#!/bin/bash

# Check if all required arguments are provided
if [ $# -lt 4 ]; then
    echo "Usage: $0 <input_file> <output_file> <start_time> <duration>"
    echo ""
    echo "Arguments:"
    echo "  <input_file>   Path to the input video file."
    echo "  <output_file>  Path to the output video file."
    echo "  <start_time>   Start time in format HH:MM:SS or seconds."
    echo "  <duration>     Duration of the segment in format HH:MM:SS or seconds."
    echo ""
    echo "Example:"
    echo "  $0 input.mp4 output.mp4 00:01:00 30"
    echo ""
    exit 1
fi

# Assign input arguments to variables
input_file=$1
output_file=$2
start_time=$3
duration=$4

# Run ffmpeg command
ffmpeg -i "$input_file" -ss "$start_time" -t "$duration" -vcodec copy -acodec copy "$output_file"