draw_sono        1187 libavfilter/avf_showcqt.c             s->draw_sono(out, s->sono_frame, s->bar_h + s->axis_h, s->sono_idx);
draw_sono        1408 libavfilter/avf_showcqt.c     s->draw_sono = draw_sono;
draw_sono          85 libavfilter/avf_showcqt.h     void                (*draw_sono)(AVFrame *out, AVFrame *sono, int off, int idx);