MoviePy – 在视频剪辑的同时更改图像和时间

在本文中，我们将看到如何在 MoviePy 中同时更改视频文件剪辑的显示帧和时间线。 MoviePy 是一个用于视频编辑的Python模块，可用于视频和 GIF 的基本操作。我们使用fl_image方法更改显示帧，使用fl_time方法更改时间，尽管我们可以同时执行这些任务。

In order to do this we will use fl method with the VideoFileClip object

Syntax : clip.fl(method)

Argument : It takes time method as argument

Return : It returns VideoFileClip object

下面是实现

# Import everything needed to edit video clips
from moviepy.editor import *
  
   
# loading video dsa gfg intro video
clip = VideoFileClip("dsa_geek.webm")
   
# getting only first 5 seconds
clip = clip.subclip(0, 5)
  
def scroll(get_frame, t):
    """
    This function returns a 'region' of the current frame.
    The position of this region depends on the time.
    """
    frame = get_frame(t)
    frame_region = frame[int(t):int(t)+360, :]
    return frame_region
  
# alter time and frame
final = clip.fl( scroll )
  
# showing final clip
final.ipython_display()

输出 ：

Moviepy - Building video __temp__.mp4.
Moviepy - Writing video __temp__.mp4

                                                                                                                       
Moviepy - Done !
Moviepy - video ready __temp__.mp4

另一个例子

# Import everything needed to edit video clips
from moviepy.editor import *
  
# loading video gfg
clip = VideoFileClip("geeks.mp4")
  
  
# getting duration of the video
duration = clip.duration
  
def scroll(get_frame, t):
    """
    This function returns a 'region' of the current frame.
    The position of this region depends on the time.
    """
    frame = get_frame(t)
    frame_region = frame[int(t):int(t)+360, :]
    return frame_region
  
# alter time and frame
final = clip.fl( scroll )
  
# showing final clip
final.ipython_display()

输出 ：

Duration : 10.98
Moviepy - Building video __temp__.mp4.
MoviePy - Writing audio in __temp__TEMP_MPY_wvf_snd.mp3
                                                                                                                       
MoviePy - Done.
Moviepy - Writing video __temp__.mp4

                                                                                                                       
Moviepy - Done !
Moviepy - video ready __temp__.mp4