diff options
| -rw-r--r-- | sound/rate.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sound/rate.cpp b/sound/rate.cpp index 105b5d5d26..5944e64694 100644 --- a/sound/rate.cpp +++ b/sound/rate.cpp @@ -196,7 +196,11 @@ LinearRateConverter<stereo, reverseStereo>::LinearRateConverter(st_rate_t inrate opos = FRAC_ONE; - /* increment */ + // Compute the linear interpolation increment. + // This will overflow if inrate >= 2^16, and underflow if outrate >= 2^16. + // Also, if the quotient of the two rate becomes too small / too big, that + // would cause problems, but since we rarely scale from 1 to 65536 Hz or vice + // versa, I think we can live with that limiation ;-). opos_inc = (inrate << FRAC_BITS) / outrate; ilast0 = ilast1 = 0; |