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<div class="moz-cite-prefix">Den 17.12.2023 00:05, skrev Andrew
Randrianasulu:<br>
</div>
<blockquote type="cite"
cite="mid:CA+rFky4M_OK+yYmnT2ZjFtYt+_dpbn1smq_N3tX8xWvoBBfMXw@mail.gmail.com">
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<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">пт, 15 дек. 2023 г., 21:10
Terje J. Hanssen via Cin <<a
href="mailto:cin@lists.cinelerra-gg.org"
rel="noreferrer noreferrer noreferrer noreferrer noreferrer noreferrer"
target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">cin@lists.cinelerra-gg.org</a>>:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div> <br>
<br>
Anyway, apparently SVT-AV1 libsvtav1 shines as the
superiour fastest and simple to use CPU based AV1
encoder (before GPU hwaccels)<br>
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</blockquote>
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<div dir="auto"><br>
</div>
<div dir="auto">After rebuilding SVT-AV1 on termux for Neon
acceleration I tried three variations of same file:</div>
<div dir="auto"><br>
</div>
<div dir="auto">
<div dir="auto">du -h av1-1.8.0*</div>
<div dir="auto">5.0M av1-1.8.0-pr12.webm</div>
<div dir="auto">4.3M av1-1.8.0-pr2.webm</div>
<div dir="auto">4.6M av1-1.8.0.webm</div>
<div dir="auto"><br>
</div>
<div dir="auto">all on crf 30</div>
<div dir="auto"><br>
</div>
<div dir="auto">ffmpeg -i 20081103140154.m2t -c:v libsvtav1
-an -preset 2 -crf 30 av1-1.8.0-pr2.webm<br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">this one run at 0.2 fps</div>
<div dir="auto"><br>
</div>
<div dir="auto">ffmpeg -i 20081103140154.m2t -c:v libsvtav1
-an -preset 12 -crf 30 av1-1.8.0-pr12.webm<br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">this one run up to 9.4 fps!</div>
<div dir="auto"><br>
</div>
<div dir="auto">ffmpeg -i 20081103140154.m2t -c:v libsvtav1
-an -preset 6 -crf 30 av1-1.8.0.webm<br>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">and this one run at 1.3 fps.</div>
<div dir="auto"><br>
</div>
<div dir="auto">all files encoded from same input:</div>
<div dir="auto"><br>
</div>
<div dir="auto">Stream #0:0[0x810]: Video: mpeg2video (Main)
([2][0][0][0] / 0x0002), yuv420p(tv, bt709, top first),
1440x1080 [SAR 4:3 DAR 16:9], 25000 kb/s, 25 fps, 25 tbr,
90k tbn<br>
</div>
</div>
<div dir="auto"><br>
</div>
<div dir="auto">So, I guess on aarch64 tablet this one
definitely not as fast as on desktop (x86_64) Intel.</div>
<div dir="auto"><br>
</div>
<br>
</div>
</blockquote>
<br>
<br>
<font face="Courier New, Courier, monospace">AV1 Encoding/Rendering:<br>
======================<br>
</font><br>
<font face="Courier New, Courier, monospace">To compare encoding
with FFmpeg/SVT-AV1 v. 1.7.0 and rendering with the current
CinGG/AOM-AV1 (v. 3.1.1?), I used a medium length 1080i HDV clip
(ca. 7 min duration) as input file:<br>
1,3G hdv07_05.m2t<br>
<br>
<br>
239M hdv07_05_m2t_svt-av1_pr10.webm<br>
ffmpeg -i hdv07_05.m2t -c:v libsvtav1 -preset 10 -crf 35 -c:a
libvorbis hdv07_05_m2t_svt-av1_pr10.webm<br>
frame=10240 fps= 68 q=27.0 Lsize= 244069kB time=00:06:58.24
bitrate=4780.5kbits/s speed=2.78x <br>
<br>
<br>
235M hdv07_05_cingg_aom-av1.webm<br>
Rendering with CinGG/AOM-AV1<br>
Rendering took 0:37:06 = 2226 sek<br>
FPS=10240/2226=4.6<br>
<br>
<br>
Rendering speed results: <br>
------------------------<br>
68 FPS vs 4.6 FPS<br>
<br>
<br>
FFplay playback:<br>
===============<br>
<br>
</font><font face="Courier New, Courier, monospace">hdv07_05_m2t_svt-av1_pr10.webm<br>
------------------------------<br>
