A script concats videos together into a single video.

video_concatenator.py

import tkinter as tk
from tkinter import filedialog, messagebox, ttk, simpledialog
from moviepy.editor import VideoFileClip, concatenate_videoclips
from threading import Thread
import sys

def adjust_resolution(clip, target_resolution):
    # Function to adjust video resolution while keeping the aspect ratio
    target_width, target_height = target_resolution
    clip_aspect_ratio = clip.w / clip.h
    target_aspect_ratio = target_width / target_height

    if clip_aspect_ratio > target_aspect_ratio:
        # Video is wider than the target aspect ratio
        return clip.resize(width=target_width)
    else:
        # Video is taller than the target aspect ratio
        return clip.resize(height=target_height)

def concatenate_videos(video_files, output_path, target_resolution=(1920, 1080), bitrate='5000k', on_complete=None):
    try:
        clips = [adjust_resolution(VideoFileClip(path), target_resolution) for path in video_files]
        final_clip = concatenate_videoclips(clips, method="compose")
        final_clip.write_videofile(output_path, bitrate=bitrate, codec='libx264', audio_codec='aac', fps=24)
        final_clip.close()
    except Exception as e:
        messagebox.showerror("Error", str(e))
    finally:
        if on_complete:
            on_complete()

def main():
    def remove_video():
        selected = listbox.curselection()
        if selected:
            listbox.delete(selected[0])

    def start_concatenation():
        video_files = listbox.get(0, tk.END)
        bitrate = bitrate_entry.get()
        output_file = filedialog.asksaveasfilename(defaultextension=".mp4",
                                                   filetypes=[("MP4 files", "*.mp4")])
        if output_file:
            start_button.config(text="Connecting...", state='disabled')
            Thread(target=concatenate_videos, args=(video_files, output_file, (1920, 1080), bitrate, on_concatenation_complete)).start()

    def on_concatenation_complete():
        start_button.config(text="Start", state='normal')
        messagebox.showinfo("Success", "The videos have been successfully concatenated!")

    def add_videos():
        files = filedialog.askopenfilenames(filetypes=[("MP4 files", "*.mp4")])
        for file in files:
            listbox.insert(tk.END, file)

    root = tk.Tk()
    root.title("Video Concatenator")

    listbox = tk.Listbox(root, width=50, height=15)
    listbox.pack(padx=10, pady=10)

    add_button = tk.Button(root, text="Add Videos", command=add_videos)
    add_button.pack(padx=10, pady=5)

    remove_button = tk.Button(root, text="Remove Video", command=remove_video)
    remove_button.pack(padx=10, pady=5)

    bitrate_label = tk.Label(root, text="Bitrate (e.g., '5000k'):")
    bitrate_label.pack(padx=10, pady=5)

    bitrate_entry = tk.Entry(root)
    bitrate_entry.pack(padx=10, pady=5)
    bitrate_entry.insert(0, "5000k")

    start_button = tk.Button(root, text="Start", command=start_concatenation)
    start_button.pack(padx=10, pady=10)

    root.mainloop()

if __name__ == "__main__":
    main()