EmonLu

Test the given filter on Set5 , get average PSNR: 27.412189281809294 and SSIM: 0.8615755049777549

Using the filter trained on Set14, it gets a little better. I also tested it on Set5. Average PSNR: 28.4697113938006 Average SSIM: 0.885272462818642

The LR are downscaled from HR with BICUBIC(cv2.resize). Does it not make sense? And I used test_sample.py in the repo.

@jonrecker Thanks for your reply and I have modified the hello-sharing-x sample to implement OpenCL surface sharing on Linux referring to the code in [MediaSDK](https://github.com/Intel-Media-SDK/MediaSDK/blob/master/samples/sample_plugins/rotate_opencl/src/opencl_filter_va.cpp). I was trying to export...

Found that clCreateFromVA_APIMediaSurfaceINTEL() fails when encodeParams.mfx.FrameInfo.FourCC is MFX_FOURCC_BGR4, and successes for MFX_FOURCC_RGB4. The exported surface from VPL is valid. Sorry about the mistake before that VAStatus = 4 actually means...