如何把視頻轉(zhuǎn)化代碼？

1、需要安裝opencv，直接安裝 pip install opencv-python

2、需要安裝ffmpeg ，直接解壓免安裝，下載傳送門； 將 ffmpeg.exe 的路徑復(fù)制，替換代碼開頭的 ffmpeg = r'G:\ffmpeg\bin\ffmpeg.exe‘

二、源代碼

復(fù)制代碼

import os

import subprocess

import shutil

import cv2

from PIL import Image, ImageFont, ImageDraw

FFMPEG = r'D:\ffmpeg\bin\ffmpeg.exe'

class CodeVideo:

def __init__(self, **kwargs):

"""

:param kwargs:

vediopath: 輸入視頻文件路徑

gray: 輸出視頻的顏色 True 灰色 False 彩色 默認(rèn) True

style: 輸出視頻的代碼風(fēng)格 可選有 0,1,2,3 種 默認(rèn) 0

clean: 是否刪除臨時(shí)文件 True 刪除 False 不刪除 默認(rèn) True

cut: 是否先對(duì)原視頻做截取處理 True 截取 False 不截取 默認(rèn) False

start: 視頻截取開始時(shí)間點(diǎn), 默認(rèn) 00:00:00 僅當(dāng)iscut=True時(shí)有效

end: 視頻截取結(jié)束時(shí)間點(diǎn), 默認(rèn) 00:00:14 僅當(dāng)iscut=True時(shí)有效

"""

self.vediopath = kwargs.get('vediopath')

self.code_color = (169, 169, 169) if kwargs.get('gray', True) else None

self.clean = kwargs.get('clean', True)

self.cut = kwargs.get('cut', False)

self.cut_start = kwargs.get('start', '00:00:00')

self.cut_end = kwargs.get('end', '00:00:14')

self.ascii_char = (

list("MNHQ$OC67)oa+>!:+. "),

list("MNHQ$OC67+>!:-. "),

list("$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:oa+>!:+. "),

['.', ',', ':', ';', '+', '*', '?', '%', 'S', '#', '@'],

)[kwargs.get('style', 0)] # 像素對(duì)應(yīng)ascii碼

def main(self):

file_cut = self.vediopath.split('.')[0] + '_cut.mp4'

file_mp3 = self.vediopath.split('.')[0] + '.mp3'

file_temp_avi = self.vediopath.split('.')[0] + '_temp.avi'

outfile_name = self.vediopath.split('.')[0] + '_code.mp4'

print("開始生成...")

if self.cut:

print("正在截取視頻...")

self.vediocut(self.vediopath, file_cut, self.cut_start, self.cut_end)

self.vediopath = file_cut

print("正在轉(zhuǎn)換代碼圖片...")

vc = self.video2txt_jpg(self.vediopath) # 視頻轉(zhuǎn)圖片，圖片轉(zhuǎn)代碼圖片

FPS = vc.get(cv2.CAP_PROP_FPS) # 獲取幀率

vc.release()

print("正在分離音頻...")

self.video2mp3(self.vediopath, file_mp3) # 從原視頻分離出 音頻mp3

print("正在轉(zhuǎn)換代碼視頻...")

self.jpg2video(file_temp_avi, FPS) # 代碼圖片轉(zhuǎn)視頻

print("正在合成目標(biāo)視頻...")

self.video_add_mp3(file_temp_avi, file_mp3, outfile_name) # 將音頻合成到代碼視頻

if self.clean: # 移除臨時(shí)文件

print("正在移除臨時(shí)文件...")

shutil.rmtree("Cache")

for file in [file_cut, file_mp3, file_temp_avi]:

if os.path.exists(file):

os.remove(file)

print("生成成功：{0}".format(outfile_name))

# 將視頻拆分成圖片

def video2txt_jpg(self, file_name):

vc = cv2.VideoCapture(file_name)

c = 1

if vc.isOpened():

r, frame = vc.read()

if not os.path.exists('Cache'):

os.mkdir('Cache')

os.chdir('Cache')

else:

r = False

while r:

cv2.imwrite(str(c) + '.jpg', frame)

self.txt2image(str(c) + '.jpg') # 同時(shí)轉(zhuǎn)換為ascii圖

r, frame = vc.read()

c += 1

os.chdir('..')

