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This patch removes restriction on maximum number of simultaneous NVENC video encoding sessions imposed by Nvidia to consumer-grade GPUs.
FFMPEG-with-NVIDIA-Acceleration-on-Ubuntu_UG_v01.pdf | ||
patch.sh | ||
README.md |
nvidia-patch
Requirements:
- ubuntu (< 18.04 for 375.39 nvidia driver or kernel < 4.15)
- nvenc-compatible gpu (https://developer.nvidia.com/video-encode-decode-gpu-support-matrix#Encoder)
- nvidia driver (patch availible for 375.39 or 396.24)
Tested on Ubuntu 18.04 LTS (GNU/Linux 4.15.0-23-generic x86_64)
step-by-step :
Download driver
http://us.download.nvidia.com/XFree86/Linux-x86_64/375.39/NVIDIA-Linux-x86_64-375.39.run http://us.download.nvidia.com/XFree86/Linux-x86_64/396.24/NVIDIA-Linux-x86_64-396.24.run
Install driver 396.24
mkdir /opt/nvidia && cd /opt/nvidia
wget http://us.download.nvidia.com/XFree86/Linux-x86_64/396.24/NVIDIA-Linux-x86_64-396.24.run
chmod +x ./NVIDIA-Linux-x86_64-396.24.run
./NVIDIA-Linux-x86_64-396.24.run
Check driver
nvidia-smi
Patch libnvidia-encode.so (with backup)
bash ./patch.sh
Silent patch libnvidia-encode.so
bash ./patch.sh -s
Rollback libnvidia-encode.so (restore from backup)
bash ./patch.sh -r
See also
If you experience CreateBitstreamBuffer failed: out of memory (10)
, then you have to lower buffers number used for every encoding session. If you are using ffmpeg
, consider using this patch.