CarLapse - LUA Script for timelapse out of a driving car - Completed and Working Scripts - CHDK Forum supplierdeeply
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CarLapse - LUA Script for timelapse out of a driving car

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Offline careyer

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CarLapse - LUA Script for timelapse out of a driving car
« on: 13 / November / 2008, 12:18:39 »
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Hi folks,

Based uppon the "Night-time time-lapse" script (which did unfortunalty not work on cameras not offering a dedicated 'M'-Mode) I designed a time-lapse skript which is especially designed to produce time-lapse movies out of a driving car. (no 'M'-Mode enabled camera is needed) For this purpose some requirements have to be met:

 a) fast intervall (about 1 frame/sec)
 b) new EV metering for each frame (sunlight & shadow change frequently on the road)
 c) keep shutterspeeds fast (auto increase ISO if needed)

E'Viola... the script below meets all those requiements, since you can:

 1) Specify delay between frames
 2) Specify Default ISO
 3) Specify Highest Allowed ISO
 4) Specify if you want to enable AutoISO Shift

EV metering and ISO-shift is done for each frame! To get maximum speed disable the picture review of your camera!
Have fun...

P.S.: 'fb-lib' is needed. You get it if you download the "Night-time time-lapse" script
Code: [Select]
--[[
@title CarLapseV2
-- Author: careyer
@param a Frame delay (sec)
@default a 0

@param b Max. TV (1/sec)
@default b 125

@param c Default ISO (*100)
@default c 1

@param d Maximum ISO (*100)
@default d 8

@param e Loop X times (0=endless)
@default e 0

@param f AutoISO (0=No,1=Yes)
@default f 1

@param r Focus to Inf.(0=no, 1=yes)
@default r 0

@param s JPG Q:-1..2=off,best..norm
@default s -1

@param t JPG resol.(-1=off,see doc)
@default t -1

@param u Startup Delay (minutes)
@default u 0
]]

require "fb-lib"
propcase=require("propcase")

-- verbose=1 gives more printout during shoot
verbose=0

min_delay=check_range(a,0,10000)
max_tv=sec_to_tv96(check_range(b,1,65))
default_sv=ISO_to_sv96(check_range(c,0,21)*100)
max_sv=ISO_to_sv96(check_range(d,0,21)*100)
maxISO = d*100

maxISO_96 = 419
if maxISO == 100 then
  maxISO_96 = 419
elseif maxISO == 200 then
  maxIS0_96 = 507
elseif maxISO == 400 then
  maxISO_96 = 603
elseif maxISO == 800 then
  maxISO_96 = 699
elseif maxISO == 1600 then
  maxISO_96 = 795
end

-- select focus distance (user specified if parameter r<=0, infinity otherwise):
if r>0 then subjdist=65535
  else subjdist=get_focus()
end

-- jpg quality -1=do not change, 0=super fine, 1=fine, 2=normal,
jpg_quality=check_range(s, -1, 2)
if jpg_quality>-1 then
  set_prop(propcase.QUALITY, jpg_quality)
end

-- jpg resolution -1=do not change, others are whatever they are in your camera:
-- For a570is Digic III: 0,1,2,3,4,6,8 = L,M1,M2,M3,S,Postcard,W
-- For s3is   Digic  II: 0,1,2,  4,  8 = L,M1,M2,   S,         W
-- We can probably assume those numbers are always the same, but availability may vary.
jpg_resolution=check_range(t, -1, 8)
if jpg_resolution>-1 then
  set_prop(propcase.RESOLUTION, jpg_resolution)
end

startupdelay=check_range(u, 0, 65535)

-- startup delay if requested
if startupdelay>0 then
  for remaining=startupdelay,1,-1 do
    print("Sleeping ", remaining, " minutes")
    sleep(29980)
    sleep(29990)
  end
end

-- enable shot histogram
shot_histo_enable(1)

-- start counting frames
count_frames=1

-- store script start time and disk space at the beginning:
starttick=get_tick_count()
startdiskspace=get_free_disk_space()

-- next_shoot keeps the time (in get_tick_count units) when next shot should be taken.
-- initialise next_shoot to "shoot now"
next_shoot=0

-- force manual focus (does this work?)
set_prop(propcase.FOCUS_MODE,1)
-- disable IS (dunno if this works either)
set_prop(propcase.IS_MODE,3)
-- use widest available aperture (I'm assuming that cameras that don't have an aperture won't respond to this in any way)
set_prop(propcase.USER_AV,get_prop(propcase.MIN_AV))
-- disable flash
set_prop(propcase.FLASH_MODE,2)


 
-- main loop. the program loops forever unless you interrupt it
loopcounter=0
repeat
  loopcounter = loopcounter+1
  -- now wait for the time to do next shot
  repeat
    sleep(1)
    tick=get_tick_count() 
  until tick>=next_shoot   
 
