FLAT16_FUNC      1092 libavfilter/vf_waveform.c FLAT16_FUNC(column,        1, 0)
FLAT16_FUNC      1093 libavfilter/vf_waveform.c FLAT16_FUNC(row_mirror,    0, 1)
FLAT16_FUNC      1094 libavfilter/vf_waveform.c FLAT16_FUNC(row,           0, 0)