Add anti-flicker control

config.toml

@@ -1,21 +1,23 @@
 [DEFAULT]
-cam_is_showmewebcam = true
+cam_is_picam = true
+cam_is_showmewebcam = false
 use_date_for_folder = false
-file_extension = 'png'
+file_extension = 'jpg'
+jpg_quality = 88
 projects_folder = ''
 onion_skin_onstartup = true
 onionskin_alpha_default = 0.5
 fullscreen_bool = true
-screen_w = 1920
+screen_w = 1440
-screen_h = 1080
+screen_h = 900
 framerate = 16
 ffmpeg_path = '/usr/bin/ffmpeg'
 export_options = 'scale=1920:-1,crop=1920:1080'
 [CAMERA]
-cam_w = 1600
+cam_w = 1920
-cam_h = 900
+cam_h = 1080
-vflip = 1
+vflip = 0
-hflip = 1
+hflip = 0
 auto_exposure = 1
-white_balance_auto_preset = 2
+white_balance_auto_preset = 1
 video_bitrate=25000000

frame_opencv.py

@@ -1,3 +1,4 @@
+#!/bin/env python
 import cv2
 import gettext
 from itertools import count
@@ -14,6 +15,10 @@ import tomllib
 import numpy as np
 import serialutils
 
+# Run from SSH
+if not os.getenv('DISPLAY'):
+    os.putenv('DISPLAY', ':0')
+
 running_from_folder = os.path.realpath(__file__)
 alphabet = ['A','B','C','D','E','F','G','H','I','J','K','L','M','N','O','P','Q','R','S','T','U','V','W','X','Y','Z']
 
@@ -25,9 +30,11 @@ _ = gettext.translation('template', localedir='locales', languages=[LOCALE]).get
 # Config 
 # defaults
 project_settings_defaults = {
+    'cam_is_picam': True,
     'cam_is_showmewebcam': False,
     'use_date_for_folder': False,
     'file_extension':'png',
+    'jpg_quality':90,
     'projects_folder': '',
     'onion_skin_onstartup' : False,
     'onionskin_alpha_default' : 0.4,
@@ -65,13 +72,22 @@ for location in config_locations:
             config_found_msg = _("Found configuration file in {}").format(os.path.expanduser(location))
 print(config_found_msg)
 
-camera_current_settings = {
+if project_settings['cam_is_showmewebcam']:
+    camera_current_settings = {
         'auto_exposure': dict(min=0, max=1, default=camera_settings['auto_exposure'], value=camera_settings['auto_exposure']),
         'white_balance_auto_preset': dict(min=0, max=9, default=camera_settings['white_balance_auto_preset'], value=camera_settings['white_balance_auto_preset']),
         'horizontal_flip': dict(min=0, max=1, default=camera_settings['hflip'], value=camera_settings['hflip']),
         'vertical_flip': dict(min=0, max=1, default=camera_settings['vflip'], value=camera_settings['vflip']),
         'video_bitrate': dict(min=25000000, max=25000000, default=camera_settings['video_bitrate'], value=camera_settings['video_bitrate']),
     }
+else: # cam is picam
+    camera_current_settings = {
+        'auto_exposure': dict(min=0, max=4, default=camera_settings['auto_exposure'], value=camera_settings['auto_exposure']),
+        'white_balance_auto_preset': dict(min=0, max=7, default=camera_settings['white_balance_auto_preset'], value=camera_settings['white_balance_auto_preset']),
+        'horizontal_flip': dict(min=0, max=1, default=camera_settings['hflip'], value=camera_settings['hflip']),
+        'vertical_flip': dict(min=0, max=1, default=camera_settings['vflip'], value=camera_settings['vflip']),
+        'anti_flicker': dict(min=0, max=2, default=1, value=1),
+    }
 
 
 def apply_cam_setting(cam_settings:dict, to_set:list=None):
@@ -113,7 +129,7 @@ def generate_text_image(text:str, screen_w, screen_h, bullets=False):
                           )
     text_image_draw = ImageDraw.Draw(text_image)
     if text is not None:
-        font = ImageFont.truetype("Tuffy_Bold.ttf", (screen_w/32))
+        font = ImageFont.truetype("Tuffy_Bold.ttf", int(screen_w/32))
         lines = text.split('\n')
         longest_line = lines[0]
         for line in lines:
@@ -435,12 +451,45 @@ def main(args):
 
     global onionskin, liveview_only, playback, loop_playback, playhead, index, img_list, first_playback, camera_current_settings
     
