FFMPEG Error on current Debian Wheezy x64

[oxivanisher]

Hi All

I have e recurring error with/from ffmpeg on 2 devices running (current) debian wheezy. I only have 64bit systems so i was not able to try 32 bit. The installed version of moviepy is from pip, but i tried it also with a current git clone and got the same result. When i run the command myself which moviepy runs ffmpeg -i /tmp/DSC_0384.JPG -f image2pipe -pix_fmt rgba -vcodec rawvideo - it ends with "Segmentation fault" so i think it is something with ffmpeg. But i don't know how to track it down further.

My testfile (from the example page extracted) which produces the same error as my more complex project:

#!/usr/bin/python
from moviepy.editor import *
txt_clip = TextClip("My Holidays 2013",fontsize=70,color='white')

The error from moviepy:

$ python test.py 
Traceback (most recent call last):
  File "test.py", line 5, in <module>
    txt_clip = TextClip("My Holidays 2013",fontsize=70,color='white')
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/VideoClip.py", line 971, in __init__
    ImageClip.__init__(self, tempfile, transparent=transparent)
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/VideoClip.py", line 753, in __init__
    img = ffmpeg_read_image(img,with_mask=transparent)
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/io/ffmpeg_reader.py", line 192, in ffmpeg_read_image
    reader = FFMPEG_VideoReader(filename, pix_fmt=pix_fmt)
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/io/ffmpeg_reader.py", line 34, in __init__
    self.lastread = self.read_frame()
  File "/usr/local/lib/python2.7/dist-packages/moviepy/video/io/ffmpeg_reader.py", line 117, in read_frame
    assert len(s) == nbytes
AssertionError
Exception AttributeError: "FFMPEG_VideoReader instance has no attribute 'lastread'" in <bound method FFMPEG_VideoReader.__del__ of <moviepy.video.io.ffmpeg_reader.FFMPEG_VideoReader instance at 0x25fa5f0>> ignored

Ffmpeg version:

$ ffmpeg -version
ffmpeg version 0.8.10-6:0.8.10-1, Copyright (c) 2000-2013 the Libav developers
  built on Feb  5 2014 03:52:19 with gcc 4.7.2
*** THIS PROGRAM IS DEPRECATED ***
This program is only provided for compatibility and will be removed in a future release. Please use avconv instead.
ffmpeg 0.8.10-6:0.8.10-1
libavutil    51. 22. 2 / 51. 22. 2
libavcodec   53. 35. 0 / 53. 35. 0
libavformat  53. 21. 1 / 53. 21. 1
libavdevice  53.  2. 0 / 53.  2. 0
libavfilter   2. 15. 0 /  2. 15. 0
libswscale    2.  1. 0 /  2.  1. 0
libpostproc  52.  0. 0 / 52.  0. 0

Any help is much appreciated! I know the problem is not on your side. Debian would like to use avconv in the future but i realize that this is no easy task to change.

[Zulko]

Just update your FFMPEG version by downloading a FFMPEG binary directly from the FFMPEG website, as explained in the readme and in the docs.

FFMPEG is a very fine project, still very alive, it's just that the debian/ubuntu people have decided that their distributions would ship with an outdated FFMPEG version. Switching to avconv would be easy, but I am not convinced avconv would be better.

When you run the command in a terminal, you get a segmentation fault because this command is a little special, there is the "-" at the end that tells FFMPEG that it must send its output to the pipe of another program. So it won't work in a terminal.

Thanks for the feedback, please report any other difficulties you might encounter !

[oxivanisher]

I installed the deb-multimedia packages and it works! :D Thank you very much for the fast support and have a nice weekend.