【python3】将视频转换为代码视频
一、环境准备
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
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()