+    if not project_settings['cam_is_picam']:
         if not testDevice(0):
             print(_("No camera device found. Exiting..."))
             return 1
         cam = cv2.VideoCapture(0)
         cam.set(cv2.CAP_PROP_FRAME_WIDTH, camera_settings['cam_w'])
         cam.set(cv2.CAP_PROP_FRAME_HEIGHT, camera_settings['cam_h'])
+    else:
+        # Pi Cam V3 setup
+        from picamera2 import Picamera2
+        from libcamera import Transform
+        cam = Picamera2()
+        picam_config = cam.create_video_configuration(main={"format": 'RGB888',"size": (camera_settings['cam_w'], camera_settings['cam_h'])})
+        # ~ picam_config["transform"] = Transform(hflip=camera_settings['hflip'], vflip=camera_settings['vflip'])
+        picam_config["transform"] = Transform(vflip=camera_current_settings['vertical_flip']['value'],hflip=camera_current_settings['horizontal_flip']['value'])
+        
+        cam.configure(picam_config)
+        # Autofocus, get lens position and switch to manual mode
+        # Set Af mode to Auto then Manual (0). Default is Continuous (2), Auto is 1
+        cam.set_controls({'AfMode':1})
+        cam.start()
+        cam.autofocus_cycle()
+        cam_lenspos = cam.capture_metadata()['LensPosition']
+        # Set focus, wb, exp to manual
+        cam.set_controls({'AfMode': 0,
+                          'AwbEnable': 1,
+                          'AwbMode': camera_current_settings['white_balance_auto_preset']['default'],
+                          'AeEnable': 1,
+                          'AeExposureMode': camera_current_settings['auto_exposure']['default'],
+                          # Enable flicker avoidance due to mains
+                          'AeFlickerMode': 1,
+                          # Mains 50hz = 10000, 60hz = 8333
+                          # ~ 'AeFlickerPeriod': 8333,
+                          'AeFlickerPeriod': 10000,
+                          # Format is (min, max, default) in ms
+                          # here: (60fps, 12fps, None)
+                          # ~ 'FrameDurationLimits':(16666,83333,None)
+                          })
+        # ~ cam.stop()
 
     frame = get_onionskin_frame(savepath, index)
    
@@ -480,10 +529,13 @@ def main(args):
         
         if liveview_only:
             # ~ onionskin = False
+            if not project_settings['cam_is_picam']:
                 ret, overlay = cam.read()
                 if not ret:
                     print(_("Failed to grab frame."))
                     break
+            else:
+                overlay = cam.capture_array("main")
             # Resize preview
             overlay = cv2.resize(overlay, (project_settings['screen_w'], project_settings['screen_h']))
             cv2.imshow("StopiCV", overlay)
@@ -491,7 +543,13 @@ def main(args):
              # ~ onionskin = True
                 
         if onionskin:
+            if not project_settings['cam_is_picam']:
                 ret, overlay = cam.read()
+                if not ret:
+                    print(_("Failed to grab frame."))
+                    break
+            else:
+                overlay = cam.capture_array("main")
             og_frame = overlay.copy()
             # Resize preview
             overlay = cv2.resize(overlay, (project_settings['screen_w'], project_settings['screen_h']))
@@ -499,81 +557,153 @@ def main(args):
             alpha = project_settings['onionskin_alpha_default']
             beta = (1.0 - alpha)
             overlay = cv2.addWeighted(frame, alpha, overlay, beta, 0)
-
-            if not ret:
-                print(_("Failed to grab frame."))
-                break
             cv2.imshow("StopiCV", overlay)
         
         if not playback and not onionskin and not liveview_only:
             cv2.imshow("StopiCV", frame)
 
