MFXVPP Error - vpp-perc-pre-enc 10bit

[holmy88]

Just added "--vpp-perc-pre-enc" to my script and it works well on my A750 for my 8bit SDR videos but was failing with my HDR to SDR 10bit.

MFXVPP:   Failed to get required buffer size for MFXVPP: undeveloped feature.
MFXVPP:   Failed to get required buffer size for MFXVPP: undeveloped feature.
MFXVPP: Failed to initialize vpp: invalid video parameters..
avout: failed to write header for output file: Invalid data found when processing input


QSVEncC.exe finished with error!

Through trial and error, I worked out it wasn't libplacebo, 2160p or HDR it didn't like, it was 10bit encoding. The moment I change my encoder settings from HEVC 10bit to 8bit, it works. Is this undeveloped from Intel's side (drivers and/or hardware limitation)?

[rigaya]

VPP filter support seems to differ between 8bit and 10bit processing. Now QSVEnc 8.07 adds check for both 8bit and 10bit whether it is supported or not.

Unfortunately --vpp-perc-pre-enc seems to be not supported for 10bit processing at this time.