* commit '4d330da006fe48178a4c8047f06270925eaedf63': os_support: Use HAVE_UWP instead of manually checking WINAPI_FAMILY d3d11va: Check WINAPI_FAMILY instead of HAVE_LOADLIBRARY lavf: Remove codec_tag from dashenc and smoothstreamingenc hevc: Add support for alternative transfer characterics SEI Merged-by: James Almer <jamrial@gmail.com>tags/n4.0