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• Stream mp4 file with watermark through a web using ffmpeg

  24 mars 2023, par Jose A. Matarán

  I'm having problems with ffmpeg, probably due to my inexperience with this software.

  


  My basic need is the following : I have a series of videos with material that I want to protect so that it is not plagiarized. For this I want to add a watermark so that when a user views it, they also see some personal data that prevents them from downloading and sharing it without permission.

  


  What I would like is to create a small Angular + Java application that does this task (invoking ffmpeg via Runtime#exec)

  


  I have seen that from ffmpeg I can emit to a server, like ffserver but I wonder if there is a somewhat simpler way. Something like launching the ffmpeg command from my java application with the necessary configuration and having ffmpeg emit the video along with the watermark through some port/protocol.

  


  EDIT

  


  I have continued to investigate and I have seen that ffmpeg allows you to broadcast for WebRTC, but you need an adapter. What I would like and I don't know if it is possible is to launch ffmpeg so that it acts as a server and it can be consumed from the web.

  


• FFMPEG iOS XCode Build

  7 avril 2016, par Alec Gamble

  I’ve been playing around with ffmpeg in the command line recently to perform a few tasks and now I want to make an app which utilises some of it’s features. I’ve been looking at how to include it in my project with varied answers in the replies to other peoples questions.

  ffmpeg -i <filepath to="to" video="video"> -r <rate> <output location="location">/img_%03d.png
  
  </output></rate></filepath>

  to convert my video file to a series of images for image processing.

  My question is :

  How can I include the ffmpeg libraries in my project and then translate my command line function to run from my ObjectiveC++ file ?

  So far I’m struggling to even include it. I’ve tried downloading the normal and ios libraries as per the example in this question :
  How to Build FFMpeg as iOS Framework. But to no avail.

• using ffmpeg to make video from png files from a txt file [duplicate]

  15 mars 2021, par brownfox

  I have a series of png files with arbitrary names ( that is their naming is not in a particular pattern ) I'm looking for a way to combine them to make a video using ffmpeg.

  


  Is there any way to do this using ffmpeg, by providing a text file that contains all the names of the png files in the order I want ?

  


  I'm looking for somrthing like this,

  


  my-txt-file.txt

  


  file 'myfirstimage.png'
file 'thesecondimage02.png'
...
file 'lastimage05.png'


  


  ffmpeg -i my-txt-file.txt -o MyVideo.avi

  


  P.S : The images have a different naming sequence, so I tried creating separate vidoes with the same sequence images and then tried concatenating the videos. But that did not look good, the frame which joins two videos together flashes a lot and the joining is not smooth.

  


  All images have the same dimension and everything is same, except naming pattern.