| package main | |
| import ( | |
| "io" | |
| "log" | |
| "os" | |
| "os/exec" | |
| "io/ioutil" | |
| "bytes" | |
| ) |
Simple way to setup an arm chroot for building packages for your arm devices. This is an alternative to cross-compiling where you are limited to only linking against the libs in your toolchain.
You can store the chroot wherever you like. I choose to store it in a disk-image which I mount to my filesystem.
Grab ffmpeg from https://www.ffmpeg.org/download.html
It's a command line tool which means you will have to type things with your keyboard instead of clicking on buttons.
The most trivial operation would be converting gifs:
ffmpeg -i your_gif.gif -c:v libvpx -crf 12 -b:v 500K output.webm
-crf values can go from 4 to 63. Lower values mean better quality.-b:v is the maximum allowed bitrate. Higher means better quality.
| # encoding: utf-8 | |
| require "timeout" | |
| # Capture the standard output and the standard error of a command. | |
| # Almost same as Open3.capture3 method except for timeout handling and return value. | |
| # See Open3.capture3. | |
| # | |
| # result = capture3_with_timeout([env,] cmd... [, opts]) | |
| # |
| package main | |
| import ( | |
| "net/http" | |
| ) | |
| type SingleHost struct { | |
| handler http.Handler | |
| allowedHost string | |
| } |
TCL-Expect scripts are an amazingly easy way to script out laborious tasks in the shell when you need to be interactive with the console. Think of them as a "macro" or way to programmaticly step through a process you would run by hand. They are similar to shell scripts but utilize the .tcl extension and a different #! call.
The first step, similar to writing a bash script, is to tell the script what it's executing under. For expect we use the following:
#!/usr/bin/expect
| #1: Download do kernel | |
| #Faça o download do site oficial do kernel | |
| wget -c http://www.kernel.org/pub/linux/kernel/v2.6/linux-2.6.31.tar.bz2 | |
| #2: Instalar pacotes necessários para compilação: | |
| #Se precisar de mais um pacote instale. Mas acredito que sejam apenas esses dai mesmo. | |
| pacman -S gcc make libtools patch | |
| #3: Descompactar o kernel | |
| #A pasta preferencial é a /usr/src mas vc pode descompactar em outra pasta qualquer |
| #!/bin/sh | |
| # I put all my dev stuff in here | |
| export DEV_PREFIX=$HOME/Dev/ | |
| # Don't forget to adjust this to your NDK path | |
| export ANDROID_NDK=${DEV_PREFIX}/android-ndk-r8d/ | |
| export CROSS_COMPILE=arm-linux-androideabi |
