venj’s gists

venj / apod.sh

Created May 10, 2012 01:59

Download NASA Astronomy Picture Of Day media. (Bash version)

	#!/bin/bash

	# Constants
	TMPDIR=/tmp/apod
	LISTFILE=$TMPDIR/list.html
	REMOTEPREFIX=http://antwrp.gsfc.nasa.gov/apod/

	# Functions
	function parse_page() {
	printf "Downloading photo page %s...\n" $1

venj / anyduplicate.rb

Created May 11, 2012 06:25

find duplicate city name for me.

	#!/usr/bin/ruby
	#encoding=utf8

	cities = {}
	open("/Users/venj/Desktop/city.txt").each_line do \|l\|
	city = l.split("=").last
	if cities[city].nil?
	cities[city] = 0
	else
	cities[city] += 1

venj / f4v_to_m4v.rb

Created May 14, 2012 05:22

Remux f4v to m4v.

	#!/usr/bin/env ruby

	Dir["*.f4v"].each do \|file\|
	name = File.basename file, ".f4v"
	system("ffmpeg -i '#{file}' -acodec copy -vcodec copy '#{name}.m4v'")
	end

venj / color.sh

Created May 14, 2012 07:25

Color in terminal

	#!/bin/bash

	# colors.sh - Print out all the different ECMA color-mod combos
	#
	# 2008 - Mike Golvach - [email protected]
	#
	# Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License
	#

	declare -a color_array

venj / remux.rb

Created May 20, 2012 06:56

The real deal remux script that can remux videos with M4V compatible video stream. Audio stream will be encoded to 192kbps aac if it is not m4v compatible audio.

	#!/usr/bin/env ruby
	# Remux MP4/H264 videos (mkv, avi, etc.) to m4v.

	TMPFILE = "/tmp/ffprobe_out.txt"
	VIDEO_CONTAINER = ["mkv", "f4v", "avi", "divx", "ts"]
	VCODECS = ["mpeg4", "h264"]
	ACODECS = ["aac"]

	if (`which ffmpeg` == "")
	puts "You need ffmpeg to use this command."

venj / preprocess.rb

Created May 21, 2012 05:38

batch convert images for appstore for my project.

	#!/usr/bin/env ruby
	require "fileutils"
	include FileUtils

	p = "processed"
	mkdir "processed" unless File.exists?(p)

	Dir["*.png"].each do \|f\|
	puts "Processing #{f}."
	name = File.basename(f).split('.')[0]

venj / calc.vb

Created May 29, 2012 00:43

old code for the lab

	Attribute VB_Name = "包合常数自动计算脚本"

	'
	' 作者: venj
	' 日期: 2007年01月06日
	' 版本: 0.2.0 Update 1
	'
	' 用途: 环糊精包合常数自动计算脚本
	'
	' ChangeLog:

venj / com.yourcompany.autossh.plist

Created May 30, 2012 14:39

Put following gist to ~/Library/LaunchAgents, and then run: launchctl load /Users/your_name/Library/LaunchAgents/com.yourcompany.autossh.plist

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>OnDemand</key>
	<false/>

	<key>KeepAlive</key>
	<true/>

venj / fix_size_image.rb

Created June 9, 2012 06:02

convert images to fixed width images

	#!/usr/bin/env ruby
	TARGET_WIDTH = 1000.0

	Dir["*.jpg"].each do \|f\|
	fileinfo = `convert #{f} -print "%wx%h" /dev/null`
	width, height = fileinfo.split("x").collect(&:to_i)

	height *= (TARGET_WIDTH / width)
	width = TARGET_WIDTH
	print "Processing #{f}..."

venj / geocode.m

Created July 5, 2012 05:42

iOS 5 Geocode question.

	/*

	用iOS 5的GeoCoder API，反向解析经纬度。代码简略如下：

	*/
	CGFloat lat = 30.0; CGFloat lng = 120.0;
	CLGeocoder *coder = [[CLGeocoder alloc] init];
	CLLocation *mapLocation = [[CLLocation alloc] initWithLatitude:lat longitude:lng];

	[coder reverseGeocodeLocation:mapLocation completionHandler:^(NSArray placemarks, NSError error) {

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