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-rw-r--r--doc/avconv.texi9
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diff --git a/doc/avconv.texi b/doc/avconv.texi
index 40c105cc15..972d13fed5 100644
--- a/doc/avconv.texi
+++ b/doc/avconv.texi
@@ -562,6 +562,9 @@ Do not use any hardware acceleration (the default).
@item auto
Automatically select the hardware acceleration method.
+
+@item vdpau
+Use VDPAU (Video Decode and Presentation API for Unix) hardware acceleration.
@end table
This option has no effect if the selected hwaccel is not available or not
@@ -579,6 +582,12 @@ Select a device to use for hardware acceleration.
This option only makes sense when the @option{-hwaccel} option is also
specified. Its exact meaning depends on the specific hardware acceleration
method chosen.
+
+@table @option
+@item vdpau
+For VDPAU, this option specifies the X11 display/screen to use. If this option
+is not specified, the value of the @var{DISPLAY} environment variable is used
+@end table
@end table
@section Audio Options