[Cin] 10bit VAAPI encoding preset

[Terje J. Hanssen]

Den 13.11.2024 14:31, skrev Andrew Randrianasulu:
>
>
> ср, 13 нояб. 2024 г., 15:17 Terje J. Hanssen via Cin 
> <cin at lists.cinelerra-gg.org>:
>
>     After finishing the three hevc_qsv presets for _8b420, _10b420 and
>     _10b422 mp4
>     https://lists.cinelerra-gg.org/pipermail/cin/2024-November/009039.html
>
>     I thought to do the corresponding for hevc_vaapi
>
>     However I am struggling to get 10bit 422 output rendered from
>     Cingg, which so far falls back to 10bit 420 chroma subsampling
>
>     fprobe -hide_banner hd01_hevc_vaapi_10b422.mp4
>       Duration: 00:01:11.20, start: 0.000000, bitrate: 11082 kb/s
>       Stream #0:0[0x1](und): Video: hevc (Main 10) (hev1 /
>     0x31766568), yuv420p10le(tv, bt709/unknown/unknown, top coded
>     first (swapped)), 1920x1080 [SAR 1:1 DAR 16:9], 11080 kb/s, 25
>     fps, 25 tbr, 12800 tbn (default)
>
>
>     In a previous thread I proved that ffmpeg hevc_vaapi encoding has
>     this 10bit-422 capability
>     3) 10-bit yuv422p10le hevc_vaapi encoding using -vf
>     'format=y210,hwupload'
>     https://lists.cinelerra-gg.org/pipermail/cin/2024-November/008982.html
>
>
>     And yes, there was also issues before hevc_qsv_10b422.mp4
>     combinations Pixel format/profile finally succeeded.
>     But here are some differences, yet. While hevc_qsv provided a
>     Pixels drop down menu with pixel formats,
>     hevc_vaapi just has a single "vaapi" pixel format.
>
>     Any idea why, and what can fulfill the vaapi 10bit 422 encoding here?
>
>
>
> I have some idea (hack add some pixel formats to hevc_vaapi, will only 
> be usable with internal ffmpeg)

Just to clarify: my tests vaapi tests and qsv tests are run on Cingg 
with the onevpl patch and internal ffmpeg
>
> but for now you can try to modify same place my 10bit encoding patch 
> modified, just with yuv422p10 instead of 420p10.

Exactly how and where?

>
> sorry, a bit busy with other issues.
>
>
>
>
>
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