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code to control G12 for timelapse photography using ptp chdk

By: a guest on Sep 29th, 2011  |  syntax: Python  |  size: 8.03 KB  |  hits: 187  |  expires: Never
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  1. import datetime
  2. import os
  3. import subprocess
  4. import sys
  5. import time
  6. import glob
  7. import re
  8.  
  9. frame_num_regex = re.compile(r'IMG_(\d+)\.')
  10. jpeg_frame_numbers = list(int(frame_num_regex.search(f).group(1)) for f in glob.glob('images/jpeg/IMG_*.*'))
  11. raw_frame_numbers = list(int(frame_num_regex.search(f).group(1)) for f in glob.glob('images/raw/IMG_*.*'))
  12. jpeg_frame_num = 1
  13. raw_frame_num = 1
  14. if jpeg_frame_numbers:
  15.     jpeg_frame_num = max(jpeg_frame_numbers) + 1
  16. if raw_frame_numbers:
  17.     raw_frame_num = max(raw_frame_numbers) + 1
  18. jpeg_info_file = open('images/jpeg/info.txt', 'a')
  19. raw_info_file = open('images/raw/info.txt', 'a')
  20.  
  21. def get_new_data(file):
  22.     last_file_pointer = 0
  23.     while True:
  24.         file.seek(last_file_pointer)
  25.         data = []
  26.         for line in file:
  27.             data.append(line)
  28.         yield ''.join(data)
  29.         last_file_pointer = file.tell()
  30.  
  31. proc = subprocess.Popen('chdkptp.exe -i -c', stdin=subprocess.PIPE)
  32. stdout_file = open('stdout.txt', 'r')
  33. stdout = get_new_data(stdout_file)
  34. time.sleep(1)
  35. print stdout.next()
  36.  
  37. def run_command(command, delay):
  38.     print command
  39.     proc.stdin.write('%s\n' % command)
  40.     proc.stdin.flush()
  41.     time.sleep(delay)
  42.     result = stdout.next()
  43.     print result
  44.     return result
  45.  
  46. print run_command('reboot\n', 10)
  47. print run_command('connect\n', 2)
  48. print run_command('luar switch_mode_usb(1);\n', 10)
  49.  
  50. # Camera Dials
  51. #   Mode Dial to Manual
  52. #   EV offset to 0
  53. #   ISO to 80
  54. # Camera Settings
  55. #   Mute On
  56. #   Power Save Off
  57. # Settings Menu
  58. #   Focus Bracketing Off
  59. #   Multiple Shots Off
  60. print run_command('luar ' +
  61.     # menu update script
  62.     'click("menu"); sleep(2000); ' + # open up the menu
  63.     # shooting settings
  64.     'click("down"); sleep(500); ' + # skip over af frame
  65.     'if get_prop(299) == 0 then click("down"); sleep(500); end; ' + # skip over af-point zoom
  66.     'click("down"); sleep(500); if get_prop(299)==1 then click("right"); sleep(500); end; ' + # set servo af off 0
  67.     'click("down"); sleep(500); if get_prop(12)==1 then click("right"); sleep(500); end; ' + # set continuous af off 0
  68.     'click("down"); sleep(500); if get_prop(5)==1 then click("right"); sleep(500); end; ' + # set af-assist beam off 0
  69.     'click("down"); sleep(500); ' + # skip over mf-point zoom
  70.     'click("down"); sleep(500); if get_prop(283)==1 then click("right"); sleep(500); end; ' + # set safety mf off 0
  71.     'click("down"); sleep(500); click("right"); ' + # enter flash control menu
  72.     'while get_prop(141) ~= 2 do click("right"); sleep(500); end; ' + # sets flash output to max 2
  73.     'click("down"); sleep(500); if get_prop(64)==1 then click("right"); sleep(500); end; ' + # set shutter sync to first curtain 0
  74.     'click("down"); sleep(500); if get_prop(217)==1 then click("right"); sleep(500); end; ' + # set red-eye lamp to off 0
  75.     'click("menu"); sleep(500); ' + # return from flash control menu
  76.     'click("down"); sleep(500); ' + # skip spot ae point
  77.     'click("down"); sleep(500); ' + # skip review
  78.     'click("down"); sleep(500); ' + # skip review-info
  79.     'click("down"); sleep(500); if get_prop(310)==1 then click("right"); sleep(500); end; ' + # set blink detection to off 0
  80.     'click("down"); sleep(500); ' + # skip custom display
  81.     'click("down"); sleep(500); ' + # skip reverse display no propcase
  82.     'click("down"); sleep(500); while get_prop(145) ~= 4 do click("right"); sleep(500); end; ' + # sets image stabalization mode to off 4 (continuous, ?, shoot only, panning, off)
  83.     'click("down"); sleep(500); while get_prop(60) ~= 0 do click("right"); sleep(500); end; ' + # sets converter to none 0
  84.     'click("down"); sleep(500); ' + # skip set func display
  85.     'click("down"); sleep(500); ' + # skip set shortcut button display
  86.     'click("down"); sleep(500); ' + # skip save settings display
  87.     'click("down"); sleep(500); ' + # return to top of menu
  88.     # camera settings
