Python Tkinter audio player

Python Tkinter File Operations and Integration: Exercise-5 with Solution

Write a Python program that creates a simple audio player using Tkinter. Allow users to open and play audio files (e.g., .mp3, .wav).

Sample Solution:

Python Code:

import tkinter as tk
from tkinter import filedialog
import pygame

class AudioPlayerApp:
    def __init__(self, root):
        self.root = root
        self.root.title("Audio Player")

        # Create buttons for opening, playing, pausing, and resuming audio files
        self.open_button = tk.Button(root, text="Open Audio File", command=self.open_audio)
        self.play_button = tk.Button(root, text="Play", state=tk.DISABLED, command=self.play_audio)
        self.pause_button = tk.Button(root, text="Pause", state=tk.DISABLED, command=self.pause_audio)
        self.resume_button = tk.Button(root, text="Resume", state=tk.DISABLED, command=self.resume_audio)

        self.open_button.pack(pady=10)
        self.play_button.pack()
        self.pause_button.pack()
        self.resume_button.pack()

        # Initialize pygame
        pygame.mixer.init()

        # Register a callback to stop audio when the window is closed
        root.protocol("WM_DELETE_WINDOW", self.on_closing)

        # Initialize playback state
        self.paused = False

    def open_audio(self):
        file_path = filedialog.askopenfilename(filetypes=[("Audio Files", "*.mp3 *.wav")])
        if file_path:
            self.audio_file = file_path
            self.play_button.config(state=tk.NORMAL)

    def play_audio(self):
        pygame.mixer.music.load(self.audio_file)
        pygame.mixer.music.play()
        self.play_button.config(state=tk.DISABLED)
        self.pause_button.config(state=tk.NORMAL)

    def pause_audio(self):
        pygame.mixer.music.pause()
        self.pause_button.config(state=tk.DISABLED)
        self.resume_button.config(state=tk.NORMAL)
        self.paused = True

    def resume_audio(self):
        pygame.mixer.music.unpause()
        self.resume_button.config(state=tk.DISABLED)
        self.pause_button.config(state=tk.NORMAL)
        self.paused = False

    def on_closing(self):
        # Check if audio is currently playing
        if pygame.mixer.music.get_busy():
            # Stop audio playback before closing the application
            pygame.mixer.music.stop()
        self.root.destroy()

if __name__ == "__main__":
    root = tk.Tk()
    app = AudioPlayerApp(root)
    root.mainloop()

Explanation:

In the exercise above -

• The application allows users to open and play audio files (e.g., .mp3, .wav).
• It uses the Tkinter library to create a graphical user interface (GUI) with buttons.
• When the "Open Audio File" button is clicked, it opens a dialog box for selecting an audio file. The selected file path is stored.
• The "Play" button loads and plays the selected audio file using 'pygame'.
• The "Pause" button pauses audio playback, and the "Resume" button resumes it. These buttons are enabled and disabled based on the playback state.
• The "on_closing()" function handles window closure. If audio is playing, it stops playback before closing the application.
• The 'pygame' library manages audio playback, including loading, playing, pausing, and resuming.
• The pygame.mixer.init() initializes the 'pygame' audio mixer.
• The pygame.mixer.music.get_busy() function checks if audio is currently playing.
• The GUI is created using Tkinter widgets (buttons) and packed within the main application window.

Output:

Flowchart:

Python Code Editor:

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