Den 29.12.2023 19:27, skrev Terje J. Hanssen:
Den 29.12.2023 11:56, skrev Andrew Randrianasulu:
пт, 29 дек. 2023 г., 05:01 Terje J. Hanssen <[email protected]>:
Den 17.12.2023 00:05, skrev Andrew Randrianasulu:
пт, 15 дек. 2023 г., 21:10 Terje J. Hanssen via Cin
<[email protected]>:
Anyway, apparently SVT-AV1 libsvtav1 shines as the superiour
fastest and simple to use CPU based AV1 encoder (before GPU
hwaccels)
After rebuilding SVT-AV1 on termux for Neon acceleration I tried
three variations of same file:
du -h av1-1.8.0*
5.0M av1-1.8.0-pr12.webm
4.3M av1-1.8.0-pr2.webm
4.6M av1-1.8.0.webm
all on crf 30
ffmpeg -i 20081103140154.m2t -c:v libsvtav1 -an -preset 2 -crf
30 av1-1.8.0-pr2.webm
this one run at 0.2 fps
ffmpeg -i 20081103140154.m2t -c:v libsvtav1 -an -preset 12 -crf
30 av1-1.8.0-pr12.webm
this one run up to 9.4 fps!
ffmpeg -i 20081103140154.m2t -c:v libsvtav1 -an -preset 6 -crf
30 av1-1.8.0.webm
and this one run at 1.3 fps.
all files encoded from same input:
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
So, I guess on aarch64 tablet this one definitely not as fast as
on desktop (x86_64) Intel.
AV1 Encoding/Rendering:
======================
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:
1,3G hdv07_05.m2t
239M hdv07_05_m2t_svt-av1_pr10.webm
ffmpeg -i hdv07_05.m2t -c:v libsvtav1 -preset 10 -crf 35 -c:a
libvorbis hdv07_05_m2t_svt-av1_pr10.webm
frame=10240 fps= 68 q=27.0 Lsize= 244069kB time=00:06:58.24
bitrate=4780.5kbits/s speed=2.78x
235M hdv07_05_cingg_aom-av1.webm
Rendering with CinGG/AOM-AV1
Rendering took 0:37:06 = 2226 sek
FPS=10240/2226=4.6
Rendering speed results:
------------------------
68 FPS vs 4.6 FPS
FFplay playback:
===============
hdv07_05_m2t_svt-av1_pr10.webm
------------------------------
ffplay -hide_banner hdv07_05_m2t_svt-av1_pr10.webm
[libdav1d @ 0x7fe318004880] libdav1d 1.3.0 0KB sq= 0B f=0/0
Input #0, matroska,webm, from 'hdv07_05_m2t_svt-av1_pr10.webm':
Metadata:
ENCODER : Lavf60.3.100
Duration: 00:06:58.28, start: 0.000000, bitrate: 4780 kb/s
Stream #0:0: Video: av1 (Main), yuv420p(tv, bt709), 1440x1080,
SAR 4:3 DAR 16:9, 25 fps, 25 tbr, 1k tbn
Metadata:
ENCODER : Lavc60.3.100 libsvtav1
DURATION : 00:06:58.283000000
Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp
Metadata:
ENCODER : Lavc60.3.100 libvorbis
DURATION : 00:06:57.939000000
[libdav1d @ 0x7fe3180d5b80] libdav1d 1.3.0
20.51 A-V: -0.032 fd= 0 aq= 12KB vq= 310KB sq= 0B f=0/0
hdv07_05_cingg_aom-av1.webm
----------------------------
ffplay -hide_banner hdv07_05_cingg_aom-av1.webm
[libdav1d @ 0x7f3650004640] libdav1d 1.3.0 0KB sq= 0B f=0/0
Input #0, matroska,webm, from 'hdv07_05_cingg_aom-av1.webm':f=0/0
Metadata:
ENCODER : Lavf60.16.100
Duration: 00:06:58.08, start: 0.000000, bitrate: 4708 kb/s
Stream #0:0: Video: av1 (Main), yuv420p(tv,
bt470bg/unknown/unknown), 1440x1080, SAR 1:1 DAR 4:3, 25 fps, 25
tbr, 1k tbn
Metadata:
DURATION : 00:06:58.043000000
Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp
Metadata:
DURATION : 00:06:58.082000000
[libdav1d @ 0x7f36500da540] libdav1d 1.3.0
24.95 A-V: -0.008 fd= 3 aq= 21KB vq= 583KB sq= 0B f=0/0
VLC Playback (copied codec info from GUI Tool tab)
============
vlc hdv07_05_m2t_svt-av1_pr10.webm
----------------------------------
Stream 0
Codec: AOMedia's AV1 Video (av01)
Type: Video
Video resolution: 1440x1080
Buffer dimensions: 1536x1152
Frame rate: 25
Decoded format: Planar 4:2:0 YUV
