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src/sndfile.c: Fix SFC_SET_SCALE_FLOAT_INT_READ

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Before this fix it was possible for a the float/double to short/int
conversion to cause wrap-around distortion.
This commit is contained in:
Erik de Castro Lopo 2015-10-06 20:01:24 +11:00
parent 4b14e45190
commit d87b2319b0
1 changed files with 2 additions and 1 deletions
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src/sndfile.c
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@ -964,7 +964,8 @@ sf_command (SNDFILE *sndfile, int command, void *data, int datasize)
psf->float_int_mult = (datasize != 0) ? SF_TRUE : SF_FALSE ;
if (psf->float_int_mult && psf->float_max < 0.0)
psf->float_max = psf_calc_signal_max (psf, SF_FALSE) ;
/* Scale to prevent wrap-around distortion. */
psf->float_max = (32768.0 / 32767.0) * psf_calc_signal_max (psf, SF_FALSE) ;
return old_value ;
case SFC_SET_SCALE_INT_FLOAT_WRITE :