Hi3531 vi属性应该怎样配置

# ./sample_venc  1
[SAMPLE_COMM_SYS_CalcPicVbBlkSize]-167: w:1920, u32AlignWidth:64
[SAMPLE_COMM_VI_Start]-836: ZJUT_DEBUG   0
[SAMPLE_COMM_VI_StartDev]-735: HI_MPI_VI_SetDevAttr failed with 0xffffffff!
[SAMPLE_COMM_VI_Start]-841: SAMPLE_COMM_VI_StartDev failed with 0xffffffff
[SAMPLE_VENC_4HD_H264]-408: start vi failed!
program exit abnormally!
# cat /proc/umap/vi

[VIU] Version: [Hi3531_MPP_V2.0.9.0 Debug], Build Time: [Jan 15 2013, 22:45:13]

-----MODULE PARAM--------------------------------------------------------------
detect_err_frame
               0

-----VI DEV ATTR---------------------------------------------------------------
Dev   IntfM  WkM  ComMsk0  ComMsk1 ScanM AD0 AD1 AD2 AD3   Seq

-----VI HIGH DEV ATTR---------------------------------------------------------------
Dev  InputM  WkM  ComMsk0  ComMsk1 ScanM AD0 AD1 AD2 AD3   Seq CombM CompM ClkM  Fix FldP

-----VI PHYCHN ATTR------------------------------------------------------------
PhyChn CapX CapY  CapW  CapH  DstW  DstH CapSel Mirror Flip IntEn PixFom SrcRat DstRat

-----VI PHYCHN STATUS 1----------------------------------------------------------
PhyChn  Dev  IntCnt  VbFail  LosInt  TopLos  BotLos BufCnt  IntT  SendT  Field  Stride

-----VI PHYCHN STATUS 2---------------------------------------------------------
PhyChn MaxIntT OverCnt LIntCnt  ThrCnt AutoDis  ccErrN    IntRat

-----VI PHYCHN VBI ATTR---------------------------------------------------------
PhyChn   VbiId       X       Y   Local     Len  CasErr

-----VI CASCADE CHN ATTR---------------------------------------------------------
CasChn    Dev  PhyChn  SrcRat  DstRat

-----VI CHN STATUS-------------------------------------------------------------
ViChn   bEnUsrP   FrmTime   FrmRate   SendCnt    SwLost

-----VI CHN CALL DSU STATUS-------------------------------------------------
ViChn UsrBgnNOk UsrCancel UsrEndOk UsrCbOk   CvrBgnNOk CvrCancel CvrEndOk CvrCbOk   OsdBgnNOk OsdCancel OsdEndOk OsdCbOk
输入设备的属性我也是按手册配置的，但一直出现这个问题。麻烦各位大神指点指点，小弟感激不尽！