avfilter: add atadenoise

Changelog

@@ -28,6 +28,7 @@ version <next>:
 - bitstream filter for converting HEVC from MP4 to Annex B
 - acrossfade audio filter
 - allyuv video source
+- atadenoise video filter
 
 
 version 2.7:

doc/filters.texi

@@ -2967,6 +2967,44 @@ Slower shaper using OpenType for substitutions and positioning
 The default is @code{auto}.
 @end table
 
+@section atadenoise
+Apply an Adaptive Temporal Averaging Denoiser to the video input.
+
+The filter accepts the following options:
+
+@table @option
+@item 0a
+Set threshold A for 1st plane. Default is 0.02.
+Valid range is 0 to 0.3.
+
+@item 0b
+Set threshold B for 1st plane. Default is 0.04.
+Valid range is 0 to 5.
+
+@item 1a
+Set threshold A for 2nd plane. Default is 0.02.
+Valid range is 0 to 0.3.
+
+@item 1b
+Set threshold B for 2nd plane. Default is 0.04.
+Valid range is 0 to 5.
+
+@item 2a
+Set threshold A for 3rd plane. Default is 0.02.
+Valid range is 0 to 0.3.
+
+@item 2b
+Set threshold B for 3rd plane. Default is 0.04.
+Valid range is 0 to 5.
+
+Threshold A is designed to react on abrupt changes in the input signal and
+threshold B is designed to react on continuous changes in the input signal.
+
+@item s
+Set number of frames filter will use for averaging. Default is 33. Must be odd
+number in range [5, 129].
+@end table
+
 @section bbox
 
 Compute the bounding box for the non-black pixels in the input frame

libavfilter/Makefile

@@ -98,6 +98,7 @@ OBJS-$(CONFIG_ANULLSINK_FILTER)              += asink_anullsink.o
 OBJS-$(CONFIG_ASS_FILTER)                    += vf_subtitles.o
 OBJS-$(CONFIG_ALPHAEXTRACT_FILTER)           += vf_extractplanes.o
 OBJS-$(CONFIG_ALPHAMERGE_FILTER)             += vf_alphamerge.o
+OBJS-$(CONFIG_ATADENOISE_FILTER)             += vf_atadenoise.o
 OBJS-$(CONFIG_BBOX_FILTER)                   += bbox.o vf_bbox.o
 OBJS-$(CONFIG_BLACKDETECT_FILTER)            += vf_blackdetect.o
 OBJS-$(CONFIG_BLACKFRAME_FILTER)             += vf_blackframe.o

libavfilter/allfilters.c

@@ -113,6 +113,7 @@ void avfilter_register_all(void)
 
     REGISTER_FILTER(ALPHAEXTRACT,   alphaextract,   vf);
     REGISTER_FILTER(ALPHAMERGE,     alphamerge,     vf);
+    REGISTER_FILTER(ATADENOISE,     atadenoise,     vf);
     REGISTER_FILTER(ASS,            ass,            vf);
     REGISTER_FILTER(BBOX,           bbox,           vf);
     REGISTER_FILTER(BLACKDETECT,    blackdetect,    vf);

libavfilter/version.h

@@ -30,7 +30,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  5
-#define LIBAVFILTER_VERSION_MINOR  31
+#define LIBAVFILTER_VERSION_MINOR  32
 #define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \