[Ffmpeg-devel] Re: Visual studio .net problem

[Scott Field]

Martin Boehme <boehme <at> inb.uni-luebeck.de> writes:

> 
> Lucio Marcenaro wrote:
> >> Hm... so you have them installed somewhere else on your search path? 
> >> Otherwise, I'd say you aren't linking properly to the DLLs.
> > 
> > i have ffmpeg stuff in my project dir:
> > myprojectdir\
> >     \include\ffmpeg
> >     \lib (contains av*.lib)
> >     \bin (contains av*.dll and .exe)
> > 
> > then i add directory myprojectdir\include\ffmpeg and myprojectdir\lib in 
> > visual studio options as additional directories for include and lib 
> > files respectively
> 
> Have you tried copying the DLLs to the directory that contains your program?
> 
> You said in your other post that you deleted all of the FFmpeg libraries 
> that you found on your system -- did that change anything?
> 
> Have you tried executing your own program after deleting all FFmpeg 
> libraries (it should come up with some kind of error saying that it 
> can't find the DLLs)? If that doesn't happen, it means that there's 
> still some DLL lurking around somewhere...
> 
> >> Are your import libraries being generated correctly? Do you have the 
> >> Microsoft link.exe on your path when you build FFmpeg, and do you see 
> >> output from link.exe during the build process?
> > 
> > i think so....
> > i mean, if i run msys window and type link.exe it gives me
> > Microsoft (R) Incremental Linker Version 7.10.3077
> > Copyright (C) Microsoft Corporation.  All rights reserved.
> > usage etc etc
> > 
> > lib files are
> > avcodec.lib (137.912 bytes)
> > avformat.lib (188.028 bytes)
> > avutil.lib (5.994 bytes)
> > mingw make should generate lib dll and everything i need? is it correct?
> 
> That looks pretty OK...
> 
> > no need to run stuff like dlltool.exe manually, right?
> 
> No.
> 
> Martin
> 

Hey everyone,

I just wanted to join because I have the same exact problem.  I can link and
execute, but when it comes to avcodec_find_encoder or avcodec_find_decoder they
return NULL.

If anyone has made any finding I would love to hear them.  

    I am working with:

Visual Studio .NET 7.1.3088
Windows XP Pro SP2
minGW 3.2.3

FFMPEG.exe Info:
ffmpeg version CVS, build 3276800, Copyright (c) 2000-2004 Fabrice Bellard
  configuration:  --enable-memalign-hack --enable-mingw32 --enable-mp3lame
--extra-cflags=-I/local/include --extra-ldflags=-L/local/lib
  built on Oct  4 2005 13:54:56, gcc: 3.2.3 (mingw special 20030504-1)

./configure settings for libraries:
--enable-memalign-hack --enable-mingw32 --enable-mp3lame --enable-shared
--extra-cflags=-I/local/include --extra-ldflags=-L/local/lib

Scott