Python做图像处理及视频音频文件分离和合成功能

 import subprocess import imageio import os from PIL import Image def video2mp3(file_name): """ 将视频转为音频 :param file_name: 传入视频文件的路径 :return: """ outfile_name = file_name.split('.')[0] + '.mp3' subprocess.call('ffmpeg -i ' + file_name + ' -f mp3 ' + outfile_name, shell=True) def video_add_mp3(file_name, mp3_file): """ 视频添加音频 :param file_name: 传入视频文件的路径 :param mp3_file: 传入音频文件的路径 :return: """ outfile_name = file_name.split('.')[0] + '-txt.mp4' subprocess.call('ffmpeg -i ' + file_name + ' -i ' + mp3_file + ' -strict -2 -f mp4 ' + outfile_name, shell=True) def compose_gif(file_path): """ 将静态图片转为gif动图 :param file_path: 传入图片的目录的路径 :return: """ img_paths = sorted([int(p[3:-4]) for p in os.listdir(file_path) if os.path.splitext(p)[1] == ".png-600"]) img_paths = img_paths[:int(len(img_paths) / 3.6)] gif_images = [] for path in img_paths: gif_images.append(imageio.imread('{0}/out{1}.png-600'.format(file_path, path))) imageio.mimsave("test.gif", gif_images, fps=30) def compress_png(file_path): """ 将gif动图转为每张静态图片 :param file_path: 传入gif文件的路径 :return: """ img_paths = [p for p in os.listdir(file_path) if os.path.splitext(p)[1] == ".png-600"] for filename in img_paths: with Image.open('{0}/{1}'.format(file_path, filename)) as im: width, height = im.size new_width = 150 new_height = int(new_width * height * 1.0 / width) resized_im = im.resize((new_width, new_height)) output_filename = filename resized_im.save('{0}/{1}'.format(file_path, output_filename)) if __name__ == '__main__': # video2mp3(file_name='data-a.mp4') video_add_mp3(file_name='swap-data-a.mp4', mp3_file='data-a.mp3') # compose_gif(file_path='merged') # compress_png(file_path='merged')