  -- Shoot: Half press and wait until camera is ready
  press("shoot_half")
  repeat
    sleep(1)
  until get_shooting() == true
  -- get metered day exposure
  bv=get_bv96()
  av=get_av96()
  tv=get_tv96()

  -- Check if shutterspeed is slower than allowed value
  maxTvAllowed = ((1000/b)-1)*96

  shoot_sv = default_sv
  difference = 0
  differenceFactor = 0
  isoString = 100
  if tv<maxTvAllowed then
    difference = maxTvAllowed - tv
    differenceFactor = difference/96
    if differenceFactor == 1     then
      isoString = 200
    elseif differenceFactor == 2 then
      isoString = 400
    elseif differenceFactor == 3 then
      isoString = 800
    elseif differenceFactor >= 4 then
      isoString = 1600
    end
  else
   isoString = 100
  end

  -- make sure maxISO gets not exeeded
  calculatedISO = default_sv+(96*differenceFactor)
  if f==1 then
    if calculatedISO<=maxISO_96 then
      shoot_sv = calculatedISO
    else
      shoot_sv = maxISO_96
isoString = maxISO
    end
  end

  -- sv for this shot,
  set_prop(propcase.SV,shoot_sv)
  -- focus to Inf and finally press and release shutter.
  set_focus(subjdist)
  press("shoot_full")
  release("shoot_full")
  release("shoot_half")
  -- wait for shooting to finish
  repeat
    sleep(1)
  until get_shooting() ~= true         

  -- print out remaining disk space estimates in terms of frames and time:
  print(count_frames .. " at ISO " .. isoString)
   
  count_frames=count_frames+1
 
  -- we are now ready to shoot, calculate the next shot time
  next_shoot=tick + min_delay*1000

  -- return to top, where we will wait to shoot

  if (e == loopcounter) then
    break
  end
until 1==2

« Last Edit: 13 / November / 2008, 12:30:36 by careyer »
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Offline careyer

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Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #1 on: 16 / November / 2008, 15:45:23 »
Hello folks...

i realized that the auto-iso adjustment within CarLapseV2 did not work correctly. I fixed the problem by doing it in a more sophisticated and nicer way in CarLapseV3 now and I added some new features:

 - you may pause the script now with the "DISP" button and resume it with the "MENU" button.
   (keep the "DISP"-button pressed until script pauses). This feature is particulary nice when waiting e.g. at a traffic light
   Helps saving storage ;-)

 - You may specify a delay until the script starts. (in seconds)

Here's the new code:

Code: [Select]
--[[
@title CarLapseV3
-- Author: careyer
@param a Frame delay (sec)
@default a 0

@param b Max. TV (1/sec)
@default b 125

@param c Default ISO (*100)
@default c 1

@param d Maximum ISO (*100)
@default d 16

@param e Loop X times (0=endless)
@default e 0

@param f AutoISO (0=No,1=Yes)
@default f 1

@param r Focus to Inf.(0=no, 1=yes)
@default r 1

@param s JPG Q:-1..2=off,best..norm
@default s -1

@param t JPG resol.(-1=off,see doc)
@default t -1

@param u Startup Delay (minutes)
@default u 0

@param g Startup Delay (seconds)
@default g 2

]]

-- Converting thresholdTV to TV96 representation
-- rounding to next faster shutterspeed if needed
thresholdTV = b
thresholdTV96 = 0

