- # -*- coding:utf-8 -*-
- # coding:utf-8
- import os, cv2, subprocess, shutil
- from cv2 import VideoWriter, VideoWriter_fourcc, imread, resize
- from PIL import Image, ImageFont, ImageDraw
- FFMPEG = r'F:\ffmpeg-20190312-d227ed5-win64-static\bin\ffmpeg.exe'
- code_color = (169,169,169) # 颜色 RGB 默认灰色 ,'' 则彩色
- # 像素对应 ascii 码
- #ascii_char = list("$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:oa+>!:+.")
- #ascii_char = ['.',',',':',';','+','*','?','%','S','#','@'][::-1]
- ascii_char = list("MNHQ$OC67+>!:-.")
- # ascii_char = list(".")
- # 将像素转换为 ascii 码
- def get_char(r, g, b, alpha=256):
- if alpha == 0:
- return ''
- length = len(ascii_char)
- gray = int(0.2126 * r + 0.7152 * g + 0.0722 * b)
- unit = (256.0 + 1) / length
- return ascii_char[int(gray / unit)]
- # 将 txt 转换为图片
- def txt2image(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 += get_char(pixel[0], pixel[1], pixel[2], pixel[3])
- else:
- txt += 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
- # self, xy, text, fill = None, font = None, anchor = None,
- # *args, ** kwargs
- if code_color:
- dr.text((y, x), txt[i], fill=code_color) # fill=colors[i] 彩色
- else:
- dr.text((y, x), txt[i], fill=colors[i]) # fill=colors[i] 彩色
- # dr.text((y, x), txt[i], font=font, fill=colors[i])
- y += font_w
- name = file_name
- # print(name + 'changed')
- im_txt.save(name)
- # 将视频拆分成图片
- def video2txt_jpg(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)
- txt2image(str(c) + '.jpg') # 同时转换为 ascii 图
- r, frame = vc.read()
- c += 1
- os.chdir('..')
- return vc
- # 将图片合成视频
- def jpg2video(outfile_name, fps):
- fourcc = 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)):
- # Image.open(str(image)+'.jpg').convert("RGB").save(str(image)+'.jpg')
- frame = cv2.imread(str(image + 1) + '.jpg')
- vw.write(frame)
- # print(str(image + 1) + '.jpg' + 'finished')
- os.chdir('..')
- vw.release()
- # 调用 FFMPEG 获取 mp3 音频文件
- def video2mp3(file_name, outfile_name):
- cmdstr = "-i {0} -f mp3 {1} -y".format(file_name, outfile_name)
- cmd(cmdstr)
- # 合成音频和视频文件
- def video_add_mp3(file_name, mp3_file,outfile_name):
- cmdstr = "-i {0} -i {1} -strict -2 -f mp4 {2} -y".format(file_name, mp3_file, outfile_name)
- cmd(cmdstr)
- # 视频截取
- def vediocut(file_name, outfile_name, start, end):
- cmdstr = "-i {0} -vcodec copy -acodec copy -ss {1} -to {2} {3} -y".format(file_name,start,end,outfile_name)
- cmd(cmdstr)
- # 执行脚本命令
- def cmd(cmdstr):
- cmdstr = FFMPEG + cmdstr
- response = subprocess.call(cmdstr, shell=True, creationflags=0x08000000)
- if response == 1:
- print("ffmpeg 脚本执行失败, 请尝试手动执行:{0}".format(cmdstr))
- # 主函数
- def main(vedio, save=False, iscut=False, start='00:00:00', end='00:00:14'):
- """
- :param vedio: 原视频文件地址
- :param save: 是否保存临时文件 默认不保存
- :param iscut: 是否先对原视频做截取处理 默认不截取
- :param start: 视频截取开始时间点 仅当 iscut=True 时有效
- :param end: 视频截取结束时间点 仅当 iscut=True 时有效
- :return: 输出目标视频文件 vedio.split('.')[0] + '-code.mp4'
- """file_cut = vedio.split('.')[0] +'_cut.mp4'file_mp3 = vedio.split('.')[0] +'.mp3'file_temp_avi = vedio.split('.')[0] +'_temp.avi'outfile_name = vedio.split('.')[0] +'-code.mp4'print(" 开始生成...")
- if iscut:
- print("正在截取视频...")
- vediocut(vedio, file_cut, start, end)
- vedio = file_cut
- print("正在转换代码图片...")
- vc = video2txt_jpg(vedio) # 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...")
- video2mp3(vedio, file_mp3) # 从原视频分离出 音频 mp3
- print("正在转换代码视频...")
- jpg2video(file_temp_avi, FPS) #代码图片转视频
- print("正在合成目标视频...")
