avfilter: add hsvkey and hsvhold video filters

Multimedia / FFmpeg - Paul B Mahol [gmail.com] - 25 August 2021 18:43 UTC

02aa7dc423 avfilter: add hsvkey and hsvhold video filters
Changelog | 1 +
doc/filters.texi | 76 ++++++++++
libavfilter/Makefile | 2 +
libavfilter/allfilters.c | 2 +
libavfilter/version.h | 2 +-
libavfilter/vf_hsvkey.c | 380 +++++++++++++++++++++++++++++++++++++++++++++++
6 files changed, 462 insertions(+), 1 deletion(-)

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