from colorspace filter
a11757d avfilter/showcqt: add csp option
doc/filters.texi | 26 +++++++++++++++++++++
libavfilter/avf_showcqt.c | 56 +++++++++++++++++++++++++++++++++++++++++----
libavfilter/avf_showcqt.h | 2 ++
3 files changed, 79 insertions(+), 5 deletions(-)