comparison xtract/libxtract.h @ 113:72a9a393d5bd

- 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

     XTRACT_SPREAD,
     XTRACT_ZCR,
     XTRACT_ROLLOFF,
     XTRACT_LOUDNESS,
     XTRACT_FLATNESS,
+    XTRACT_FLATNESS_DB,
     XTRACT_TONALITY,
     XTRACT_CREST,
     XTRACT_NOISINESS,
     XTRACT_RMS_AMPLITUDE,
     XTRACT_SPECTRAL_INHARMONICITY,

 enum xtract_return_codes_ {
     XTRACT_SUCCESS,
     XTRACT_MALLOC_FAILED,
     XTRACT_BAD_ARGV,
     XTRACT_BAD_VECTOR_SIZE,
-    XTRACT_NO_RESULT,
+    XTRACT_DENORMAL_FOUND,
+    XTRACT_NO_RESULT, /* This usually occurs when the correct calculation cannot take place because required data is missing or would result in a NaN or infinity/-infinity. Under these curcumstances 0.f is usually given by *result */
     XTRACT_FEATURE_NOT_IMPLEMENTED
 };
 
 /** \brief Enumeration of spectrum types */
 enum xtract_spectrum_ {