MODE_WAVEFORM      61 libavfilter/vf_histogram.c     { "waveform", "per row/column luminance graph", 0, AV_OPT_TYPE_CONST, {.i64=MODE_WAVEFORM}, 0, 0, FLAGS, "mode" },
MODE_WAVEFORM     110 libavfilter/vf_histogram.c     case MODE_WAVEFORM:
MODE_WAVEFORM     165 libavfilter/vf_histogram.c     case MODE_WAVEFORM:
MODE_WAVEFORM     300 libavfilter/vf_histogram.c     case MODE_WAVEFORM: