[Cin] SVT-AV1 encoding quite fast on x86_64
Terje J. Hanssen
terjejhanssen at gmail.com
Fri Dec 15 17:59:36 CET 2023
Den 14.12.2023 12:25, skrev Terje J. Hanssen:
> First, a summary from another current post and thread:
> https://lists.cinelerra-gg.org/pipermail/cin/2023-December/007430.html
>
>> I will add the re-encoded sample *SD DV *file using ffmpeg SVT-AV1,
>> as I was positive surprised how much faster (preset 10 about 25 sec)
>> it was than rendering AV1 with CinGG (libaom?) . I've tested three
>> presets: 8, 10 and 12. "Useable visible quality" for all.
>>
>> ffmpeg -i dv01_07.dv -c:v libsvtav1 -preset 8 -crf 35 -c:a
>> libvorbis dv01_07_svt-av1_pr8.webm
>> frame= 2832 fps= 66 q=35.0 Lsize= 28836kB time=00:01:53.26
>> bitrate=2085.6kbits/s speed=2.65x
>>
>> ffmpeg -i dv01_07.dv -c:v libsvtav1 -preset 10 -crf 35 -c:a
>> libvorbis dv01_07_svt-av1_pr10.webm
>> frame= 2832 *fps=112* q=35.0 Lsize= 34419kB time=00:01:53.26
>> bitrate=2489.4kbits/s speed=4.47x
>>
>> ffmpeg -i dv01_07.dv -c:v libsvtav1 -preset 12 -crf 35 -c:a
>> libvorbis dv01_07_svt-av1_pr12.webm
>> frame= 2832 fps=262 q=35.0 Lsize= 35913kB time=00:01:53.26
>> bitrate=2597.5kbits/s speed=10.5x
>
>
> The speed of SVT-AV1 encoding seems for me to be quite useable, at
> least for personal use.
As a reference to compare the SVT-AV1 results above, I've also tried to
encode the same input file using libaom-av1 and librav1e
with simple or none (default) parameters. Other, optimal tuned
parameters may possibly change the unsuccesful results here.
Seemingly something have to be wrong here, as I had to quit these
hopeless SLOW encoding attemps after a while:
ffmpeg -i dv01_07.dv -c:v libaom-av1 -crf 30 -c:a libvorbis
dv01_07_libaom-av1.webm
^C^Ze= 35 fps=0.1 q=0.0 size= 5kB time=00:00:03.00 bitrate=
13.7kbits/s speed=0.00748x
ffmpeg -i dv01_07.dv -c:v librav1e -c:a libvorbis dv01_07_librav1e.webm
frame= 471 fps=1.9 q=-0.0 Lsize= 4864kB time=00:00:19.11
bitrate=2084.4kbits/s speed=0.0791x
The CPU (i7 quad-cores 8 threads) utilization was here between 100-200%,
while I think it ran at 700%+ for SVT-AV1.
Anyway, apparently SVT-AV1 libsvtav1 shines as the superiour fastest and
simple to use CPU based AV1 encoder (before GPU hwaccels)
Ref:
https://ottverse.com/analysis-of-svt-av1-presets-and-crf-values/
>
> Here I add my latest test results for a *HDV (fps=69)* and a *FHD
> (fps=51)* video clip.
>
> 2.0G hdv01_04.m2t
> 383M hdv01_04_m2t_svt-av1_pr10.webm
>
> 1.7G hd01.mov
> 20M hd01_mov_svt-av1_pr10.webm
>
>
> *HDV* (yuv420p)
> -------
>
> *ffprobe -hide_banner hdv01_04.m2t*
> [mpeg2video @ 0x560c32966340] Invalid frame dimensions 0x0.
> Last message repeated 7 times
> [mpegts @ 0x560c32960c00] PES packet size mismatch
> [mpegts @ 0x560c32960c00] Packet corrupt (stream = 1, dts =
> 295380000).
