run NVENC sample code failed in LINUX platform

gtx 650ti

the NVENC sample code run smooth in windows 7 64bits but failed in linux.

centos 6.4 Linux 64bits

driver: 337.19

nvenc_3.0_linux_sdk

nvenc_3.0_linux_sdk/Samples/nvEncodeApp/:./1080p_heavyhand_3sec.sh

GetNumberEncoders() has detected 1 CUDA capable GPU device(s) <<
[ GPU #0 - < GeForce GTX 650 Ti > has Compute SM 3.0, NVENC Available ]

InitCUDA() has detected 1 CUDA capable GPU device(s)<<
[ GPU #0 - < GeForce GTX 650 Ti > has Compute SM 3.0, Available NVENC ]

Select GPU #0 - < GeForce GTX 650 Ti > supports SM 3.0 and NVENC

nvEncoder Error: NVENC H.264 encoder initialization failure! Check input params!

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