convertMOVFiletoMP4File.sh

#!/bin/bash

# This script is a comprehensive Bash script that automates the process of installing FFmpeg (if not already installed), 
# then recursively searches through a directory and its subdirectories for .mov files. 
# For each .mov file found, it uses FFmpeg to convert the file into a compressed .mp4 format, 
# aiming to significantly reduce the file size with minimal loss in quality.


# Function to install ffmpeg
install_ffmpeg() {
    echo "ffmpeg is not installed. Attempting to install using Homebrew..."

    # Install Homebrew if it's not installed
    if ! command -v brew &> /dev/null; then
        echo "Homebrew not found. Installing Homebrew..."
        /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    fi

    # Install ffmpeg using Homebrew
    brew install ffmpeg
}

# Function to process files in a directory
process_directory() {
    local directory=$1
    local count=0

    # Iterate over all files in the directory
    for file in "$directory"/*; do
        # Check if it's a directory
        if [ -d "$file" ]; then
            # It's a directory, so process it recursively
            process_directory "$file"
        elif [ -f "$file" ]; then
            # It's a file, check if it's an MOV
            if [[ "$file" == *.mov ]]; then
                # Get the base name without the extension
                local base_name=$(basename "$file" .mov)
                local output_file="${directory}/${base_name}-compressed.mp4"

                # Execute ffmpeg command to compress the mp4 file
                ffmpeg -i "$file" -vcodec libx264 -crf 24 -preset slow -acodec copy "$output_file" &
                
                # Increment the count
                ((count++))

                # If the number of jobs reaches the limit, wait for all to complete
                if ((count % num_jobs == 0)); then
                    wait # Wait for all background jobs to finish
                fi
            fi
        fi
    done
}

# Check if ffmpeg is installed
if ! command -v ffmpeg &> /dev/null; then
    install_ffmpeg
    
    # Check if ffmpeg was successfully installed
    if ! command -v ffmpeg &> /dev/null; then
        echo "Failed to install ffmpeg. Please install it manually."
        exit 1
    fi
fi

num_jobs=12  # Adjust based on your system's capabilities

# Start processing from the current directory
process_directory "."

wait # Wait for any remaining background jobs to finish
echo "Conversion complete."