cmdutils: replace strncpy() with direct assignment

[ffmpeg] / doc / filters.texi

diff --git a/doc/filters.texi b/doc/filters.texi
index 152e806fddfaeb4d787c109606217c5a5e160a0f..30dee5531db72a63489a7bc8373fabea8608e68d 100644 (file)
--- a/doc/filters.texi
+++ b/doc/filters.texi
@@ -1936,10 +1936,10 @@ stream ends. The default value is 2 seconds.
 Specify weight of each input audio stream as sequence.
 Each weight is separated by space. By default all inputs have same weight.
 
-@item sum
-Do not scale inputs but instead do only summation of samples.
-Beware of heavy clipping if inputs are not normalized prior of filtering
-or output from @var{amix} normalized after filtering. By default is disabled.
+@item normalize
+Always scale inputs instead of only doing summation of samples.
+Beware of heavy clipping if inputs are not normalized prior or after filtering
+by this filter if this option is disabled. By default is enabled.
 @end table
 
 @subsection Commands
@@ -13382,6 +13382,28 @@ By default value is 0.
 
 The @code{hysteresis} filter also supports the @ref{framesync} options.
 
+@section identity
+
+Obtain the identity score between two input videos.
+
+This filter takes two input videos.
+
+Both input videos must have the same resolution and pixel format for
+this filter to work correctly. Also it assumes that both inputs
+have the same number of frames, which are compared one by one.
+
+The obtained per component, average, min and max identity score is printed through
+the logging system.
+
+The filter stores the calculated identity scores of each frame in frame metadata.
+
+In the below example the input file @file{main.mpg} being processed is compared
+with the reference file @file{ref.mpg}.
+
+@example
+ffmpeg -i main.mpg -i ref.mpg -lavfi identity -f null -
+@end example
+
 @section idet
 
 Detect video interlacing type.
@@ -14816,6 +14838,33 @@ This filter supports the following commands:
 Syntax is same as option with same name.
 @end table
 
+@section monochrome
+Convert video to gray using custom color filter.
+
+A description of the accepted options follows.
+
+@table @option
+@item cb
+Set the chroma blue spot. Allowed range is from -1 to 1.
+Default value is 0.
+
+@item cr
+Set the chroma red spot. Allowed range is from -1 to 1.
+Default value is 0.
+
+@item size
+Set the color filter size. Allowed range is from .1 to 10.
+Default value is 1.
+
+@item high
+Set the highlights strength. Allowed range is from 0 to 1.
+Default value is 0.
+@end table
+
+@subsection Commands
+
+This filter supports the all above options as @ref{commands}.
+
 @section mpdecimate
 
 Drop frames that do not differ greatly from the previous frame in
@@ -14854,6 +14903,27 @@ Default value for @option{hi} is 64*12, default value for @option{lo} is
 64*5, and default value for @option{frac} is 0.33.
 @end table
 
+@section msad
+
+Obtain the MSAD (Mean Sum of Absolute Differences) between two input videos.
+
+This filter takes two input videos.
+
+Both input videos must have the same resolution and pixel format for
+this filter to work correctly. Also it assumes that both inputs
+have the same number of frames, which are compared one by one.
+
+The obtained per component, average, min and max MSAD is printed through
+the logging system.
+
+The filter stores the calculated MSAD of each frame in frame metadata.
+
+In the below example the input file @file{main.mpg} being processed is compared
+with the reference file @file{ref.mpg}.
+
+@example
+ffmpeg -i main.mpg -i ref.mpg -lavfi msad -f null -
+@end example
 
 @section negate
 
@@ -16191,6 +16261,10 @@ Set window X position, relative offset on X axis.
 Set window Y position, relative offset on Y axis.
 @end table
 
+@subsection Commands
+
+This filter supports same @ref{commands} as options.
+
 @section pp
 
 Enable the specified chain of postprocessing subfilters using libpostproc. This
@@ -21235,6 +21309,27 @@ otherwise colors will be less saturated, more towards gray.
 
 This filter supports the all above options as @ref{commands}.
 
+@section vif
+
+Obtain the average VIF (Visual Information Fidelity) between two input videos.
+
+This filter takes two input videos.
+
+Both input videos must have the same resolution and pixel format for
+this filter to work correctly. Also it assumes that both inputs
+have the same number of frames, which are compared one by one.
+
+The obtained average VIF score is printed through the logging system.
+
+The filter stores the calculated VIF score of each frame.
+
+In the below example the input file @file{main.mpg} being processed is compared
+with the reference file @file{ref.mpg}.
+
+@example
+ffmpeg -i main.mpg -i ref.mpg -lavfi vif -f null -
+@end example
+
 @anchor{vignette}
 @section vignette
 
@@ -22075,7 +22170,7 @@ Set the x and y expression. Default is 0.
 @item d
 Set the duration expression in number of frames.
 This sets for how many number of frames effect will last for
-single input image.
+single input image. Default is 90.
 
 @item s
 Set the output image size, default is 'hd720'.