最終推奨プラン

# 最小限の動画エディタ例（約50行で動作）

import dearpygui.dearpygui as dpg
import subprocess

dpg.create_context()

def cut_video(input_path, output_path, start, end):
    subprocess.run([
        'ffmpeg', '-i', input_path,
        '-ss', str(start), '-to', str(end),
        '-c', 'copy', output_path
    ])

def on_export():
    cut_video(input_file, "output.mp4", start_time, end_time)

with dpg.window(label="Video Editor", width=800, height=600):
    dpg.add_text("Simple Video Editor")
    dpg.add_input_text(label="Input", tag="input_file")
    dpg.add_slider_float(label="Start", tag="start", max_value=100)
    dpg.add_slider_float(label="End", tag="end", max_value=100)
    dpg.add_button(label="Export", callback=on_export)

dpg.create_viewport(title='Video Editor', width=800, height=600)
dpg.setup_dearpygui()
dpg.show_viewport()
dpg.start_dearpygui()
dpg.destroy_context()

# MoviePy v2 構文（v1から破壊的変更あり）
from moviepy import VideoFileClip
import tkinter as tk

def cut_and_export():
    clip = VideoFileClip(input_path)
    cut_clip = clip.subclipped(start_time, end_time)  # v2ではsubclipped
    cut_clip.write_videofile("output.mp4")

# Tkinter GUI（約30行で動作）
root = tk.Tk()
root.title("Video Editor")
tk.Button(root, text="Cut & Export", command=cut_and_export).pack()
root.mainloop()

import flet as ft
import subprocess

def main(page: ft.Page):
    page.title = "Video Editor"
    page.theme_mode = ft.ThemeMode.DARK

    def cut_video(e):
        subprocess.run([
            'ffmpeg', '-y', '-i', input_field.value,
            '-ss', start_field.value, '-to', end_field.value,
            '-c', 'copy', 'output.mp4'
        ])
        status.value = "完了!"
        page.update()

    input_field = ft.TextField(label="入力ファイル", value="input.mp4")
    start_field = ft.TextField(label="開始(秒)", value="0")
    end_field = ft.TextField(label="終了(秒)", value="10")
    status = ft.Text()

    page.add(
        input_field, start_field, end_field,
        ft.ElevatedButton("カット実行", on_click=cut_video),
        status
    )

ft.app(target=main)