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pygame编写音乐播放器的实现代码示例

看: 1158次  时间：2021-02-15  分类 : python教程

1、准备工作

ide：pycharm
python：3.7
三方包：pygame、pyinstaller、mutagen
几首mp3格式的歌

2、开始

2.1 设计说明

1、包含 上一首、下一首、暂停/播放、快进/快退、显示当前播放的歌曲名称、显示播放进度条
2、使用pygame.mixer
3、随机播放磁盘某个目录及其子目录下的mp3文件
4、上一首、下一首用随机选择choice(list) 实现
5、进度条用按照一定速度移动进度图片来实现，过程中处理暂停、快进
6、歌曲快进播放用pygame.mixer.music.play(0,d_song_time) 实现
7、暂停用pygame.mixer.music.pause() 实现
8、播放用pygame.mixer.music.unpause() 实现
9、用mutagen.mp3来获取mp3信息

2.2 代码逻辑

收集某个目录下的所有mp3

# 收集某个目录及子目录下的MP3格式的文件
# 返回歌曲路径、歌曲时长
# [['E:\\musics\\Mirror_Yohee_128K.mp3', 236], ['E:\\musics\\over here_Nobigdyl_128K.mp3', 188], ['E:\\musics\\尘_薛之谦_128K.mp3', 282], ['E:\\musics\\aaa\\尘_薛之谦_128K.mp3', 282]]
def collect_songs(fidir):
  musics =[]
  for root, dirs, files in os.walk(fidir):
    for file in files:
      tmp =[]
      if file.endswith('mp3'):
        file = os.path.join(root,file)
        song = MP3(file)
        duration = round(song.info.length)
        tmp.append(file)
        tmp.append(duration)
        musics.append(tmp)
  return musics

显示歌曲名称

# 把歌曲名字显示在播放器上
def draw_song_name(music):
  # 取歌曲名
  music_name = music[0].split("\\")[-1]
  # print(music_name)
  wbk_obj = font_obj.render(music_name, True, (0, 255, 255))
  k_obj = wbk_obj.get_rect()
  k_obj.center = (340, 200)
  screen.blit(wbk_obj, k_obj)
  pygame.display.update()

播放歌曲

# 随机播放一首歌
def sing_a_song(musics):
  # 随机选择一首音乐
  music = choice(musics)
  print(type(musics))
  pygame.mixer.music.load(music[0])
  pygame.mixer.music.play()
  print('开始播放：%s -- %s秒'%(music[0] , str(music[1])))
  return music

显示播放进度

# 播放进度显示
def move(current_time,start_time,pause_duration_time,c_music):
  if pause_end_time == 0 and pause_start_time != 0:
    duration_time = round(pause_start_time - start_time - pause_duration_time)
  else:
    duration_time = round(current_time - start_time - pause_duration_time)
  song_total_time = c_music[1]
  speed = (end_x-begin_x)/song_total_time
  current_x = begin_x + duration_time*speed
  try:
    screen.blit(dian,(current_x,148))
    pygame.display.update()
  except:
    print(current_time)
    print(start_time)
    print(pause_duration_time)
    exit()

快进快退功能

# 快进快退功能
def kuaijin(jindu_x,c_music):
  # 要跳转到的距离d_x
  d_x = jindu_x - begin_x
  song_total_time = c_music[1]
  # 要跳转到的时间d_song_time
  d_song_time = round(song_total_time*(d_x/560),1)
  # 将歌曲快进到d_song_time
  pygame.mixer.music.play(0,d_song_time)