  89.     'click("right"); sleep(500); ' + # enter camera settings
  90.     'click("down"); sleep(500); click("right"); sleep(500); ' + # can't set mute to on 1 (as it defaults to off)
  91.     # end menu update script
  92.     'click("menu"); sleep(2000); ' + # close the menu
  93.     # settings update script
  94.     'click("set"); sleep(2000); ' + # open up the settings
  95.     'while get_prop(273) ~= 888 do click("right"); sleep(500); end; ' + # set white balance to flash 888
  96.     'click("down"); sleep(500); ' + # can't set focus bracket off no propcase
  97.     'click("down"); sleep(500); ' + # can't set to single shot mode no propcase
  98.     'click("down"); sleep(500); while get_prop(141) ~= 2 do click("right"); sleep(500); end; ' + # set flash output to max 2
  99.     'click("down"); sleep(500); if get_prop(196) == 1 then click("right"); sleep(500); end; ' + # set nd filter to off 0
  100.     'if get_prop(214) ~= 0 then click("down"); sleep(500); end; ' + # skip aspect ratio if we are in raw and jpeg so we can goto set the raw and jpeg setting then we'll come back
  101.     'click("down"); sleep(500); while get_prop(214) ~= 2 do click("right"); sleep(1000); end; ' + # set raw and jpeg to both on 2 (raw, jpeg, raw and jpeg)
  102.     'click("up"); sleep(500); while get_prop(300) ~= 0 do click("right"); sleep(500); end; ' + # set aspect ratio to 4:3 0 (4:3, 16:9, 3:2, 1:1, 4:5)
  103.     'click("down"); sleep(500); click("down"); sleep(500); while get_prop(222) ~= 0 do click("right"); sleep(500); end; ' + # set file size to L 0 (L, M1, M2, ?, S)
  104.     'click("down"); sleep(500); ' + # return to top of menu
  105.     # end settings menu update script
  106.     'click("set"); sleep(2000); ' + # close up the settings
  107.     # general stuff
  108.     'while get_prop(143) ~= 1 do click("right"); sleep(3000); end; ' + # sets flash mode to on 1
  109.     'if get_prop(6) == 1 then click("left") sleep(3000); end; ' + # sets macro mode to off 0
  110.     'if get_prop(133) == 0 then click("up") sleep(3000); end; ' + # sets manual focus mode to off 0
  111.     'while get_prop(227) ~= 0 do click("down"); sleep(3000) end; ' + # sets timer mode to off 0
  112.     'set_zoom(7); sleep(5000); ' + # zoom to proper depth 7
  113.     'sleep(1000); set_backlight(0);\n', 80)
  114.  
  115. while True:
  116.     folders_before = set(run_command('ls DCIM', 1).splitlines()[1:-1])
  117.     current_folder_before = max(folder[:-1] for folder in folders_before if folder != 'CANONMSC/')
  118.     files_before = set(run_command('ls DCIM/%s' % current_folder_before, 1).splitlines()[1:-1])
  119.     photo_datetime = datetime.datetime.now().strftime('%Y-%m-%d %H:%M:%S')
  120.     run_command('luar ' +
  121.         'set_av96_direct(472); ' + # set the av to 96*log2(a^2) 2.8=>285 OR 8.0=>576 OR 5.5=>472 OR 6.5=>519 OR 6.2=>505 OR 6.0=>496
  122.         'set_tv96_direct(1053); ' + # set the exposure to 1/2000=>1053 by 96*log2(1/t) OR 1/1000=>957 OR 1/200=>734 OR 1/50=>542
  123.         'sleep(500); ' + # a little pause for good measure
  124.         'press("shoot_half"); sleep(2000); set_focus(1000); sleep(4000); ' + # set manual focus mode and focus to 1000 mm
  125.         'click("shoot_full"); sleep(4000); release("shoot_half"); sleep(2000); set_backlight(0);', 30)
  126.     folders_after = set(run_command('ls DCIM', 1).splitlines()[1:-1])
  127.     current_folder_after = max(folder[:-1] for folder in folders_after if folder != 'CANONMSC/')
  128.     if current_folder_before != current_folder_after:
  129.         files_before = set()
  130.     files_after = set(run_command('ls DCIM/%s' % current_folder_after, 1).splitlines()[1:-1])
  131.     for new_file in files_after.difference(files_before):
  132.         if new_file.endswith('.JPG'):
  133.             run_command('download A/DCIM/104___09/%s images/jpeg/IMG_%06i.%s' % (new_file, jpeg_frame_num, new_file[-3:]), 5)
  134.             jpeg_info_file.write('%06i\t%s\n' % (jpeg_frame_num, photo_datetime))
  135.             jpeg_info_file.flush()
  136.             jpeg_frame_num += 1
  137.         elif new_file.endswith('.CR2'):
  138.             run_command('download A/DCIM/104___09/%s images/raw/IMG_%06i.%s' % (new_file, raw_frame_num, new_file[-3:]), 20)
  139.             raw_info_file.write('%06i\t%s\n' % (raw_frame_num, photo_datetime))
  140.             raw_info_file.flush()
  141.             raw_frame_num += 1
  142.         run_command('luar os.remove("A/DCIM/104___09/%s");' % new_file, 2)
  143.     time.sleep(300)
  144.  
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