Download video files in bulk using Python and merge them with ffmpeg.

You can use the Python requests library to download video files in batches, and use the os library to call ffmpeg for merging.

First, make sure the requests and ffmpeg libraries are installed. You can install them using the following command:

pip install requests
pip install ffmpeg-python

Then, you can use the following code to complete the operation of downloading and merging video files in bulk:

import requests
import os
import ffmpeg

# 定义视频文件的URL列表
video_urls = [
    'http://example.com/video1.mp4',
    'http://example.com/video2.mp4',
    'http://example.com/video3.mp4',
    # 添加更多的视频URL
]

# 创建保存视频文件的文件夹
os.makedirs('videos', exist_ok=True)

# 批量下载视频文件
for url in video_urls:
    response = requests.get(url)
    filename = os.path.join('videos', url.split('/')[-1])
    with open(filename, 'wb') as f:
        f.write(response.content)

# 使用ffmpeg合并视频文件
input_files = ' '.join([f'videos/{url.split('/')[-1]}' for url in video_urls])
output_file = 'output.mp4'
ffmpeg.input(input_files).output(output_file, c='copy').run()

In the above code, we first define a list of URLs for video files. We then use the requests library to download the video files in bulk and save them to a folder named “videos”.

Finally, we merged the videos using the ffmpeg library. Initially, we created an input file string by concatenating the path of each video file. Then, we specified the output file name as “output.mp4” and used the ‘copy’ parameter to maintain the original encoding of the video.

After running the above code, the video files will be downloaded and merged. The merged video file will be saved in the current working directory, named “output.mp4”.