         k = cv2.waitKey(1)
-        # TODO : Show liveview only
+        # Key l / kp 5
-        # Key l / 5
+        if (k%256 == 108) or (k%256 == 53) or (k%256 == 181):
-        if (k%256 == 108) or (k%256 == 53):
+            print(_("Liveview only"))
             # Toggle liveview
             liveview_only = not liveview_only
             onionskin = not onionskin
-        # Key o / 9
+        # Key o / kp slash
-        if (k%256 == 111) or (k%256 == 47):
+        elif (k%256 == 111) or (k%256 == 47) or (k%256 == 175):
+            print(_("Onionskin toggle"))
             # Toggle onionskin
             onionskin = not onionskin
             liveview_only = False
         # Key w / 7 - cycle wb
-        if (k%256 == 119) or (k%256 == 55):
+        elif (k%256 == 119) or (k%256 == 55) or (k%256 == 183):
+            print(_("White balance mode"))
             camera_current_settings = apply_cam_setting(camera_current_settings, ['white_balance_auto_preset'])
+            if project_settings['cam_is_picam']:
+                cam.set_controls({'AwbMode': camera_current_settings['white_balance_auto_preset']['value']})
         # Key x / 1 - cycle exposure
-        if (k%256 == 120) or (k%256 == 49):
+        elif (k%256 == 120) or (k%256 == 49) or (k%256 == 177):
+            print(_("Exp. mode"))
             camera_current_settings = apply_cam_setting(camera_current_settings, ['auto_exposure'])
+            if project_settings['cam_is_picam']:
+                print(camera_current_settings['auto_exposure']['value'])
+                if camera_current_settings['auto_exposure']['value'] == 4:
+                    cam.set_controls({'AeEnable': 1})
+                else:
+                    cam.set_controls({'AeEnable': 0})
+                    cam.set_controls({"AeExposureMode": camera_current_settings['auto_exposure']['value']})
         # Key f / 3 - flip image
-        if (k%256 == 102) or (k%256 == 51):
+        elif (k%256 == 102) or (k%256 == 51) or (k%256 == 179):
+            print(_("Flip image"))
             camera_current_settings = apply_cam_setting(camera_current_settings, ['vertical_flip','horizontal_flip'])
-        # Key up
+            if project_settings['cam_is_picam']:
-        elif (k%256 == 82) or (k%256 == 56):
+                cam.stop()
+                picam_config["transform"] = Transform(vflip=camera_current_settings['vertical_flip']['value'],hflip=camera_current_settings['horizontal_flip']['value'])
+                cam.configure(picam_config)
+                cam.start()
+        # Key up, kp 8
+        elif (k%256 == 82) or (k%256 == 56) or (k%256 == 184):
+            print(_("Last frame"))
             if len(img_list):   
                 if playback:
                     playback = False
             index, frame = last_frame(index)
-        # Key down
+        # Key down , kp 2
-        elif (k%256 == 84) or (k%256 == 50):
+        elif (k%256 == 84) or (k%256 == 50) or (k%256 == 178):
+            print(_("First frame"))
             if len(img_list):   
                 if playback:
                     playback = False
             index, frame = first_frame(index)
-        # Key left
+        # Key left, kp 4
-        elif (k%256 == 81) or (k%256 == 52):
+        elif (k%256 == 81) or (k%256 == 52) or (k%256 == 180):
+            print(_("Prev. frame"))
             # Displau previous frame
             if len(img_list):
                 if playback:
                     playback = False
                 index, frame = previous_frame(index)
-        # Key right
+        # Key right, kp 6
-        elif (k%256 == 83) or (k%256 == 54):
+        elif (k%256 == 83) or (k%256 == 54) or (k%256 == 182):
+            print(_("Next frame"))
             # Displau next frame
             if len(img_list):
                 if playback:
                     playback = False
                 index, frame = next_frame(index)
         # Key r / keypad 9 - reset wb,exp
-        elif (k%256 == 114) or (k%256 == 57):
+        elif (k%256 == 114) or (k%256 == 57) or (k%256 == 185) :
             print(_("Reset camera settings"))
             camera_current_settings = apply_cam_setting(camera_current_settings)
+            if project_settings['cam_is_picam']:
+                if camera_current_settings['auto_exposure']['default'] == 4:
+                    cam.set_controls({'AeEnable': 0})
+                else:
+                    cam.set_controls({'AeEnable': 1})
+                    cam.set_controls({"AeExposureMode": camera_current_settings['auto_exposure']['default']})
+                cam.set_controls({'AwbMode': camera_current_settings['white_balance_auto_preset']['default']})
+                cam.stop()
+                picam_config["transform"] = Transform(vflip=camera_current_settings['vertical_flip']['default'],hflip=camera_current_settings['horizontal_flip']['default'])
