schacon

This is gist. 
There are many like it, but this one is mine. 
It is my life. 
I must master it as I must master my life. 
Without me gist is useless. 
Without gist, I am useless.

ghedo

/*
 * Simple sound playback using ALSA API and libasound.
 *
 * Compile:
 * $ cc -o play sound_playback.c -lasound
 * 
 * Usage:
 * $ ./play <sample_rate> <channels> <seconds> < <file>
 * 
 * Examples:

daniel-j-h

# Instrument binaries, pgo data to /data/pgo, serial make is important to not confuse the pgo generator
env CXXFLAGS='-march=native -fprofile-dir=/data/pgo -fprofile-generate=/data/pgo' cmake .. -DCMAKE_BUILD_TYPE=Release                   
make -j 1

# Run instrumented program, generate and write pgo data
./runIt

# Use profile data and feed into gcc, correct for threading counter noise, serial make is important to not confuse the pgo generator
env CXXFLAGS='-march=native -fprofile-dir=/data/pgo -fprofile-use=/data/pgo -fprofile-correction' cmake .. -DCMAKE_BUILD_TYPE=Release                   
make -j 1

lopspower

All Android Directory Path

1) System directories

⚠️ We can't write to these folers

Method	Result

Brainiarc7

Useful Examples of ffmpeg and GNU parallel on the command-line:

Transcoding FLAC music to Opus:

ffmpeg is a highly useful application for converting music and videos. However, audio transcoding is limited to a a single core. If you have a large FLAC archive and you wanted to compress it into the efficient Opus codec, it would take forever with the fastest processor to complete, unless you were to take advantage of all cores in your CPU.

parallel 'ffmpeg -v 0 -i "{}" -c:a libopus -b:a 128k "{.}.opus"' ::: $(find -type f -name '*.flac')

Transcoding Videos to VP9:

MaxXor

Encrypted Btrfs storage setup and maintenance guide

Initial setup with LUKS/dm-crypt

This exemplary initial setup uses two devices /dev/sdb and /dev/sdc but can be applied to any amount of devices by following the steps with additional devices.

Create keyfile:

dd bs=64 count=1 if=/dev/urandom of=/etc/cryptkey iflag=fullblock
chmod 600 /etc/cryptkey

HFTrader

Installing packages

Note that packages often have a series of optdepends - optional dependencies - which are packages that provide additional functionality to the application, albeit not strictly required for running it. When installing a package, pacman will list its optional dependencies among the output messages, but they will not be found in pacman.log: use the pacman -Si (see Querying package databases) command to view the optional dependencies of a package, together with short descriptions of their functionality.

⚠️ Partial upgrades are not supported 69

Installing specific packages

To install a single package or list of packages (including dependencies), issue the following command:

ryuheechul

An attempt to make Windows 10/11 work for me by customizing/personalizing it

Why gist not dotfiles?

I use dotfiles to personalize *nix type of machines. But I'm new to personalizing Windows 10. So I'm collecting information here first before adding these to the dotfiles. I'm not sure if these will ever move to dotfiles though.

Enable WSL2

pmarreck

# return code is either 0 (success) or 1 (fail), so you can use it straight-up in logical statements
coinflip() { return $(($RANDOM%2)); }

coinflip && echo "heads" || echo "tails"

BlueSwordM

Hello. I've decided to share a lot more of my knowledge in public forums from now on, and to not divert any of my focus away from improving the world in a way that stays written in history.

This Gist is about discussing on how to improve AV1 decoding performance on 2 fronts: improving performance through more efficient decoding, and through decoding aware encoding.

Improving decoding performance through more efficient decoding.

Here are many tips on how to improve decoding performance on any machine:

1. Keep your favorite media player up to date!