fft_channelizer: use volk_32fc_s32fc_multiply2_32fc

muccc · Nov 17, 2024 · 0601b38 · 0601b38
1 parent 40315dd
commit 0601b38
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/lib/fft_channelizer_impl.cc b/lib/fft_channelizer_impl.cc
@@ -342,17 +342,19 @@ int fft_channelizer_impl::work(int noutput_items,
                 // Construct the input to the reverse FFT. We need to copy the two halves
                 // as the output of the initial FFT still is [DC, Positive Freq, Negative
                 // Freq].
-                volk_32fc_s32fc_multiply_32fc(
+
+                gr_complex scale = 1. / d_fft_size;
+                volk_32fc_s32fc_multiply2_32fc(
                     &d_ifft.get_inbuf()[0],
                     &d_fft.get_outbuf()[positive_offset(
                         d_fft_size, d_output_step, j, d_ifft_size)],
-                    1. / d_fft_size,
+                    &scale,
                     d_ifft_size / 2);
-                volk_32fc_s32fc_multiply_32fc(
+                volk_32fc_s32fc_multiply2_32fc(
                     &d_ifft.get_inbuf()[d_ifft_size / 2],
                     &d_fft.get_outbuf()[negative_offset(
                         d_fft_size, d_output_step, j, d_ifft_size)],
-                    1. / d_fft_size,
+                    &scale,
                     d_ifft_size / 2);
                 d_ifft.execute();