</font><font face="Courier New, Courier, monospace">ffplay
-hide_banner hdv07_05_m2t_svt-av1_pr10.webm<br>
[libdav1d @ 0x7fe318004880] libdav1d 1.3.0 0KB sq= 0B f=0/0
<br>
Input #0, matroska,webm, from 'hdv07_05_m2t_svt-av1_pr10.webm':<br>
Metadata:<br>
ENCODER : Lavf60.3.100<br>
Duration: 00:06:58.28, start: 0.000000, bitrate: 4780 kb/s<br>
Stream #0:0: Video: av1 (Main), yuv420p(tv, bt709), 1440x1080,
SAR 4:3 DAR 16:9, 25 fps, 25 tbr, 1k tbn<br>
Metadata:<br>
ENCODER : Lavc60.3.100 libsvtav1<br>
DURATION : 00:06:58.283000000<br>
Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp<br>
Metadata:<br>
ENCODER : Lavc60.3.100 libvorbis<br>
DURATION : 00:06:57.939000000<br>
[libdav1d @ 0x7fe3180d5b80] libdav1d 1.3.0<br>
20.51 A-V: -0.032 fd= 0 aq= 12KB vq= 310KB sq= 0B f=0/0
<br>
<br>
<br>
</font><font face="Courier New, Courier, monospace">hdv07_05_cingg_aom-av1.webm<br>
----------------------------<br>
</font><font face="Courier New, Courier, monospace">ffplay
-hide_banner hdv07_05_cingg_aom-av1.webm<br>
[libdav1d @ 0x7f3650004640] libdav1d 1.3.0 0KB sq= 0B f=0/0
<br>
Input #0, matroska,webm, from 'hdv07_05_cingg_aom-av1.webm':f=0/0
<br>
Metadata:<br>
ENCODER : Lavf60.16.100<br>
Duration: 00:06:58.08, start: 0.000000, bitrate: 4708 kb/s<br>
Stream #0:0: Video: av1 (Main), yuv420p(tv,
bt470bg/unknown/unknown), 1440x1080, SAR 1:1 DAR 4:3, 25 fps, 25
tbr, 1k tbn<br>
Metadata:<br>
DURATION : 00:06:58.043000000<br>
Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp<br>
Metadata:<br>
DURATION : 00:06:58.082000000<br>
[libdav1d @ 0x7f36500da540] libdav1d 1.3.0<br>
24.95 A-V: -0.008 fd= 3 aq= 21KB vq= 583KB sq= 0B f=0/0
<br>
<br>
<br>
VLC Playback (copied codec info from GUI Tool tab)<br>
============<br>
<br>
vlc hdv07_05_m2t_svt-av1_pr10.webm<br>
----------------------------------<br>
Stream 0<br>
Codec: AOMedia's AV1 Video (av01)<br>
Type: Video<br>
Video resolution: 1440x1080<br>
Buffer dimensions: 1536x1152<br>
Frame rate: 25<br>
Decoded format: Planar 4:2:0 YUV<br>
Orientation: Top left<br>
Color primaries: ITU-R BT.709<br>
Color transfer function: ITU-R BT.709<br>
Stream 1<br>
Codec: Vorbis Audio (vorb)<br>
Type: Audio<br>
Channels: Stereo<br>
Sample rate: 48000 Hz<br>
Bits per sample: 32<br>
Bitrate: 112 kb/s<br>
encoder: Lavc60.3.100<br>
<br>
<br>
vlc hdv07_05_cingg_aom-av1.webm<br>
-------------------------------<br>
Stream 0<br>
Codec: AOMedia's AV1 Video (av01)<br>
Type: Video<br>
Video resolution: 1440x1080<br>
Buffer dimensions: 1536x1152<br>
Frame rate: 25<br>
Decoded format: Planar 4:2:0 YUV<br>
Orientation: Top left<br>
Color space: ITU-R BT.601 Range<br>
Stream 1<br>
Codec: Vorbis Audio (vorb)<br>
Type: Audio<br>
Channels: Stereo<br>
Sample rate: 48000 Hz<br>
Bits per sample: 32<br>
Bitrate: 112 kb/s<br>
encoder: Lavc60.31.102<br>
<br>
<br>
Playback results:<br>
-----------------<br>
<br>
hdv07_05_m2t_svt-av1_pr10.webm<br>
------------------------------<br>
FFplay and VLC: Correct playback of HDV 16:9 (DAR) Video and
correct Audio<br>
BT.709 Colors should be correct for HD(V) video<br>
<br>
<br>
hdv07_05_cingg_aom-av1.webm<br>
----------------------------<br>
FFplay and VLC: wrong playback of HDV 4:3 (DAR) Video,<br>
and som screeching (scratch) sound on Audio <br>
</font><font face="Courier New, Courier, monospace">BT.601 colors is
seemingly for (older) SD video</font><br>
<font face="Courier New, Courier, monospace">That said, I just
loaded the HDV clip in Cin-GG without change of the default
Preferences,<br>
so this can probably be corrected/tuned.<br>
<br>
<br>
</font><br>
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