if thresholdTV == 2 then
thresholdTV96 = 96
elseif thresholdTV == 3 then
  thresholdTV96 = 160
elseif thresholdTV == 4 then
  thresholdTV96 = 192
elseif thresholdTV == 5 then
  thresholdTV96 = 224
elseif thresholdTV == 6 then
  thresholdTV96 = 256
elseif thresholdTV >= 7 and thresholdTV <=8 then
  thresholdTV96 = 288
elseif thresholdTV >= 9 and thresholdTV <=10 then
  thresholdTV96 = 320
elseif thresholdTV >= 11 and thresholdTV <=13 then
  thresholdTV96 = 352
elseif thresholdTV >= 14 and thresholdTV <=15 then
  thresholdTV96 = 384
elseif thresholdTV >= 16 and thresholdTV <=20 then
  thresholdTV96 = 416
elseif thresholdTV >= 21 and thresholdTV <=25 then
  thresholdTV96 = 448
elseif thresholdTV >= 26 and thresholdTV <=30 then
  thresholdTV96 = 480
elseif thresholdTV >= 31 and thresholdTV <=40 then
  thresholdTV96 = 512
elseif thresholdTV >= 41 and thresholdTV <=50 then
  thresholdTV96 = 544
elseif thresholdTV >= 51 and thresholdTV <=60 then
  thresholdTV96 = 576
elseif thresholdTV >= 61 and thresholdTV <=80 then
  thresholdTV96 = 608
elseif thresholdTV >= 81 and thresholdTV <=100 then
  thresholdTV96 = 640
elseif thresholdTV >= 101 and thresholdTV <=125 then
  thresholdTV96 = 672
elseif thresholdTV >= 126 and thresholdTV <=160 then
  thresholdTV96 = 704
elseif thresholdTV >= 161 and thresholdTV <=200 then
  thresholdTV96 = 736
elseif thresholdTV >= 201 and thresholdTV <=250 then
  thresholdTV96 = 768
elseif thresholdTV >= 251 and thresholdTV <=320 then
  thresholdTV96 = 800
elseif thresholdTV >= 321 and thresholdTV <=400 then
  thresholdTV96 = 832
elseif thresholdTV >= 401 and thresholdTV <=500 then
  thresholdTV96 = 864
elseif thresholdTV >= 501 and thresholdTV <=640 then
  thresholdTV96 = 896
elseif thresholdTV >= 641 and thresholdTV <=800 then
  thresholdTV96 = 928
elseif thresholdTV >= 801 and thresholdTV <=1000 then
  thresholdTV96 = 960
elseif thresholdTV >= 1001 and thresholdTV <=1250 then
  thresholdTV96 = 992
elseif thresholdTV >= 1251 and thresholdTV <=1600 then
  thresholdTV96 = 1021
elseif thresholdTV >= 1601 and thresholdTV <=2000 then
  thresholdTV96 = 1053
end
 
require "fb-lib"
propcase=require("propcase")

-- verbose=1 gives more printout during shoot
verbose=0

min_delay=check_range(a,0,10000)
max_tv=sec_to_tv96(check_range(b,1,65))
default_sv=ISO_to_sv96(check_range(c,0,21)*100)
max_sv=ISO_to_sv96(check_range(d,0,21)*100)
maxISO = d*100

-- select focus distance (user specified if parameter r<=0, infinity otherwise):
if r>0 then subjdist=65535
  else subjdist=get_focus()
end



-- jpg quality -1=do not change, 0=super fine, 1=fine, 2=normal,
jpg_quality=check_range(s, -1, 2)
if jpg_quality>-1 then
  set_prop(propcase.QUALITY, jpg_quality)
end

-- jpg resolution -1=do not change, others are whatever they are in your camera:
-- For a570is Digic III: 0,1,2,3,4,6,8 = L,M1,M2,M3,S,Postcard,W
-- For s3is   Digic  II: 0,1,2,  4,  8 = L,M1,M2,   S,         W
-- We can probably assume those numbers are always the same, but availability may vary.
jpg_resolution=check_range(t, -1, 8)
if jpg_resolution>-1 then
  set_prop(propcase.RESOLUTION, jpg_resolution)
end

startupdelay=check_range(u, 0, 65535)
startupdelaySec = g

-- startup delay if requested
if startupdelay>0 then
  for remaining=startupdelay,1,-1 do
    print("Sleeping ", remaining, " minutes")
    sleep(29980)
    sleep(29990)
  end
end

if startupdelaySec>0 then
  for remaining=startupdelaySec,1,-1 do
    print("Sleeping ", remaining, " seconds")
    sleep(1000)   
  end
end




-- enable shot histogram
shot_histo_enable(1)

-- start counting frames
count_frames=1

-- store script start time and disk space at the beginning:
starttick=get_tick_count()
startdiskspace=get_free_disk_space()

-- next_shoot keeps the time (in get_tick_count units) when next shot should be taken.
-- initialise next_shoot to "shoot now"
next_shoot=0
 
-- force manual focus (does this work?)
set_prop(propcase.FOCUS_MODE,1)
-- disable IS (dunno if this works either)
set_prop(propcase.IS_MODE,3)
-- use widest available aperture (I'm assuming that cameras that don't have an aperture won't respond to this in any way)
set_prop(propcase.USER_AV,get_prop(propcase.MIN_AV))
-- disable flash
set_prop(propcase.FLASH_MODE,2)

 
-- main loop. the program loops forever unless you interrupt it
loopcounter=0
repeat 
  wait_click(100)
  if is_pressed "display" then
    print("Paused by user")
    repeat
    wait_click(100)
    until is_pressed "menu"
    print("Continued by user")
  end
 
  loopcounter = loopcounter+1
  -- now wait for the time to do next shot
  repeat
    sleep(1)
    tick=get_tick_count() 
  until tick>=next_shoot   
 
  -- Reset ISO to default value (ISO 100)
  sv96ISO = 419
  set_sv96(sv96ISO)
 
  -- Measuring TV at default ISO
  press("shoot_half")
  repeat
    sleep(1)
  until get_shooting() == true
  -- get metered day exposure
  bv=get_bv96()
  av=get_av96()
  tv=get_tv96()
  set_focus(subjdist)
  release("shoot_half") 

