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vaapipostproc: 4K 10bit solid black output

The vaapipostproc filter produces solid blank/black output with 4K 10bit input (see 1). If an explicit P010_10LE capsfilter is added to the vaapipostproc srcpad, then it works fine (see 2). This is only observed when using iHD driver... the i965 driver seems to work.

  1. VPP (default output format, NV12)
gst-launch-1.0 -vf videotestsrc num-buffers=100 \
  ! video/x-raw,format=P010_10LE,width=3840,height=2160 \
  ! vaapipostproc ! vaapisink fullscreen=1
  1. VPP + explicit P010_10LE output format
gst-launch-1.0 -vf videotestsrc num-buffers=100 \
  ! video/x-raw,format=P010_10LE,width=3840,height=2160 \
  ! vaapipostproc ! "video/x-raw(memory:VASurface)",format=P010_10LE \
  ! vaapisink fullscreen=1

Also, replacing videotestsrc (in 1 and 2) with VP9, AVC, or HEVC 10bit 4K decode steps produces the same result.

Edited by U. Artie Eoff