README.ffmpeg

DVBCUT uses the FFMPEG libraries (libavformat, libavcodec) for decoding and
encoding of MPEG2 video streams, as well as for decoding audio streams. To ease
the build process of DVBCUT, a sufficient subset of the FFMPEG sources is now
included in the DVBCUT archive. You find this in the ffmpeg.src directory.

FFMPEG is licensed under the LGPL, with the exception of liba52 and libpostproc,
which are licensed under the GPL. Read the details in ffmpeg.src/README and
ffmpeg.src/COPYING. All credits for FFMPEG go to its authors, which are listed
in ffmpeg.src/CREDITS.

However, you can still build DVBCUT with the FFMPEG libraries which are
installed on your system. Type

make FFMPEG=/usr

if the FFMPEG libraries are in /usr/lib and the header files are in
/usr/include/ffmpeg. This is usually the case if you have FFMPEG packages and
development packages installed from your distribution. If you build FFMPEG
yourself, you have to specify the FFMPEG installation prefix to the DVBCUT
Makefile. E.g.:

(in the FFMPEG directory)
./configure --prefix=/path/to/my/ffmpeg
make
make install

(in the DVBCUT directory)
make FFMPEG=/path/to/my/ffmpeg

If you do not specify any FFMPEG path, DVBCUT will be linked against static
FFMPEG libraries built from the sources in ffmpeg.src.

Currently, DVBCUT comes with a CVS snapshot from FFMPEG, taken at September 18th
2005. The files listed in ffmpeg-patches/cvs20050918.deletefiles were removed
and the patch ffmpeg-patches/cvs20050918.diff was applied, in order to reduce
the size of the DVBCUT source archive. The DVBCUT executable is also
significantly smaller thanks to the patch, which removes unneeded functionality
from FFMPEG.