doc/general.texi: Adjust the notes on AviSynth

FFmpeg provides local copies of these headers in compat/avisynth/,
and there is no restriction against using 2.5.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Stephen Hutchinson 2014-03-11 23:02:16 -04:00 committed by Michael Niedermayer
parent 3ddf76ee07
commit 5336cd6374

View File

@ -164,30 +164,17 @@ you must upgrade FFmpeg's license to GPL in order to use it.
@section AviSynth
FFmpeg can read AviSynth scripts as input. To enable support you need a
suitable @file{avisynth_c.h} header to compile against. The header in
classic AviSynth's CVS repository is not compatible as it has not been
updated to support AviSynth 2.6. AviSynth 2.5 is not supported by FFmpeg.
Once you have the appropriate header, pass @code{--enable-avisynth} to
configure to enable AviSynth support.
FFmpeg can read AviSynth scripts as input. To enable support, pass
@code{--enable-avisynth} to configure. The correct headers are
included in compat/avisynth/, which allows the user to enable support
without needing to search for these headers themselves.
For Windows, supported AviSynth variants are
@url{http://avisynth.nl, AviSynth 2.6} for 32-bit builds and
@url{http://avisynth.nl, AviSynth 2.5 or 2.6} for 32-bit builds and
@url{http://avs-plus.net, AviSynth+ 0.1} for 32-bit and 64-bit builds.
The necessary @file{avisynth_c.h} header is the variant in the @file{extras/}
directory of the @url{https://www.videolan.org/developers/x264.html, x264}
source tree. For convenience, this header is also available from a
@url{https://github.com/qyot27/avisynth_headers, temporary repository}
along with an installation routine.
For Linux and OS X, the supported AviSynth variant is
@url{https://github.com/avxsynth/avxsynth, AvxSynth}.
@file{avxsynth_c.h} is installed as part of the normal
build routine, as illustrated on
@url{https://github.com/avxsynth/avxsynth/wiki/System-Setup, AvxSynth's wiki}.
(the instructions for compiling its prerequisites are outdated, as FFMS 2.18
or higher is now needed; the list of dependencies to be downloaded from the
repositories is still the same, though).
@float NOTE
AviSynth and AvxSynth are loaded dynamically. Distributors can build FFmpeg