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• moviepy ffmpeg stderr to tkinter interface

  1er avril 2018, par Alexander Perlman

  Hi stackoverflow community,

  I’m a novice python hobbyist. I wrote a python / ffmpeg script using moviepy that batch concatenates videos. I then designed an interface using tkinter.

  Now I want to redirect the stderr output from FFMPEG to the tkinter interface so that users can review the progress directly in app instead of needing the Sublime text console.

  I’ve done a lot of research but I’m in way over my head. Any tips would be greatly appreciated.

  Here’s the moviepy component. The gui is pretty cut and dry

  #import video clips 
  
  mainvid = VideoFileClip(fullpath, audio=True)
  
  intro = VideoFileClip("intro.mp4", audio=True)
  
  black = VideoFileClip("black1s.mp4", audio=True)
  
  
  
  #concatenate video clips 
  
  final = concatenate_videoclips([black, intro, mainvid, black]) final.fps=24 
  
  
  
  #actually write file 
  
  final.write_videofile(output, audio=True, audio_fps=48000, ffmpeg_params=[ "-r","24000/1001", "-b:v", "50M", "-level:v", "4.1", "-c:a", "libvo_aacenc", "-b:a", "256K", "-colorspace", "bt709"])

• How to download audio and video as separate files and specify the output format and filename for each ?

  14 novembre 2023, par Taako

  I'd like to download a video as separate files for both audio and video and have them named [video_id]-audio.wav and [video_id]-video.mp4

  


  How do i get yt-dlp to download the video and audio separately, then convert each to the specified output format and rename them as such ?

  


  Right now I can get them each downloaded separately but the naming isnt working out.

  


  I could also use ffmpeg separately to convert the video and audio formats after they are downloaded, so all i really need is to have the audio and video files downloaded and named

  


  Right now my args are

  


  YT_OPTIONS = {
    'format': 'bestvideo[height<=720]+bestaudio/best[height<=720]',
    'extractaudio': True,
    'keepvideo': True,
    'outtmpl': '%(id)s-%(format)s.%(ext)s',
    'restrictfilenames': True,
    'noplaylist': True
}


  


  but the format is just coming out as 247_-_1280x720_720p_+251_-_audio_only_medium and whats worse is it is the same for both the audio only and video only files just one has 251 and the other has 247.

  


• avfilter/vf_scale : fix off-by-one in loop bounds

  25 novembre 2024, par Niklas Haas

  avfilter/vf_scale : fix off-by-one in loop bounds
  Results in over-read of the array. Fortunately, the excess element was
  
  never actually used, but it still triggers ASAN (and could in theory trigger
  
  a segfault).
  Fixes : 04ce01df0bb2d66e143bcfcea439afc2a1b8d96e
  

  • [DH] libavfilter/vf_scale.c