Merge commit '8a02a8031ef4f98faf5647f0e01a8922247bf748'

* commit '8a02a8031ef4f98faf5647f0e01a8922247bf748':
  lavfi: add an NVIDIA NPP-based scaling filter

Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

1 files changed, 41 insertions, 0 deletions

diff --git a/doc/filters.texi b/doc/filters.texi
index 7634b25532..8fca52d7ad 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -3395,6 +3395,47 @@ channels. Default is 0.3.
 Set level of input signal of original channel. Default is 0.8.
 @end table
 
+@section scale_npp
+
+Use the NVIDIA Performance Primitives (libnpp) to perform scaling and/or pixel
+format conversion on CUDA video frames. Setting the output width and height
+works in the same way as for the @var{scale} filter.
+
+The following additional options are accepted:
+@table @option
+@item format
+The pixel format of the output CUDA frames. If set to the string "same" (the
+default), the input format will be kept. Note that automatic format negotiation
+and conversion is not yet supported for hardware frames
+
+@item interp_algo
+The interpolation algorithm used for resizing. One of the following:
+@table @option
+@item nn
+Nearest neighbour.
+
+@item linear
+@item cubic
+@item cubic2p_bspline
+2-parameter cubic (B=1, C=0)
+
+@item cubic2p_catmullrom
+2-parameter cubic (B=0, C=1/2)
+
+@item cubic2p_b05c03
+2-parameter cubic (B=1/2, C=3/10)
+
+@item super
+Supersampling
+
+@item lanczos
+@end table
+
+@end table
+
+@section select
+Select frames to pass in output.
+
 @section treble
 
 Boost or cut treble (upper) frequencies of the audio using a two-pole