Howto Compile ffmpeg 6 With av1_nvenc And Use It In Debian 13 (trixie/testing)
To encode AV1 video on a regular CPU is extremely time consuming, 30s takes like 2 hours, maybe more on Ryzen 5900X. Therefore I want to use AV1 encoder in my nVidia RTX 4800. That was one of reason why I paid eye watering amount (and to try AI images and play games in 4k).
I did a bad job to document everything, sorry if there are mistakes, but the plan is - to compile https://www.ffmpeg.org/ with av1_nvenc support. This requires:
Install Cuda
Cuda is needed to compile AV1 support.
- the current version of CUDA in Debian non-free/contrib is 12.0.1-1, but at least 12.1 is required (https://tracker.debian.org/pkg/nvidia-cuda-toolkit) - still you can install it first with
apt-get install nvidia-cuda-toolkit - I heard there is av1_nvenc support in ffmpeg from deb multimedia, but dunno, didn’t try
- so we will just download a big deb file from nVidia - https://developer.nvidia.com/cuda-downloads?target_os=Linux&target_arch=x86_64&Distribution=Debian&target_version=11&target_type=deb_local and then install it. Try not to install through
.runfile, better to have a package. - there is another installation guide for CUDA - https://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html
Their instructions:
wget https://developer.download.nvidia.com/compute/cuda/12.2.1/local_installers/cuda-repo-debian11-12-2-local_12.2.1-535.86.10-1_amd64.deb
sudo dpkg -i cuda-repo-debian11-12-2-local_12.2.1-535.86.10-1_amd64.deb
sudo cp /var/cuda-repo-debian11-12-2-local/cuda-*-keyring.gpg /usr/share/keyrings/
sudo add-apt-repository contrib
sudo apt-get update
sudo apt-get -y install cuda
Run nvidia-smi to find out CUDA version detected by nVidia driver (also useful to see the power consumption):
nvidia-smi
Fri Aug 11 00:26:21 2023
+---------------------------------------------------------------------------------------+
| NVIDIA-SMI 535.54.03 Driver Version: 535.54.03 CUDA Version: 12.2 |
|-----------------------------------------+----------------------+----------------------+
| GPU Name Persistence-M | Bus-Id Disp.A | Volatile Uncorr. ECC |
| Fan Temp Perf Pwr:Usage/Cap | Memory-Usage | GPU-Util Compute M. |
| | | MIG M. |
|=========================================+======================+======================|
| 0 NVIDIA GeForce RTX 4080 On | 00000000:09:00.0 On | N/A |
| 0% 52C P0 16W / 320W | 1185MiB / 16376MiB | 25% Default |
| | | N/A |
+-----------------------------------------+----------------------+----------------------+
+---------------------------------------------------------------------------------------+
| Processes: |
| GPU GI CI PID Type Process name GPU Memory |
| ID ID Usage |
|=======================================================================================|
| 0 N/A N/A 26487 G /usr/lib/xorg/Xorg 546MiB |
| 0 N/A N/A 26919 G /usr/bin/kwalletd5 4MiB |
| 0 N/A N/A 27155 G /usr/bin/ksmserver 4MiB |
| 0 N/A N/A 27157 G /usr/bin/kded5 4MiB |
| 0 N/A N/A 27160 G /usr/bin/kwin_x11 119MiB |
| 0 N/A N/A 27190 G /usr/bin/plasmashell 26MiB |
| 0 N/A N/A 27222 G ...c/polkit-kde-authentication-agent-1 4MiB |
| 0 N/A N/A 27437 G /usr/bin/nextcloud 21MiB |
| 0 N/A N/A 27446 G ...86_64-linux-gnu/libexec/kdeconnectd 4MiB |
| 0 N/A N/A 27466 G /usr/bin/kaccess 4MiB |
| 0 N/A N/A 27471 G ...-linux-gnu/libexec/DiscoverNotifier 4MiB |
| 0 N/A N/A 27583 G /usr/bin/konsole 4MiB |
| 0 N/A N/A 27600 G /usr/bin/dolphin 4MiB |
| 0 N/A N/A 27757 G /home/aaa/Stiahnuté/firefox/firefox 316MiB |
| 0 N/A N/A 27831 G ...-gnu/libexec/xdg-desktop-portal-kde 4MiB |
| 0 N/A N/A 28287 G /usr/bin/krunner 15MiB |
| 0 N/A N/A 28354 G ...86_64-linux-gnu/libexec/baloorunner 4MiB |
| 0 N/A N/A 31514 G /usr/bin/ghostwriter 19MiB |
+---------------------------------------------------------------------------------------+
OpenCL (?)
