#!/bin/bash

# Function to process the video
process_video() {
    input_file="$1"
    # Get the full path without extension
    dir=$(dirname -- "$input_file")
    filename=$(basename -- "$input_file")
    extension="${filename##*.}"
    filename="${filename%.*}"

    # Check if the file already has _halfres in its name
    if [[ "$filename" == *"_halfres" ]]; then
        echo "Skipping $input_file, already processed (_halfres found)."
        return
    fi

    # Create the output filename with full path
    output_file="${dir}/${filename}_halfres.${extension}"

    if [ -f "$output_file" ]; then
        echo "Skipping $input_file, already transcoded."
        return
    fi

    # Resize the video to half resolution using ffmpeg
    ffmpeg -i "$input_file" -vf scale=960:540 "$output_file"
}


# Export the function so it can be used by find
export -f process_video

# Find all .mp4 files recursively and process them
find . -type f -name "*.mp4" ! -name "*_halfres.mp4" -exec bash -c 'process_video "$0"' {} \;

echo "All videos have been processed."