画播放控件

# 画播放控件
def draw_kongjian(is_sing,is_pause):
  # 画进度条
  # 画一条宽度为2的线，y高度为149，x从40到600,颜色为(0,100,100)
  pygame.draw.line(screen, (0, 100, 100), (40, 149), (600, 149), 2)
  # 画播放、暂停按钮
  # 先画圆边框，半径20
  pygame.draw.circle(screen, (0, 255, 255), (x + 80, 100), 20, 2)
  # 画三角形，开始播放
  pygame.draw.line(screen, (0, 255, 255), (x + 73.7, 107.5), (x + 73.7, 93), 2) # 竖线
  # 如果正在播放且没有暂停
  if is_sing and not is_pause:
    # 隐藏三角形
    pygame.draw.line(screen, (0, 89, 115), (x + 73.7, 107.5), (x + 87.3, 100), 2)
    pygame.draw.line(screen, (0, 89, 115), (x + 73.7, 93), (x + 87.3, 100), 2)
    # 显示第二条竖线
    pygame.draw.line(screen,(0,255,255),(x+83.7,107.5),(x+83.7,93),2)
  else:
    # 隐藏第二条竖线
    pygame.draw.line(screen, (0, 89, 115), (x + 83.7, 107.5), (x + 83.7, 93), 2)
    # 显示三角形
    pygame.draw.line(screen,(0,255,255),(x+73.7,107.5),(x+87.3,100),2)
    pygame.draw.line(screen,(0,255,255),(x+73.7,93),(x+87.3,100),2)

  # 画上一首按钮
  pygame.draw.line(screen, (0, 255, 255), (x - 10, 110), (x - 10, 90), 2)
  pygame.draw.line(screen, (0, 255, 255), (x - 10, 100), (x + 10, 115), 2)
  pygame.draw.line(screen, (0, 255, 255), (x - 10, 100), (x + 10, 85), 2)
  pygame.draw.line(screen, (0, 255, 255), (x + 10, 115), (x + 10, 85), 2)

  # 画下一首按钮
  pygame.draw.line(screen, (0, 255, 255), (x + 170, 110), (x + 170, 90), 2)
  pygame.draw.line(screen, (0, 255, 255), (x + 170, 100), (x + 150, 115), 2)
  pygame.draw.line(screen, (0, 255, 255), (x + 170, 100), (x + 150, 85), 2)
  pygame.draw.line(screen, (0, 255, 255), (x + 150, 115), (x + 150, 85), 2)

主逻辑

1、画界面
2、如果没有在播放音乐，播放之
3、如果正在播放音乐，刷新播放进度
4、点击了上一首的处理
5、点击了暂停/播放的处理
6、点击了下一首的处理
7、快进/快退的处理

while True:
  # 第一步画背景
  screen.fill((0, 0, 0)) # ----------------新添加
  # 第二步添加背景图片
  bg = pygame.image.load(music_bg)
  screen.blit(bg, (0, 0))
  # 第四步，画控件
  draw_kongjian(is_sing,is_pause)

  # print("status:-------" + str(pygame.mixer.music.get_busy()))
  # 如果正在播放音乐，有bug == 当暂停后返回依旧是1
  if pygame.mixer.music.get_busy() == 1:
    is_sing = True
  else:
    is_sing = False

  # 如果没有在播放音乐
  if not is_sing:
    # 第五步，开始唱歌
    c_music = sing_a_song(musics)
    # 记录开始播放时间
    start_time = time.time()
    # 暂停时长置为0
    pause_start_time = pause_end_time = pause_duration_time = 0
    # 进度条开始位置重置为40
    begin_x = 40
    # 第六步，显示歌名
    draw_song_name(c_music)
    # 更改播放状态
    is_sing = not is_sing
  # 如果正在唱歌
  else:
    # 第六步，显示歌名
    draw_song_name(c_music)
    current_time = time.time()
    move(current_time, start_time, pause_duration_time, c_music)


