[Cin] FFmpeg supported QSV pixel formats and profiles

[Terje J. Hanssen]

Den 26.10.2024 17:10, skrev Andrew Randrianasulu:
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> сб, 26 окт. 2024 г., 17:39 Terje J. Hanssen <terjejhanssen at gmail.com>:
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>     Den 26.10.2024 02:12, skrev Andrew Randrianasulu:
>>
>>
>>     сб, 26 окт. 2024 г., 03:06 Terje J. Hanssen via Cin
>>     <cin at lists.cinelerra-gg.org>:
>>
>>           An overview over the system FFmpeg 7.1 supported QSV pixel
>>         formats and profiles:
>>
>>
>>         ffmpeg -hide_banner -encoders | grep qsv
>>          V..... av1_qsv              AV1 (Intel Quick Sync Video
>>         acceleration) (codec av1)
>>          V..... h264_qsv             H.264 / AVC / MPEG-4 AVC /
>>         MPEG-4 part 10 (Intel Quick Sync Video acceleration) (codec h264)
>>          V..... hevc_qsv             HEVC (Intel Quick Sync Video
>>         acceleration) (codec hevc)
>>          V..... mjpeg_qsv            MJPEG (Intel Quick Sync Video
>>         acceleration) (codec mjpeg)
>>          V..... mpeg2_qsv            MPEG-2 video (Intel Quick Sync
>>         Video acceleration) (codec mpeg2video)
>>          V..... vp9_qsv              VP9 video (Intel Quick Sync
>>         Video acceleration) (codec vp9)
>>
>>
>>         ffmpeg -hide_banner -h encoder=av1_qsv | egrep
>>         'Supported|profile|main|high|professional'
>>             Supported hardware devices: qsv qsv qsv
>>             Supported pixel formats: nv12 p010le qsv
>>           -profile           <int> E..V....... (from 0 to INT_MAX)
>>         (default unknown)
>>              main            1 E..V.......
>>
>>
>>         ffmpeg -hide_banner -h encoder=hevc_qsv | egrep
>>         'Supported|profile|main|high|professional'
>>             Supported hardware devices: qsv qsv qsv
>>             Supported pixel formats: nv12 p010le p012le yuyv422
>>         y210le qsv bgra x2rgb10le vuyx xv30le
>>           -profile           <int> E..V....... (from 0 to INT_MAX)
>>         (default unknown)
>>              main            1 E..V.......
>>              main10          2 E..V.......
>>              mainsp          3 E..V.......
>>           -tier              <int> E..V....... Set the encoding tier
>>         (only level >= 4 can support high tier) (from 0 to 256)
>>         (default high)
>>              main            0 E..V.......
>>              high            256 E..V.......
>>
>>
>>         ffmpeg -hide_banner -h encoder=h264_qsv | egrep
>>         'Supported|profile|main|high|professional'
>>             Supported hardware devices: qsv qsv qsv
>>             Supported pixel formats: nv12 qsv
>>           -profile           <int> E..V....... (from 0 to INT_MAX)
>>         (default unknown)
>>              main            77 E..V.......
>>              high            100 E..V.......
>>
>>
>>
>>     from this we can conclude av1/hevc should have 10bit option  ...
>>
>>     probably writing down numerical values for profiles (high,
>>     main...) for each codec is also good idea.
>>
>
>     A reference and overview table for QSV capabilties for each iGPU
>     and dGPU generation is here
>     https://en.wikipedia.org/wiki/Intel_Quick_Sync_Video#Hardware_decoding_and_encoding
>
>     And finally, after much trying and failing, I was able to prove
>     that true 10bit 422 color depth hevc_qsv encoding is possible with
>     my system ffmpeg 7.1
>     .
>     While pixel format p010le results in "just" 10bit yuv420p, the
>     clue is to to use either (trying this for av1_qsv, auto- switch to
>     8bit nv12):
>
>         -pix_fmt y210le
>         or
>         -v format=yuv422p010le
>
>     Code example:
>
>     ffmpeg -hide_banner -hwaccel_output_format qsv -i cfhd01.mkv -c:v
>     hevc_qsv -pix_fmt y210le cfhd01_hevc_qsv_pxfmt_y210le.mp4
>
>     Input file:
>
>     ffprobe -hide_banner cfhd01.mkv
>     Input #0, matroska,webm, from 'cfhd01.mkv':
>       Metadata:
>         ENCODER         : Lavf61.1.100
>       Duration: 00:01:11.24, start: 0.000000, bitrate: 393480 kb/s
>       Stream #0:0(eng): Video: cfhd (CFHD / 0x44484643),
>     yuv422p10le(tv, bt709, top coded first (swapped)), 1920x1080, SAR
>     1:1 DAR 16:9, 25 fps, 25 tbr, 1k tbn (default)
>           Metadata:
>             HANDLER_NAME    : Apple Video Media Handler
>             VENDOR_ID       : appl
>             ENCODER         : Lavc61.3.100 cfhd
>             DURATION        : 00:01:11.240000000
>
>     Output file:
>
>     ffprobe -hide_banner cfhd01_hevc_qsv_pxfmt_y210le.mp4
>     Input #0, mov,mp4,m4a,3gp,3g2,mj2, from
>     'cfhd01_hevc_qsv_pxfmt_y210le.mp4':
>       Metadata:
>         major_brand     : isom
>         minor_version   : 512
>         compatible_brands: isomiso2mp41
>         encoder         : Lavf61.7.100
>       Duration: 00:01:11.24, start: 0.000000, bitrate: 31770 kb/s
>       Stream #0:0[0x1](eng): Video: hevc (Rext) (hev1 / 0x31766568),
>     yuv422p10le(tv, bt709, progressive), 1920x1080 [SAR 1:1 DAR 16:9],
>     31767 kb/s, 25 fps, 25 tbr, 12800 tbn (default)
>           Metadata:
>             handler_name    : Apple Video Media Handler
>             vendor_id       : [0][0][0][0]
>             encoder         : Lavc61.19.100 hevc_qsv
>
>
>
> Good to know.
>
> Hopefully if we on the right track with "just" 10bit yuv420 encoding 
> we will find way to stuff more complex cases in there too ....
>
>
> Does it work with vaapi encoder (system ffmpeg as cli application) too?

I am testing similar now with vaapi and will report on that thread soon.
The above i/o files and simple code line are video only, to avoid 
confusing from 16ch audio in the prores_hq.mov
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