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本篇文章為大家展示了在python中使用gui怎么實現一個視頻下載功能，內容簡明扼要并且容易理解，絕對能使你眼前一亮，通過這篇文章的詳細介紹希望你能有所收獲。
運行效果：
完整代碼：
# !/usr/bin/python
# -*- coding:utf-8 -*-
# time: 2019/07/02--08:12
__author__ = 'Henry'
'''
項目: B站視頻下載 - GUI版本
版本1: 加密API版,不需要加入cookie,直接即可下載1080p視頻
20190422 - 增加多P視頻單獨下載其中一集的功能
20190702 - 增加視頻多線程下載 速度大幅提升
20190711 - 增加GUI版本,可視化界面,操作更加友好
'''
import requests, time, hashlib, urllib.request, re, json
import imageio
imageio.plugins.ffmpeg.download()
from moviepy.editor import *
import os, sys, threading
from tkinter import *
from tkinter import ttk
from tkinter import StringVar
root=Tk()
start_time = time.time()
# 將輸出重定向到表格
def print(theText):
msgbox.insert(END,theText+'\n')
# 訪問API地址
def get_play_list(start_url, cid, quality):
entropy = 'rbMCKn@KuamXWlPMoJGsKcbiJKUfkPF_8dABscJntvqhRSETg'
appkey, sec = ''.join([chr(ord(i) + 2) for i in entropy[::-1]]).split(':')
params = 'appkey=%s&cid=%s&otype=json&qn=%s&quality=%s&type=' % (appkey, cid, quality, quality)
chksum = hashlib.md5(bytes(params + sec, 'utf8')).hexdigest()
url_api = 'https://interface.bilibili.com/v2/playurl?%s&sign=%s' % (params, chksum)
headers = {
'Referer': start_url, # 注意加上referer
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36'
}
# print(url_api)
html = requests.get(url_api, headers=headers).json()
# print(json.dumps(html))
video_list = []
for i in html['durl']:
video_list.append(i['url'])
# print(video_list)
return video_list
# 下載視頻
'''
urllib.urlretrieve 的回調函數：
def callbackfunc(blocknum, blocksize, totalsize):
@blocknum: 已經下載的數據塊
@blocksize: 數據塊的大小
@totalsize: 遠程文件的大小
'''
def Schedule_cmd(blocknum, blocksize, totalsize):
speed = (blocknum * blocksize) / (time.time() - start_time)
# speed_str = " Speed: %.2f" % speed
speed_str = " Speed: %s" % format_size(speed)
recv_size = blocknum * blocksize
# 設置下載進度條
pervent = recv_size / totalsize
percent_str = "%.2f%%" % (pervent * 100)
download.coords(fill_line1,(0,0,pervent*465,23))
root.update()
pct.set(percent_str)
def Schedule(blocknum, blocksize, totalsize):
speed = (blocknum * blocksize) / (time.time() - start_time)
# speed_str = " Speed: %.2f" % speed
speed_str = " Speed: %s" % format_size(speed)
recv_size = blocknum * blocksize
# 設置下載進度條
f = sys.stdout
pervent = recv_size / totalsize
percent_str = "%.2f%%" % (pervent * 100)
n = round(pervent * 50)
s = ('#' * n).ljust(50, '-')
print(percent_str.ljust(6, ' ') + '-' + speed_str)
f.flush()
time.sleep(2)
# print('\r')
# 字節bytes轉化K\M\G
def format_size(bytes):
try:
bytes = float(bytes)
kb = bytes / 1024
except:
print("傳入的字節格式不對")
return "Error"
if kb >= 1024:
M = kb / 1024
if M >= 1024:
G = M / 1024
return "%.3fG" % (G)
else:
return "%.3fM" % (M)
else:
return "%.3fK" % (kb)
# 下載視頻
def down_video(video_list, title, start_url, page):
num = 1
print('[正在下載P{}段視頻,請稍等...]:'.format(page) + title)
currentVideoPath = os.path.join(sys.path[0], 'bilibili_video', title) # 當前目錄作為下載目錄
for i in video_list:
opener = urllib.request.build_opener()
# 請求頭
opener.addheaders = [
# ('Host', 'upos-hz-mirrorks3.acgvideo.com'), #注意修改host,不用也行
('User-Agent', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:56.0) Gecko/20100101 Firefox/56.0'),
('Accept', '*/*'),
('Accept-Language', 'en-US,en;q=0.5'),
('Accept-Encoding', 'gzip, deflate, br'),
('Range', 'bytes=0-'), # Range 的值要為 bytes=0- 才能下載完整視頻
('Referer', start_url), # 注意修改referer,必須要加的!
