Can not capture RGB data on Sil1161

Hi,

  My board is DM8168 EVM. SDK is EZSDK_5_05_02_00.I had captured dvi data from Sil1161 by v4l2.Now i want to capture dvi data from Sil1161 by OMX.But i cannot capture dvi data from Sil1161.I had changed capture parameters by following:

OMX_ERRORTYPE IL_ClientSetCaptureParams (IL_Client *pAppData)
{

OMX_PARAM_VFCC_HWPORT_PROPERTIES sHwPortParam;

OMX_PARAM_VFCC_HWPORT_ID sHwPortId;

OMX_CONFIG_VFCC_FRAMESKIP_INFO sCapSkipFrames;

OMX_PARAM_CTRL_VIDDECODER_INFO sVidDecParam;

OMX_PARAM_BUFFER_MEMORYTYPE memTypeCfg;

OMX_PARAM_PORTDEFINITIONTYPE paramPort;

OMX_ERRORTYPE eError = OMX_ErrorNone;

OMX_INIT_PARAM (&paramPort);

/* set input height/width and color format */
paramPort.nPortIndex = OMX_VFCC_OUTPUT_PORT_START_INDEX;
OMX_GetParameter (pAppData->pCapHandle, OMX_IndexParamPortDefinition,
&paramPort);
paramPort.nPortIndex = OMX_VFCC_OUTPUT_PORT_START_INDEX;
paramPort.format.video.nFrameWidth = pAppData->nWidth;
paramPort.format.video.nFrameHeight = pAppData->nHeight;
paramPort.format.video.nStride = pAppData->nWidth;
paramPort.nBufferCountActual = IL_CLIENT_CAPTURE_OUTPUT_BUFFER_COUNT;
paramPort.format.video.eCompressionFormat = OMX_VIDEO_CodingUnused;
/* Capture output in 420 format */
paramPort.format.video.eColorFormat = OMX_COLOR_FormatYUV420SemiPlanar;

paramPort.nBufferSize =
(paramPort.format.video.nStride * pAppData->nHeight * 3) >> 1;
printf ("Buffer Size computed: %d\n", (int) paramPort.nBufferSize);
printf ("set input port params (width = %d, height = %d)",
(int) pAppData->nWidth, (int) pAppData->nHeight);
OMX_SetParameter (pAppData->pCapHandle, OMX_IndexParamPortDefinition,
&paramPort);

/* Setting Memory type at output port to Raw Memory */
OMX_INIT_PARAM (&memTypeCfg);
memTypeCfg.nPortIndex = OMX_VFCC_OUTPUT_PORT_START_INDEX;
memTypeCfg.eBufMemoryType = OMX_BUFFER_MEMORY_DEFAULT;
eError =
OMX_SetParameter (pAppData->pCapHandle, OMX_TI_IndexParamBuffMemType,
&memTypeCfg);

if (eError != OMX_ErrorNone)
ERROR ("failed to set memory Type at output port\n");

OMX_INIT_PARAM (&sHwPortId);
/* capture on EIO card is component input at VIP1 port */
sHwPortId.eHwPortId = OMX_VIDEO_CaptureHWPortVIP1_PORTA;
eError = OMX_SetParameter (pAppData->pCapHandle,
(OMX_INDEXTYPE) OMX_TI_IndexParamVFCCHwPortID,
(OMX_PTR) & sHwPortId);

OMX_INIT_PARAM (&sHwPortParam);

