doc/filter: fix grammar in tiltandshift filter

1 files changed, 4 insertions, 4 deletions

diff --git a/doc/filters.texi b/doc/filters.texi
index 0ff7c142b6..c9c4f7cf6b 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -23546,13 +23546,13 @@ tile=3x2:nb_frames=5:padding=7:margin=2
 @end itemize
 
 @section tiltandshift
-Apply tilt-and-shift effet.
+Apply tilt-and-shift effect.
 
 What happens when you invert time and space?
 
 Normally a video is composed of several frames that represent a different
 instant of time and shows a scene that evolves in the space captured by the
-frame. This filter is the antipode of that concept, taking inspiration by
+frame. This filter is the antipode of that concept, taking inspiration from
 tilt and shift photography.
 
 A filtered frame contains the whole timeline of events composing the sequence,
@@ -23591,7 +23591,7 @@ How many columns should be inserted before end of filtering.
 
 @end table
 
-Normally the filter shifts and tils from the very first frame, and stops when
+Normally the filter shifts and tilts from the very first frame, and stops when
 the last one is received. However, before filtering starts, normal video may
 be preseved, so that the effect is slowly shifted in its place. Similarly,
 the last video frame may be reconstructed at the end. Alternatively it is
@@ -23599,7 +23599,7 @@ possible to just start and end with black.
 
 @table @samp
 @item none
-Filtering is starts immediately and ends when the last frame is received.
+Filtering starts immediately and ends when the last frame is received.
 
 @item frame
 The first frames or the very last frame are kept intact during processing.