('Origin', 'https://www.bilibili.com'),
('Connection', 'keep-alive'),
]
urllib.request.install_opener(opener)
# 創建文件夾存放下載的視頻
if not os.path.exists(currentVideoPath):
os.makedirs(currentVideoPath)
# 開始下載
if len(video_list) > 1:
urllib.request.urlretrieve(url=i, filename=os.path.join(currentVideoPath, r'{}-{}.flv'.format(title, num)),reporthook=Schedule_cmd) # 寫成mp4也行 title + '-' + num + '.flv'
else:
urllib.request.urlretrieve(url=i, filename=os.path.join(currentVideoPath, r'{}.flv'.format(title)),reporthook=Schedule_cmd) # 寫成mp4也行 title + '-' + num + '.flv'
num += 1
# 合并視頻(20190802新版)
def combine_video(title_list):
video_path = os.path.join(sys.path[0], 'bilibili_video') # 下載目錄
for title in title_list:
current_video_path = os.path.join(video_path ,title)
if len(os.listdir(current_video_path)) >= 2:
# 視頻大于一段才要合并
print('[下載完成,正在合并視頻...]:' + title)
# 定義一個數組
L = []
# 遍歷所有文件
for file in sorted(os.listdir(current_video_path), key=lambda x: int(x[x.rindex("-") + 1:x.rindex(".")])):
# 如果后綴名為 .mp4/.flv
if os.path.splitext(file)[1] == '.flv':
# 拼接成完整路徑
filePath = os.path.join(current_video_path, file)
# 載入視頻
video = VideoFileClip(filePath)
# 添加到數組
L.append(video)
# 拼接視頻
final_clip = concatenate_videoclips(L)
# 生成目標視頻文件
final_clip.to_videofile(os.path.join(current_video_path, r'{}.mp4'.format(title)), fps=24, remove_temp=False)
print('[視頻合并完成]' + title)
else:
# 視頻只有一段則直接打印下載完成
print('[視頻合并完成]:' + title)
def do_prepare(inputStart,inputQuality):
# 清空進度條
download.coords(fill_line1,(0,0,0,23))
pct.set('0.00%')
root.update()
# 清空文本欄
msgbox.delete('1.0','end')
start_time = time.time()
# 用戶輸入av號或者視頻鏈接地址
print('*' * 30 + 'B站視頻下載小助手' + '*' * 30)
start = inputStart
if start.isdigit() == True: # 如果輸入的是av號
# 獲取cid的api, 傳入aid即可
start_url = 'https://api.bilibili.com/x/web-interface/view?aid=' + start
else:
# https://www.bilibili.com/video/av46958874/?spm_id_from=333.334.b_63686965665f7265636f6d6d656e64.16
start_url = 'https://api.bilibili.com/x/web-interface/view?aid=' + re.search(r'/av(\d+)/*', start).group(1)
# 視頻質量
# <accept_format><![CDATA[flv,flv720,flv480,flv360]]></accept_format>
# <accept_description><![CDATA[高清 1080P,高清 720P,清晰 480P,流暢 360P]]></accept_description>
# <accept_quality><![CDATA[80,64,32,16]]></accept_quality>
quality = inputQuality
# 獲取視頻的cid,title
headers = {
'User-Agent': 'Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/55.0.2883.87 Safari/537.36'
}
html = requests.get(start_url, headers=headers).json()
data = html['data']
cid_list = []
if '?p=' in start:
# 單獨下載分P視頻中的一集
p = re.search(r'\?p=(\d+)',start).group(1)
cid_list.append(data['pages'][int(p) - 1])
else:
# 如果p不存在就是全集下載
cid_list = data['pages']
# print(cid_list)
# 創建線程池
threadpool = []
title_list = []