  -- Check if TV slower than allowed value and raise ISO if needed 
  shoot_sv = default_sv
  difference = 0
  differenceFactor = 0
  sv96ISO = 419
  isoString = 100
 
  difference = thresholdTV96 - tv
  differenceFactor    = difference/96
  differenceRemainder = difference-(differenceFactor*96)
   
  -- Raising ISO and adjusting TV if needed
  while difference>0 and isoString<maxISO do
    difference = difference-96
    isoString = isoString*2
    sv96ISO = sv96ISO+96
    tv=tv+96
  end
 
  -- correcting TV value to match closest TV96 value
  count = 0
  while tv>32 do
   count = count+1
   tv=tv-32
  end
  tvremainder = tv
  if tvremainder >=16 then
  tv = (count*32)+32
  else
    tv = count*32
  end
 

  -- set ISO and TV for next shot,
  set_sv96(sv96ISO)
  set_tv96(tv)   
   
  press("shoot_half")
  repeat
    sleep(1)
  until get_shooting() == true
  set_focus(subjdist)
   
  press("shoot_full")
  release("shoot_full")
  release("shoot_half")
  -- wait for shooting to finish
  repeat
    sleep(1)
  until get_shooting() ~= true
 
       

  -- print out remaining disk space estimates in terms of frames and time:
  print(count_frames .." ISO " .. isoString )
   
  count_frames=count_frames+1
 
  -- we are now ready to shoot, calculate the next shot time
  next_shoot=tick + min_delay*1000

  -- return to top, where we will wait to shoot

  if (e == loopcounter) then
    break
  end
until 1==2

BTW:
I'm desperatly searching for a way to disable the auto-focus so that the camera does not focus on each "half-press" command. Focusing on each picture may damage the focusing system on long timelapse sessions. Even if you set your camera to infinity-focus you will hear that it makes those typical focusing sounds coming from the lens.

On my IXUS 70 i noticed the following:
If I force the camera to MF-Mode by "set_prop(propcase.FOCUS_MODE,1)" and setting "set_focus(65535)" it will do
those sounds on each pic... means it refocuses to infinity for each picture. .. BUT... when I stop the script and turn my camera to review Mode and back to photo Mode and run the script again... it will do no focusing any more... meaning that you can't hear anything from the lens. It just triggers the picture.

Is there a way to force the camera showing this behavior right from the start without the dirty trick to change to review mode and back again to photomode?

Any help is welcome!
Cheers

careyer
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Offline fvdk

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  • Ixus 70 1.01b / 1.02a & Powershot A590is 1.01b
    • My Flickr photo page
Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #2 on: 16 / November / 2008, 19:26:39 »
Maybe a dumb question, but why not use the AFL (Auto Focus Lock) of the camera ?
This is a standard function on the IXUS 70 model.
I don't have the camera at hand but i think it is "half press + left"

Frans
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Offline fe50

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  • IXUS50 & 860, SX10 Star WARs-Star RAWs
    • fe50
Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #3 on: 16 / November / 2008, 19:37:48 »
Quote from: fvdk on 16 / November / 2008, 19:26:39
Maybe a dumb question, but why not use the AFL (Auto Focus Lock) of the camera ?
This is a standard function on the IXUS 70 model.
I don't have the camera at hand but i think it is "half press + left"

Yep, see also Disable focusing......
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Offline careyer

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  • 19
Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #4 on: 16 / November / 2008, 23:57:42 »
Thanks guys! Setting the AFL in CarLapseV4 now! - Script working nice and fast now :-)

Code: [Select]
--[[
@title CarLapseV4
-- Author: careyer
@param a Frame delay (sec)
@default a 0

@param b Max. TV (1/sec)
@default b 125

@param c Default ISO (*100)
@default c 1

@param d Maximum ISO (*100)
@default d 16

@param e Loop X times (0=endless)
@default e 0

@param f AutoISO (0=No,1=Yes)
@default f 1

@param r Focus to Inf.(0=no, 1=yes)
@default r 1

@param s JPG Q:-1..2=off,best..norm
@default s -1

@param t JPG resol.(-1=off,see doc)
@default t -1

@param u Startup Delay (minutes)
@default u 0

@param g Startup Delay (seconds)
@default g 2

]]

