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• how to extract motion vectors in c

  19 mai 2015, par user3683102

  i need to write a code that can extract motion vectors from a video in c. i know that the subject already have been discussed here but i’m new in the video world and i didn’t really get them.
  i found a some instructions to install ffmpeg, and some source code that should be useful. however the code doesnt compile. it has problems with that :

  #include <libavformat></libavformat>avformat.h>
  
  #include <libavcodec></libavcodec>avcodec.h>

  if someone is Patient enough to help i will be Grateful

• Web page with script

  28 avril 2017, par Peter

  please be patient with me, I have never been very much into the coding (only at the university just a little) but here is one thing I would love to have. I havent done any research before asking before I dont even know what to search for :) but here is what I would like to do :

  I have synology device with multicast TV stream connected to it. I have installed ffmpeg and everytime I want to record a TV show I have to do it from CLI so I was thinking it would be nice to run this ffmpeg from the web page. I mean I would click the TV channel from the drop down menu, set the name of a file, set the time and click RUN and then the command (ffmpeg -i http://MULTICAST_STREAM-variable -acodec copy -vcodec copy /var/services/homes/xxx/NAME_OF_TV_SHOW.mpg) will execute on my synology...Is something like this possible ? (I hope it is)...What exactly should I search for ?

  Thank you very much

• Seeking Ideas : How Can I Automatically Generate a TikTok Video from a Custom Song Using C# [closed]

  14 mai 2024, par Jamado

  Im creating a c# program which creates a video of the from a song and posts it on tiktok.

  


  Right now my program

  


  


  1. Uses spleeter to split the song into stems

     


  


  2. uses a script of GitHub to create waveform images of the stems

     


  


  


  I want my end video to look like this :

  


  https://vm.tiktok.com/ZMM7CDmUt/ - only one song will play per video

  


  https://vm.tiktok.com/ZMM7Xdw8b/

  


  https://vm.tiktok.com/ZMM7CcGtE/ - no webcam or that hitting animations

  


  basically I want the stems of the songs to be placed on top of a FL studio timeline, synced to the song, then I want to overlay a image on top of the video. and then to contribute for todays gen's 3 second attention span, add some audio virtualisations ontop of the fl studio recording (the music making app in the video) and a little shake to the image

  


  I've tinkered with ffmpeg before, and I reckon it could do the trick here. I'd use the waveform pictures and mix them with a pre-recorded FL Studio video using ffmpeg's filters, like VStack to stack images, Scroll to slide them around and Blend. And then tweak the overlay filter for that shake effect. Plus, I found out ffmpeg can whip up some basic audio visualizations, which is neat. (https://gist.github.com/Neurogami/aeed8693f7ac375d5e013b8432d04d3f)

  


  But my main issue with this approach is, how the waveform images will look weird/out of place ontop of the fl studio video, because FL studio has a really spesific "theme". I could manually create a template and then use some other library to merge the template image and the waveform image. But, it feels a bit janky and would probably be a hassle to set up and implement.

  


  So, I'm curious if you folks have any nifty libraries, GitHub gems, or ideas to help me nail this video ?