> [mpegts @ 0x560c32960c00] 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 @ 0x560c32960c00] 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 'hdv01_04.m2t':
> Duration: 00:10:57.34, start: 2624.856000, bitrate: 26134 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 ([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)
> Unsupported codec with id 0 for input stream 2
> Unsupported codec with id 0 for input stream 3
> --------------
>
> *ffmpeg -i hdv01_04.m2t -c:v libsvtav1 -preset 10 -crf 35 -c:a
> libvorbis hdv01_04_m2t_svt-av1_pr10.webm*
> frame=16420 *fps= 69* q=34.0 Lsize= 391289kB time=00:10:57.36
> bitrate=4876.2kbits/s speed=2.77x
>
>
> *ffprobe -hide_banner hdv01_04_m2t_svt-av1_pr10.webm*
> [libdav1d @ 0x562b42305540] libdav1d 1.3.0
> Input #0, matroska,webm, from 'hdv01_04_m2t_svt-av1_pr10.webm':
> Metadata:
> ENCODER : Lavf60.3.100
> Duration: 00:10:57.40, start: 0.000000, bitrate: 4875 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 : 00:10:57.403000000
> Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp
> Metadata:
> ENCODER : Lavc60.3.100 libvorbis
> DURATION : 00:10:57.171000000
> [libdav1d @ 0x562b42361540] libdav1d 1.3.0
>
> *FHD* *(*yuv422p10le*)*
> -----
>
> *ffprobe hd01.mov*
> .....
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hd01.mov':
> Metadata:
> creation_time : 2016-02-23T23:49:21.000000Z
> Duration: 00:01:11.28, start: 0.000000, bitrate: 200496 kb/s
> Stream #0:0[0x1](eng): Video: prores (HQ) (apch / 0x68637061),
> *yuv422p10le(bt709*, top coded first (swapped)), 1920x1080, 182130
> kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 2500 tbn (default)
> Metadata:
> creation_time : 2016-02-23T23:49:21.000000Z
> handler_name : Apple Video Media Handler
> vendor_id : appl
> encoder : Apple ProRes 422 (HQ)
> Stream #0:1[0x2](eng): *Audio*: pcm_s24le (lpcm / 0x6D63706C),
> 48000 Hz, 16 channels, s32 (24 bit), 18432 kb/s (default)
> Metadata:
> creation_time : 2016-02-23T23:49:21.000000Z
> handler_name : Apple Sound Media Handler
> vendor_id : [0][0][0][0]
>
> *
> ffmpeg -i hd01.mov -c:v libsvtav1 -preset 10 -crf 35 -c:a
> libvorbis hd01_mov_svt-av1_pr10.webm*
> frame= 1781 *fps= 51* q=35.0 Lsize= 19732kB time=00:01:11.26
> bitrate=2268.3kbits/s speed=2.03x
>
>
> *ffprobe -hide_banner hdv01_04_m2t_svt-av1_pr10.webm*
> [libdav1d @ 0x562b42305540] libdav1d 1.3.0
> Input #0, matroska,webm, from 'hdv01_04_m2t_svt-av1_pr10.webm':
> Metadata:
> ENCODER : Lavf60.3.100
> Duration: 00:10:57.40, start: 0.000000, bitrate: 4875 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 : 00:10:57.403000000
> Stream #0:1: Audio: vorbis, 48000 Hz, stereo, fltp
> Metadata:
> ENCODER : Lavc60.3.100 libvorbis
> DURATION : 00:10:57.171000000
>
>
> An issue is that the audio was lost during the conversion from .mov to
> .webm, so I attach the full ffmpeg output below.
> (possibly a mis-match regarding the audio stream #numbers ?)
>
> *ffmpeg -i hd01.mov -c:v libsvtav1 -preset 10 -crf 35 -c:a
> libvorbis hd01_mov_svt-av1_pr10.webm*
> ...
