aptx_qmf_convolution   46 libavcodec/aptxdec.c         samples[i] = aptx_qmf_convolution(&signal[i], coeffs[i], shift);
aptx_qmf_convolution   44 libavcodec/aptxenc.c         subbands[i] = aptx_qmf_convolution(&signal[i], coeffs[i], shift);