[FFmpeg-devel] [PATCH] documentation: add setdar and setsar description to filters.texi

[Stefano Sabatini]

---
 doc/filters.texi |   34 ++++++++++++++++++++++++++++++++++
 1 files changed, 34 insertions(+), 0 deletions(-)

diff --git a/doc/filters.texi b/doc/filters.texi
index 25be868..bd14067 100644
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -901,6 +901,23 @@ ratio of the input image.
 
 The default value of @var{width} and @var{height} is 0.
 
+ at section setdar
+
+Set the Display Aspect Ratio for the output video.
+
+The filter accepts in input a string of the form @var{num}:@var{den},
+where @var{num} and @var{den} are numerator and denominator of the
+wanted display aspect ratio, or @var{float}, where @var{float} is a
+floating number.
+
+If a parameter is not specified, it is assumed the value "0:1", and
+the input display aspect ratio is kept.
+
+For example to change the display aspect ratio to 16:9, specify:
+ at example
+setdar=16:9
+ at end example
+
 @section setpts
 
 Change the PTS (presentation timestamp) of the input video frames.
@@ -961,6 +978,23 @@ setpts=N/(25*TB)
 setpts='1/(25*TB) * (N + 0.05 * sin(N*2*PI/25))'
 @end example
 
+ at section setsar
+
+Set the Sample (aka Pixel) Aspect Ratio for the output video.
+
+The filter accepts in input a string of the form @var{num}:@var{den},
+where @var{num} and @var{den} are numerator and denominator of the
+wanted sample aspect ratio, or @var{float}, where @var{float} is a
+floating number.
+
+If a parameter is not specified, it is assumed the value "0:1", and
+the input sample aspect ratio is kept.
+
+For example to change the sample aspect ratio to 16:9, specify:
+ at example
+setsar=16:9
+ at end example
+
 @section settb
 
 Set the timebase to use for the output frames timestamps.
-- 
1.7.2.3