GIF and Boomerang effect

[Lescoal]

Hello there, hello @anxuae, hello @werdeil

Following your answer here : https://github.com/pibooth/pibooth/issues/42#issuecomment-1402633427, a feature proposal would be a boomerang effect and a gif effect in addition to captures ranging from 1 to 4 photos. I already have the python code for both features that is working but I don't know how to integrate them yet. Here is the "gif" code that is working perfectly in standalone :

import os
from datetime import datetime
from picamera import PiCamera
from PIL import Image

# Initialize the camera
camera = PiCamera()

# Start the preview
camera.start_preview()

# Wait for the user to adjust the camera
input("Press enter to start taking photos...")

# Take 3 photos with a 2 second delay between each photo
for i in range(3):
    camera.capture('photo{}.jpg'.format(i))
    time.sleep(2)

# Stop the preview
camera.stop_preview()

# Create a GIF from the 3 photos
with open('animation.gif', 'wb') as f:
    images = [Image.open(f'photo{i}.jpg') for i in range(3)]
    images[0].save(f, save_all=True, append_images=images[1:], duration=400, loop=0)

# Get the current date and time
now = datetime.now()

# Format the date and time as a string
timestamp = now.strftime("%Y-%m-%d_%H-%M-%S")

# Define the path where you want to save the gif
path = '/home/pi/Pictures/gif/'

# Save the GIF locally with the timestamp as the file name in the specific path
with open(path + f'animation_{timestamp}.gif', 'wb') as f:
    images = [Image.open(f'photo{i}.jpg') for i in range(3)]
    images[0].save(f, save_all=True, append_images=images[1:], duration=400, loop=0)

# Delete the original animation.gif
os.remove('animation.gif')

And here is boomerang code that is pretty slow in term of general duration process time so I'm not sure it can be implemented yet, probably it need a little improvment :

import subprocess
from picamera import PiCamera
import os

# Initialize the camera
camera = PiCamera(resolution=(1920, 1080))

# Start the preview
camera.start_preview()

# Wait for the user to adjust the camera
input("Press enter to start recording...")

# Start recording a 5-second video
camera.start_recording('video.h264')
camera.wait_recording(3)
camera.stop_recording()

# Stop the preview
camera.stop_preview()

# Get the current date and time
now = datetime.datetime.now()

# Format the date and time as a string
timestamp = now.strftime("%Y-%m-%d_%H-%M-%S")

# Define the path where you want to save the boomerang video
path = '/home/pi/Pictures/boomerang/'

# Use FFmpeg to reverse the video and create a reversed copy of the video
subprocess.call(['ffmpeg', '-i', 'video.h264', '-vf', 'reverse', '-c:a', 'copy', 'reversed_video.h264'])

# Concatenate the reversed video with the original video to create a boomerang effect
subprocess.call(['ffmpeg', '-i', 'concat:video.h264|reversed_video.h264', '-c:v', 'h264', '-c:a', 'aac', '-filter:v', 'setpts=0.5*PTS', path + 'boomerang_' + timestamp + '.mp4'])

# Delete the original video and reversed video
os.remove('video.h264')
os.remove('reversed_video.h264')

Amazing project and amazing work you did there as I already said !

Regards

[anxuae]

Hi @Lescoal

Thanks a lot for your code, we could integrate it in a plugin or directly in pibooth, what do you think @werdeil ?

So to be sure, you don't want to display it at screen, just generate gif or video in the saved directory ? (displaying it at screen will be more tricky)

[Lescoal]

Hi @anxuae I don’t know what’s the best for pibooth. I’ve never installed a plugin but will it display a button on the screen so we can take gif or boomerang effect ? Thank you by the way to take this enhancement !

[marwiede]

Hi @anxuae, hi @Lescoal,

while looking for another topic, I found your discussion here. I came across the gif feature at another photoboot last weekend and thought about integrating it. I have one early version which is realized as Plugin. The plugin checks if a series of images was captured and creates a gif then. Is this relevant for you or is another implementation more useful? If this matches the requested feature and you like some contribution, I can continue the work next weekend and share it here.

Btw. @anxuae pibooth is an amazing project, I really enjoy building my own photobooth with it! Thanks!

[werdeil]

Hi all I'm just wondering if we shall not merge this mechanism (generate a gif of x photos) to the animate photo mechanism already in place (that displays the 4 photos as a gif to the screen but keep the generated image with the 4 frames). In this case @marwiede mechanism could be done directly (if there are a series of image it generates a gif out of it).

For the Boomerang part, it is a little bit different as we are taking a video not a group of photos. Maybe a plugin for this yes.

[marwiede]

Yeah I was not aware of this animate mechanism. Sounds reasonable! Nevertheless, was a good experience for me doing my first custom plugin.