Enforce no-null-args to FFTs; avoid corresponding potential crash in formant preservation code

2012-10-28 10:23:42 +00:00
parent 39a311b383
commit 82d1f570da
3 changed files with 63 additions and 3 deletions
--- a/src/StretcherProcess.cpp
+++ b/src/StretcherProcess.cpp
@@ -930,7 +930,8 @@ RubberBandStretcher::Impl::formantShiftChunk(size_t channel)

    v_scale(dblbuf, factor, cutoff);

-    cd.fft->forward(dblbuf, envelope, 0);
+    double *spare = (double *)alloca((hs + 1) * sizeof(double));
+    cd.fft->forward(dblbuf, envelope, spare);

    v_exp(envelope, hs + 1);
    v_divide(mag, envelope, hs + 1);