-- Converting thresholdTV to TV96 representation
-- rounding to next faster shutterspeed if needed
thresholdTV = b
thresholdTV96 = 0

if thresholdTV == 2 then
thresholdTV96 = 96
elseif thresholdTV == 3 then
  thresholdTV96 = 160
elseif thresholdTV == 4 then
  thresholdTV96 = 192
elseif thresholdTV == 5 then
  thresholdTV96 = 224
elseif thresholdTV == 6 then
  thresholdTV96 = 256
elseif thresholdTV >= 7 and thresholdTV <=8 then
  thresholdTV96 = 288
elseif thresholdTV >= 9 and thresholdTV <=10 then
  thresholdTV96 = 320
elseif thresholdTV >= 11 and thresholdTV <=13 then
  thresholdTV96 = 352
elseif thresholdTV >= 14 and thresholdTV <=15 then
  thresholdTV96 = 384
elseif thresholdTV >= 16 and thresholdTV <=20 then
  thresholdTV96 = 416
elseif thresholdTV >= 21 and thresholdTV <=25 then
  thresholdTV96 = 448
elseif thresholdTV >= 26 and thresholdTV <=30 then
  thresholdTV96 = 480
elseif thresholdTV >= 31 and thresholdTV <=40 then
  thresholdTV96 = 512
elseif thresholdTV >= 41 and thresholdTV <=50 then
  thresholdTV96 = 544
elseif thresholdTV >= 51 and thresholdTV <=60 then
  thresholdTV96 = 576
elseif thresholdTV >= 61 and thresholdTV <=80 then
  thresholdTV96 = 608
elseif thresholdTV >= 81 and thresholdTV <=100 then
  thresholdTV96 = 640
elseif thresholdTV >= 101 and thresholdTV <=125 then
  thresholdTV96 = 672
elseif thresholdTV >= 126 and thresholdTV <=160 then
  thresholdTV96 = 704
elseif thresholdTV >= 161 and thresholdTV <=200 then
  thresholdTV96 = 736
elseif thresholdTV >= 201 and thresholdTV <=250 then
  thresholdTV96 = 768
elseif thresholdTV >= 251 and thresholdTV <=320 then
  thresholdTV96 = 800
elseif thresholdTV >= 321 and thresholdTV <=400 then
  thresholdTV96 = 832
elseif thresholdTV >= 401 and thresholdTV <=500 then
  thresholdTV96 = 864
elseif thresholdTV >= 501 and thresholdTV <=640 then
  thresholdTV96 = 896
elseif thresholdTV >= 641 and thresholdTV <=800 then
  thresholdTV96 = 928
elseif thresholdTV >= 801 and thresholdTV <=1000 then
  thresholdTV96 = 960
elseif thresholdTV >= 1001 and thresholdTV <=1250 then
  thresholdTV96 = 992
elseif thresholdTV >= 1251 and thresholdTV <=1600 then
  thresholdTV96 = 1021
elseif thresholdTV >= 1601 and thresholdTV <=2000 then
  thresholdTV96 = 1053
end
 
require "fb-lib"
propcase=require("propcase")

-- verbose=1 gives more printout during shoot
verbose=0

min_delay=check_range(a,0,10000)
max_tv=sec_to_tv96(check_range(b,1,65))
default_sv=ISO_to_sv96(check_range(c,0,21)*100)
max_sv=ISO_to_sv96(check_range(d,0,21)*100)
maxISO = d*100

-- select focus distance (user specified if parameter r<=0, infinity otherwise):
if r>0 then subjdist=65535
  else subjdist=get_focus()
end



-- jpg quality -1=do not change, 0=super fine, 1=fine, 2=normal,
jpg_quality=check_range(s, -1, 2)
if jpg_quality>-1 then
  set_prop(propcase.QUALITY, jpg_quality)
end

-- jpg resolution -1=do not change, others are whatever they are in your camera:
-- For a570is Digic III: 0,1,2,3,4,6,8 = L,M1,M2,M3,S,Postcard,W
-- For s3is   Digic  II: 0,1,2,  4,  8 = L,M1,M2,   S,         W
-- We can probably assume those numbers are always the same, but availability may vary.
jpg_resolution=check_range(t, -1, 8)
if jpg_resolution>-1 then
  set_prop(propcase.RESOLUTION, jpg_resolution)
end

startupdelay=check_range(u, 0, 65535)
startupdelaySec = g

-- startup delay if requested
if startupdelay>0 then
  for remaining=startupdelay,1,-1 do
    print("Sleeping ", remaining, " minutes")
    sleep(29980)
    sleep(29990)
  end
end

if startupdelaySec>0 then
  for remaining=startupdelaySec,1,-1 do
    print("Sleeping ", remaining, " seconds")
    sleep(1000)   
  end
end




-- enable shot histogram
shot_histo_enable(1)

-- start counting frames
count_frames=1

-- store script start time and disk space at the beginning:
starttick=get_tick_count()
startdiskspace=get_free_disk_space()

-- next_shoot keeps the time (in get_tick_count units) when next shot should be taken.
-- initialise next_shoot to "shoot now"
next_shoot=0
 
-- force manual focus (does this work?)
set_prop(propcase.FOCUS_MODE,1)
-- disable IS (dunno if this works either)
set_prop(propcase.IS_MODE,3)
-- use widest available aperture (I'm assuming that cameras that don't have an aperture won't respond to this in any way)
set_prop(propcase.USER_AV,get_prop(propcase.MIN_AV))
-- disable flash
set_prop(propcase.FLASH_MODE,2)


