lavfi: add an chromaber_vulkan filter

This commit adds a chromatic aberration filter for Vulkan that attempts to
emulate a lens chromatic aberration effect.
For a YUV frame it will instead shift the chroma channels, providing a
simple approximation.

configure

@@ -3469,6 +3469,7 @@ bm3d_filter_select="dct"
 boxblur_filter_deps="gpl"
 boxblur_opencl_filter_deps="opencl gpl"
 bs2b_filter_deps="libbs2b"
+chromaber_vulkan_filter_deps="vulkan libglslang"
 colorkey_opencl_filter_deps="opencl"
 colormatrix_filter_deps="gpl"
 convolution_opencl_filter_deps="opencl"

libavfilter/Makefile

@@ -176,6 +176,7 @@ OBJS-$(CONFIG_BOXBLUR_FILTER)                += vf_boxblur.o boxblur.o
 OBJS-$(CONFIG_BOXBLUR_OPENCL_FILTER)         += vf_avgblur_opencl.o opencl.o \
                                                 opencl/avgblur.o boxblur.o
 OBJS-$(CONFIG_BWDIF_FILTER)                  += vf_bwdif.o yadif_common.o
+OBJS-$(CONFIG_CHROMABER_VULKAN_FILTER)       += vf_chromaber_vulkan.o vulkan.o
 OBJS-$(CONFIG_CHROMAHOLD_FILTER)             += vf_chromakey.o
 OBJS-$(CONFIG_CHROMAKEY_FILTER)              += vf_chromakey.o
 OBJS-$(CONFIG_CHROMASHIFT_FILTER)            += vf_chromashift.o

libavfilter/allfilters.c

@@ -88,6 +88,7 @@ extern AVFilter ff_af_bandreject;
 extern AVFilter ff_af_bass;
 extern AVFilter ff_af_biquad;
 extern AVFilter ff_af_bs2b;
+extern AVFilter ff_vf_chromaber_vulkan;
 extern AVFilter ff_af_channelmap;
 extern AVFilter ff_af_channelsplit;
 extern AVFilter ff_af_chorus;