#ifdef RALPHMOD
sHwPortParam.eCaptMode = OMX_VIDEO_CaptureModeSC_DISCRETESYNC;
sHwPortParam.eVifMode = OMX_VIDEO_CaptureVifMode_24BIT;
sHwPortParam.eInColorFormat = OMX_COLOR_Format24bitRGB888;
#else
sHwPortParam.eCaptMode = OMX_VIDEO_CaptureModeSC_NON_MUX;
sHwPortParam.eVifMode = OMX_VIDEO_CaptureVifMode_16BIT;
sHwPortParam.eInColorFormat = OMX_COLOR_FormatYCbYCr;
#endif
sHwPortParam.eScanType = OMX_VIDEO_CaptureScanTypeProgressive;
sHwPortParam.nMaxHeight = pAppData->nHeight;
sHwPortParam.nMaxWidth = pAppData->nWidth;
sHwPortParam.nMaxChnlsPerHwPort = 1;

eError = OMX_SetParameter (pAppData->pCapHandle,
(OMX_INDEXTYPE)
OMX_TI_IndexParamVFCCHwPortProperties,
(OMX_PTR) & sHwPortParam);

if (pAppData->nFrameRate == 30)
{
OMX_INIT_PARAM (&sCapSkipFrames);
printf (" applying skip mask \n");

sCapSkipFrames.frameSkipMask = 0x2AAAAAAA;
eError = OMX_SetConfig (pAppData->pCapHandle,
(OMX_INDEXTYPE) OMX_TI_IndexConfigVFCCFrameSkip,
(OMX_PTR) & sCapSkipFrames);
}

/* Set parameters for TVP controller */

OMX_INIT_PARAM (&sHwPortId);
/* capture on EIO card is component input at VIP1 port */
sHwPortId.eHwPortId = OMX_VIDEO_CaptureHWPortVIP1_PORTA;
#ifndef RALPHMOD
eError = OMX_SetParameter (pAppData->pTvpHandle,
(OMX_INDEXTYPE) OMX_TI_IndexParamVFCCHwPortID,
(OMX_PTR) & sHwPortId);
#endif
OMX_INIT_PARAM (&sHwPortParam);
sHwPortParam.eCaptMode = OMX_VIDEO_CaptureModeSC_NON_MUX;
sHwPortParam.eVifMode = OMX_VIDEO_CaptureVifMode_16BIT;
sHwPortParam.eInColorFormat = OMX_COLOR_FormatYCbYCr;
sHwPortParam.eScanType = OMX_VIDEO_CaptureScanTypeProgressive;
sHwPortParam.nMaxHeight = pAppData->nHeight;
sHwPortParam.nMaxWidth = pAppData->nWidth;
sHwPortParam.nMaxChnlsPerHwPort = 1;

#ifndef RALPHMOD
eError = OMX_SetParameter (pAppData->pTvpHandle,
(OMX_INDEXTYPE)
OMX_TI_IndexParamVFCCHwPortProperties,
(OMX_PTR) & sHwPortParam);
#endif

OMX_INIT_PARAM (&sVidDecParam);

/* set the mode based on capture/display device */
if (strcmp ((char *) pAppData->mode, "1080p") == 0)
{
sVidDecParam.videoStandard = OMX_VIDEO_DECODER_STD_1080P_60;
printf("1080p60 selected.\n");
}
else if (strcmp ((char *) pAppData->mode, "720p") == 0)
{
sVidDecParam.videoStandard = OMX_VIDEO_DECODER_STD_720P_60;
printf("720p60 selected.\n");
}
else
{
ERROR ("Incorrect Display Mode configured!!\n");
}

#ifndef RALPHMOD
/* setting TVP7002 component input */
sVidDecParam.videoDecoderId = OMX_VID_DEC_TVP7002_DRV;
sVidDecParam.videoSystemId = OMX_VIDEO_DECODER_VIDEO_SYSTEM_AUTO_DETECT;
eError = OMX_SetParameter (pAppData->pTvpHandle,
(OMX_INDEXTYPE) OMX_TI_IndexParamCTRLVidDecInfo,
(OMX_PTR) & sVidDecParam);
if (eError != OMX_ErrorNone)
ERROR ("failed to set Ctrl Vid dec info \n");
#endif

return (eError);
}

note:

 how to set the eCaptMode parameter?i set it to be OMX_VIDEO_CaptureModeSC_DISCRETESYNC.Is it ok?