  for event in pygame.event.get():
    if event.type == QUIT:
      pygame.quit()
      exit()
    if event.type == MOUSEBUTTONDOWN:
      # 如果点击了鼠标左键，取到当前鼠标的坐标
      pressed_array = pygame.mouse.get_pressed()
      if pressed_array[0] == 1:
        mouse_x, mouse_y = event.pos
        print('点击了左键，位置为(%d,%d)'%(mouse_x,mouse_y))
        # 判断点击了哪个按钮
        if 80 < mouse_y < 120:
          if x - 5 < mouse_x < x + 15:
            # 点击了上一首
            c_music = sing_a_song(musics)
            is_pause = False
            is_kuaijin = False
            # 记录开始时间
            start_time = time.time()
            # 暂停时长置为0
            pause_start_time = pause_end_time = pause_duration_time = 0
            # 进度条开始位置置为40
            begin_x = 40
            # 第六步，显示歌名
            draw_song_name(c_music)
            print('点击了上一首')
          elif x+60 < mouse_x < x+100:
            # 修改是否暂停的状态
            is_pause = not is_pause
            # 如果没有暂停
            if not is_pause:
              # 开始播放
              pygame.mixer.music.unpause()
              # 记录结束暂定时间
              pause_end_time = time.time()
              # 计算暂停时长
              pause_duration_time = pause_duration_time + pause_end_time - pause_start_time
              # 暂停结束，暂停结束开始时间均置为0
              pause_end_time = pause_start_time = 0
            # 如果暂停了
            else:
              # 暂停播放
              pygame.mixer.music.pause()
              # 记录开始暂定时间
              pause_start_time = time.time()

            print('点击了暂停')
          elif x+145 < mouse_x < x+170:
            # 点击了下一首
            c_music = sing_a_song(musics)
            is_pause = False
            is_kuaijin = False
            # 记录开始时间
            start_time = time.time()
            # 暂停时长置为0
            pause_start_time = pause_end_time = pause_duration_time =0
            # 进度条开始位置置为40
            begin_x = 40
            # 第六步，显示歌名
            draw_song_name(c_music)
            print('点击了下一首')
        # 如果点了进度条的某个位置
        elif 155> mouse_y >145:
          kuaijin(mouse_x,c_music)
          begin_x = mouse_x
          pause_end_time = pause_start_time = pause_duration_time = 0
          move(current_time,start_time,pause_duration_time,c_music)
          is_kuaijin = True
          print("快进")

    pygame.display.update()

 3、效果图

刺猬牛逼！！！

4、完整代码

#-*- coding: utf-8 -*-
import os,time,sys
from sys import exit
import pygame
from pygame.locals import *
from mutagen.mp3 import MP3
from random import choice


def rp(relative_path):
  """ Get absolute path to resource, works for dev and for PyInstaller """
  try:
    # PyInstaller creates a temp folder and stores path in _MEIPASS
    base_path = sys._MEIPASS
  except Exception:
    base_path = os.path.abspath(".")

  return os.path.join(base_path, relative_path)

pygame.init()
screen = pygame.display.set_mode((640, 480), 0, 32)
pygame.display.set_caption("music")
# 初始化音乐播放器
pygame.mixer.init()
# 背景图片
music_bg = rp(os.path.join('src','music_bg.jpg'))
# 进度点图片
dian_filename = rp(os.path.join('src','dian.jpg'))
dian = pygame.image.load(dian_filename)
# 字体
font_obj = pygame.font.Font('C:\Windows\Fonts\simsun.ttc',20)
# 偏移量基础值
x = 80
# 进度条开始x坐标
begin_x = 40
# 进度条结束x坐标
end_x = 600
# 是否正在播放歌曲，默认未播放
is_sing = False
# 是否暂停，默认未暂停
is_pause = False
# 是否快进了
is_kuaijin = False
# 快进后x坐标
jindu_x = -1
# 定义当前歌曲变量
global c_music
# 定义歌曲开始播放时间、当前时间、开始暂停时间、结束暂停时间
global start_time, current_time, pause_start_time, pause_end_time,pause_duration_time
pause_start_time =0
pause_end_time =0
pause_duration_time =0




# 把歌曲名字显示在播放器上
def draw_song_name(music):
  # 取歌曲名
  music_name = music[0].split("\\")[-1]
  # print(music_name)
  wbk_obj = font_obj.render(music_name, True, (0, 255, 255))
  k_obj = wbk_obj.get_rect()
  k_obj.center = (340, 200)
  screen.blit(wbk_obj, k_obj)
  pygame.display.update()


