[Cin] SVT-AV1 library upgraded to v2.2.1

Phyllis Smith phylsmith2017 at gmail.com
Thu Sep 19 00:30:44 CEST 2024


As Terje suggested below ("Therefore I suggest that the Cingg preset make
use of the same SVT-AV1 defaults, to avoid confusing."), I modified and
tested the render format av1_svt.webm to be as follows.

*File contents of cinelerra-5.1/ffmpeg/video/av1_svt.webm*
webm libsvtav1
# If you do not want 10 bit, switch pixel_format
#   to yuv420p which is standard 8 bit.
crf = 35
preset = 6
pixel_format = yuv420p10le

As long as no one objects, I will check this into GIT later.

>
>> What confuse me more, is that Cingg rendering seems out of proportion
>> 2.5x faster than corresponding transcoding the same hdv file using ffmpeg
>> directly. Possibly Cingg calculates the speed after loading the input file,
>> and ffmpeg not(?)
>>
>> hdv09_04.m2t --> hdv09_04_m2t_svt-av1-220_pr6+opus.webm
>>
>> CinGG:  **rendered 5972 frames in 34.052 secs, 175.379 fps
>> FFmpeg: frame= 5963 fps= 69 q=35.0 Lsize=  121908KiB time=00:03:58.77
>> bitrate=4182.4kbits/s speed=2.77x
>>
>> Here is the FFmpeg command line I use, which also out some mpeg2 errors:
>>
>> ffmpeg -hide_banner -i hdv09_04.m2t -c:v libsvtav1 -preset 6 -crf 35 -c:a
>> libopus hdv09_04_m2t_ffmpeg-7_svt-av1-221_pr6+opus.webm
>>
>>
> you can try to add same parameters to av1 profile?
>
> -preset 6 -crf 35
>
> just without "-" and as two lines ...? (commented-out params use preset
> 6/crf 25 - you probably can uncomment and edit second param too)
>
>
> Thank you. Yes, with parameters "preset 6" and "crf 35" the Cingg/FFmpeg
> rendering speed matched:
>
> Cingg: ** rendered 5972 frames in 84.437 secs, 70.727 fps
>
> At first I wondered if perhaps different CPU core utilization had been
> used above. I verified now with top that Cingg used CPU 1400-1500% on a
> 12-core (8-mt/4-st) model: 12th Gen Intel Core i7-12700KF.
>
> I also had a look back into our January conversation about SVT-AV1
> parameters. As already seen above, Cingg output what I think are SVT-AV1
> defaults
>
> Svt[info]: SVT [config]: BRC mode / rate factor                 : CRF /
> 35
>
> Therefore I suggest that the Cingg preset make use of the same SVT-AV1
> defaults, to avoid confusing.
>
> Another suggestion from the Simple SVT-AV1 Beginner guide, is to always
> use 10-bit encoding:
> https://gist.github.com/BlueSwordM/86dfcb6ab38a93a524472a0cbe4c4100
>
>    - I always recommend to use 10-bit (-pix_fmt yuv420p10le) no matter
>    what. It provides a good quality boost in all cases, particularly in darker
>    shades and noisy stuff.
>
> I tested this yuv420p10le pixel format with Cingg too (no yuv42210le
> pix_fmt supported by SVT-AV1 yet):
> Result: 10-bit a bit slower rendering and smaller file size, both my
> samples looks good in my eyes.
>
> Svt[info]: SVT [config]: bit-depth / color format : 10 / YUV420
> ** rendered 5972 frames in 97.816 secs, 61.053 fps
>
> 119M    hdv09_04_m2t_svt-av1-221_cf35_pr6+opus.webm
> 117M    hdv09_04_m2t_svt-av1-221_cf35_pr6_yuv420p10le+opus.webm
>
>
>
>
>
> [mpeg2video @ 0x562aa8f5b4c0] Invalid frame dimensions 0x0.
>>     Last message repeated 3 times
>> [mpegts @ 0x562aa8f55e00] PES packet size mismatch
>> [mpegts @ 0x562aa8f55e00] Packet corrupt (stream = 1, dts = 258142320).
>> [mpegts @ 0x562aa8f55e00] Could not find codec parameters for stream 2
>> (Unknown: none ([160][0][0][0] / 0x00A0)): unknown codec
