ff_iir_filter_init_coeffs  337 libavcodec/iirfilter.c     fcoeffs = ff_iir_filter_init_coeffs(NULL, FF_FILTER_TYPE_BUTTERWORTH,
ff_iir_filter_init_coeffs   87 libavcodec/iirfilter.h struct FFIIRFilterCoeffs* ff_iir_filter_init_coeffs(void *avc,
ff_iir_filter_init_coeffs  111 libavcodec/psymodel.c     ctx->fcoeffs = ff_iir_filter_init_coeffs(avctx, FF_FILTER_TYPE_BUTTERWORTH,