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• Error in writing video file using moviepy and ffmpeg

  29 décembre 2023, par Divakar Sharma

  I have been working with moviepy library for the first time. I have a video clip around 7 hours long, and I'd like to clip it into small clips. I have a list of start and end time.

  


  video = VideoFileClip("videoFile.mp4")
clips = []
for cut in cuts:
   clip = video.subclip(cut[0], cut[1])
   clips.append(clip)
clips
clip = video.subclip("7:32:18", "7:38:38")
clips.append(clip)
for clip, title in zip(clips, title_list):
 clip.write_videofile(title + '.mp4', threads=8, fps=24, audio=True, codec='libx264',preset=compression)
video.close()


  


  clips[] contain the start and end time for clipping. I have a list of title too which I have scraped from youtube. I have not included the two lists here but a small example could be :

  


  cuts = [('0:00', '2:26'),
 ('2:26', '5:00'),
 ('5:00', '7:15'),
 ('7:15', '10:57'),
 ('10:57', '18:00'),
 ('18:00', '18:22'),
 ('18:22', '19:57'),
 ('19:57', '20:37'),
 ('20:37', '28:27'),
 ('28:27', '40:32'),
 ('40:32', '49:57'),...
title_list = ['Introduction (What is Todoist?), tech stack talk', 'Showing the final application (with dark mode!)', 'Installing create react app', "Clearing out what we don't need from create react app", "Let's get building our components!", 'Installing packages using Yarn', 'Building the Header component', 'Building the Content component',...


  


  OSError: [Errno 32] Broken pipe

MoviePy error: FFMPEG encountered the following error while writing file Introduction(WhatisTodoist?),techstacktalkTEMP_MPY_wvf_snd.mp3:

b'Introduction(WhatisTodoist?),techstacktalkTEMP_MPY_wvf_snd.mp3: Invalid argument\r\n'

In case it helps, make sure you are using a recent version of FFMPEG (the versions in the Ubuntu/Debian repos are deprecated).


  


  Above is the error I am getting after running the write_videofile(). I have looked at the documentation and the issues on github, I tried updating the ffmpeg through pip too. I don't know why it can't write the audio file.

  


• Legal issues regarding proprietary_codecs in Electron framework (libffmpeg)

  18 juin 2021, par Manmohan Singh

  We're in the process of building and deploying a desktop based app on electron v 12.0.7. It'll be a (free) commercial software deployed to 2-3M users worldwide.
Recently our legal team enquired about the proprietary codecs bundled with chromium and I thought the best way to confirm this would be to reach out here.

  


  So, here're specific things that I need help with :

  


  


  1. Are we shipping chromium with proprietary codecs ? If yes, what are potentially contentious codecs that come by default in chromium bundled with electron v 12.0.7 ?

     


  


  2. Is there any documentation around how the electron team builds chromium (with what flags) ?

     


  


  3. Is the default libffmpeg.dylib/dll bundled with electron building ffmpeg with support for things like H.264 and MP3 codecs ?

     


  


  4. I noticed there are libffmpeg binaries available with each electron build, e.g. https://github.com/electron/electron/releases/download/v12.0.7/ffmpeg-v12.0.7-darwin-arm64.zip . What's the purpose of this binary ?

     


  


  


  Any help would be appreciated.

  


• Compiling x264 for iOS 5

  28 novembre 2013, par user1220345

  I'm trying to compile the latest version of libx264 to iOS 5 arm.

  In mid-2010, the Gabriel script for building worked.

  It doesn't anymore.

  It says "No working C compiler found."

  Can anyone give me straight answer ?
  It's 2012 and no one in google seems to have compiled it.