ff_determine_signal_peak   51 libavfilter/colorspace.h double ff_determine_signal_peak(AVFrame *in);
ff_determine_signal_peak  257 libavfilter/vf_tonemap.c         peak = ff_determine_signal_peak(in);
ff_determine_signal_peak  369 libavfilter/vf_tonemap_opencl.c         peak = ff_determine_signal_peak(input);