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• Using ffmpeg for videoconference software

  12 novembre 2014, par Pavel

  I have to create a software capable of videoconferencing (through the server or peer-to-peer). I want to :
  1. Capture video and audio from webcum
  2. Compress (encode) it somehow and stream by TCP or UDP
  3. Receive packets from stream
  4. Decompress
  5. Play on a windows form.

  Can I do this with ffmpeg ? I couldn’t find examples of this in the docs ; so
  I would like to know whether it’s possible and if there are any examples
  avaiblable. I had thought of using H263 but any suggestions are welcomed.

  Thanks !

• How to convert animated webp to gif in android / java ?

  21 avril 2022, par UHS

  I want to convert the animated webp files to gif file and looking for solution since couple of days but did not get any easy straight solution yet.

  


  I tried ffmpeg but it could not do the job and after looking for solution I found that webp decoder is not implemented in ffmpeg yet.
https://trac.ffmpeg.org/ticket/4907

  


  I also checked libwebp library by google and they also says animated webp is not supported. https://developers.google.com/speed/webp/docs/dwebp

  


  I tried demo of aspose this library also fail to convert animated webp to gif.
https://products.aspose.com/imaging/java/conversion/webp-to-gif/

  


  I think ImageMagick can convert animated webp to gif but do not know how to implement that in my project.
How can I avoid dropouts when using (imagemagick) `mogrify` to convert webp files to animated gif ?

  


  So is there any easy way to convert webp to gif

  


• Video Live wallpaper android

  12 juillet 2014, par NZT Solution

  I am trying to implement https://github.com/frankandrobot/GLWallpaperVideoDemo but this is 3 year old code. I didn’t find any other tutorial. I am using eclipse on windows 7. I have searched on google and found that NDK-r7 versions and later can also be build on windows without using Cygwin. I have also followed this link How to play video as live wallpaper android ?. I have generated .so files as well but when i try to install this in my device It is getting crashed. I have installed NDK also tried to replace latest FFMpeg libraries but no Luck ! I wonder if someone could help me out of these ? Error java.lang.RuntimeException: Unable to instantiate service frankandrobot.glwallpapervideodemo.com