#!/bin/bash

# Check if argument is provided
if [ -z "$1" ]; then
    echo "Usage: $0 <file_or_directory>"
    exit 1
fi

# Function to process a single file
process_file() {
    local input_file="$1"
    local output_file="${input_file%.*}_converted.mkv"
    echo "Processing: $input_file -> $output_file"
    ffmpeg -i "$input_file" -map 0 -pix_fmt yuv420p10le -c:v libx265 -preset slow -crf 18 -c:a aac -b:a 192k -c:s copy -x265-params profile=main10 "$output_file"
}

# If argument is a file, process it
if [ -f "$1" ]; then
    process_file "$1"
elif [ -d "$1" ]; then
    # If argument is a directory, process all .mkv files in it
    for file in "$1"/*.mkv; do
        [ -e "$file" ] || continue  # Skip if no matching files
        process_file "$file"
    done
else
    echo "Error: $1 is not a valid file or directory."
    exit 1
fi