import tkinter as tk from tkinter import filedialog, messagebox import threading import time import opuslib import struct import numpy as np import sounddevice as sd import os def play_p3_file(input_file, stop_event=None, pause_event=None): """ 播放p3格式的音频文件 p3格式: [1字节类型, 1字节保留, 2字节长度, Opus数据] """ # 初始化Opus解码器 sample_rate = 16000 # 采样率固定为16000Hz channels = 1 # 单声道 decoder = opuslib.Decoder(sample_rate, channels) # 帧大小 (60ms) frame_size = int(sample_rate * 60 / 1000) # 打开音频流 stream = sd.OutputStream( samplerate=sample_rate, channels=channels, dtype='int16' ) stream.start() try: with open(input_file, 'rb') as f: print(f"正在播放: {input_file}") while True: if stop_event and stop_event.is_set(): break if pause_event and pause_event.is_set(): time.sleep(0.1) continue # 读取头部 (4字节) header = f.read(4) if not header or len(header) < 4: break # 解析头部 packet_type, reserved, data_len = struct.unpack('>BBH', header) # 读取Opus数据 opus_data = f.read(data_len) if not opus_data or len(opus_data) < data_len: break # 解码Opus数据 pcm_data = decoder.decode(opus_data, frame_size) # 将字节转换为numpy数组 audio_array = np.frombuffer(pcm_data, dtype=np.int16) # 播放音频 stream.write(audio_array) except KeyboardInterrupt: print("\n播放已停止") finally: stream.stop() stream.close() print("播放完成") class P3PlayerApp: def __init__(self, root): self.root = root self.root.title("P3 文件简易播放器") self.root.geometry("500x400") self.playlist = [] self.current_index = 0 self.is_playing = False self.is_paused = False self.stop_event = threading.Event() self.pause_event = threading.Event() self.loop_playback = tk.BooleanVar(value=False) # 循环播放复选框的状态 # 创建界面组件 self.create_widgets() def create_widgets(self): # 播放列表 self.playlist_label = tk.Label(self.root, text="播放列表:") self.playlist_label.pack(pady=5) self.playlist_frame = tk.Frame(self.root) self.playlist_frame.pack(fill=tk.BOTH, expand=True, padx=10, pady=5) self.playlist_listbox = tk.Listbox(self.playlist_frame, selectmode=tk.SINGLE) self.playlist_listbox.pack(fill=tk.BOTH, expand=True) # 复选框和移除按钮 self.checkbox_frame = tk.Frame(self.root) self.checkbox_frame.pack(pady=5) self.remove_button = tk.Button(self.checkbox_frame, text="移除文件", command=self.remove_files) self.remove_button.pack(side=tk.LEFT, padx=5) # 循环播放复选框 self.loop_checkbox = tk.Checkbutton(self.checkbox_frame, text="循环播放", variable=self.loop_playback) self.loop_checkbox.pack(side=tk.LEFT, padx=5) # 控制按钮 self.control_frame = tk.Frame(self.root) self.control_frame.pack(pady=10) self.add_button = tk.Button(self.control_frame, text="添加文件", command=self.add_file) self.add_button.grid(row=0, column=0, padx=5) self.play_button = tk.Button(self.control_frame, text="播放", command=self.play) self.play_button.grid(row=0, column=1, padx=5) self.pause_button = tk.Button(self.control_frame, text="暂停", command=self.pause) self.pause_button.grid(row=0, column=2, padx=5) self.stop_button = tk.Button(self.control_frame, text="停止", command=self.stop) self.stop_button.grid(row=0, column=3, padx=5) # 状态标签 self.status_label = tk.Label(self.root, text="未在播放", fg="blue") self.status_label.pack(pady=10) def add_file(self): files = filedialog.askopenfilenames(filetypes=[("P3 文件", "*.p3")]) if files: self.playlist.extend(files) self.update_playlist() def update_playlist(self): self.playlist_listbox.delete(0, tk.END) for file in self.playlist: self.playlist_listbox.insert(tk.END, os.path.basename(file)) # 仅显示文件名 def update_status(self, status_text, color="blue"): """更新状态标签的内容""" self.status_label.config(text=status_text, fg=color) def play(self): if not self.playlist: messagebox.showwarning("警告", "播放列表为空！") return if self.is_paused: self.is_paused = False self.pause_event.clear() self.update_status(f"正在播放：{os.path.basename(self.playlist[self.current_index])}", "green") return if self.is_playing: return self.is_playing = True self.stop_event.clear() self.pause_event.clear() self.current_index = self.playlist_listbox.curselection()[0] if self.playlist_listbox.curselection() else 0 self.play_thread = threading.Thread(target=self.play_audio, daemon=True) self.play_thread.start() self.update_status(f"正在播放：{os.path.basename(self.playlist[self.current_index])}", "green") def play_audio(self): while True: if self.stop_event.is_set(): break if self.pause_event.is_set(): time.sleep(0.1) continue # 检查当前索引是否有效 if self.current_index >= len(self.playlist): if self.loop_playback.get(): # 如果勾选了循环播放 self.current_index = 0 # 回到第一首 else: break # 否则停止播放 file = self.playlist[self.current_index] self.playlist_listbox.selection_clear(0, tk.END) self.playlist_listbox.selection_set(self.current_index) self.playlist_listbox.activate(self.current_index) self.update_status(f"正在播放：{os.path.basename(self.playlist[self.current_index])}", "green") play_p3_file(file, self.stop_event, self.pause_event) if self.stop_event.is_set(): break if not self.loop_playback.get(): # 如果没有勾选循环播放 break # 播放完当前文件后停止 self.current_index += 1 if self.current_index >= len(self.playlist): if self.loop_playback.get(): # 如果勾选了循环播放 self.current_index = 0 # 回到第一首 self.is_playing = False self.is_paused = False self.update_status("播放已停止", "red") def pause(self): if self.is_playing: self.is_paused = not self.is_paused if self.is_paused: self.pause_event.set() self.update_status("播放已暂停", "orange") else: self.pause_event.clear() self.update_status(f"正在播放：{os.path.basename(self.playlist[self.current_index])}", "green") def stop(self): if self.is_playing or self.is_paused: self.is_playing = False self.is_paused = False self.stop_event.set() self.pause_event.clear() self.update_status("播放已停止", "red") def remove_files(self): selected_indices = self.playlist_listbox.curselection() if not selected_indices: messagebox.showwarning("警告", "请先选择要移除的文件！") return for index in reversed(selected_indices): self.playlist.pop(index) self.update_playlist() if __name__ == "__main__": root = tk.Tk() app = P3PlayerApp(root) root.mainloop()