# 收集某个目录及子目录下的MP3格式的文件
# 返回歌曲路径、歌曲时长
# [['E:\\musics\\Mirror_Yohee_128K.mp3', 236], ['E:\\musics\\over here_Nobigdyl_128K.mp3', 188], ['E:\\musics\\尘_薛之谦_128K.mp3', 282], ['E:\\musics\\aaa\\尘_薛之谦_128K.mp3', 282]]
def collect_songs(fidir):
  musics =[]
  for root, dirs, files in os.walk(fidir):
    for file in files:
      tmp =[]
      if file.endswith('mp3'):
        file = os.path.join(root,file)
        song = MP3(file)
        duration = round(song.info.length)
        tmp.append(file)
        tmp.append(duration)
        musics.append(tmp)
  return musics

musics = collect_songs('E:\\musics')
print(musics)

# 随机播放一首歌
def sing_a_song(musics):
  # 随机选择一首音乐
  music = choice(musics)
  print(type(musics))
  pygame.mixer.music.load(music[0])
  pygame.mixer.music.play()
  print('开始播放：%s -- %s秒'%(music[0] , str(music[1])))
  return music


# 画代表当前进度的圆点
# 画一个直径为5个圆点，放在100,150的位置，颜色为(0,255,255)
# dian = pygame.draw.circle(screen,(0,255,255),(begin_x,150),6)


# 画播放控件
def draw_kongjian(is_sing,is_pause):
  # 画进度条
  # 画一条宽度为2的线，y高度为149，x从40到600,颜色为(0,100,100)
  pygame.draw.line(screen, (0, 100, 100), (40, 149), (600, 149), 2)
  # 画播放、暂停按钮
  # 先画圆边框，半径20
  pygame.draw.circle(screen, (0, 255, 255), (x + 80, 100), 20, 2)
  # 画三角形，开始播放
  pygame.draw.line(screen, (0, 255, 255), (x + 73.7, 107.5), (x + 73.7, 93), 2) # 竖线
  # 如果正在播放且没有暂停
  if is_sing and not is_pause:
    # 隐藏三角形
    pygame.draw.line(screen, (0, 89, 115), (x + 73.7, 107.5), (x + 87.3, 100), 2)
    pygame.draw.line(screen, (0, 89, 115), (x + 73.7, 93), (x + 87.3, 100), 2)
    # 显示第二条竖线
    pygame.draw.line(screen,(0,255,255),(x+83.7,107.5),(x+83.7,93),2)
  else:
    # 隐藏第二条竖线
    pygame.draw.line(screen, (0, 89, 115), (x + 83.7, 107.5), (x + 83.7, 93), 2)
    # 显示三角形
    pygame.draw.line(screen,(0,255,255),(x+73.7,107.5),(x+87.3,100),2)
    pygame.draw.line(screen,(0,255,255),(x+73.7,93),(x+87.3,100),2)

  # 画上一首按钮
  pygame.draw.line(screen, (0, 255, 255), (x - 10, 110), (x - 10, 90), 2)
  pygame.draw.line(screen, (0, 255, 255), (x - 10, 100), (x + 10, 115), 2)
  pygame.draw.line(screen, (0, 255, 255), (x - 10, 100), (x + 10, 85), 2)
  pygame.draw.line(screen, (0, 255, 255), (x + 10, 115), (x + 10, 85), 2)

  # 画下一首按钮
  pygame.draw.line(screen, (0, 255, 255), (x + 170, 110), (x + 170, 90), 2)
  pygame.draw.line(screen, (0, 255, 255), (x + 170, 100), (x + 150, 115), 2)
  pygame.draw.line(screen, (0, 255, 255), (x + 170, 100), (x + 150, 85), 2)
  pygame.draw.line(screen, (0, 255, 255), (x + 150, 115), (x + 150, 85), 2)

# 播放进度显示
def move(current_time,start_time,pause_duration_time,c_music):
  if pause_end_time == 0 and pause_start_time != 0:
    duration_time = round(pause_start_time - start_time - pause_duration_time)
  else:
    duration_time = round(current_time - start_time - pause_duration_time)
  song_total_time = c_music[1]
  speed = (end_x-begin_x)/song_total_time
  current_x = begin_x + duration_time*speed
  try:
    screen.blit(dian,(current_x,148))
    pygame.display.update()
  except:
    print(current_time)
    print(start_time)
    print(pause_duration_time)
    exit()

