________________________________Make a Timelapse Movie___________________________________________________________


Step 1: 

// First make a directory using the "mkdir" command (here called blabla). 
// Get into it using "cd" command.
// Do all other steps (commands) in this directory--not anywhere else.


>> mkdir  blabla

>> cd blabla


Step 2:

// Take several photos with the same time interval (tl) for a lengh of time (t).
// Use the "raspistill" command, and wait the amount of time (t, in milliseconds) you chose.
// Be carefull to do not fill the drive (SD card) with too many pictures as it will crash the system.
// Make sure the table with your HomeScope is not disturbed with vibrations
// For example, for taking pictures every 10 minutes (600000 milliseconds) for a 2 hour (7200000 ms) period
// naming each picture "PictureN.jpg" where N={0000,...0013),
// we use (and take 14 pictures 0-13):

>> raspistill -t 7200000 -tl 600000 -o Picture%04d.jpg


Step 3:

// Make a text file called "photos.txt" listing all the pictures files in the directory using the command 
// "ls" and redirection operator ">"


>> ls *.jpg > photos.txt



Step 4:

// Build the final movie stiching all frames together with the command "mencoder" as follows


>> mencoder "mf://@photos.txt" -mf fps=1 -o timelapse_video.avi -ovc lavc -lavcopts vcodec=mjpeg:vbitrate=1600 vqmin=3




_________________________________Play the movie________________________________________________________________

Step 5:

// Play the avi file movie using the "mplayer" command


>> mplayer timelapse_video.avi -fs