- Fixed bugs in xtract_flatness(), or at least added necessary

documentation and error checking to avoid problems
- Added xtract_is_denormal() helper function and XTRACT_DENORMAL_FOUND
return code
- Replaced all instances of log, sqrt, exp etc. with respective
floating point counterparts (logf etc.)
- Added check for architecture endianness to configure script
- Bug fix to PD example, now no longer crashes if no arguments are
given
- Minor documentation updates

1 files changed, 2 insertions, 0 deletions

diff --git a/xtract/xtract_vector.h b/xtract/xtract_vector.h
index e758f10..07bf176 100644
--- a/xtract/xtract_vector.h
+++ b/xtract/xtract_vector.h
@@ -43,6 +43,8 @@ extern "C" {
  *
  * The magnitude/power coefficients are scaled to the range 0-1 so that for a given coefficient x, 0 <= x <= 1
  *
+ * \note Before calling xtract_spectrum(), the FFT must be initialised by calling xtract_init_fft(N, XTRACT_SPECTRUM)
+ *
  */
 int xtract_spectrum(const float *data, const int N, const void *argv, float *result);