+                cam.configure(picam_config)
+                cam.start()
+                
         # Key e / keypad *
-        elif (k%256 == 101) or (k%256 == 42):
+        elif (k%256 == 101) or (k%256 == 42) or (k%256 == 170) :
             print(_("Export"))
             ffmpeg_process = export_animation(input_filename, export_filename)
-        # Key Return
+        # Key Return, kp return
-        elif (k%256 == 13):
+        elif (k%256 == 13) or (k%256 == 141) :
             print(_("Playback"))
             playhead = index
             loop_playback = True
             playback = not playback
         # Key remove frame - backspace, del, numpad_minus
-        elif (k%256 == 8) or (k%256 == 45) or (k == 255):
+        elif (k%256 == 8) or (k%256 == 45) or (k == 255) or (k%256 == 173) :
             # Remove frame
             print(_("Remove frame"))
             img_list, index, frame = remove_frame(img_list, index)
+        # TODO: replace keys with rotary encoder
+        # Focus +/- with a,z
+        elif (k%256 == 97) and project_settings['cam_is_picam']:
+            cam_lenspos += 0.2
+            # Set AfMode to Manual
+            cam.set_controls({'AfMode': 0, 'LensPosition': cam_lenspos})
+            print(_("+Lens pos: {}".format(cam_lenspos)))
+        elif (k%256 == 122) and project_settings['cam_is_picam']:
+            cam_lenspos -= 0.2
+            # Set AfMode to Manual
+            cam.set_controls({'AfMode': 0, 'LensPosition': cam_lenspos})
+            print(_("-Lens pos: {}".format(cam_lenspos)))
+        # Set anti-flicker mode with q
+        elif (k%256 == 113) and project_settings['cam_is_picam']:
+            # Set AfMode to Manual
+            camera_current_settings = apply_cam_setting(camera_current_settings, ['anti_flicker'])
+            if camera_current_settings['anti_flicker']['value'] == 0:
+                cam.set_controls({'AeFlickerMode': 0})
+            elif camera_current_settings['anti_flicker']['value'] == 1:
+                cam.set_controls({'AeFlickerMode': 1, 'AeFlickerPeriod':8333})
+            else:
+                cam.set_controls({'AeFlickerMode': 1, 'AeFlickerPeriod':10000})
+            print(camera_current_settings['anti_flicker']['value'])
+        # ~ elif (k%256 == 115) and project_settings['cam_is_picam']:
+            # ~ # Set AfMode to Manual
+            # ~ cam.set_controls({'AeFlickerMode': 0, 'AeFlickerPeriod': 8333})
+        # Take pic
+        # SPACE or numpad 0 pressed
+        elif (k%256 == 32) or (k%256 == 48) or (k%256 == 176):
+            print(_("Capture frame"))
+            img_name = return_next_frame_number(get_last_frame(savepath))
+            img_path = os.path.join(savepath, img_name)
+            if project_settings['file_extension'] == 'jpg':
+                cv2.imwrite(img_path, og_frame, [int(cv2.IMWRITE_JPEG_QUALITY), project_settings['jpg_quality']])
+            else:
+                cv2.imwrite(img_path, og_frame)
+            print(_("File {} written.").format(img_path))
+            if len(img_list) and (img_list[index] == '{letter}.-001.{ext}'.format(letter=project_letter, ext=project_settings['file_extension'])):
+                img_list[index] = img_name
+            else:
+                index += 1
+            frame = get_onionskin_frame(savepath, index)
         # Quit app
         elif k%256 == 27:
             # ESC pressed
@@ -582,21 +712,10 @@ def main(args):
         elif ctrlc_pressed:
             print(_("Ctrl-C hit, exiting..."))
             break
-        elif cv2.getWindowProperty("StopiCV", cv2.WND_PROP_VISIBLE) < 1:
+        elif cv2.getWindowProperty("StopiCV", cv2.WND_PROP_AUTOSIZE) == -1:
             print(_("Window was closed, exiting..."))
+            # ~ pass
             break
-        # Take pic
-        # SPACE or numpad 0 pressed
-        elif (k%256 == 32) or (k%256 == 48):
-            img_name = return_next_frame_number(get_last_frame(savepath))
-            img_path = os.path.join(savepath, img_name)
-            cv2.imwrite(img_path, og_frame)
-            print(_("File {} written.").format(img_path))
-            if len(img_list) and (img_list[index] == '{letter}.-001.{ext}'.format(letter=project_letter, ext=project_settings['file_extension'])):
-                img_list[index] = img_name
-            else:
-                index += 1
-            frame = get_onionskin_frame(savepath, index)
         # REMOVE : Debug print keycode
         elif k==-1:  # normally -1 returned,so don't print it
             continue
@@ -619,7 +738,10 @@ def main(args):
             except:
                 print(_("Terminating running process..."))
                 ffmpeg_process.terminate()
+    if not project_settings["cam_is_picam"]:
         cam.release()
+    else:
+        cam.close()
     cv2.destroyAllWindows()
 