-- initializing Focus: setting Focus-Lock
press("shoot_half")
repeat
 sleep(1)
until get_shooting() == true
set_focus(subjdist)
sleep(1000)
press("left")
sleep(100)
release("left")
release("shoot_half")


-- main loop. the program loops forever unless you interrupt it
loopcounter=0
repeat 
  wait_click(100)
  if is_pressed "display" then
    print("Paused by user")
    repeat
    wait_click(100)
    until is_pressed "menu"
    print("Continued by user")
  end
 
  loopcounter = loopcounter+1
  -- now wait for the time to do next shot
  repeat
    sleep(1)
    tick=get_tick_count() 
  until tick>=next_shoot   
 
  -- Reset ISO to default value (ISO 100)
  sv96ISO = 419
  set_sv96(sv96ISO)
 
  -- Measuring TV at default ISO
  press("shoot_half")
  repeat
    sleep(1)
  until get_shooting() == true
  -- get metered day exposure
  bv=get_bv96()
  av=get_av96()
  tv=get_tv96()
  release("shoot_half") 

  -- Check if TV slower than allowed value and raise ISO if needed 
  shoot_sv = default_sv
  difference = 0
  differenceFactor = 0
  sv96ISO = 419
  isoString = 100
 
  difference = thresholdTV96 - tv
  differenceFactor    = difference/96
  differenceRemainder = difference-(differenceFactor*96)
   
  -- Raising ISO and adjusting TV if needed
  while difference>0 and isoString<maxISO do
    difference = difference-96
    isoString = isoString*2
    sv96ISO = sv96ISO+96
    tv=tv+96
  end
 
  -- correcting TV value to match closest TV96 value
  count = 0
  while tv>32 do
   count = count+1
   tv=tv-32
  end
  tvremainder = tv
  if tvremainder >=16 then
  tv = (count*32)+32
  else
    tv = count*32
  end
 

  -- set ISO and TV for next shot,
  set_sv96(sv96ISO)
  set_tv96(tv)   
   
  press("shoot_half")
  repeat
    sleep(1)
  until get_shooting() == true
  set_focus(subjdist)
   
  press("shoot_full")
  release("shoot_full")
  release("shoot_half")
  -- wait for shooting to finish
  repeat
    sleep(1)
  until get_shooting() ~= true
 
       

  -- print out remaining disk space estimates in terms of frames and time:
  print(count_frames .." ISO " .. isoString )
   
  count_frames=count_frames+1
 
  -- we are now ready to shoot, calculate the next shot time
  next_shoot=tick + min_delay*1000

  -- return to top, where we will wait to shoot

  if (e == loopcounter) then
    break
  end
until 1==2


Logged
*

Offline careyer

  • *
  • 19
Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #5 on: 20 / November / 2008, 18:01:10 »
Hello again,

I've improved the script a bit further. In CarLapseV4 I introduced the possibility to PAUSE and RESUME the shooting by button-presses. That's a nice feature when you are waiting at red traffic lights or get into a traffic jam. CarLapseV5 now uses "Motion Detection" to automatically realize if you are in movement with your car or not... If you are not (e.g. when you are waiting at traffic lights) it will PAUSE and RESUME shooting instantly when you start driving again. :-)

Here's the script :-)

Code: [Select]
--[[
@title CarLapseV5
-- Author: careyer
@param a Frame delay (sec)
@default a 0

@param b Max. TV (1/sec)
@default b 125

@param c Default ISO (*100)
@default c 1

@param d Maximum ISO (*100)
@default d 16

@param e Loop X times (0=endless)
@default e 0

@param f AutoISO (0=No,1=Yes)
@default f 1

@param h Pause on MD (0=No,1=Yes)
@default h 1

@param p Check every X frame
@default p 10

@param i MD colums      (def: 6)
@default i 6

@param j MD rows        (def: 4)
@default j 4

@param k MD first colum (def: 3)
@default k 3

@param l MD last  colum (def: 4)
@default l 4

@param m MD first row   (def: 2)
@default m 2

@param n MD last row    (def: 3)
@default n 3

@param r Focus to Inf.(0=no, 1=yes)
@default r 1

@param s JPG Q:-1..2=off,best..norm
@default s -1

@param t JPG resol.(-1=off,see doc)
@default t -1

@param g Startup Delay (seconds)
@default g 2

@param u Startup Delay (minutes)
@default u 0


]]


