连接 Python 中的多个视频片段？

Question

I want 2 or more (a varying amount) of videos to be "merged" together (just so one plays after each other)

What I have tried is:

from moviepy.editor import concatenate_videoclips, VideoFileClip

allvideos = list()

for file in os.listdir(".\\files"):
    allvideos.append(VideoFileClip(".\\files\\" + file))

concatenate_videoclips(allvideos).write_videofile(output)

but for some reason, later, the list does not consist of VideoFileClips anymore but rather of Strings containing the Path, which messes up getting the duration of the Clip later.

Is there an alternate way of doing this?

Answer 1

I take this code from the link I found while searching video concatenation from google

def concatenate(video_clip_paths, output_path, method="compose"):
    """Concatenates several video files into one video file
    and save it to `output_path`. Note that extension (mp4, etc.) must be added to `output_path`
    `method` can be either 'compose' or 'reduce':
        `reduce`: Reduce the quality of the video to the lowest quality on the list of `video_clip_paths`.
        `compose`: type help(concatenate_videoclips) for the info"""
    # create VideoFileClip object for each video file
    clips = [VideoFileClip(c) for c in video_clip_paths]
    if method == "reduce":
        # calculate minimum width & height across all clips
        min_height = min([c.h for c in clips])
        min_width = min([c.w for c in clips])
        # resize the videos to the minimum
        clips = [c.resize(newsize=(min_width, min_height)) for c in clips]
        # concatenate the final video
        final_clip = concatenate_videoclips(clips)
    elif method == "compose":
        # concatenate the final video with the compose method provided by moviepy
        final_clip = concatenate_videoclips(clips, method="compose")
    # write the output video file
    final_clip.write_videofile(output_path)

argument parser

if __name__ == "__main__":
    import argparse
    parser = argparse.ArgumentParser(
        description="Simple Video Concatenation script in Python with MoviePy Library")
    parser.add_argument("-c", "--clips", nargs="+",
                        help="List of audio or video clip paths")
    parser.add_argument("-r", "--reduce", action="store_true", 
                        help="Whether to use the `reduce` method to reduce to the lowest quality on the resulting clip")
    parser.add_argument("-o", "--output", help="Output file name")
    args = parser.parse_args()
    clips = args.clips
    output_path = args.output
    reduce = args.reduce
    method = "reduce" if reduce else "compose"
    concatenate(clips, output_path, method)

example

python concatenate_video.py -c zoo.mp4 directed-by-robert.mp4 -o output.mp4

https://www.thepythoncode.com/article/concatenate-video-files-in-python