Now when 10bit hevc_qsv and hevc_vaapi accelerated encoding looks to be in box, I wonder if something prohibits us to get accelerated encoding for av1 and h264? According to ffmpeg help the following support should be available: av1_qsv Supported pixel formats: nv12 p010le qsv -profile <int> E..V....... (from 0 to INT_MAX) (default unknown) unknown 0 E..V....... main 1 E..V....... av1_vaapi Supported pixel formats: vaapi -profile <int> E..V....... Set profile (seq_profile) (from -99 to 255) (default -99) main 0 E..V....... high 1 E..V....... professional 2 E..V....... h264_qsv Supported pixel formats: nv12 qsv -profile <int> E..V....... (from 0 to INT_MAX) (default unknown) unknown 0 E..V....... baseline 66 E..V....... main 77 E..V....... high 100 E..V....... h264_vaapi Supported pixel formats: vaapi -profile <int> E..V....... Set profile (profile_idc and constraint_set*_flag) (from -99 to 65535) (default -99) constrained_baseline 578 E..V....... main 77 E..V....... high 100 E..V....... high10 110 E..V.......