10, my demo use following link chains:

Capture -> SW Mosaic -> On Chip HDMI

when I congfigurate capture parameters as following:

for(vipInstId=0; vipInstId<capturePrm.numVipInst; vipInstId++)

{
pCaptureInstPrm = &capturePrm.vipInst[vipInstId];
pCaptureInstPrm->vipInstId = (vipInstId == 0? 2 : 0);
pCaptureInstPrm->videoDecoderId = (UInt32)NULL;
pCaptureInstPrm->inDataFormat = SYSTEM_DF_YUV422P;
pCaptureInstPrm->standard = SYSTEM_STD_AUTO_DETECT;
pCaptureInstPrm->numOutput = 1;
pCaptureOutPrm = &pCaptureInstPrm->outParams[0];

pCaptureOutPrm->dataFormat = SYSTEM_DF_YUV420SP_UV;
pCaptureOutPrm->scEnable = FALSE;
pCaptureOutPrm->scOutWidth = 0;
pCaptureOutPrm->scOutHeight = 0;
pCaptureOutPrm->outQueId = 0;
//pCaptureOutPrm->outChId = 0;
}

it can capture 1080P30/25 and other progressive video source correctly, but how to support capture both 1080I50 and 1080p30 video source correctly?Because I don't video source is I or P.

ths