It accepts the following parameters:
@table @option
-@item z
+@item zeros, z
Set numerator/zeros coefficients.
-@item p
+@item poles, p
Set denominator/poles coefficients.
-@item k
+@item gains, k
Set channels gains.
@item dry_gain
@item wet_gain
Set output gain.
-@item f
+@item format, f
Set coefficients format.
@table @samp
@item tf
-transfer function
+digital transfer function
@item zp
Z-plane zeros/poles, cartesian (default)
@item pr
Z-plane zeros/poles, polar radians
@item pd
Z-plane zeros/poles, polar degrees
+@item sp
+S-plane zeros/poles
@end table
-@item r
+@item process, r
Set kind of processing.
Can be @code{d} - direct or @code{s} - serial cascading. Default is @code{s}.
-@item e
+@item precision, e
Set filtering precision.
@table @samp
16-bit integers
@end table
+@item normalize, n
+Normalize filter coefficients, by default is enabled.
+Enabling it will normalize magnitude response at DC to 0dB.
+
@item mix
How much to use filtered signal in output. Default is 1.
Range is between 0 and 1.
@item normalize, n
Normalize biquad coefficients, by default is disabled.
Enabling it will normalize magnitude response at DC to 0dB.
+
+@item order, o
+Set the filter order, can be 1 or 2. Default is 2.
@end table
@subsection Commands
This sets cut off frequency of low shelf filter. Default is cut off near
1550 Hz. With range set to 1 cut off frequency is set to 2100 Hz.
+@item slope
+Set curve slope of low shelf filter. Default is 0.5.
+Allowed range is from 0.01 to 1.
+
@item level_in
Set input gain. Default is 0.9.
Set output gain. Default is 1.
@end table
+@subsection Commands
+
+This filter supports the all above options as @ref{commands}.
+
@section crystalizer
Simple algorithm to expand audio dynamic range.
supposed to be generated forever.
Only used if plugin have zero inputs.
+@item latency, l
+Enable latency compensation, by default is disabled.
+Only used if plugin have inputs.
@end table
@subsection Examples
Set display number format. Can be @code{hex}, or @code{dec}. Default is @code{hex}.
@end table
+@section dblur
+Apply Directional blur filter.
+
+The filter accepts the following options:
+
+@table @option
+@item angle
+Set angle of directional blur. Default is @code{45}.
+
+@item radius
+Set radius of directional blur. Default is @code{5}.
+
+@item planes
+Set which planes to filter. By default all planes are filtered.
+@end table
+
+@subsection Commands
+This filter supports same @ref{commands} as options.
+The command accepts the same syntax of the corresponding option.
+
+If the specified expression is not valid, it is kept at its current
+value.
+
@section dctdnoiz
Denoise frames using 2D DCT (frequency domain filtering).
need to install the TensorFlow for C library (see
@url{https://www.tensorflow.org/install/install_c}) and configure FFmpeg with
@code{--enable-libtensorflow}
+
+@item openvino
+OpenVINO backend. To enable this backend you
+need to build and install the OpenVINO for C library (see
+@url{https://github.com/openvinotoolkit/openvino/blob/master/build-instruction.md}) and configure FFmpeg with
+@code{--enable-libopenvino} (--extra-cflags=-I... --extra-ldflags=-L... might
+be needed if the header files and libraries are not installed into system path)
+
@end table
Default value is @samp{native}.
@item model
Set path to model file specifying network architecture and its parameters.
-Note that different backends use different file formats. TensorFlow and native
+Note that different backends use different file formats. TensorFlow, OpenVINO and native
backend can load files for only its format.
Native model file (.model) can be generated from TensorFlow model file (.pb) by using tools/python/convert.py
Default method is @samp{fdiff}.
@item scd_threshold
-Scene change detection threshold. Default is @code{5.0}.
+Scene change detection threshold. Default is @code{10.}.
@end table
@section mix
@item yuv420
force YUV420 output
+@item yuv420p10
+force YUV420p10 output
+
@item yuv422
force YUV422 output
+@item yuv422p10
+force YUV422p10 output
+
@item yuv444
force YUV444 output
Set the vertical scrolling speed.
@end table
+@anchor{scdet}
+@section scdet
+
+Detect video scene change.
+
+This filter sets frame metadata with mafd between frame, the scene score, and
+forward the frame to the next filter, so they can use these metadata to detect
+scene change or others.
+
+In addition, this filter logs a message and sets frame metadata when it detects
+a scene change by @option{threshold}.
+
+@code{lavfi.scd.mafd} metadata keys are set with mafd for every frame.
+
+@code{lavfi.scd.score} metadata keys are set with scene change score for every frame
+to detect scene change.
+
+@code{lavfi.scd.time} metadata keys are set with current filtered frame time which
+detect scene change with @option{threshold}.
+
+The filter accepts the following options:
+
+@table @option
+@item threshold, t
+Set the scene change detection threshold as a percentage of maximum change. Good
+values are in the @code{[8.0, 14.0]} range. The range for @option{threshold} is
+@code{[0., 100.]}.
+
+Default value is @code{10.}.
+
+@item sc_pass, s
+Set the flag to pass scene change frames to the next filter. Default value is @code{0}
+You can enable it if you want to get snapshot of scene change frames only.