If I remember correctly also OpenCL should be installed, at least headers:
apt-get install nvidia-opencl-dev nvidia-opencl-icd nvidia-opencl-common
Compile ffmpeg
Clone the source code repository, switch to stable version 6, configure and compile. Not going to install it. You should also have development files for stuff like opus.
git clone https://git.ffmpeg.org/ffmpeg.git
cd ffmpeg
git co release/6.0
./configure --enable-nonfree --enable-cuda-nvcc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
make -j 22
You can see an error with message Undefined subroutine &Texinfo::Config::set_from_init_file called at, but it is enough to run make again. It will create ffmpeg binary anyways.
Check if nvenc support has been compiled properly:
./ffmpeg -encoders | grep av1
ffmpeg version n6.0-31-g1ebb0e43f9 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 12 (Debian 12.3.0-5)
configuration: --enable-nonfree --enable-cuda-nvcc --enable-libnpp --extra-cflags=-I/usr/local/cuda/include --extra-ldflags=-L/usr/local/cuda/lib64
libavutil 58. 2.100 / 58. 2.100
libavcodec 60. 3.100 / 60. 3.100
libavformat 60. 3.100 / 60. 3.100
libavdevice 60. 1.100 / 60. 1.100
libavfilter 9. 3.100 / 9. 3.100
libswscale 7. 1.100 / 7. 1.100
libswresample 4. 10.100 / 4. 10.100
V....D av1_nvenc NVIDIA NVENC av1 encoder (codec av1)
A....D wmav1 Windows Media Audio 1
The system ffmpeg use libaom-av1 to encode AV1:
ffmpeg -encoders | grep av1
ffmpeg version 6.0-5 Copyright (c) 2000-2023 the FFmpeg developers
built with gcc 13 (Debian 13.2.0-1)
configuration: --prefix=/usr --extra-version=5 --toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --enable-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libglslang --enable-libgme --enable-libgsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --enable-libopus --enable-libpulse --enable-librabbitmq --enable-librist --enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libsvtav1 --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzimg --enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --disable-sndio --enable-libjxl --enable-pocketsphinx --enable-librsvg --enable-libvpl --disable-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r --enable-libx264 --enable-libplacebo --enable-librav1e --enable-shared
libavutil 58. 2.100 / 58. 2.100
libavcodec 60. 3.100 / 60. 3.100
libavformat 60. 3.100 / 60. 3.100
libavdevice 60. 1.100 / 60. 1.100
libavfilter 9. 3.100 / 9. 3.100
libswscale 7. 1.100 / 7. 1.100
libswresample 4. 10.100 / 4. 10.100
libpostproc 57. 1.100 / 57. 1.100
V....D libaom-av1 libaom AV1 (codec av1)
V....D librav1e librav1e AV1 (codec av1)
V..... libsvtav1 SVT-AV1(Scalable Video Technology for AV1) encoder (codec av1)
V....D av1_nvenc NVIDIA NVENC av1 encoder (codec av1)
V..... av1_qsv AV1 (Intel Quick Sync Video acceleration) (codec av1)
A....D wmav1 Windows Media Audio 1
Encode
The options for nvenc AV1 are a bit different and I haven’t time to read through all properly. The classic constant factor from x264, x265 and libaom AV1 -crf xx is not there.
This will encode the file to AV1 with nvidia encoder and use Opus audio codec and Matroska container, -ss is starting position in video file, -t ending position (to cut), -vf to downscale to fullHD from 4k using graphics card. The order of arguments are important.
./ffmpeg -hwaccel cuda -hwaccel_output_format cuda -ss 00:00:06.00 -accurate_seek -t 01:30:50.00 -i '/home/damon/video.mp4' -c:v av1_nvenc -vf scale_npp=1920:1080,fps=30 -c:a opus -b:a 128k -compression_level 10 -channels 2 -f matroska -strict -2 videoav1.mkv
And that’s it. Maybe one day I will write an article about options, but be sure to read this - https://docs.nvidia.com/video-technologies/video-codec-sdk/12.1/ffmpeg-with-nvidia-gpu/index.html. The documentation is written very well. I am really impressed.
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