Specified video encoder requirements more precisely.

diff --git a/README b/README
index ddee1897e5c5e043557bb559da1c4debb38b49f2..dc025378b243b1f3a55b771faa92ba89ac020618 100644 (file)
--- a/README
+++ b/README
@@ -18,9 +18,13 @@ VideoLink depends on the following software:
 - dvdauthor
 - expat 1.x
 - Gtkmm 2.4 or later
-- ffmpeg or mjpegtools 1.8 or later
+- either of:
+  - ffmpeg including mpeg2video encoding
+    ("ffmpeg -formats" should show "DEVSDT mpeg2video" in the codecs section)
+  - both of:
+    - mjpegtools 1.8 or later
+    - netpbm
 - Mozilla 1.8 or later, or XULRunner
-- netpbm
 - Xvfb (from XFree86 or X.org)
 
 To build a complete DVD image you will also need: