{{{
#!forumlinks
}}}

= How to cross-compile ffmpeg for Windows =

Notes. Assumes:

  * SDL headers in {{{../../withplayer_win/SDL/include}}}

  * SDL.dll in {{{../../withplayer_win/SDL/src/.libs/SDL.dll}}}

  * A cross compiler set {{{/home/jdmol/withplayer_win/xcomp/bin/mingw32-*}}}. Create one with the attached {{{install_xcc}}} script, which creates an {{{xcomp}}} dir and builds a cross-compiler in it. Have patience and 1GB of diskspace.

  * The attached {{{uname}}} should be in the beginning of the path (code below assumes {{../../win32}}} dir)

{{{
mkdir svn
cd svn
svn checkout svn://svn.mplayerhq.hu/ffmpeg/trunk ffmpeg
cd ffmpeg
PATH=../../win32:$PATH CFLAGS=-I../../withplayer_win/SDL/include LDFLAGS=../../withplayer_win/SDL/src/.libs/SDL.dll  ./configure  --enable-mingw32 --cpu=i686 --arch=i386 --enable-memalign-hack --cross-prefix=/home/jdmol/withplayer_win/xcomp/bin/mingw32- --cc=gcc
make
make ffplay.exe
}}}

Now, copy {{{ffplay.exe}}} and {{{../../withplayer_win/SDL/src/.libs/SDL.dll}}} to your Windows machine.

== Update for new ffmpeg versions ==
'''(Tested with ffmpeg SVN revision 8885)'''

Follow the procedure above, with the following differences:
 * {{{uname}}} is not needed anymore
 * the SDL headers are in {{{../SDL/include}}}
 * the SDL.dll is in {{{../SDL}}}
 * Use the following configuration line instead
{{{
./configure --extra-cflags="-I../SDL/include -I/usr/win32/include" --extra-ldflags="../SDL/SDL.dll 
-L/usr/win32/lib" --cross-compile --target-os=mingw32 --cpu=i686 --arch=i386 --enable-memalign-hack 
--cross-prefix=/home/ivaylo/tribler/xcomp/bin/mingw32- --cc=gcc --enable-libfaad --enable-libfaac --enable-gpl --enable-x264
}}} 
 * If they did not fix this, you might need to add the headers below in libavcodecvc1_parser.c to get it compiling:
{{{
#include "dsputil.h"
+#include "bitstream.h"  
+#include "mpegvideo.h"  
#include "parser.h"
#include "vc1.h"
}}}