[FFmpeg-user] Fwd: FFMPEG SLOW (new versions)

[Carl Zwanzig]

(reply to the list, not to the person unless requested)

-------- Forwarded Message --------
Subject: Re: [FFmpeg-user] FFMPEG SLOW (new versions)
Date: Thu, 9 Jan 2025 20:53:27 +0100
From: Giovanni Fast1 <gdvalle at fastwebnet.it>
To: Carl Zwanzig <cpz at tuunq.com>

Dear mr. Carl,

the ffmpeg exe that is fast is the following

ffmpeg version 4.4.1-full_build-www.gyan.dev Copyright (c) 2000-2021 the 
FFmpeg developers
built with gcc 11.2.0 (Rev1, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static 
--disable-w32threads --disable-autodetect --enable-fontconfig 
--enable-iconv --enable-gnutls --enable-libxml2 --enable-gmp 
--enable-lzma --enable-libsnappy --enable-zlib --enable-librist 
--enable-libsrt --enable-libssh --enable-libzmq --enable-avisynth 
--enable-libbluray --enable-libcaca --enable-sdl2 --enable-libdav1d 
--enable-libzvbi --enable-librav1e --enable-libsvtav1 --enable-libwebp 
--enable-libx264 --enable-libx265 --enable-libxvid --enable-libaom 
--enable-libopenjpeg --enable-libvpx --enable-libass --enable-frei0r 
--enable-libfreetype --enable-libfribidi --enable-libvidstab 
--enable-libvmaf --enable-libzimg --enable-amf --enable-cuda-llvm 
--enable-cuvid --enable-ffnvcodec --enable-nvdec --enable-nvenc 
--enable-d3d11va --enable-dxva2 --enable-libmfx --enable-libglslang 
--enable-vulkan --enable-opencl --enable-libcdio --enable-libgme 
--enable-libmodplug --enable-libopenmpt --enable-libopencore-amrwb 
--enable-libmp3lame --enable-libshine --enable-libtheora 
--enable-libtwolame --enable-libvo-amrwbenc --enable-libilbc 
--enable-libgsm --enable-libopencore-amrnb --enable-libopus 
--enable-libspeex --enable-libvorbis --enable-ladspa --enable-libbs2b 
--enable-libflite --enable-libmysofa --enable-librubberband 
--enable-libsoxr --enable-chromaprint
libavutil      56. 70.100 / 56. 70.100
libavcodec     58.134.100 / 58.134.100
libavformat    58. 76.100 / 58. 76.100
libavdevice    58. 13.100 / 58. 13.100
libavfilter     7.110.100 /  7.110.100
libswscale      5.  9.100 /  5.  9.100
libswresample   3.  9.100 /  3.  9.100
libpostproc    55.  9.100 / 55.  9.100

The one that is slow is the following

ffmpeg version 2024-12-27-git-5f38c82536-full_build-www.gyan.dev 
Copyright (c) 2000-2024 the FFmpeg developers
built with gcc 14.2.0 (Rev1, Built by MSYS2 project)
configuration: --enable-gpl --enable-version3 --enable-static 
--disable-w32threads --disable-autodetect --enable-fontconfig 
--enable-iconv --enable-gnutls --enable-lcms2 --enable-libxml2 
--enable-gmp --enable-bzlib --enable-lzma --enable-libsnappy 
--enable-zlib --enable-librist --enable-libsrt --enable-libssh 
--enable-libzmq --enable-avisynth --enable-libbluray --enable-libcaca 
--enable-sdl2 --enable-libaribb24 --enable-libaribcaption 
--enable-libdav1d --enable-libdavs2 --enable-libopenjpeg 
--enable-libquirc --enable-libuavs3d --enable-libxevd --enable-libzvbi 
--enable-libqrencode --enable-librav1e --enable-libsvtav1 
--enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs2 
--enable-libxeve --enable-libxvid --enable-libaom --enable-libjxl 
--enable-libvpx --enable-mediafoundation --enable-libass --enable-frei0r 
--enable-libfreetype --enable-libfribidi --enable-libharfbuzz 
--enable-liblensfun --enable-libvidstab --enable-libvmaf 
--enable-libzimg --enable-amf --enable-cuda-llvm --enable-cuvid 
--enable-dxva2 --enable-d3d11va --enable-d3d12va --enable-ffnvcodec 
--enable-libvpl --enable-nvdec --enable-nvenc --enable-vaapi 
--enable-libshaderc --enable-vulkan --enable-libplacebo --enable-opencl 
--enable-libcdio --enable-libgme --enable-libmodplug --enable-libopenmpt 
--enable-libopencore-amrwb --enable-libmp3lame --enable-libshine 
--enable-libtheora --enable-libtwolame --enable-libvo-amrwbenc 
--enable-libcodec2 --enable-libilbc --enable-libgsm --enable-liblc3 
--enable-libopencore-amrnb --enable-libopus --enable-libspeex 
--enable-libvorbis --enable-ladspa --enable-libbs2b --enable-libflite 
--enable-libmysofa --enable-librubberband --enable-libsoxr 
--enable-chromaprint
libavutil      59. 53.100 / 59. 53.100
libavcodec     61. 28.100 / 61. 28.100
libavformat    61.  9.102 / 61.  9.102
libavdevice    61.  4.100 / 61.  4.100
libavfilter    10.  6.101 / 10.  6.101
libswscale      8. 13.100 /  8. 13.100
libswresample   5.  4.100 /  5.  4.100
libpostproc    58.  4.100 / 58.  4.100

Please consider that I tested many ffmpeg version released in 2023 and 
2024 and they all were slow.

Regards

Giovanni

Il 09/01/2025 20:36, Carl Zwanzig ha scritto:
> On 1/9/2025 11:22 AM, Giovanni Fast1 wrote:
>> The ffmpeg.exe I use is an executable of 108.45 GB, filedate 25 Oct 
>> 2021, ant it does the job at 65-70 frames per second, pretty fast.
>>
>> But if I replace the ffmpeg.exe file with a more recent one, 
>> including the one released a few days ago (137.53 MB, filedate 30 Dec 
>> 2024), the speed goes down to 25-30 fps.
>
> Please always include the command output so we can see which 
> version/build/etc you're running- it'll start with something like this:
>
> ffmpeg version 6.1.1-full_build-www.gyan.dev Copyright (c) 2000-2023 
> the FFmpeg developers
>   built with gcc 12.2.0 (Rev10, Built by MSYS2 project)
> [...]
> (that's quite old)
>
> z!
>