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• can't install libvorbis on centos 7, fatal error : ogg/ogg.h : No such file or directory

  14 octobre 2019, par Abdalla Mohamed Aly Ibrahim

  Hello I’ve been trying to install FFmpeg with some libraries using this tutorial
  https://trac.ffmpeg.org/wiki/CompilationGuide/Centos?version=85

  using this command to install the libvorbis

  cd ~/ffmpeg_sources
  
  curl -O -L http://downloads.xiph.org/releases/vorbis/libvorbis-1.3.5.tar.gz
  
  tar xzvf libvorbis-1.3.5.tar.gz
  
  cd libvorbis-1.3.5
  
  ./configure --prefix="$HOME/ffmpeg_build" --with-ogg="$HOME/ffmpeg_build" --disable-shared
  
  make
  
  make install

  i get this error with command make

      ../include/vorbis/codec.h:26:21: fatal error: ogg/ogg.h: No such file or directory
  
       #include <ogg></ogg>ogg.h>
  
  compilation terminated.

  and when i install ffmpeg i get this error

  ERROR: vorbis not found using pkg-config

  Thanks

• Is there a way to integrate FFmpeg into own C#-Solution using Visual Studio ?

  17 avril 2023, par stupidbutseeking

  I can't figure out how to use FFmpeg in my own C#-Project.
I downloaded the win64 gpl shared release with the libs from https://github.com/BtbN/FFmpeg-Builds/releases but I can't find a way to integrate it into my existing Visual Studio Solution.

  


  I also tried to compile the libs following this guide : https://trac.ffmpeg.org/wiki/CompilationGuide/WinRT for win x64
and also this https://github.com/microsoft/FFmpegInterop
but none worked.

  


  When I reference the dlls (using the Dependency-Manager from VS) it will complain that the references are invalid or not supported.

  


  I also created a new VS Project but the same problem occured. I read in some forum that the target framework has to be netstandard2.0.

  


  I think I missed something but I cant find out what it is.

  


• ffmpeg on windows mobile with C#

  19 septembre 2017, par Riv

  I need to work with FFmpeg for windows mobile with C#, in fact I want build player for .m4b,.m4a files. I know that the TCPMP is exist, but I want to make my own.
  So I want to use .Net, and I have some questions :

  1. If I use some C# FFmpeg wrappers, for example TaoFramework, will it work on windows mobile(in case if I use FFmpeg lib compiled for windows mobile) ?

  2. In FFmpeg wiki I found this

  Once you have compiled, or downloaded,
  the Windows DLLs for FFmpeg, you can
  use .Net Platform Invoke (PI) to
  access the functions in the libraries
  libavformat and libavcodec.
  Link to source...

  But I don’t know how can I use it ? I tried to make it with dll that I had downloaded from http://ffmpeg.arrozcru.org/autobuilds/. Maybe I need to compile ffmpeg by myself for this option ?

  And last question is - what is libavcodec ? When I downloaded shared build, I got avcodec-52.dll, avfilter-1.dll, ffmpeg.exe, but I coudn’t find libavcodec.dll, or it’s just alias ?