FRAMESYNC_DEFINE_CLASS(convolve, ConvolveContext, fs);
-AVFilter ff_vf_convolve = {
+const AVFilter ff_vf_convolve = {
.name = "convolve",
.description = NULL_IF_CONFIG_SMALL("Convolve first video stream with second video stream."),
.preinit = convolve_framesync_preinit,
FRAMESYNC_DEFINE_CLASS(deconvolve, ConvolveContext, fs);
-AVFilter ff_vf_deconvolve = {
+const AVFilter ff_vf_deconvolve = {
.name = "deconvolve",
.description = NULL_IF_CONFIG_SMALL("Deconvolve first video stream with second video stream."),
.preinit = deconvolve_framesync_preinit,