>> Consider increasing the value for the 'analyzeduration' (0) and
>> 'probesize' (5000000) options
>> [mpegts @ 0x562aa8f55e00] Could not find codec parameters for stream 3
>> (Unknown: none ([161][0][0][0] / 0x00A1)): unknown codec
>> Consider increasing the value for the 'analyzeduration' (0) and
>> 'probesize' (5000000) options
>> Input #0, mpegts, from 'hdv09_04.m2t':
>>   Duration: 00:03:59.06, start: 2629.496000, bitrate: 26110 kb/s
>>   Program 100
>>   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
>>       Side data:
>>         cpb: bitrate max/min/avg: 25000000/0/0 buffer size: 7340032
>> vbv_delay: N/A
>>   Stream #0:1[0x814]: Audio: mp2 (mp3float) ([3][0][0][0] / 0x0003),
>> 48000 Hz, stereo, fltp, 384 kb/s
>>   Stream #0:2[0x815]: Unknown: none ([160][0][0][0] / 0x00A0)
>>   Stream #0:3[0x811]: Unknown: none ([161][0][0][0] / 0x00A1)
>> Stream mapping:
>>   Stream #0:0 -> #0:0 (mpeg2video (native) -> av1 (libsvtav1))
>>   Stream #0:1 -> #0:1 (mp2 (native) -> opus (libopus))
>> Press [q] to stop, [?] for help
>> [libopus @ 0x562aa8f8b940] No bit rate set. Defaulting to 96000 bps.
>> Svt[info]: -------------------------------------------
>> Svt[info]: SVT [version]:    SVT-AV1 Encoder Lib v2.2.0
>> .........snip
>> Output #0, webm, to 'hdv09_04_m2t_ffmpeg-7_svt-av1-221_pr6+opus.webm':
>>   Metadata:
>>     encoder         : Lavf61.1.100
>>   Stream #0:0: Video: av1, yuv420p(tv, bt709, top coded first (swapped)),
>> 1440x1080 [SAR 4:3 DAR 16:9], q=2-31, 25 fps, 1k tbn
>>       Metadata:
>>         encoder         : Lavc61.3.100 libsvtav1
>>   Stream #0:1: Audio: opus, 48000 Hz, stereo, s16, 96 kb/s
>>       Metadata:
>>         encoder         : Lavc61.3.100 libopus
>> [mpegts @ 0x562aa8f55e00] PES packet size mismatch0:03:50.00
>> bitrate=4148.7kbits/s speed=2.75x
>> [mpegts @ 0x562aa8f55e00] Packet corrupt (stream = 1, dts = 258142320).
>> [mpeg2video @ 0x562aa8f86800] ac-tex damaged at 10 61
>> [mpeg2video @ 0x562aa8f86800] Warning MVs not available
>> [mpeg2video @ 0x562aa8f86800] concealing 630 DC, 630 AC, 630 MV errors in
>> P frame
>> [vist#0:0/mpeg2video @ 0x562aa8f5de80] [dec:mpeg2video @ 0x562aa90fa840]
>> corrupt decoded frame
>> [out#0/webm @ 0x562aa8f8d380] video:119306KiB audio:2490KiB subtitle:0KiB
>> other streams:0KiB global headers:0KiB muxing overhead: 0.091528%
>>
>>
>>
>> > RenderFarmClient::main_loop: client started
>>> > FFMPEG::open_decoder: some stream times estimated: /home/guest/0005.avi
>>> > Svt[info]: -------------------------------------------
>>> > Svt[info]: SVT [version]:       SVT-AV1 Encoder Lib v2.2.0
>>>
>>> I also got and noticed the output version
>>>
>>> Svt[info]: SVT [version]: SVT-AV1 Encoder Lib v2.2.0
>>>
>>>
>>> Shouldn't it be SVT-AV1 Lib 2.2.1 as mentioned above
>>>
>>> cinelerra-5.1/thirdparty/src/libsvtav1-v2.2.1.tar.xz
>>>
>>> or possibly the 2.2.1 sub-version isn't shown in the Svt info?
>>>
>>>
>> *Andrey*, if you see this, Andrew has suggested "maybe compilefarm
>> configure command line for new OSes need to be
>> augmented with '--enable-libsvtav1" ?".
>> libsvtav1 requires cmake to be at 3.16 (or so far has been working at
>> 3.12) so we did not want to have failures by making it compile by default
>> in order to not impact older operating systems where it would always fail.
>>
>>
>>
>
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