avfilter: add nvidia NPP based transpose filter

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/doc/filters.texi b/doc/filters.texi
index 5ccd6e0863..860d1eadca 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -16241,6 +16241,7 @@ embedded peak information in display metadata is not reliable or when tone
 mapping from a lower range to a higher range.
 @end table
 
+@anchor{transpose}
 @section transpose
 
 Transpose rows with columns in the input video and optionally flip it.
@@ -16320,6 +16321,47 @@ The command above can also be specified as:
 transpose=1:portrait
 @end example
 
+@section transpose_npp
+
+Transpose rows with columns in the input video and optionally flip it.
+For more in depth examples see the @ref{transpose} video filter, which shares mostly the same options.
+
+It accepts the following parameters:
+
+@table @option
+
+@item dir
+Specify the transposition direction.
+
+Can assume the following values:
+@table @samp
+@item cclock_flip
+Rotate by 90 degrees counterclockwise and vertically flip. (default)
+
+@item clock
+Rotate by 90 degrees clockwise.
+
+@item cclock
+Rotate by 90 degrees counterclockwise.
+
+@item clock_flip
+Rotate by 90 degrees clockwise and vertically flip.
+@end table
+
+@item passthrough
+Do not apply the transposition if the input geometry matches the one
+specified by the specified value. It accepts the following values:
+@table @samp
+@item none
+Always apply transposition. (default)
+@item portrait
+Preserve portrait geometry (when @var{height} >= @var{width}).
+@item landscape
+Preserve landscape geometry (when @var{width} >= @var{height}).
+@end table
+
+@end table
+
 @section trim
 Trim the input so that the output contains one continuous subpart of the input.