Den 27.08.2024 05:50, skrev Andrew Randrianasulu:


вт, 27 авг. 2024 г., 00:28 Terje J. Hanssen <[email protected]>:



    Den 26.08.2024 17:49, skrev Phyllis Smith:
    *Terje,*
    Not sure why it reports it asSVT-AV1 Encoder Lib v2.2.0**because
    I downloaded what is reported as v2.2.1 here:
    https://gitlab.com/AOMediaCodec/SVT-AV1/-/releases
    and the downloaded tar file was shown as: SVT-AV1-v2.2.1.tar
    Maybe whoever added the mods to create v2.2.1 forgot to update
    the version line.  But at any rate, to prevent future confusion
    for me, I need to leave the tar file named 2.2.1.

    Seemingly this is a minor bug somewhere in this version.
    I upgraded my system SVT-AV1 and lib to v. 2.2.1 and got the same
    result: 2.2.0

    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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