avfilter: add lut1d filter

Changelog

@@ -21,6 +21,7 @@ version <next>:
 - Brooktree ProSumer video decoder
 - MatchWare Screen Capture Codec decoder
 - WinCam Motion Video decoder
+- 1D LUT filter (lut1d)
 
 
 version 4.0:

doc/filters.texi

@@ -10962,6 +10962,37 @@ Set maximal size in number of frames. Default is 0.
 Set first frame of loop. Default is 0.
 @end table
 
+@section lut1d
+
+Apply a 1D LUT to an input video.
+
+The filter accepts the following options:
+
+@table @option
+@item file
+Set the 1D LUT file name.
+
+Currently supported formats:
+@table @samp
+@item cube
+Iridas
+@end table
+
+@item interp
+Select interpolation mode.
+
+Available values are:
+
+@table @samp
+@item nearest
+Use values from the nearest defined point.
+@item linear
+Interpolate values using the linear interpolation.
+@item cubic
+Interpolate values using the cubic interpolation.
+@end table
+@end table
+
 @anchor{lut3d}
 @section lut3d
 

libavfilter/Makefile

@@ -258,6 +258,7 @@ OBJS-$(CONFIG_LIBVMAF_FILTER)                += vf_libvmaf.o framesync.o
 OBJS-$(CONFIG_LIMITER_FILTER)                += vf_limiter.o
 OBJS-$(CONFIG_LOOP_FILTER)                   += f_loop.o
 OBJS-$(CONFIG_LUMAKEY_FILTER)                += vf_lumakey.o
+OBJS-$(CONFIG_LUT1D_FILTER)                  += vf_lut3d.o
 OBJS-$(CONFIG_LUT_FILTER)                    += vf_lut.o
 OBJS-$(CONFIG_LUT2_FILTER)                   += vf_lut2.o framesync.o
 OBJS-$(CONFIG_LUT3D_FILTER)                  += vf_lut3d.o

libavfilter/allfilters.c

@@ -246,6 +246,7 @@ extern AVFilter ff_vf_limiter;
 extern AVFilter ff_vf_loop;
 extern AVFilter ff_vf_lumakey;
 extern AVFilter ff_vf_lut;
+extern AVFilter ff_vf_lut1d;
 extern AVFilter ff_vf_lut2;
 extern AVFilter ff_vf_lut3d;
 extern AVFilter ff_vf_lutrgb;

libavfilter/version.h

@@ -30,7 +30,7 @@
 #include "libavutil/version.h"
 
 #define LIBAVFILTER_VERSION_MAJOR   7
-#define LIBAVFILTER_VERSION_MINOR  26
+#define LIBAVFILTER_VERSION_MINOR  27
 #define LIBAVFILTER_VERSION_MICRO 100
 
 #define LIBAVFILTER_VERSION_INT AV_VERSION_INT(LIBAVFILTER_VERSION_MAJOR, \