Interval Video Take a number of videos of a given length at a given interval.

Introduction

This script takes a number of videos of a given length (Min, Sec) at a given interval (Min, Sec). For long intervals you should disable the Power Saving options of your camera. This can be done in the <ALT> menu. In the Miscellaneous Stuff menu item set the Disable LCD Off value to Script, so the display won't turn off while in <ALT> mode or while a script is running.

Written for: Canon A640
Also works on: Other Canon AXXX (Not tested)


Parameters (Save as "IntervalVideo.txt" file to your /CHDK/SCRIPTS/ folder)

Select Movie mode on your Canon A640.

  • Number of Videos (Default=2)
  • Video Length (Min) (Default=0)
  • Video Length (Sec) (Default=10)
  • Interval (Min) (Default=0)
  • Interval (Sec) (Default=10)
  • Initial Delay (Sec) (Default=1)

Script Code (save as "IntervalVideo.bas" to your /CHDK/SCRIPTS/ folder)

rem Johan Van Barel 07-07-2007
rem Interval-Video for Canon A640

@title Interval Video
@param a Number of Videos
@default a 2

@param b Video length (Min) 
@default b 0
@param c Video length (Sec) 
@default c 10

@param d Interval (Min)
@default d 0
@param e Interval (Sec)
@default e 10

@param f Initial Delay (Sec)
@default f 1

if a<2 then let a=2
if b<0 then let b=0
if c<0 then let c=0
if d<0 then let d=0
if e<0 then let e=0
if f<0 then let f=0

t=60000*b+1000*c
i=60000*d+1000*e

if t<1000 then let t=1000
if i<2000 then let i=2000

print "Videos:"; a
print "Total Time:", ((t*a)+(i*(a-1)))/60000; "Min", 
	((t*a)+(i*(a-1)))%60000/1000; "Sec"

sleep f*1000

print "Video 1 of", a
click "shoot_full"
click "shoot_full"
sleep t
click "shoot_full"

for s=2 to a
    print "Wait",d;"Min",e;"Sec"
    sleep i

    print "Video", s, "of", a
    click "shoot_full"
    sleep t
    click "shoot_full"
next s

end

Download and Installation

This script is freeware. Before you can install it, you need to download and install the CHDK Firmware Extension for your specific Canon camera. CHDK is freeware and can be downloaded for a broad range of Canon PowerShot and Digital Ixus cameras here. If you own a Canon A640, you can download a specific build here, which already contains all the CHDK scripts from this site, including the one mentioned above. Copy all the files in this archive to the root of your SD card. If you have problems installing CHDK, please refer to the CHDK Wiki Pages.


Disclaimer

This software and the accompanying files are supplied "as is", without any express or implied warranty. In no event shall the author be liable for any damages whatsoever including direct, indirect, incidental, consequential, loss of business profits or special damages from the use of this software. By using this software you agree with these conditions.

Copyright © 2007 by Johan Van Barel. All Rights Reserved