[FFMPEG] Hybrid HEVC encoding (QuickSynch 1st pass)

[forartEU]

Hi everyone, for this nice FFMPEG-GUI called FastFlix we're discussing about hw encoding in this issue.

Since QSV doesn't (yet) support 2-pass mode, we thought it could be possible take advantage of the speed at least for the first pass.

If so, can someone help to correctly "transpose" these commands ?

1st pass:

ffmpeg -y -hwaccel auto -i "<sourcefile>" -max_muxing_queue_size 1024 -map "[v]" -c:v libx265 -pix_fmt yuv420p10le -x265-params "aq-mode=2:repeat-headers=1:strong-intra-smoothing=1:bframes=4:b-adapt=2:frame-threads=0:colorprim=bt2020:transfer=smpte2084:colormatrix=bt2020nc:hdr10_opt=1:master-display=G(13250,34500)B(7500,3000)R(34000,16000)WP(15635,16450)L(10000000,1):max-cll=0,0:hdr10=1:chromaloc=2:pass=1:no-slow-firstpass=1" -passlogfile "<logfile>" -b:v <bitrate> -preset:v medium -an -sn -dn -f mp4 NUL

Of course we can change libx265 into hevc_qsv and yuv420p10le into p010le, but how about -x265-params ?

2nd pass:

ffmpeg -y -hwaccel auto -i "<sourcefile>" -max_muxing_queue_size 1024 -map "[v]" -c:v libx265 -pix_fmt yuv420p10le -x265-params "aq-mode=2:repeat-headers=1:strong-intra-smoothing=1:bframes=4:b-adapt=2:frame-threads=0:colorprim=bt2020:transfer=smpte2084:colormatrix=bt2020nc:hdr10_opt=1:master-display=G(13250,34500)B(7500,3000)R(34000,16000)WP(15635,16450)L(10000000,1):max-cll=0,0:hdr10=1:chromaloc=2:pass=2" -passlogfile "<logfile>" -b:v <bitrate> -preset:v medium "<output>"

Last but not least, here is an interesting page about QSV available parameters in FFMPEG:

https://gist.github.com/nico-lab/58ac62e359bd63feed36af64db3e4406#file-hevc_qsv-txt

Thanks to anyone that can help.

[JaideepK_Intel]

Hi,

Thank you for posting in Intel Communities,

This forum handles issues related to Intel oneVPL and Intel MSDK. We will able to help you resolve issues if they are related to Intel oneVPL or Intel MSDK only.

Thanks,

Jaideep

[forartEU]

Thanks for your reply.

Well then, how to "transpose" above FFMPEG encoding commands into OneVPL calls ?

[JaideepK_Intel]

Hi,

We are working on this internally and we will get back to you soon with an update.

Thanks,

Jaideep

[Pamela_H_Intel]

Apologies for the delays. Media SDK functionality has been superseded by oneVPL, FFmpeg and GStreamer.

For more information see the oneVPL Landing Page: https://www.intel.com/content/www/us/en/developer/tools/oneapi/onevpl.html where you will find, among other information

oneVPL version 2.x is an API that is the successor to Intel® Media SDK. The Intel Media SDK project is no longer active and will not be updated. Packages and downloads are still available on GitHub*. For continued support and access to new features, Intel Media SDK users are encouraged to move to oneVPL as soon as possible.

• Upgrade from Intel Media SDK to oneVPL
• Intel Media SDK Discontinuation Notice
• Download from GitHub

Let us know if you have any questions about oneVPL.