PythonAnywhere部署Telegram Bot遇MoviePy视频帧读取错误求助

本地运行Python Telegram Bot脚本完全正常，但部署到PythonAnywhere平台后，执行视频生成操作时触发错误：MoviePy无法读取视频文件/home/AlisterK/video_clips/Video 2023-01-10 18 45 07.mp4的第一帧，提示可能文件损坏或FFmpeg版本过时。已尝试更新FFmpeg和MoviePy的多个版本，且确认视频文件未损坏，但问题仍未解决。

相关代码如下：

def generate_video(audio_path):
    input_folder = '/home/AlisterK/video_clips'  # Replace with your folder path
    output_file = '/home/AlisterK/output_combined_video.mp4'
    clip_duration = 3  # Duration of each clip in seconds
    num_clips = 10     # Number of video clips to select and combine

    width = 1080  # Replace with your desired width
    height = 1920  # Replace with your desired height

    video_clips = random_files_in_folder(input_folder, '.mp4', num_clips)

    clips = [VideoFileClip(os.path.join(input_folder, clip_file)).subclip(0, clip_duration) for clip_file in video_clips]
    standardized_clips = [clip.resize((width, height)) for clip in clips]  # Ensure consistent resolutions

    final_clip = concatenate_videoclips(standardized_clips)

    final_audio = AudioFileClip(audio_path)

• 手动指定FFmpeg路径：PythonAnywhere上MoviePy可能无法自动识别FFmpeg位置，在代码开头添加路径配置：

  from moviepy.config import change_settings
  change_settings({"FFMPEG_BINARY": "/usr/bin/ffmpeg"})
  

  可通过控制台执行which ffmpeg确认FFmpeg实际路径。

• 处理文件名空格：视频文件名含空格可能导致路径解析异常，可重命名文件去掉空格，或用shlex.quote()处理路径：

  import shlex
  clips = [VideoFileClip(shlex.quote(os.path.join(input_folder, clip_file))).subclip(0, clip_duration) for clip_file in video_clips]
  

• 转码视频到兼容编码：本地支持的编码在PythonAnywhere环境中可能不兼容，用FFmpeg将视频转码为H.264标准编码：
  控制台执行命令：

  ffmpeg -i "/home/AlisterK/video_clips/Video 2023-01-10 18 45 07.mp4" -c:v libx264 -crf 23 -c:a aac "/home/AlisterK/video_clips/converted_Video_2023-01-10_18_45_07.mp4"
  

  之后用转码后的文件测试。

• 添加错误调试信息：在代码中加入异常捕获，打印详细错误和FFmpeg执行信息：

  import traceback
  try:
      clips = [VideoFileClip(os.path.join(input_folder, clip_file)).subclip(0, clip_duration) for clip_file in video_clips]
  except Exception as e:
      for clip_file in video_clips:
          try:
              VideoFileClip(os.path.join(input_folder, clip_file)).subclip(0, clip_duration)
          except Exception as clip_e:
              print(f"读取视频失败: {clip_file}")
              print(f"错误详情: {str(clip_e)}")
              print(traceback.format_exc())
  

内容的提问来源于stack exchange，提问作者Alister Kwapisz