• Improve handling of --open-gop to be more seekable. ( #87 )
• Now --vpp-overlay will be applied as last filter.
• Avoid error when WebVTT is inside MKV. ( #117 )
• Avoid error when setting --ctu 64 on iGPU not supported. ( #119 )
• Change utilization calculation for GPU and Video Engine(VE).
• Improved support for environment which cannot load OpenCL properly.
  Now QSVEncC will try to run without OpenCL when possible.