+@end table
+
@anchor{selectivecolor}
@section selectivecolor
To make the subtitles stream from @file{sub.srt} appear in 80% transparent blue
@code{DejaVu Serif}, use:
@example
-subtitles=sub.srt:force_style='FontName=DejaVu Serif,PrimaryColour=&HCCFF0000'
+subtitles=sub.srt:force_style='Fontname=DejaVu Serif,PrimaryColour=&HCCFF0000'
@end example
@section super2xsai
@end example
@end itemize
+@anchor{tile}
@section tile
Tile several successive frames together.
+The @ref{untile} filter can do the reverse.
+
The filter accepts the following options:
@table @option
@end example
@end itemize
+@anchor{untile}
+@section untile
+
+Decompose a video made of tiled images into the individual images.
+
+The frame rate of the output video is the frame rate of the input video
+multiplied by the number of tiles.
+
+This filter does the reverse of @ref{tile}.
+
+The filter accepts the following options:
+
+@table @option
+
+@item layout
+Set the grid size (i.e. the number of lines and columns). For the syntax of
+this option, check the
+@ref{video size syntax,,"Video size" section in the ffmpeg-utils manual,ffmpeg-utils}.
+@end table
+
+@subsection Examples
+
+@itemize
+@item
+Produce a 1-second video from a still image file made of 25 frames stacked
+vertically, like an analogic film reel:
+@example
+ffmpeg -r 1 -i image.jpg -vf untile=1x25 movie.mkv
+@end example
+@end itemize
+
@section uspp
Apply ultra slow/simple postprocessing filter that compresses and decompresses
@item he
@item hequirect
Half equirectangular projection.
+
+@item equisolid
+Equisolid format.
+
+Format specific options:
+@table @option
+@item h_fov
+@item v_fov
+@item d_fov
+Set output horizontal/vertical/diagonal field of view. Values in degrees.
+
+If diagonal field of view is set it overrides horizontal and vertical field of view.
+
+@item ih_fov
+@item iv_fov
+@item id_fov
+Set input horizontal/vertical/diagonal field of view. Values in degrees.
+
+If diagonal field of view is set it overrides horizontal and vertical field of view.
+@end table
+
+@item og
+Orthographic format.
+
+Format specific options:
+@table @option
+@item h_fov
+@item v_fov
+@item d_fov
+Set output horizontal/vertical/diagonal field of view. Values in degrees.
+
+If diagonal field of view is set it overrides horizontal and vertical field of view.
+
+@item ih_fov
+@item iv_fov
+@item id_fov
+Set input horizontal/vertical/diagonal field of view. Values in degrees.
+
+If diagonal field of view is set it overrides horizontal and vertical field of view.
+@end table
@end table
@item interp
@item planes
A list of the planes to process. By default all planes are processed.
+
+@item type
+The threshold type the filter will use.
+
+It accepts the following values:
+@table @samp
+@item universal
+Threshold used is same for all decompositions.
+
+@item bayes
+Threshold used depends also on each decomposition coefficients.
+@end table
+
+Default is universal.
@end table
@section vectorscope
@item on
Output frame count.
+@item in_time, it
+The input timestamp expressed in seconds. It's NAN if the input timestamp is unknown.
+
+@item out_time, time, ot
+The output timestamp expressed in seconds.
+
@item x
@item y
Last calculated 'x' and 'y' position from 'x' and 'y' expression
@itemize
@item
-Zoom-in up to 1.5 and pan at same time to some spot near center of picture:
+Zoom in up to 1.5x and pan at same time to some spot near center of picture:
@example
zoompan=z='min(zoom+0.0015,1.5)':d=700:x='if(gte(zoom,1.5),x,x+1/a)':y='if(gte(zoom,1.5),y,y+1)':s=640x360
@end example
@item
-Zoom-in up to 1.5 and pan always at center of picture:
+Zoom in up to 1.5x and pan always at center of picture:
@example
zoompan=z='min(zoom+0.0015,1.5)':d=700:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)'
@end example
@example
zoompan=z='min(max(zoom,pzoom)+0.0015,1.5)':d=1:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)'
@end example
+
+@item
+Zoom in 2x into center of picture only for the first second of the input video:
+@example
+zoompan=z='if(between(in_time,0,1),2,1)':d=1:x='iw/2-(iw/zoom/2)':y='ih/2-(ih/zoom/2)'
+@end example
+
@end itemize
@anchor{zscale}
@end itemize
+@section gradients
+Generate several gradients.
+
+@table @option
+@item size, s
+Set frame size. For the syntax of this option, check the @ref{video size syntax,,"Video
+size" section in the ffmpeg-utils manual,ffmpeg-utils}. Default value is "640x480".
+
+@item rate, r
+Set frame rate, expressed as number of frames per second. Default
+value is "25".
+
+@item c0, c1, c2, c3, c4, c5, c6, c7
+Set 8 colors. Default values for colors is to pick random one.
+
+@item x0, y0, y0, y1
+Set gradient line source and destination points. If negative or out of range, random ones
+are picked.
+
+@item nb_colors, n
+Set number of colors to use at once. Allowed range is from 2 to 8. Default value is 2.
+
+@item seed
+Set seed for picking gradient line points.
+@end table
+
+
@section mandelbrot
Generate a Mandelbrot set fractal, and progressively zoom towards the
projects / ffmpeg / blobdiff