-- Converting thresholdTV to TV96 representation
-- rounding to next faster shutterspeed if needed
thresholdTV = b
thresholdTV96 = 0

if thresholdTV == 2 then
thresholdTV96 = 96
elseif thresholdTV == 3 then
  thresholdTV96 = 160
elseif thresholdTV == 4 then
  thresholdTV96 = 192
elseif thresholdTV == 5 then
  thresholdTV96 = 224
elseif thresholdTV == 6 then
  thresholdTV96 = 256
elseif thresholdTV >= 7 and thresholdTV <=8 then
  thresholdTV96 = 288
elseif thresholdTV >= 9 and thresholdTV <=10 then
  thresholdTV96 = 320
elseif thresholdTV >= 11 and thresholdTV <=13 then
  thresholdTV96 = 352
elseif thresholdTV >= 14 and thresholdTV <=15 then
  thresholdTV96 = 384
elseif thresholdTV >= 16 and thresholdTV <=20 then
  thresholdTV96 = 416
elseif thresholdTV >= 21 and thresholdTV <=25 then
  thresholdTV96 = 448
elseif thresholdTV >= 26 and thresholdTV <=30 then
  thresholdTV96 = 480
elseif thresholdTV >= 31 and thresholdTV <=40 then
  thresholdTV96 = 512
elseif thresholdTV >= 41 and thresholdTV <=50 then
  thresholdTV96 = 544
elseif thresholdTV >= 51 and thresholdTV <=60 then
  thresholdTV96 = 576
elseif thresholdTV >= 61 and thresholdTV <=80 then
  thresholdTV96 = 608
elseif thresholdTV >= 81 and thresholdTV <=100 then
  thresholdTV96 = 640
elseif thresholdTV >= 101 and thresholdTV <=125 then
  thresholdTV96 = 672
elseif thresholdTV >= 126 and thresholdTV <=160 then
  thresholdTV96 = 704
elseif thresholdTV >= 161 and thresholdTV <=200 then
  thresholdTV96 = 736
elseif thresholdTV >= 201 and thresholdTV <=250 then
  thresholdTV96 = 768
elseif thresholdTV >= 251 and thresholdTV <=320 then
  thresholdTV96 = 800
elseif thresholdTV >= 321 and thresholdTV <=400 then
  thresholdTV96 = 832
elseif thresholdTV >= 401 and thresholdTV <=500 then
  thresholdTV96 = 864
elseif thresholdTV >= 501 and thresholdTV <=640 then
  thresholdTV96 = 896
elseif thresholdTV >= 641 and thresholdTV <=800 then
  thresholdTV96 = 928
elseif thresholdTV >= 801 and thresholdTV <=1000 then
  thresholdTV96 = 960
elseif thresholdTV >= 1001 and thresholdTV <=1250 then
  thresholdTV96 = 992
elseif thresholdTV >= 1251 and thresholdTV <=1600 then
  thresholdTV96 = 1021
elseif thresholdTV >= 1601 and thresholdTV <=2000 then
  thresholdTV96 = 1053
end
 
require "fb-lib"
propcase=require("propcase")

-- verbose=1 gives more printout during shoot
verbose=0

min_delay=check_range(a,0,10000)
max_tv=sec_to_tv96(check_range(b,1,65))
default_sv=ISO_to_sv96(check_range(c,0,21)*100)
max_sv=ISO_to_sv96(check_range(d,0,21)*100)
maxISO = d*100

-- select focus distance (user specified if parameter r<=0, infinity otherwise):
if r>0 then subjdist=65535
  else subjdist=get_focus()
end



-- jpg quality -1=do not change, 0=super fine, 1=fine, 2=normal,
jpg_quality=check_range(s, -1, 2)
if jpg_quality>-1 then
  set_prop(propcase.QUALITY, jpg_quality)
end

-- jpg resolution -1=do not change, others are whatever they are in your camera:
-- For a570is Digic III: 0,1,2,3,4,6,8 = L,M1,M2,M3,S,Postcard,W
-- For s3is   Digic  II: 0,1,2,  4,  8 = L,M1,M2,   S,         W
-- We can probably assume those numbers are always the same, but availability may vary.
jpg_resolution=check_range(t, -1, 8)
if jpg_resolution>-1 then
  set_prop(propcase.RESOLUTION, jpg_resolution)
end

startupdelay=check_range(u, 0, 65535)
startupdelaySec = g

-- startup delay if requested
if startupdelay>0 then
  for remaining=startupdelay,1,-1 do
    print("Sleeping ", remaining, " minutes")
    sleep(29980)
    sleep(29990)
  end
end

if startupdelaySec>0 then
  for remaining=startupdelaySec,1,-1 do
    print("Sleeping ", remaining, " seconds")
    sleep(1000)   
  end
end




-- enable shot histogram
shot_histo_enable(1)

-- start counting frames
count_frames=1

-- store script start time and disk space at the beginning:
starttick=get_tick_count()
startdiskspace=get_free_disk_space()

-- next_shoot keeps the time (in get_tick_count units) when next shot should be taken.
-- initialise next_shoot to "shoot now"
next_shoot=0
 