Orientation: Top left
Color primaries: ITU-R BT.709
Color transfer function: ITU-R BT.709
Stream 1
Codec: Vorbis Audio (vorb)
Type: Audio
Channels: Stereo
Sample rate: 48000 Hz
Bits per sample: 32
Bitrate: 112 kb/s
encoder: Lavc60.3.100
vlc hdv07_05_cingg_aom-av1.webm
-------------------------------
Stream 0
Codec: AOMedia's AV1 Video (av01)
Type: Video
Video resolution: 1440x1080
Buffer dimensions: 1536x1152
Frame rate: 25
Decoded format: Planar 4:2:0 YUV
Orientation: Top left
Color space: ITU-R BT.601 Range
Stream 1
Codec: Vorbis Audio (vorb)
Type: Audio
Channels: Stereo
Sample rate: 48000 Hz
Bits per sample: 32
Bitrate: 112 kb/s
encoder: Lavc60.31.102
Playback results:
-----------------
hdv07_05_m2t_svt-av1_pr10.webm
------------------------------
FFplay and VLC: Correct playback of HDV 16:9 (DAR) Video and
correct Audio
BT.709 Colors should be correct for HD(V) video
hdv07_05_cingg_aom-av1.webm
----------------------------
FFplay and VLC: wrong playback of HDV 4:3 (DAR) Video,
and som screeching (scratch) sound on Audio
BT.601 colors is seemingly for (older) SD video
That said, I just loaded the HDV clip in Cin-GG without change of
the default Preferences,
so this can probably be corrected/tuned.
well, lack of correct (display) aspect ratio on output, as well as
distorted sound is concerning!
Can you try another audio encoder, and may be manually set 'format'
parameters, if container-level aspect ratio still not set up
automatically?
Within Settings | Format I selected "our" Preset "HDV 1080i/25".
The Color model changed from RGB-8 bit to YUVA-8 bit. but I didn't see
it change of geometry parameters.
Still the Canvas size was: Width:1440, Height:1080, W Ratio:1.0, H
Ratio:1.0, Aspect Ratio:16.0:9.0
If the latter Aspect Ratio is equivalent to FFmpeg's DAR 16:9,
shouldn't W Ratio and H Ratio be equivalent to FFmpegs pixel aspect
ratio SAR 4:3 as in the svt-av1 encoded file?
Or generic: Would it be possible to automatic get the format
parameters identical to how FFmpeg (FFprobe) read the source file?
And like SVT-AV1: By default SVT-AV1 will encode 10-bit sources to
10-bit outputs and 8-bit to 8-bit.
---------------
I tested also Cin-GG/aom-av1 rendering of 20081103140154.m2t hdv file
(you used above with ffmpeg.)
The same result, display aspect ratio is 4:3. Actually as soon the
files are saved to disk, Gnome File manager show them visually like
the 4:3 SD icons.
Could you possibly try to render the same file using CinGG av1.webm to
verify what happends ?
Incidentally I managed to get 20081103140154_m2t_cingg_aom-av1.webm
rendered and playback with the correct 16:9 Aspect ratio.
But only for that single hdv file, not for my own hdv07_5xx.webm files
ffplay -hide_banner 20081103140154_m2t_cingg_aom-av1.webm
[libdav1d @ 0x7faf50005a80] libdav1d 1.0.0 0KB sq= 0B f=0/0
Input #0, matroska,webm, from '20081103140154_m2t_cingg_aom-av1.webm':
Metadata:
ENCODER : Lavf60.16.100
Duration: 00:00:13.44, start: 0.000000, bitrate: 1515 kb/s
Stream #0:0: Video: av1 (Main), yuv420p(tv,
bt470bg/unknown/unknown), 1440x810 [SAR 1:1 DAR 16:9], 25 fps, 25
tbr, 1k tbn, 1k tbc
Metadata:
DURATION : 00:00:13.403000000
Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp
Metadata:
DURATION : 00:00:13.441000000
[libdav1d @ 0x7faf500b7900] libdav1d 1.0.0
7.67 A-V: 0.032 fd= 0 aq= 19KB vq= 230KB sq= 0B f=0/0
--
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