# 快进快退功能
def kuaijin(jindu_x,c_music):
  # 要跳转到的距离d_x
  d_x = jindu_x - begin_x
  song_total_time = c_music[1]
  # 要跳转到的时间d_song_time
  d_song_time = round(song_total_time*(d_x/560),1)
  # 将歌曲快进到d_song_time
  pygame.mixer.music.play(0,d_song_time)




while True:
  # 第一步画背景
  screen.fill((0, 0, 0)) # ----------------新添加
  # 第二步添加背景图片
  bg = pygame.image.load(music_bg)
  screen.blit(bg, (0, 0))
  # 第四步，画控件
  draw_kongjian(is_sing,is_pause)

  # print("status:-------" + str(pygame.mixer.music.get_busy()))
  # 如果正在播放音乐，有bug == 当暂停后返回依旧是1
  if pygame.mixer.music.get_busy() == 1:
    is_sing = True
  else:
    is_sing = False

  # 如果没有在播放音乐
  if not is_sing:
    # 第五步，开始唱歌
    c_music = sing_a_song(musics)
    # 记录开始播放时间
    start_time = time.time()
    # 暂停时长置为0
    pause_start_time = pause_end_time = pause_duration_time = 0
    # 进度条开始位置重置为40
    begin_x = 40
    # 第六步，显示歌名
    draw_song_name(c_music)
    # 更改播放状态
    is_sing = not is_sing
  # 如果正在唱歌
  else:
    # 第六步，显示歌名
    draw_song_name(c_music)
    current_time = time.time()
    move(current_time, start_time, pause_duration_time, c_music)


  for event in pygame.event.get():
    if event.type == QUIT:
      pygame.quit()
      exit()
    if event.type == MOUSEBUTTONDOWN:
      # 如果点击了鼠标左键，取到当前鼠标的坐标
      pressed_array = pygame.mouse.get_pressed()
      if pressed_array[0] == 1:
        mouse_x, mouse_y = event.pos
        print('点击了左键，位置为(%d,%d)'%(mouse_x,mouse_y))
        # 判断点击了哪个按钮
        if 80 < mouse_y < 120:
          if x - 5 < mouse_x < x + 15:
            # 点击了上一首
            c_music = sing_a_song(musics)
            is_pause = False
            is_kuaijin = False
            # 记录开始时间
            start_time = time.time()
            # 暂停时长置为0
            pause_start_time = pause_end_time = pause_duration_time = 0
            # 进度条开始位置置为40
            begin_x = 40
            # 第六步，显示歌名
            draw_song_name(c_music)
            print('点击了上一首')
          elif x+60 < mouse_x < x+100:
            # 修改是否暂停的状态
            is_pause = not is_pause
            # 如果没有暂停
            if not is_pause:
              # 开始播放
              pygame.mixer.music.unpause()
              # 记录结束暂定时间
              pause_end_time = time.time()
              # 计算暂停时长
              pause_duration_time = pause_duration_time + pause_end_time - pause_start_time
              # 暂停结束，暂停结束开始时间均置为0
              pause_end_time = pause_start_time = 0
            # 如果暂停了
            else:
              # 暂停播放
              pygame.mixer.music.pause()
              # 记录开始暂定时间
              pause_start_time = time.time()

            print('点击了暂停')
          elif x+145 < mouse_x < x+170:
            # 点击了下一首
            c_music = sing_a_song(musics)
            is_pause = False
            is_kuaijin = False
            # 记录开始时间
            start_time = time.time()
            # 暂停时长置为0
            pause_start_time = pause_end_time = pause_duration_time =0
            # 进度条开始位置置为40
            begin_x = 40
            # 第六步，显示歌名
            draw_song_name(c_music)
            print('点击了下一首')
        # 如果点了进度条的某个位置
        elif 155> mouse_y >145:
          kuaijin(mouse_x,c_music)
          begin_x = mouse_x
          pause_end_time = pause_start_time = pause_duration_time = 0
          move(current_time,start_time,pause_duration_time,c_music)
          is_kuaijin = True
          print("快进")

    pygame.display.update()

5、打包为exe

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