-- force manual focus (does this work?)
set_prop(propcase.FOCUS_MODE,1)
-- disable IS (dunno if this works either)
set_prop(propcase.IS_MODE,3)
-- use widest available aperture (I'm assuming that cameras that don't have an aperture won't respond to this in any way)
set_prop(propcase.USER_AV,get_prop(propcase.MIN_AV))
-- disable flash
set_prop(propcase.FLASH_MODE,2)


-- initializing Focus: setting Focus-Lock
press("shoot_half")
repeat
 sleep(1)
until get_shooting() == true
set_focus(subjdist)
sleep(1000)
press("left")
sleep(100)
release("left")
release("shoot_half")


-- main loop. the program loops forever unless you interrupt it
loopcounter=0
mdcounter=0
repeat
  mdcounter=mdcounter+1 
  wait_click(100)
  if is_pressed "display" then
    print("Paused by user")
    repeat
    wait_click(100)
    until is_pressed "menu"
    print("Continued by user")
  end
 
  loopcounter = loopcounter+1
  -- now wait for the time to do next shot
  repeat
    sleep(1)
    tick=get_tick_count() 
  until tick>=next_shoot   
 
  -- Reset ISO to default value (ISO 100)
  sv96ISO = 419
  set_sv96(sv96ISO)
 
  -- Measuring TV at default ISO
  press("shoot_half")
  repeat
    sleep(1)
  until get_shooting() == true
  -- get metered day exposure
  bv=get_bv96()
  av=get_av96()
  tv=get_tv96()
  t = 0
  -- Detect Motion ---
  if h>0 and mdcounter==p then
repeat
sleep(1)
t = md_detect_motion(i, j, 1, 40, 15, 5, 1, t, 1, k, m, l, n, 0, 6, 0)
until t>0
mdcounter=0
  end
  release("shoot_half") 

  -- Check if TV slower than allowed value and raise ISO if needed 
  shoot_sv = default_sv
  difference = 0
  differenceFactor = 0
  sv96ISO = 419
  isoString = 100
 
  difference = thresholdTV96 - tv
  differenceFactor    = difference/96
  differenceRemainder = difference-(differenceFactor*96)
   
  -- Raising ISO and adjusting TV if needed
  while difference>0 and isoString<maxISO do
    difference = difference-96
    isoString = isoString*2
    sv96ISO = sv96ISO+96
    tv=tv+96
  end
 
  -- correcting TV value to match closest TV96 value
  count = 0
  while tv>32 do
   count = count+1
   tv=tv-32
  end
  tvremainder = tv
  if tvremainder >=16 then
  tv = (count*32)+32
  else
    tv = count*32
  end
 

  -- set ISO and TV for next shot,
  set_sv96(sv96ISO)
  set_tv96(tv)   
   
  press("shoot_half")
  repeat
    sleep(1)
  until get_shooting() == true
  set_focus(subjdist)
   
  press("shoot_full")
  release("shoot_full")
  release("shoot_half")
  -- wait for shooting to finish
  repeat
    sleep(1)
  until get_shooting() ~= true
 
       

  -- print out remaining disk space estimates in terms of frames and time:
  print(count_frames .." ISO " .. isoString )
   
  count_frames=count_frames+1
 
  -- we are now ready to shoot, calculate the next shot time
  next_shoot=tick + min_delay*1000

  -- return to top, where we will wait to shoot

  if (e == loopcounter) then
    break
  end
until 1==2


BTW: You can of course configure in what time interval the script will check if you are still in movement. To keep the intervalls short you should not check on every frame.

Cheers!
Logged
*

Offline G9rooster

  • *
  • 3
Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #6 on: 24 / December / 2008, 13:25:45 »
careyer
I've trying to run your script, but I get an error
*STARTED*
:132. module 'fb-lib' notfound: oono field package .preload ['fb-lib]
press shutter to close

I've been trying to download the night-time night-lapse to get the fb-lib from it, but I can't find it anywhere.
please can you give some advice.
thanks for your time and happy holidays.

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*

Offline G9rooster

  • *
  • 3
Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #7 on: 24 / December / 2008, 14:01:08 »
careyer
never mind I figured it out. I found the Fb-lib and placed it on the lua folder and started to work. i have 3 hours drive to my mother in law. I will test it . thank you for the script.
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*

Offline G9rooster

  • *
  • 3
Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #8 on: 24 / December / 2008, 14:01:52 »
if somebody has the same problem go here to download the fb-lib.
Night-time time-lapse

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*

Offline whim

  • ******
  • 2041
  • A495/590/620/630 ixus70/115/220/230/300/870 S95
Re: CarLapse - LUA Script for timelapse out of a driving car
« Reply #9 on: 24 / December / 2008, 14:02:16 »
LOL had just D/L it for a shot at CarLapse

see attach.

cheers,

wim
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