Streaming your Linux desktop to Youtube and Twitch via Nvidia's NVENC and VAAPI:
Considerations to take when live streaming:
The following best practice observations apply when using a hardware-based encoder for live streaming to any platform:
Set the buffer size (-bufsize:v) equal to the target bitrate (-b:v). You want to ensure that you're encoding in CBR mode.
Set up the encoders as shown:
| "undefined" === typeof jwplayer && (jwplayer = function() { | |
| if (jwplayer.api) | |
| return jwplayer.api.selectPlayer.apply(this, arguments) | |
| } | |
| , | |
| jwplayer.version = "6.12.4956", | |
| jwplayer.vid = document.createElement("video"), | |
| jwplayer.audio = document.createElement("audio"), | |
| jwplayer.source = document.createElement("source"), | |
| function() { |
| # This file contains the auditctl rules that are loaded | |
| # whenever the audit daemon is started via the initscripts. | |
| # The rules are simply the parameters that would be passed | |
| # to auditctl. | |
| # First rule - delete all | |
| -D | |
| # Increase the buffers to survive stress events. | |
| # Make this bigger for busy systems |
| # This script helps one to setup openvpn on a Debian 9 under OpenVZ. | |
| # It uses external openvpn-install.sh script (read it carefully! https://git.io/vpn). | |
| # Update system. | |
| apt-get update | |
| apt-get upgrade | |
| # Add new user to system. | |
| useradd -m vpn |
| #!/bin/bash | |
| ## This gist contains step by step instructions to install cuda v10.0 and cudnn 7.5 in Ubuntu 18.04 | |
| ### steps #### | |
| # verify the system has a cuda-capable gpu | |
| # download and install the nvidia cuda toolkit and cudnn | |
| # setup environmental variables | |
| # verify the installation | |
| ### |
nVidia
nvresizepatch is outdated and not more compatible to the latest version of FFmpeg, so it's not included in this documentation.
(even if I've passed a lot of time at trying to make it compile... without any success)
Please don't rely on this page: https://developer.nvidia.com/ffmpeg, the implementation is a hack and was never been added to the main FFmpeg tree.
See:
FFmpeg build for Optimus and dual-GPU (Intel+NVIDIA) systems on Ubuntu 18.04LTS:
Build platform: Ubuntu 18.04LTS
Goals: Generate an FFmpeg build that can utilize NVENC, QuickSync and VAAPI-based hardware acceleration on NVIDIA-PRIME-based systems on Ubuntu 18.04LTS+.
Ensure the platform is up to date:
sudo apt update && sudo apt -y upgrade && sudo apt -y dist-upgrade
Original guide with a standard build is here.
With this guide, I'm adding more instructions to enable support for NVIDIA CUVID and NVIDIA NPP for enhanced encode and decode performance.
Warning:
If all you require is NVENC's enablement, you do NOT need the CUDA SDK.
The nv-codec-headers (below) is ALL you require.
Build FFmpeg with Intel's QSV enablement on an Intel-based validation test-bed:
Build platform: Ubuntu 18.04LTS
Ensure the platform is up to date:
sudo apt update && sudo apt -y upgrade && sudo apt -y dist-upgrade
Install baseline dependencies first (inclusive of OpenCL headers+)