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| # A simple script to create a slideshow from images in a directory. Put all your images in `input/` | |
| # Delete the old images.txt | |
| rm images.txt | |
| # I used this to convert all my png files to images | |
| # mkdir old | |
| # for f in input/*.png; do | |
| # echo "$f" | |
| # mogrify -format jpg "$f" | |
| # mv "$f" old | |
| # done | |
| # Put all the image files into a text file that will be fed into ffmpeg | |
| for f in input/*.jpg; do | |
| printf '%s\n' "file '$f'" >> images.txt | |
| done | |
| # Sort it | |
| sort -R images.txt > temp | |
| mv temp images.txt | |
| BPM=1.65 # use a BPM finder tool online to find the BPM | |
| MODIFIER=1 # this is a modifier to multiply the BPM | |
| # Calculate duration of video from number of images and framerate | |
| input_fps=$(echo "$BPM * $MODIFIER" | bc -l) # BPM of song multiplied by a modifier to speed it up | |
| total_images=$(cat images.txt | wc -l) | |
| duration=$(printf %.2f $(echo "$total_images / $input_fps" | bc -l)) # get the duration in minutes of the video | |
| duration_ffmpeg=$(printf '%02d:%02d:%02d' $(echo "$duration/3600" | bc) $(echo "$duration%3600/60" | bc) $(python3 -c "print(int($duration%60))")) # format the calculated duration into hours:minutes:seconds for ffmpeg | |
| echo "Duration of video in hours:minutes:seconds -> $duration_ffmpeg" | |
| # -stream_loop -1 -i 'i_miss_the_rage_loop.mp3' # this is to loop the audio. better to concact it instead to make it smoother | |
| ffmpeg -loglevel error -stats -y -f concat -safe 0 -r $input_fps -i "images.txt" -start_number 1 -c:v libx264 -c:a aac -codec:a copy -vf "scale=1280:720:force_original_aspect_ratio=decrease,pad=1280:720:(ow-iw)/2:(oh-ih)/2,setsar=1,format=yuv420p" -r 30 -movflags +faststart -t $duration_ffmpeg out.mp4 | |
| # ffmpeg -y -i out.mp4 -filter_complex [0]pad=w=20+iw:h=20+ih:x=10:y=10:color=red final.mp4 && rm out.mp4 # add a border |
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| # This will extract a random frame from all videos in the current folder. | |
| import os | |
| import cv2 | |
| import random | |
| for file in os.listdir('./webm'): | |
| if file.endswith(".webm"): | |
| vidcap = cv2.VideoCapture('./webm/' + file) | |
| totalFrames = vidcap.get(cv2.CAP_PROP_FRAME_COUNT) | |
| randomFrameNumber=random.randint(0, totalFrames) | |
| vidcap.set(cv2.CAP_PROP_POS_FRAMES,randomFrameNumber) | |
| success, image = vidcap.read() | |
| if success: | |
| cv2.imwrite('./input/' + file + ".jpg", image) | |
| print(file + ".jpg") |
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