[FFmpeg-cvslog] configure: clarify external library section of help output

[Diego Biurrun]

ffmpeg | branch: master | Diego Biurrun <diego at biurrun.de> | Mon Jul 16 18:19:13 2012 +0200| [c547e5ff98debb8def8f0343bde785791872ff0e] | committer: Diego Biurrun

configure: clarify external library section of help output

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=c547e5ff98debb8def8f0343bde785791872ff0e
---

 configure |   15 +++++++--------
 1 file changed, 7 insertions(+), 8 deletions(-)

diff --git a/configure b/configure
index df03888..6333794 100755
--- a/configure
+++ b/configure
@@ -169,10 +169,10 @@ External library support:
   --enable-libcdio         enable audio CD grabbing with libcdio
   --enable-libdc1394       enable IIDC-1394 grabbing using libdc1394
                            and libraw1394 [no]
-  --enable-libfaac         enable FAAC support via libfaac [no]
-  --enable-libfdk-aac      enable AAC support via libfdk-aac [no]
+  --enable-libfaac         enable AAC encoding via libfaac [no]
+  --enable-libfdk-aac      enable AAC encoding via libfdk-aac [no]
   --enable-libfreetype     enable libfreetype [no]
-  --enable-libgsm          enable GSM support via libgsm [no]
+  --enable-libgsm          enable GSM de/encoding via libgsm [no]
   --enable-libilbc         enable iLBC de/encoding via libilbc [no]
   --enable-libmp3lame      enable MP3 encoding via libmp3lame [no]
   --enable-libopencore-amrnb enable AMR-NB de/encoding via libopencore-amrnb [no]
@@ -181,14 +181,13 @@ External library support:
   --enable-libopenjpeg     enable JPEG 2000 de/encoding via OpenJPEG [no]
   --enable-libpulse        enable Pulseaudio input via libpulse [no]
   --enable-librtmp         enable RTMP[E] support via librtmp [no]
-  --enable-libschroedinger enable Dirac support via libschroedinger [no]
-  --enable-libspeex        enable Speex support via libspeex [no]
+  --enable-libschroedinger enable Dirac de/encoding via libschroedinger [no]
+  --enable-libspeex        enable Speex de/encoding via libspeex [no]
   --enable-libtheora       enable Theora encoding via libtheora [no]
   --enable-libvo-aacenc    enable AAC encoding via libvo-aacenc [no]
   --enable-libvo-amrwbenc  enable AMR-WB encoding via libvo-amrwbenc [no]
-  --enable-libvorbis       enable Vorbis encoding via libvorbis,
-                           native implementation exists [no]
-  --enable-libvpx          enable VP8 support via libvpx [no]
+  --enable-libvorbis       enable Vorbis encoding via libvorbis [no]
+  --enable-libvpx          enable VP8 de/encoding via libvpx [no]
   --enable-libx264         enable H.264 encoding via x264 [no]
   --enable-libxavs         enable AVS encoding via xavs [no]
   --enable-libxvid         enable Xvid encoding via xvidcore,