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• Simple mp3 audio extract from video (mp4/avi/webm etc) using Python script (moviepy)

  28 mai 2016, par Bam

  I’m trying to run this very simple python script to extract mp3 from a video.

  Here’s the code :

  import moviepy.editor as mp
  
  clip = mp.VideoFileClip("test.webm")
  
  clip.audio.write_audiofile("test.mp3")

  I’m running this on a Mac and moviepy/ffmpeg seem to be correctly installed. I get the following error :

  Traceback (most recent call last):
  
    File "/Users/XXXXXX/Code/python/000014 - convert mp4 to mp3.py", line 2, in <module>
  
      clip = mp.VideoFileClip("test.webm")
  
    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/moviepy/video/io/VideoFileClip.py", line 55, in __init__
  
      reader = FFMPEG_VideoReader(filename, pix_fmt=pix_fmt)
  
    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/moviepy/video/io/ffmpeg_reader.py", line 32, in __init__
  
      infos = ffmpeg_parse_infos(filename, print_infos, check_duration)
  
    File "/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/site-packages/moviepy/video/io/ffmpeg_reader.py", line 250, in ffmpeg_parse_infos
  
      if "No such file or directory" in lines[-1]:
  
  IndexError: list index out of range
  
  </module>

  The source file is in the same directory as the code is being run in.

  The same code ran fine on a Windows pc.

  Any ideas ? thanks

• OSError : MoviePy error : failed to read the duration of file

  3 août 2022, par ZackR

  I'm receiving the error below from a lambda deployment with a Python3.9 runtime environment and x86_64 architecture. I attempted using the both most recent ffmpeg binary snapshot snapshot and release from this link, [https://evermeet.cx/ffmpeg/][1].
I checked the file info for duration and the attribute exists with a value of 16 seconds.

  


  What am I missing here ??

  


  [ERROR] OSError: MoviePy error: failed to read the duration of file /tmp/lgnd-assets-public-drops---sample-video.mp4.
Here are the file infos returned by ffmpeg:

-i: /var/task/ffmpeg: cannot execute binary file

Traceback (most recent call last):
  File "/var/task/CreateThumbnail.py", line 99, in handler
    create_video_thumbnail(bucket, key, file_name, extension)
  File "/var/task/CreateThumbnail.py", line 72, in create_video_thumbnail
    resize_video(thumb_download_path, thumb_upload_path)
  File "/var/task/CreateThumbnail.py", line 30, in resize_video
    with VideoFileClip(video_path) as video:
  File "/var/task/moviepy/video/io/VideoFileClip.py", line 88, in __init__
    self.reader = FFMPEG_VideoReader(filename, pix_fmt=pix_fmt,
  File "/var/task/moviepy/video/io/ffmpeg_reader.py", line 35, in __init__
    infos = ffmpeg_parse_infos(filename, print_infos, check_duration,
  File "/var/task/moviepy/video/io/ffmpeg_reader.py", line 296, in ffmpeg_parse_infos
    raise IOError(("MoviePy error: failed to read the duration of file %s.\n"


  


  Thanks,
Zack

  


• rtmp : Support reading interleaved chunks.

  17 septembre 2013, par Josh Allmann

  rtmp : Support reading interleaved chunks.
  A given packet won’t always come in contiguously ; sometimes
  
  they may be broken up on chunk boundaries by packets of another
  
  channel.
  This support primarily involves tracking information about the
  
  data that’s been read, so the reader can pick up where it left
  
  off for a given channel.
  As a side effect, we no longer over-report the bytes read if
  
  (toread = MIN(size, chunk_size)) == size
  Signed-off-by : Martin Storsjö <martin@martin.st>
  

  • [DH] libavformat/rtmppkt.c
  • [DH] libavformat/rtmppkt.h
  • [DH] libavformat/rtmpproto.c