moviepy竖屏转横屏

本文已废弃，moviepy 效率真是太慢了，推荐使用 ffmpeg

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from moviepy.editor import *
from skimage.filters import _gaussian


def blur(image):
    return _gaussian.gaussian(image.astype(float), sigma=30)

src = "test.mp4"

# 读取待转换的视频
clip1 = VideoFileClip(src)

# 将视频放大并加蒙版遮罩
tempClip2 = VideoFileClip(src, audio=False, has_mask="True").resize(4)
clip2 = tempClip2.fl_image(blur)

# 将小的视频叠在大视频的居中位置
temp = CompositeVideoClip([clip2, clip1.set_pos("center")])

# 对叠好的视频进行剪切
final = temp.crop(x1=0, x2=clip2.w, y1=(clip2.h - clip1.h) / 2, y2=clip1.h + (clip2.h - clip1.h) / 2)

# 输出编辑完成的视频
final.resize(height=clip1.h).write_videofile("./target.mp4", audio_codec="aac")