@@ -203,6 +203,20 @@ Individual component options:

   --disable-filters        disable all filters

 External library support:

+

+  Using any of the following switches will allow FFmpeg to link to the

+  corresponding external library. All the components depending on that library

+  will become enabled, if all their other dependencies are met and they are not

+  explicitly disabled. E.g. --enable-libwavpack will enable linking to

+  libwavpack and allow the libwavpack encoder to be built, unless it is

+  specifically disabled with --disable-encoder=libwavpack.

+

+  Note that only the system libraries are auto-detected. All the other external

+  libraries must be explicitly enabled.

+

+  Also note that the following help text describes the purpose of the libraries

+  themselves, not all their features will necessarily be usable by FFmpeg.

+

   --disable-audiotoolbox   enable AudioToolbox decoders and encoders [autodetect]

   --enable-avisynth        enable reading of AviSynth script files [no]

   --disable-bzlib          disable bzlib [autodetect]