如何把视频转化代码?
1、需要安装opencv,直接安装 pip install opencv-python
2、需要安装ffmpeg ,直接解压免安装,下载传送门; 将 ffmpeg.exe 的路径复制,替换代码开头的 ffmpeg = r'G:\ffmpeg\bin\ffmpeg.exe‘
二、源代码
复制代码
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: 输入视频文件路径
gray: 输出视频的颜色 True 灰色 False 彩色 默认 True
style: 输出视频的代码风格 可选有 0,1,2,3 种 默认 0
clean: 是否删除临时文件 True 删除 False 不删除 默认 True
cut: 是否先对原视频做截取处理 True 截取 False 不截取 默认 False
start: 视频截取开始时间点, 默认 00:00:00 仅当iscut=True时有效
end: 视频截取结束时间点, 默认 00:00:14 仅当iscut=True时有效
"""
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)] # 像素对应ascii码
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("开始生成...")
if self.cut:
print("正在截取视频...")
self.vediocut(self.vediopath, file_cut, self.cut_start, self.cut_end)
self.vediopath = file_cut
print("正在转换代码图片...")
vc = self.video2txt_jpg(self.vediopath) # 视频转图片,图片转代码图片
FPS = vc.get(cv2.CAP_PROP_FPS) # 获取帧率
vc.release()
print("正在分离音频...")
self.video2mp3(self.vediopath, file_mp3) # 从原视频分离出 音频mp3
print("正在转换代码视频...")
self.jpg2video(file_temp_avi, FPS) # 代码图片转视频
print("正在合成目标视频...")
self.video_add_mp3(file_temp_avi, file_mp3, outfile_name) # 将音频合成到代码视频
if self.clean: # 移除临时文件
print("正在移除临时文件...")
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))
# 将视频拆分成图片
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') # 同时转换为ascii图
r, frame = vc.read()
c += 1
os.chdir('..')
return vc
# 将txt转换为图片
def txt2image(self, file_name):
im = Image.open(file_name).convert('RGB')
# gif拆分后的图像,需要转换,否则报错,由于gif分割后保存的是索引颜色
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","汉仪楷体简.ttf"),18)
font = ImageFont.load_default().font
x = y = 0
# 获取字体的宽高
font_w, font_h = font.getsize(txt[1])
font_h *= 1.37 # 调整后更佳
# ImageDraw为每个ascii码进行上色
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)
# 将像素转换为ascii码
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)]
# 代码图片转视频
@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()
# 调用 ffmpeg 分离音频
@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)
# 调用 ffmpeg 给视频添加音频
@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)
# 调用 ffmpeg 截取视频
@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()
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