qdm2_fft_init_coefficient 1418 libavcodec/qdm2.c             qdm2_fft_init_coefficient(q, sub_packet, offset, duration, channel, exp, phase);
qdm2_fft_init_coefficient 1420 libavcodec/qdm2.c                 qdm2_fft_init_coefficient(q, sub_packet, offset, duration, (1 - channel), stereo_exp, stereo_phase);