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• Convert m3u8 File URL to a GIF File [closed]

  30 juin 2023, par nxsi

  I have a m3u8 File URL that I got using the MusicKit API (Apple Music) which is an animated cover art for an album. (A quick side question on that. Is m3u8 the only format that Apple Music returns for animated cover arts ?)

  


  So, Now that I have that m3u8 file URL, I want to convert it to a GIF for the ease of use of GIFs.
I've tried using ffmpeg but I don't really seem to make it work at all with NodeJS.

  


  Here is a sample File URL of what Apple Music returns (https://mvod.itunes.apple.com/itunes-assets/HLSMusic116/v4/cb/ac/9e/cbac9e42-0c8a-9798-0016-52ce447cdc78/P359486356_default.m3u8)

  


  TLDR ;
1- Is m3u8 the only format of animated cover arts that the MusicKit api returns ?
2- Can I convert that m3u8 file URL to a GIF, If so, How ?
3- Are there any other ways than ffmpeg to use in NodeJS ?

  


  I've tried using ffmpeg and the furthest I got was a GIF that was corrupted and not done correctly.
Here is the command I tried :

  


  ffmpeg -i "https://mvod.itunes.apple.com/itunes-assets/HLSMusic116/v4/cb/ac/9e/cbac9e42-0c8a-9798-0016-52ce447cdc78/P359486356_default.m3u8" -vf "fps=10,scale=320:-1:flags=lanczos" output.gif


  


• Batch execute (ffmpeg) command on multiple sets of images at once [Novice]

  23 septembre 2021, par Ethan Kendrick

  I'm relatively new to navigating Python libraries, Windows batch processing, and coding as a whole. Here is my situation :

  


  I have multiple folders each with n images in them, where n is a number divisible by 7.
In each folder, the images are in sets of 7, grouped by their name. If one set of these images was named "apple", I would have the following seven images with the following naming structure :

  


  Apple.0_aspect-gigapixel-art-scale-4_00x.png,
Apple.1_aspect-gigapixel-art-scale-4_00x.png,
Apple.2_aspect-gigapixel-art-scale-4_00x.png,
Apple.3_aspect-gigapixel-art-scale-4_00x.png,
Apple.4_aspect-gigapixel-art-scale-4_00x.png,
Apple.5_aspect-gigapixel-art-scale-4_00x.png
Apple_aspect-gigapixel-art-scale-4_00x.png
(Please note that that order matters, the numberless file should be the last, but if the files are sorted by alphabetical/date, that should already be the case.)

  


  For each one of these sets of images inside of one of the folders, I am using ffmpeg to make a video file with the guidelines outlined in this post. On that post I received great help from the user Gyan, who gave me this command : ffmpeg -framerate 10 -i %d.png -vf "split=2[head][loop];[head]trim=end_frame=4[head];[loop]trim=start_frame=3,setpts=PTS-STARTPTS,loop=6:4:0,shuffleframes=1 2 3 2[tail];[head][tail]concat=n=2:v=1:a=0" out.mp4. I am wanting to batch execute this command in each of my folders of images, having it create a video file for each one of the groups of 7.

  


  TLDR ; How can I batch execute a ffmpeg command (above) on multiple sets of images at once ?

  


  Thank you all so much. I very much appreciate the help I've received so far.

  


• Merge videos with different start times and show them on a grid

  1er août 2017, par shamaleyte

  I have multiple video files of a conference call. However, each participant joined the call at a different time, which resulted in the fact that each video file has a different start time offset values.

  Video   Start Time
  
  ------------------
  
  Video1  00:00
  
  Video2  00:10
  
  Video3  01:40

  My purpose is to play back this conference. However, I did not record the conference as 1 video, it is recorded with multiple video files, instead.
  How do I stitch these videos ?

  There is also a paid solution to merge video fragments to a single clip – this will make the client-side much simpler. But can I do it for free ?

  The expected outcome is to have one video showing three videos on a grid.
  When ffmpeg stitches the videos, it should consider their start time values properly so that the videos are played accordingly.