This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.
To capture the video (filesize: 19MB), using the free "QuickTime Player" application:
This installs a patched ruby 1.9.3-p327 with various performance improvements and a backported COW-friendly GC, all courtesy of funny-falcon.
You will also need a C Compiler. If you're on Linux, you probably already have one or know how to install one. On OS X, you should install XCode, and brew install autoconf
using homebrew.
I largely followed Florin's blog post, but have a few notes to add regarding issues I encountered:
gpg-agent
only automatically starts when gpg is used; for ssh, you'll need to ensure it's running.list
command inside gpg --edit-card
, look for the Key attributes
line to see what is currently selected. On my YubiKey 4, it defaulted to 2048 bits for all keys:Key attributes ...: rsa2048 rsa2048 rsa2048
#!/usr/bin/env bash | |
sudo yum groups install -y Development\ tools | |
sudo yum install -y cmake | |
sudo yum install -y python34-{devel,pip} | |
sudo pip-3.4 install neovim --upgrade | |
( | |
cd "$(mktemp -d)" | |
git clone https://github.com/neovim/neovim.git | |
cd neovim | |
make CMAKE_BUILD_TYPE=Release |
sysctl -w fs.file-max=12000500
sysctl -w fs.nr_open=20000500
# Set the maximum number of open file descriptors
ulimit -n 20000000
# Set the memory size for TCP with minimum, default and maximum thresholds
sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'
# in /etc/systemd/system | |
[Unit] | |
Description=Bluetooth Agent | |
[Service] | |
ExecStart=/usr/bin/bt-agent -c NoInputNoOutput | |
Type=simple | |
[Install] | |
WantedBy=multi-user.target |
以下は、AVCDecoderConfigurationRecord のバイトデータです。
ADDR 0 1 2 3 4 5 6 7 8 9 A B C D E F
------ -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
000000 00 00 00 2e 61 76 63 43 01 42 c0 1e ff e1 00 16
000010 67 42 c0 1e d9 02 04 68 40 00 00 03 01 40 00 00
000020 03 00 83 c5 8b 92 01 00 05 68 cb 83 cb 20
go run /usr/local/share/llhlstools/ll-hls-origin-example.go -dir /Library/WebServer/Documents -http :8000