avfilter/showcqt: add font option

Multimedia / FFmpeg - Muhammad Faiz [gmail.com] - 17 October 2016 12:47 UTC

this is fontconfig pattern

923488b avfilter/showcqt: add font option
doc/filters.texi | 10 ++++++
libavfilter/avf_showcqt.c | 85 +++++++++++++++++++++++++++++++++++++++++----
libavfilter/avf_showcqt.h | 1 +
3 files changed, 89 insertions(+), 7 deletions(-)

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