I can't open the image you attached. Please attach it to the topic directly.
Are you using Windows? Could you please provide exact driver number?
The input stream setting was :
m_mfxEncParams.mfx.FrameInfo.FourCC = MFX_FOURCC_NV12;
m_mfxEncParams.mfx.FrameInfo.ChromaFormat = MFX_CHROMAFORMAT_YUV420;
The example used was sample_videoconf (available in 2014).
The problem is now solved, i used the encode example to upgrade my application.
Thank you for your help. you can consider this issue solved.