 cv2.namedWindow("StopiCV", cv2.WINDOW_GUI_NORMAL)

readme.md

@@ -1,10 +1,15 @@
 # Stopi2
 
+## Branche libcamera 
+
+**Ceci est la branche qui restaure la possibilité d'utiliser des périphériques compatibles rpi-libcamera (Modules Raspicam v1,v2 et v3).**  
+**En utilisant la [branche correspondante pour la télécommande picote](/arthus/picote/src/branch/picamera), vous pouvez régler la mise au point du module caméra avec un [codeur rotatif](https://fr.wikipedia.org/wiki/Codeur_rotatif).**  
+
 <a style="max-height: 300px;display: inline-block;" href="./stopi2/raw/branch/master/stopi_station.jpg"><img src="./stopi_station.jpg"/><a/>  
 
-Seconde version du script python [stopi](https://git.arthus.net/arthus/stopi) destiné à être utilisé avec une télécommande [picote](/arthus/picote).  
+Seconde version du script python [stopi](https://git.arthus.net/arthus/stopi) destiné à être utilisé avec une télécommande [picote](/arthus/picote/src/branch/picamera).  
 
-Cette version utilise opencv et ne fonctionne pour le moment qu'avec une webcam.  
+Cette version utilise opencv et libcamera.Elle fonctionne avec une webcam ou un module vidéo Picamera (v1,v2 ou v3).  
 Encore une fois, l'objectif est de créer un logiciel simple et minimaliste dans son interface, dont les caractéristiques sont les suivantes :  
 
  * Affichage des images en plein écran sans interface : toutes les fonctions utilisent quelques touches du clavier.
@@ -17,7 +22,7 @@ Encore une fois, l'objectif est de créer un logiciel simple et minimaliste dans
 
 ## Banc de test
 
-Ce script a été testé avec une webcam compatible V4L2, et plus précisement une ["showmewebcam"](https://github.com/showmewebcam/showmewebcam) à base de rpi 0 et d'un module caméra v2 (8Mp), et un ordinateur classique sous [Debian](https://debian.org).  
+Ce script a été testé avec une webcam compatible V4L2, une ["showmewebcam"](https://github.com/showmewebcam/showmewebcam) à base de rpi 0 et d'un module caméra v2 (8Mp), et un ordinateur classique sous [Debian](https://debian.org) et un [RPI 4B](https://www.raspberrypi.com/products/raspberry-pi-4-model-b/) munis d'un module [Picamera V3](https://www.raspberrypi.com/products/camera-module-3/).  
 Les contributions et rapports de bugs sont les bienvenus !  
 
 ## Installation
@@ -28,7 +33,7 @@ Dans un terminal :
  1. Installer les dépendances suivantes : 
     ```
     # Avec une distribution basée sur Debian (Ubuntu, Mint...)
-    sudo apt install --no-install-recommends --no-install-suggests git ffmpeg python3-tk python3-pip python3-venv libtiff5-dev libtopenjp2 libopenjp2-7-dev zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev libharfbuzz-dev libfribidi-dev libxcb1-dev python3-tk python3-dev
+    sudo apt install --no-install-recommends --no-install-suggests git ffmpeg python3-tk python3-pip python3-venv libtiff5-dev libtopenjp2 libopenjp2-7-dev zlib1g-dev libfreetype6-dev liblcms2-dev libwebp-dev tcl8.6-dev tk8.6-dev libharfbuzz-dev libfribidi-dev libxcb1-dev python3-tk python3-dev libopenblas-dev libatlas-base-dev libhdf5-dev libhdf5-serial-dev libatlas-base-dev libjasper-dev  libqtgui4  libqt4-test
     ```
     - (Optionnel) Pour installer un environnement graphique minimal sur une [installation console](https://debian-facile.org/doc:install:installation-minimale)  : `sudo apt install --no-install-recommends --no-install-suggests openbox xserver-xorg xinit pcmanfm gmrun lxterminal hsetroot unclutter plymouth plymouth-themes`  
  2. Cloner le dépôt dans le dossier de votre choix : `git clone https://git.arthus.net/arthus/stopi2.git`
@@ -128,3 +133,10 @@ en :
 Puis configurer plymouth : `sudo plymouth-set-default-theme`  
 
 Appliquer les modifs avec `sudo update-grub`.  
+
+## Raspberry Pi OS
+
+Avec Raspberry Pi OS, il suffit d'ajouter les options suivantes dans '/boot/firmware/cmdline.txt':
+`loglevel=3 vt.global_cursor_default=0 logo.nologo consoleblank=3 quiet`
+
+``

requirements.txt

@@ -1,5 +1,5 @@
 Send2Trash
-opencv-python
 numpy
 pyserial
 pillow
+opencv-python