lavfi: add lut3d filter.

Fixes part of Ticket #2517.

Changelog

@@ -52,6 +52,7 @@ version <next>:
 - Escape 130 video decoder
 - FTP protocol support
 - V4L2 output device
+- 3D LUT filter (lut3d)
 
 
 version 1.2:

doc/filters.texi

@@ -4596,6 +4596,42 @@ kerndeint=map=1
 @end example
 @end itemize
 
+@section lut3d
+
+Apply a 3D LUT to an input video.
+
+The filter accepts the following options:
+
+@table @option
+@item file
+Set the 3D LUT file name.
+
+Currently supported formats:
+@table @samp
+@item 3dl
+AfterEffects
+@item cube
+Iridas
+@item dat
+DaVinci
+@item m3d
+Pandora
+@end table
+@item interp
+Select interpolation mode.
+
+Available values are:
+
+@table @samp
+@item nearest
+Use values from the nearest defined point.
+@item trilinear
+Interpolate values using the 8 points defining a cube.
+@item tetrahedral
+Interpolate values using a tetrahedron.
+@end table
+@end table
+
 @section lut, lutrgb, lutyuv
 
 Compute a look-up table for binding each pixel component input value

libavfilter/Makefile

@@ -145,6 +145,7 @@ OBJS-$(CONFIG_IL_FILTER)                     += vf_il.o
 OBJS-$(CONFIG_INTERLACE_FILTER)              += vf_interlace.o
 OBJS-$(CONFIG_INTERLEAVE_FILTER)             += f_interleave.o
 OBJS-$(CONFIG_KERNDEINT_FILTER)              += vf_kerndeint.o
+OBJS-$(CONFIG_LUT3D_FILTER)                  += vf_lut3d.o
 OBJS-$(CONFIG_LUT_FILTER)                    += vf_lut.o
 OBJS-$(CONFIG_LUTRGB_FILTER)                 += vf_lut.o
 OBJS-$(CONFIG_LUTYUV_FILTER)                 += vf_lut.o

libavfilter/allfilters.c

@@ -143,6 +143,7 @@ void avfilter_register_all(void)
     REGISTER_FILTER(INTERLACE,      interlace,      vf);
     REGISTER_FILTER(INTERLEAVE,     interleave,     vf);
     REGISTER_FILTER(KERNDEINT,      kerndeint,      vf);
+    REGISTER_FILTER(LUT3D,          lut3d,          vf);
     REGISTER_FILTER(LUT,            lut,            vf);
     REGISTER_FILTER(LUTRGB,         lutrgb,         vf);
     REGISTER_FILTER(LUTYUV,         lutyuv,         vf);

libavfilter/version.h

@@ -30,8 +30,8 @@
 #include "libavutil/avutil.h"
 
 #define LIBAVFILTER_VERSION_MAJOR  3
-#define LIBAVFILTER_VERSION_MINOR  68
-#define LIBAVFILTER_VERSION_MICRO 103
+#define LIBAVFILTER_VERSION_MINOR  69
+#define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \
                                                LIBAVFILTER_VERSION_MINOR, \