- video_add_mp3(file_temp_avi, file_mp3, outfile_name) # 将音频合成到代码视频
- if (not save): # 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))
- if __name__ == '__main__':
- vedio = r"test.mp4"
- main(vedio, save=False, iscut=False, start='00:00:00', end='00:00:14')
- # -*- coding:utf-8 -*-# coding:utf-8import os, cv2, subprocess, shutilfrom cv2 import VideoWriter, VideoWriter_fourcc, imread, resizefrom PIL import Image, ImageFont, ImageDraw
- FFMPEG = r'F:\ffmpeg-20190312-d227ed5-win64-static\bin\ffmpeg.exe'code_color = (169,169,169) # 颜色 RGB 默认灰色 ,'' 则彩色
- # 像素对应 ascii 码 #ascii_char = list("$@B%8&WM#*oahkbdpqwmZO0QLCJUYXzcvunxrjft/\|()1{}[]?-_+~<>i!lI;:oa+>!:+.")#ascii_char = ['.',',',':',';','+','*','?','%','S','#','@'][::-1]#ascii_char = list("MNHQ$OC67+>!:-.")ascii_char = list(".")
- # 将像素转换为 ascii 码 def get_char(r, g, b, alpha=256): if alpha == 0: return '' length = len(ascii_char) gray = int(0.2126 * r + 0.7152 * g + 0.0722 * b) unit = (256.0 + 1) / length return ascii_char[int(gray / unit)]
- # 将 txt 转换为图片 def txt2image(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 += get_char(pixel[0], pixel[1], pixel[2], pixel[3]) else: txt += 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 # self, xy, text, fill = None, font = None, anchor = None, # *args, ** kwargs if code_color: dr.text((y, x), txt[i], fill=code_color) # fill=colors[i] 彩色 else: dr.text((y, x), txt[i], fill=colors[i]) # fill=colors[i] 彩色 # dr.text((y, x), txt[i], font=font, fill=colors[i]) y += font_w
- name = file_name # print(name + 'changed') im_txt.save(name)
- # 将视频拆分成图片 def video2txt_jpg(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) txt2image(str(c) + '.jpg') # 同时转换为 ascii 图 r, frame = vc.read() c += 1 os.chdir('..') return vc
- # 将图片合成视频 def jpg2video(outfile_name, fps): fourcc = 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)): # Image.open(str(image)+'.jpg').convert("RGB").save(str(image)+'.jpg') frame = cv2.imread(str(image + 1) + '.jpg') vw.write(frame) # print(str(image + 1) + '.jpg' + 'finished') os.chdir('..') vw.release()
- # 调用 FFMPEG 获取 mp3 音频文件 def video2mp3(file_name, outfile_name): cmdstr = "-i {0} -f mp3 {1} -y".format(file_name, outfile_name) cmd(cmdstr)
- # 合成音频和视频文件 def video_add_mp3(file_name, mp3_file,outfile_name): cmdstr = "-i {0} -i {1} -strict -2 -f mp4 {2} -y".format(file_name, mp3_file, outfile_name) cmd(cmdstr)
- # 视频截取 def vediocut(file_name, outfile_name, start, end): cmdstr = "-i {0} -vcodec copy -acodec copy -ss {1} -to {2} {3} -y".format(file_name,start,end,outfile_name) cmd(cmdstr)
- # 执行脚本命令 def cmd(cmdstr): cmdstr = FFMPEG + cmdstr response = subprocess.call(cmdstr, shell=True, creationflags=0x08000000) if response == 1: print("ffmpeg 脚本执行失败, 请尝试手动执行:{0}".format(cmdstr))
- # 主函数 def main(vedio, save=False, iscut=False, start='00:00:00', end='00:00:14'): """:param vedio: 原视频文件地址 :param save: 是否保存临时文件 默认不保存 :param iscut: 是否先对原视频做截取处理 默认不截取 :param start: 视频截取开始时间点 仅当 iscut=True 时有效 :param end: 视频截取结束时间点 仅当 iscut=True 时有效 :return: 输出目标视频文件 vedio.split('.')[0] +'-code.mp4'""" file_cut = vedio.split('.')[0] + '_cut.mp4' file_mp3 = vedio.split('.')[0] + '.mp3' file_temp_avi = vedio.split('.')[0] + '_temp.avi' outfile_name = vedio.split('.')[0] + '-code.mp4' print("开始生成...") if iscut: print("正在截取视频...") vediocut(vedio, file_cut, start, end) vedio = file_cut print("正在转换代码图片...") vc = video2txt_jpg(vedio) # 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...") video2mp3(vedio, file_mp3) # 从原视频分离出 音频 mp3 print("正在转换代码视频...") jpg2video(file_temp_avi, FPS) #代码图片转视频 print("正在合成目标视频...") video_add_mp3(file_temp_avi, file_mp3, outfile_name) # 将音频合成到代码视频 if (not save): # 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))
- if __name__ == '__main__': vedio = r"test.mp4" main(vedio, save=False, iscut=False, start='00:00:00', end='00:00:14')
来源: http://www.bubuko.com/infodetail-2989416.html