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• How to correctly pass Windows path with spaces to FFmpeg -vf ass filter in Python ?

  9 mai, par Utopia

  ass_path = r'C:\Users\username\Desktop\Title Of Video.ass'
          command = [
              'ffmpeg',
              '-i', mp4_path,
              '-vf', f"ass='{ass_path}'",  # Embed the full path in the filter string, with single quotes
              '-c:v', 'libx264',
              '-c:a', 'copy',
              output_path
          ]
  

  In the error message I'm getting this message: Unable to parse option value "UsersusernameDesktopTitle Of Video.ass" as image size. Somehow in the command it's stripping the \ away and removed the C:

  Does anyone know how to fix this? Thanks.

• Error importing VideoFileClip from moviepy : AttributeError : 'PermissionError' object has no attribute 'message'

  9 mai, par Tahlil

  I'm using jupyter notebook. I have also tried from anaconda console as well.

  Tried importing with both the ways shown below

  from moviepy.editor import VideoFileClip
  
  from moviepy.video.io.VideoFileClip import VideoFileClip
  

  Both of them gave me same error. Full trace is below

  AttributeError                            Traceback (most recent call last)
   in ()
        6 import glob
        7 import math
  ----> 8 from moviepy.editor import VideoFileClip
        9 from moviepy.video.io.VideoFileClip import VideoFileClip
  
  C:\Program Files\Anaconda3\lib\site-packages\moviepy\editor.py in ()
       20 # Clips
       21 
  ---> 22 from .video.io.VideoFileClip import VideoFileClip
       23 from .video.io.ImageSequenceClip import ImageSequenceClip
       24 from .video.io.downloader import download_webfile
  
  C:\Program Files\Anaconda3\lib\site-packages\moviepy\video\io\VideoFileClip.py in ()
        1 import os
        2 
  ----> 3 from moviepy.video.VideoClip import VideoClip
        4 from moviepy.audio.io.AudioFileClip import AudioFileClip
        5 from moviepy.Clip import Clip
  
  C:\Program Files\Anaconda3\lib\site-packages\moviepy\video\VideoClip.py in ()
       18 
       19 import moviepy.audio.io as aio
  ---> 20 from .io.ffmpeg_writer import ffmpeg_write_image, ffmpeg_write_video
       21 from .io.ffmpeg_tools import ffmpeg_merge_video_audio
       22 from .io.gif_writers import (write_gif,
  
  C:\Program Files\Anaconda3\lib\site-packages\moviepy\video\io\ffmpeg_writer.py in ()
       13     DEVNULL = open(os.devnull, 'wb')
       14 
  ---> 15 from moviepy.config import get_setting
       16 from moviepy.tools import verbose_print
       17 
  
  C:\Program Files\Anaconda3\lib\site-packages\moviepy\config.py in ()
       49     success, err = try_cmd([FFMPEG_BINARY])
       50     if not success:
  ---> 51         raise IOError(err.message +
       52                  "The path specified for the ffmpeg binary might be wrong")
       53 
  
  AttributeError: 'PermissionError' object has no attribute 'message'
  

  Python version info

  Python 3.5.2 |Anaconda custom (64-bit)| (default, Jul  5 2016, 11:41:13) [MSC v.1900 64 bit (AMD64)] on win32
  Type "help", "copyright", "credits" or "license" for more information.
  

  Running ffmpeg -version in a console gives me

  ffmpeg version N-83507-g8fa18e0 Copyright (c) 2000-2017 the FFmpeg developers
  built with gcc 5.4.0 (GCC)
  configuration: --enable-gpl --enable-version3 --enable-cuda --enable-cuvid --enable-d3d11va --enable-dxva2 --enable-libmfx --enable-nvenc --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenh264 --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-libzimg --enable-lzma --enable-zlib
  libavutil      55. 47.100 / 55. 47.100
  libavcodec     57. 80.100 / 57. 80.100
  libavformat    57. 66.102 / 57. 66.102
  libavdevice    57.  2.100 / 57.  2.100
  libavfilter     6. 73.100 /  6. 73.100
  libswscale      4.  3.101 /  4.  3.101
  libswresample   2.  4.100 /  2.  4.100
  libpostproc    54.  2.100 / 54.  2.100
  

  I'm running 64 bit version of Windows 10.

  I can't find any solution anywhere and its driving me crazy! Seems like its not finding the ffmpeg binary but I have put it in C:\ffmpeg\bin and added this to path environment variable. Followed the instruction from here.

• Scale image overlay over the time with ffmpeg

  9 mai, par Nazarii Kahaniak

  I have an overlay image and background video. I want to make the overlay 3 times bigger when 10 seconds of video pass, the scaling animation should take 1 second. Is it possible to do something like this with ffmpeg?

• Batch merge audio files by specific timestamp without reencoding

  8 mai, par Saccarab

  I want to batch merge mp3 audio files where every single file has a specific start time. So below is the fluent-ffmpeg spawn I use right now to merge 3 files with each starting at respectively 200, 7400 and 10600.

  ffmpeg -i firstFile.mp3 -i secondFile.mp3 -i thirdFile.mp3 -filter_complex 
  [0]adelay=200[a0];[1]adelay=7400[a1];[2]adelay=10600[a2];[a0][a1] 
  [a2]amix=inputs=3:dropout_transition=1000,volume=3 -f mp3 pipe:1
  

  This works pretty good, except for longer files re-encoding makes the process take real long. So I wanted to do the same thing using concat demuxer. Since I already know how long each audio file is, I've put in silent audio files between them to create a delay until next audio file so it actually starts on the time position it is supposed to.

  #concatfile.txt
  
  file silence.mp3
  outpoint 200
  file firstFile.mp3
  file silence.mp3
  outpoint 1500
  file secondFile.mp3
  file silence.mp3
  outpoint 2000
  file thirdFile.mp3
  
  ffmpeg -f concat -safe 0 -i concatfile.txt -c copy output.mp3
  

  This solution also works okay when merging few files but when I merge higher count of files like 30 or 40 result file will have a slowly increasing synchronization problem where audio files actually start later than the start timestamps they are supposed to have.

  Looks like an issue similar to this post

  I'm open for any suggestion on solving the issue.

• ffmpeg creating gif from images, how to prevent loop ?

  8 mai, par Geuis

  I'm creating gifs from a small group of images. Currently the gif loops by default. I've been trying variations of -loop in the ffmpeg command, but the gif still loops. What's the right way to do this?