[FFmpeg-cvslog] doc: add a section about building with libmfx

[Anton Khirnov]

ffmpeg | branch: master | Anton Khirnov <anton at khirnov.net> | Fri Jul 10 09:57:41 2015 +0200| [a9a2f3613040c4f90bf15cbd76f8671252ecc043] | committer: Anton Khirnov

doc: add a section about building with libmfx

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=a9a2f3613040c4f90bf15cbd76f8671252ecc043
---

 doc/general.texi |   11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/doc/general.texi b/doc/general.texi
index ef9bc6a..a6ee1f7 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -181,6 +181,17 @@ end user having AviSynth or AvxSynth installed - they'll only need to be
 installed to use AviSynth scripts (obviously).
 @end float
 
+ at section Intel QuickSync Video
+
+Libav can use Intel QuickSync Video (QSV) for accelerated encoding and decoding
+of multiple codecs. To use QSV, Libav must be linked against the @code{libmfx}
+dispatcher, which loads the actual decoding libraries.
+
+The dispatcher is open source and can be downloaded from
+ at url{https://github.com/lu-zero/mfx_dispatch.git}. Libav needs to be configured
+with the @code{--enable-libmfx} option and @code{pkg-config} needs to be able to
+locate the dispatcher's @code{.pc} files.
+
 @chapter Supported File Formats and Codecs
 
 You can use the @code{-formats} and @code{-codecs} options to have an exhaustive list.