return vc

# 將txt轉(zhuǎn)換為圖片

def txt2image(self, file_name):

im = Image.open(file_name).convert('RGB')

# gif拆分后的圖像，需要轉(zhuǎn)換，否則報(bào)錯(cuò)，由于gif分割后保存的是索引顏色

raw_width = im.width

raw_height = im.height

width = int(raw_width / 6)

height = int(raw_height / 15)

im = im.resize((width, height), Image.NEAREST)

txt = ""

colors = []

for i in range(height):

for j in range(width):

pixel = im.getpixel((j, i))

colors.append((pixel[0], pixel[1], pixel[2]))

if (len(pixel) == 4):

txt += self.get_char(pixel[0], pixel[1], pixel[2], pixel[3])

else:

txt += self.get_char(pixel[0], pixel[1], pixel[2])

txt += '\n'

colors.append((255, 255, 255))

im_txt = Image.new("RGB", (raw_width, raw_height), (255, 255, 255))

dr = ImageDraw.Draw(im_txt)

# font = ImageFont.truetype(os.path.join("fonts","漢儀楷體簡(jiǎn).ttf"),18)

font = ImageFont.load_default().font

x = y = 0

# 獲取字體的寬高

font_w, font_h = font.getsize(txt[1])

font_h *= 1.37 # 調(diào)整后更佳

# ImageDraw為每個(gè)ascii碼進(jìn)行上色

for i in range(len(txt)):

if (txt[i] == '\n'):

x += font_h

y = -font_w

if self.code_color:

dr.text((y, x), txt[i], fill=self.code_color) # fill=colors[i]彩色

else:

dr.text((y, x), txt[i], fill=colors[i]) # fill=colors[i]彩色

y += font_w

im_txt.save(file_name)

# 將像素轉(zhuǎn)換為ascii碼

def get_char(self, r, g, b, alpha=256):

if alpha == 0:

return ''

gray = int(0.2126 * r + 0.7152 * g + 0.0722 * b)

unit = (256.0 + 1) / len(self.ascii_char)

return self.ascii_char[int(gray / unit)]

# 代碼圖片轉(zhuǎn)視頻

@staticmethod

def jpg2video(outfile_name, fps):

fourcc = cv2.VideoWriter_fourcc(*"MJPG")

images = os.listdir('Cache')

im = Image.open('Cache/' + images[0])

vw = cv2.VideoWriter(outfile_name, fourcc, fps, im.size)

os.chdir('Cache')

for image in range(len(images)):

frame = cv2.imread(str(image + 1) + '.jpg')

vw.write(frame)

os.chdir('..')

vw.release()

# 調(diào)用 ffmpeg 分離音頻

@staticmethod

def video2mp3(file_name, outfile_name):

cmdstr = f'{FFMPEG} -i {file_name} -f mp3 {outfile_name} -y'

subprocess.call(cmdstr, shell=True, creationflags=0x08000000)

# 調(diào)用 ffmpeg 給視頻添加音頻

@staticmethod

def video_add_mp3(file_name, mp3_file, outfile_name):

cmdstr = f'{FFMPEG} -i {file_name} -i {mp3_file} -strict -2 -f mp4 {outfile_name} -y'

subprocess.call(cmdstr, shell=True, creationflags=0x08000000)

# 調(diào)用 ffmpeg 截取視頻

@staticmethod

def vediocut(file_name, outfile_name, start, end):

cmdstr = f'{FFMPEG} -i {file_name} -vcodec copy -acodec copy -ss {start} -to {end} {outfile_name} -y'

subprocess.call(cmdstr, shell=True, creationflags=0x08000000)

if __name__ == '__main__':

vediopath = r"C:\Users\Administrator\Desktop\test.mp4"

CodeVideo(vediopath=vediopath).main()