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<div class="moz-cite-prefix">Den 13.11.2024 14:31, skrev Andrew
Randrianasulu:<br>
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<div dir="ltr" class="gmail_attr">ср, 13 нояб. 2024 г.,
15:17 Terje J. Hanssen via Cin <<a
href="mailto:cin@lists.cinelerra-gg.org"
moz-do-not-send="true" class="moz-txt-link-freetext">cin@lists.cinelerra-gg.org</a>>:<br>
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<div> After finishing the three hevc_qsv presets for
_8b420, _10b420 and _10b422 mp4<br>
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I thought to do the corresponding for hevc_vaapi<br>
<br>
However I am struggling to get 10bit 422 output rendered
from Cingg, which so far falls back to 10bit 420 chroma
subsampling<br>
<br>
<font face="Courier New, Courier, monospace">fprobe
-hide_banner hd01_hevc_vaapi_10b422.mp4<br>
Duration: 00:01:11.20, start: 0.000000, bitrate:
11082 kb/s<br>
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)<br>
<br>
<br>
In a previous thread I proved that ffmpeg hevc_vaapi
encoding has this 10bit-422 capability<br>
3) 10-bit yuv422p10le hevc_vaapi encoding using -vf
'format=y210,hwupload'<br>
<a
href="https://lists.cinelerra-gg.org/pipermail/cin/2024-November/008982.html"
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<br>
And yes, there was also issues before
hevc_qsv_10b422.mp4 combinations Pixel format/profile
finally succeeded.<br>
But here are some differences, yet. While hevc_qsv
provided a Pixels drop down menu with pixel formats,<br>
hevc_vaapi just has a single "vaapi" pixel format.<br>
<br>
Any idea why, and what can fulfill the vaapi 10bit 422
encoding here?<br>
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<div dir="auto">I have some idea (hack add some pixel formats to
hevc_vaapi, will only be usable with internal ffmpeg)</div>
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Just to clarify: my tests vaapi tests and qsv tests are run on Cingg
with the onevpl patch and internal ffmpeg<br>
<blockquote type="cite"
cite="mid:CA+rFky5O6qthNV=eRK-7ofsUOjL3jESOGKB8=A7E4uRLLhV24g@mail.gmail.com">
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<div dir="auto"><br>
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<div dir="auto">but for now you can try to modify same place my
10bit encoding patch modified, just with yuv422p10 instead of
420p10.</div>
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Exactly how and where?<br>
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<div dir="auto">sorry, a bit busy with other issues.</div>
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