for item in cid_list:
cid = str(item['cid'])
title = item['part']
title = re.sub(r'[\/\\:*?"<>|]', '', title) # 替換為空的
print('[下載視頻的cid]:' + cid)
print('[下載視頻的標題]:' + title)
title_list.append(title)
page = str(item['page'])
start_url = start_url + "/?p=" + page
video_list = get_play_list(start_url, cid, quality)
start_time = time.time()
# down_video(video_list, title, start_url, page)
# 定義線程
th = threading.Thread(target=down_video, args=(video_list, title, start_url, page))
# 將線程加入線程池
threadpool.append(th)
# 開始線程
for th in threadpool:
th.start()
# 等待所有線程運行完畢
for th in threadpool:
th.join()
# 最后合并視頻
combine_video(title_list)
end_time = time.time() # 結束時間
print('下載總耗時%.2f秒,約%.2f分鐘' % (end_time - start_time, int(end_time - start_time) / 60))
# 如果是windows系統，下載完成后打開下載目錄
currentVideoPath = os.path.join(sys.path[0], 'bilibili_video') # 當前目錄作為下載目錄
if (sys.platform.startswith('win')):
os.startfile(currentVideoPath)
def thread_it(func, *args):
'''將函數打包進線程'''
# 創建
t = threading.Thread(target=func, args=args)
# 守護 !!!
t.setDaemon(True)
# 啟動
t.start()
if __name__ == "__main__":
# 設置標題
root.title('B站視頻下載小助手-GUI')
# 設置ico
root.iconbitmap('./Pic/favicon.ico')
# 設置Logo
photo = PhotoImage(file='./Pic/logo.png')
logo = Label(root,image=photo)
logo.pack()
# 各項輸入欄和選擇框
inputStart = Entry(root,bd=4,width=600)
labelStart=Label(root,text="請輸入您要下載的B站av號或者視頻鏈接地址:") # 地址輸入
labelStart.pack(anchor="w")
inputStart.pack()
labelQual = Label(root,text="請選擇您要下載視頻的清晰度") # 清晰度選擇
labelQual.pack(anchor="w")
inputQual = ttk.Combobox(root,state="readonly")
# 可供選擇的表
inputQual['value']=('1080P','720p','480p','360p')
# 對應的轉換字典
keyTrans=dict()
keyTrans['1080P']='80'
keyTrans['720p']='64'
keyTrans['480p']='32'
keyTrans['360p']='16'
# 初始值為720p
inputQual.current(1)
inputQual.pack()
confirm = Button(root,text="開始下載",command=lambda:thread_it(do_prepare,inputStart.get(), keyTrans[inputQual.get()] ))
msgbox = Text(root)
msgbox.insert('1.0',"對于單P視頻:直接傳入B站av號或者視頻鏈接地址\n(eg: 49842011或者https://www.bilibili.com/video/av49842011)\n對于多P視頻:\n1.下載全集:直接傳入B站av號或者視頻鏈接地址\n(eg: 49842011或者https://www.bilibili.com/video/av49842011)\n2.下載其中一集:傳入那一集的視頻鏈接地址\n(eg: https://www.bilibili.com/video/av19516333/?p=2)")
msgbox.pack()
download=Canvas(root,width=465,height=23,bg="white")
# 進度條的設置
labelDownload=Label(root,text="下載進度")
labelDownload.pack(anchor="w")
download.pack()
fill_line1 = download.create_rectangle(0, 0, 0, 23, width=0, fill="green")
pct=StringVar()
pct.set('0.0%')
pctLabel = Label(root,textvariable=pct)
pctLabel.pack()
root.geometry("600x800")
confirm.pack()
# GUI主循環
root.mainloop()
上述內容就是在python中使用gui怎么實現一個視頻下載功能，你們學到知識或技能了嗎？如果還想學到更多技能或者豐富自己的知識儲備，歡迎關注億速云行業資訊頻道。
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