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finished integerized flavor of library; sections with floating point are either #ifdef'd out or written in fixed-point

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Josh Coalson
2004-11-09 01:34:01 +00:00
parent 8f64899d97
commit 5f2b46d031
9 changed files with 363 additions and 28 deletions
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8
src/libFLAC/lpc.c
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@@ -38,6 +38,8 @@
#include <stdio.h>
#endif
#ifndef FLAC__INTEGER_ONLY_LIBRARY
#ifndef M_LN2
/* math.h in VC++ doesn't seem to have this (how Microsoft is that?) */
#define M_LN2 0.69314718055994530942
@@ -287,6 +289,8 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 dat
}
}
#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
void FLAC__lpc_restore_signal(const FLAC__int32 residual[], unsigned data_len, const FLAC__int32 qlp_coeff[], unsigned order, int lp_quantization, FLAC__int32 data[])
{
#ifdef FLAC__OVERFLOW_DETECT
@@ -369,6 +373,8 @@ void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], unsigned data_l
}
}
#ifndef FLAC__INTEGER_ONLY_LIBRARY
FLAC__double FLAC__lpc_compute_expected_bits_per_residual_sample(FLAC__double lpc_error, unsigned total_samples)
{
FLAC__double error_scale;
@@ -420,3 +426,5 @@ unsigned FLAC__lpc_compute_best_order(const FLAC__double lpc_error[], unsigned m
return best_order+1; /* +1 since index of lpc_error[] is order-1 */
}
#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */