This is the 11th day of my participation in the August More Text Challenge. For details, see:August is more challenging
preface
Video placement B station: you can greatly watch by yourself!! Audio video: Video
Data source: Official website of League of Legends Development environment: Win10, Python3.7 Development tool: PyCharm
Image data collection
The crawler obtains all the skin data from the official website. The crawler is relatively simple and will not be introduced too much
Crawler analysis:
Get all hero ID data
Retrieve all hero image data based on the ID request hero detail JSON data
Send an asynchronous request to an image
#! /usr/bin/env python # -*- coding: utf-8 -*- # @Author : BaiChuan # @File : lol_skin_spider.py import requests import asyncio import aiohttp import time class Crawl_Image: def __init__(self): self.url = 'https://game.gtimg.cn/images/lol/act/img/js/heroList/hero_list.js' self.url1 = "https://game.gtimg.cn/images/lol/act/img/js/hero/{}.js" self.path = r'E:\python_project\vip_course\lol_video\skins' Self. headers = {'user-agent': 'Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML like Gecko) Chrome/67.0.3396.99 Safari/537.36',} async def get_image(self, url): Async with AIohttp.clientSession () as session: response = await session.get(url) content = await response.read() return content async def download_image(self, image): html = await self.get_image(image[0]) with open(self.path + "\\" + image[1] + '.jpg', 'wb') as f: Print (format(image[1])) def run(self): hero_list = requests.get(self.url, headers=self.headers).json() print(hero_list) for hero in hero_list['hero']: heroId = hero['heroId'] skins = requests.get(self.url1.format(heroId)).json()['skins'] task = [asyncio.ensure_future(self.download_image((skin['mainImg'], Skin ['name'])) for skin in skins] loop = asyncio.get_event_loop() # Execute coroutine loop __name__ == '__main__': crawl_image = Crawl_Image() crawl_image.run()Copy the code
The asynchronous addition of the crawler based on the coroutine will have a timeout exception, it is good to catch the timeout exception handling catch. Basically, you get these anomalies
asyncio.TimeoutError
aiohttp.client_exceptions.ServerDisconnectedError
aiohttp.client_exceptions.InvalidURL
aiohttp.client_exceptions.ClientConnectorError
Composite video
Synthesize all the images through CV2
#! /usr/bin/env python # -*- coding: utf-8 -*- # @Author : BaiChuan # @File : Make_video. py import cv2 import OS import numpy as NP Video_dir = 'result.mp4' # frame rate FPS = 1 # VideoWriter_fourcc('m','p', '4.jpg', 'v') # videoMake = cv2.videowriter (video_dir, fourcc, FPS, Img_files = os.listdir(r 'e :\python_project\vip_course\lol_video\skins') for I in img_files: img_path = r'E:\python_project\vip_course\lol_video\skins' + '\\' + i print(img_path) frame = Print (frame) frame = cv2.resize(frame, uint3) Videomake.write (frame) # Write into the video videomake.release () # Release resourcesCopy the code
Once done, the speed of the image can be adjusted according to the frame rate
Add sound to video
The final step is to add sound effects to the video. The addition of sound requires the FFmpeg tool which is available privately
import subprocess
inmp4 = 'result.mp4'
inmp3 = 'Legends_Never_Die.mp3'
save_data = r'E:\python_project\vip_course\lol_video\data.mp4'
cmd=f'ffmpeg -i {inmp4} -i {inmp3} -codec copy ' + save_data
subprocess.call(cmd, shell=True)
Copy the code
That’s it ！！！！！
I am white and white I, an app girl who likes to share knowledge ❤️ [this post was written by my colleague Pak 汌 and posted to Nuggets with permission]
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