bluvertigo

Convert sequence of JPEG images to MP4 video

ffmpeg -r 24 -pattern_type glob -i '*.JPG' -s hd1080 -vcodec libx264 timelapse.mp4

• -r 24 - output frame rate
• -pattern_type glob -i '*.JPG' - all JPG files in the current directory
• -i DSC_%04d.JPG - e.g. DSC_0397.JPG
• -s hd1080 - 1920x1080 resolution

Slower, better quality

bluvertigo

Logical Operators

• && and (both are true)
• || or (at least one is true)
• ! not

AND

true && true
// true

bluvertigo

#!/bin/bash
#setup variables
     x="/share/cam" #base dir to search
     date=$(date +"%Y%m%d%H%M") #date used throughout script
     fileprefix="yt_"
     ytemail="youremail" #your youtube email account
     ytpassword="password" #your youtube password
     emailfrom="youremail(Your Name)" #your email address and from name
     emailuser="youremail" #your gmail address
     emailpassword="password" #your gmail password

bluvertigo

#!/bin/bash

# simple function to check http response code before downloading a remote file
# example usage:
# if `validate_url $url >/dev/null`; then dosomething; else echo "does not exist"; fi

function validate_url () {
  if [[ `curl -s --head "$1" | head -n 1 | grep "HTTP/[1-3].[0-9] [23].."` ]]
  then
    # 0 = true

bluvertigo

// Use Gists to store code you would like to remember later on
console.log(window); // log the "window" object to the console