> Guessed Channel Layout for Input Stream #0.1 : hexadecagonal
> Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'hd01.mov':
> Metadata:
> creation_time : 2016-02-23T23:49:21.000000Z
> Duration: 00:01:11.28, start: 0.000000, bitrate: 200496 kb/s
> Stream #0:0[0x1](eng): Video: prores (HQ) (apch / 0x68637061),
> yuv422p10le(bt709, top coded first (swapped)), 1920x1080, 182130
> kb/s, SAR 1:1 DAR 16:9, 25 fps, 25 tbr, 2500 tbn (default)
> Metadata:
> creation_time : 2016-02-23T23:49:21.000000Z
> handler_name : Apple Video Media Handler
> vendor_id : appl
> encoder : Apple ProRes 422 (HQ)
> Stream #0:1[0x2](eng): Audio: pcm_s24le (lpcm / 0x6D63706C),
> 48000 Hz, 16 channels, s32 (24 bit), 18432 kb/s (default)
> Metadata:
> creation_time : 2016-02-23T23:49:21.000000Z
> handler_name : Apple Sound Media Handler
> vendor_id : [0][0][0][0]
> Stream mapping:
> Stream #0:0 -> #0:0 (prores (native) -> av1 (libsvtav1))
> Stream #0:1 -> #0:1 (pcm_s24le (native) -> vorbis (libvorbis))
> Press [q] to stop, [?] for help
> Svt[info]: -------------------------------------------
> Svt[info]: SVT [version]: SVT-AV1 Encoder Lib v1.7.0
> Svt[info]: SVT [build] : GCC 13.2.1 20230912 [revision
> b96e66fd4ef3e36983969fb8cdd1956f551a074b] 64 bit
> Svt[info]: LIB Build date: Nov 3 2023 00:00:00
> Svt[info]: -------------------------------------------
> Svt[info]: Number of logical cores available: 8
> Svt[info]: Number of PPCS 59
> Svt[info]: [asm level on system : up to avx2]
> Svt[info]: [asm level selected : up to avx2]
> Svt[info]: -------------------------------------------
> Svt[info]: SVT [config]: main profile tier (auto) level (auto)
> Svt[info]: SVT [config]: width / height / fps numerator / fps
> denominator : 1920 / 1080 / 25 / 1
> Svt[info]: SVT [config]: bit-depth / color format
> : 10 / YUV420
> Svt[info]: SVT [config]: preset / tune / pred struct
> : 10 / PSNR / random access
> Svt[info]: SVT [config]: gop size / mini-gop size / key-frame type
> : 161 / 16 / key frame
> Svt[info]: SVT [config]: BRC mode / rate factor
> : CRF / 35
> Svt[info]: -------------------------------------------
> Output #0, webm, to 'hd01_mov_svt-av1_pr10.webm':
> Metadata:
> encoder : Lavf60.3.100
> Stream #0:0(eng): Video: av1, yuv420p10le(tv, bt709, top coded
> first (swapped)), 1920x1080 [SAR 1:1 DAR 16:9], q=2-31, 25 fps, 1k
> tbn (default)
> Metadata:
> creation_time : 2016-02-23T23:49:21.000000Z
> handler_name : Apple Video Media Handler
> vendor_id : appl
> encoder : Lavc60.3.100 libsvtav1
> Stream #0:1(eng): Audio: vorbis, 48000 Hz, hexadecagonal, fltp
> (default)
> Metadata:
> creation_time : 2016-02-23T23:49:21.000000Z
> handler_name : Apple Sound Media Handler
> vendor_id : [0][0][0][0]
> encoder : Lavc60.3.100 libvorbis
> frame= 1781 fps= 51 q=35.0 Lsize= 19732kB time=00:01:11.26
> bitrate=2268.3kbits/s speed=2.03x
> video:18635kB audio:1059kB subtitle:0kB other streams:0kB global
> headers:3kB muxing overhead: 0.193378%
>
>
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