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<div class="moz-cite-prefix">Den 30.12.2023 18:38, skrev Andrew
Randrianasulu:<br>
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cite="mid:CA+rFky5RcbTNF3F7QxE=foUmEMUT7qenKAxTSV2hgjTtC=yk2w@mail.gmail.com">
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<div dir="ltr" class="gmail_attr">сб, 30 дек. 2023 г., 18:28
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>Den 30.12.2023 10:03, skrev Andrea paz:<br>
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<pre>If SVT-AV1 1.8.0 rendering is possible with cin-aom-38_svt.AppImage, where do you select this?
</pre>
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<pre>Among the webm presets should also appear av1-svt.webm, the profile
created by Andrew; see image:
<a href="https://postimg.cc/cgjQfR11" target="_blank" rel="noreferrer"
moz-do-not-send="true" class="moz-txt-link-freetext">https://postimg.cc/cgjQfR11</a>
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Yes, thanks I found it. I had not looked there or simply
overseen it, as it normally is referred to as svt-av1 :)<br>
And SVT-AV1 1.8 confirms to be VERY FAST and of most
interest as default CPU AV1 encoder (also for CinGG?) <br>
<blockquote>As mentioned in Phoronix recent release
article: <a
href="https://www.phoronix.com/news/SVT-AV1-1.8-Released"
target="_blank" rel="noreferrer"
moz-do-not-send="true" class="moz-txt-link-freetext">https://www.phoronix.com/news/SVT-AV1-1.8-Released</a><br>
SVT-AV1 1.8 brings more speed-ups at various preset
levels -- especially M0 to M6 where there can be gains
as much as 53%.<br>
</blockquote>
Two Cin-GG AV1-SVT rendering tests of the same loaded
hdv07_05.m2t clip took 0:02:54 and 0:02:51 respectively.<br>
If not due to technical issues (see the attached
messages), that is impressive FPS = 10240/172 = 59.5 or
2.4x faster than the clip duration!<br>
And compared to the AOM 3.8 40-minutes rendering above,
this is 14.3x times faster!<br>
The CinGG svt-av1 v.1.8 preset seemed to use Preset 6
and CRF 26<br>
<br>
In comparison I started a temporary test with the same
FFmpeg SVT-AV1 v. 1.7 Preset 6, which seemed to perform
much slower (ca. 8 FPS).<br>
The default faster Preset 10 and CRF 35 from my previous
FFPmpeg test of the same clip provided 68 FPS.<br>
<br>
That is, very Promising SVT-AV1 speed rendering, BUT<br>
the HDV Aspect ratio and broken Audio has to be fixed in
CinGG<br>
yuv420p(pc, smpte170m/unknown/unknown), 1440x1080 [SAR
1:1 DAR 4:3]<br>
<br>
Or the procedure has to be clarified, in case I have
done something wrong or inadequate.<br>
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<div dir="auto">for aspect ratio I just send out patch hopefully
fixing this.</div>
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<div dir="auto">For audio - try opus/webm as audio encoder?</div>
<div dir="auto"><br>
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<div dir="auto">For colorspace - set it to bt709 as illustrated
here </div>
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<div dir="auto"><a
href="https://cinelerra-gg.org/download/CinelerraGG_Manual/Color_Space_Color_Range_Aff.html"
moz-do-not-send="true" class="moz-txt-link-freetext">https://cinelerra-gg.org/download/CinelerraGG_Manual/Color_Space_Color_Range_Aff.html</a><br>
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<br>
While waiting for a patched aspect ratio version, I've tried the
other suggestions:<br>
<blockquote>opus/webm audio encoder<br>
Colorspace bt709<br>
<br>
</blockquote>
This fixed the audio issue and extended the file size and rendering
time with 50%<br>
** rendered 10452 frames in 232.659 secs, 44.924 fps<br>
<br>
Attach also the rendering messages<br>
<br>
<blockquote>du -sh hdv07*<br>
235M hdv07_05_cingg_aom-av1.webm<br>
241M hdv07_05_m2t_cingg_aom38-av1.webm<br>
284M hdv07_05_m2t_cingg_svt-av1_pr6+opus.webm<br>
220M hdv07_05_m2t_cingg_svt-av1_pr6.webm<br>
239M hdv07_05_m2t_svt-av1_pr10.webm<br>
229M hdv07_05_m2t_svt-av1_pr6.webm<br>
<br>
<br>
ffplay -hide_banner hdv07_05_m2t_cingg_svt-av1_pr6+opus.webm<br>
[libdav1d @ 0x7f7eb4003700] libdav1d 1.3.0<br>
Input #0, matroska,webm, from
'hdv07_05_m2t_cingg_svt-av1_pr6+opus.webm':<br>
Metadata:<br>
ENCODER : Lavf60.16.100<br>
Duration: 00:06:58.08, start: -0.007000, bitrate: 5689 kb/s<br>
Stream #0:0: Video: av1 (Main), yuv420p(pc,
bt709/unknown/unknown), 1440x1080, SAR 1:1 DAR 4:3, 25 fps, 25
tbr, 1k tbn<br>
Metadata:<br>
DURATION : 00:06:58.080000000<br>
Stream #0:1(eng): Audio: opus, 48000 Hz, stereo, fltp<br>
Metadata:<br>
DURATION : 00:06:58.068000000<br>
[libdav1d @ 0x7f7eb4057000] libdav1d 1.3.0<br>
41.58 A-V: -0.037 fd= 0 aq= 12KB vq= 269KB sq= 0B
f=0/0 <br>
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