[Documentation] Documented the VideoPriority parameter.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3443 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/unix/x0vncserver/x0vncserver.man b/unix/x0vncserver/x0vncserver.man
index 667661a..5b8caf8 100644
--- a/unix/x0vncserver/x0vncserver.man
+++ b/unix/x0vncserver/x0vncserver.man
@@ -1,6 +1,6 @@
-.TH X0VNCSERVER 1 "Jun 04, 2008" "TightVNC" "TightVNC Manual"
+.TH X0VNCSERVER 1 "Dec 23, 2008" "TightVNC" "TightVNC Manual"
.SH NAME
-x0vncserver \- TightVNC Server for real X displays
+x0vncserver \- TightVNC Server for X displays
.SH SYNOPSIS
.B x0vncserver
.RI [ options ]
@@ -139,6 +139,25 @@
Milliseconds per one polling cycle. Actual interval may be dynamically
adjusted to satisfy \fBMaxProcessorUsage\fP setting. Default is 30.
.TP
+.B VideoPriority
+Specify the priority of sending video updates. \fBx0vncserver\fP can be
+instructed to treat certain rectangular part of the screen as a video area
+and handle it in a special way for improved performance. Video area is not
+checked for actual changes, it is assumed to be changing continuously and is
+sent in each screen update. Normally, video area is compressed with JPEG (if
+allowed by the client). The \fBVideoPriority\fP parameter controls how often
+video area will be sent to clients as compared to the rest of the screen.
+The priority must be an integer between 0 and 8, and the default value is 2.
+
+\fBVideoPriority\fP set to 1 gives the same priority both to video and to
+other pixels. Higher values give more priority to video. For example, the
+value 5 specifies that the rate of sending video will be five times higher
+than the rate of updating the rest of the screen. If \fBVideoPriority\fP is
+set to 0, it gives equal priority to video and other updates (just like the
+value 1) and also disables special encoding for video data. In other words,
+\fBVideoPriority\fP video area will be sent as a part of other screen
+contents.
+.TP
.B CompareFB
Perform pixel comparison on framebuffer to reduce unnecessary updates.
Default is on.