ConvertMP4toGIF.py

import tkinter as tk
from tkinter import filedialog, messagebox
import subprocess
import os
import tempfile

def browse_input():
    file_path = filedialog.askopenfilename(filetypes=[("MP4 files", "*.mp4")])
    if file_path:
        entry_input.delete(0, tk.END)
        entry_input.insert(0, file_path)

def browse_output():
    file_path = filedialog.asksaveasfilename(defaultextension=".gif", filetypes=[("GIF files", "*.gif")])
    if file_path:
        entry_output.delete(0, tk.END)
        entry_output.insert(0, file_path)

def convert_video():
    input_file = entry_input.get()
    output_file = entry_output.get()
    fps = entry_fps.get()
    width = entry_width.get()
    height = entry_height.get()
    
    if not os.path.exists(input_file):
        messagebox.showerror("Error", "Input file does not exist.")
        return
    if not output_file:
        messagebox.showerror("Error", "Please specify an output file.")
        return
    if not fps:
        messagebox.showerror("Error", "Please enter FPS value.")
        return
    if not width or not height:
        messagebox.showerror("Error", "Please enter both width and height.")
        return

    try:
        # Create a temporary file for the palette
        with tempfile.NamedTemporaryFile(delete=False, suffix=".png") as tmp:
            palette_file = tmp.name

        # Step 1: Generate the palette
        palette_cmd = [
            "ffmpeg",
            "-y",
            "-i", input_file,
            "-vf", f"fps={fps},scale={width}:{height}:flags=lanczos,palettegen",
            palette_file
        ]
        subprocess.run(palette_cmd, check=True)

        # Step 2: Use the palette to create the GIF
        gif_cmd = [
            "ffmpeg",
            "-i", input_file,
            "-i", palette_file,
            "-filter_complex", f"fps={fps},scale={width}:{height}:flags=lanczos[x];[x][1:v]paletteuse",
            output_file
        ]
        subprocess.run(gif_cmd, check=True)

        # Remove the temporary palette file
        os.remove(palette_file)

        messagebox.showinfo("Success", "Conversion completed successfully!")
    except subprocess.CalledProcessError as e:
        messagebox.showerror("Error", f"Conversion failed:\n{e}")
    except Exception as e:
        messagebox.showerror("Error", f"An error occurred:\n{e}")

# Set up the GUI
root = tk.Tk()
root.title("MP4 to GIF Converter")
root.wm_attributes('-toolwindow', 'True')  # Set as a tool window

# Input file selection
tk.Label(root, text="Input MP4 File:").grid(row=0, column=0, padx=5, pady=5, sticky="e")
entry_input = tk.Entry(root, width=50)
entry_input.grid(row=0, column=1, padx=5, pady=5)
tk.Button(root, text="Browse", command=browse_input).grid(row=0, column=2, padx=5, pady=5)

# Output file selection
tk.Label(root, text="Output GIF File:").grid(row=1, column=0, padx=5, pady=5, sticky="e")
entry_output = tk.Entry(root, width=50)
entry_output.grid(row=1, column=1, padx=5, pady=5)
tk.Button(root, text="Browse", command=browse_output).grid(row=1, column=2, padx=5, pady=5)

# FPS input with pre-filled value "30"
tk.Label(root, text="FPS:").grid(row=2, column=0, padx=5, pady=5, sticky="e")
entry_fps = tk.Entry(root)
entry_fps.grid(row=2, column=1, padx=5, pady=5, sticky="w")
entry_fps.insert(0, "30")

# Output size input with pre-filled values 640x480
tk.Label(root, text="Output Size (width x height):").grid(row=3, column=0, padx=5, pady=5, sticky="e")
entry_width = tk.Entry(root, width=10)
entry_width.grid(row=3, column=1, padx=(5,0), pady=5, sticky="w")
entry_width.insert(0, "640")
tk.Label(root, text="x").grid(row=3, column=1, padx=(80,0), pady=5, sticky="w")
entry_height = tk.Entry(root, width=10)
entry_height.grid(row=3, column=1, padx=(100,0), pady=5, sticky="w")
entry_height.insert(0, "480")

# Convert button
tk.Button(root, text="Convert", command=convert_video).grid(row=4, column=1, padx=5, pady=15)

root.mainloop()