diff options
Diffstat (limited to 'src/libFLAC/lpc.c')
| -rw-r--r-- | src/libFLAC/lpc.c | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/src/libFLAC/lpc.c b/src/libFLAC/lpc.c index 531247b5..53c3082e 100644 --- a/src/libFLAC/lpc.c +++ b/src/libFLAC/lpc.c @@ -63,19 +63,19 @@ static inline long int lround(double x) { /* If this fails, we are in the presence of a mid 90's compiler, move along... */ #endif -void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], unsigned data_len) +void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len) { - unsigned i; + uint32_t i; for(i = 0; i < data_len; i++) out[i] = in[i] * window[i]; } -void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_len, unsigned lag, FLAC__real autoc[]) +void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], uint32_t data_len, uint32_t lag, FLAC__real autoc[]) { /* a readable, but slower, version */ #if 0 FLAC__real d; - unsigned i; + uint32_t i; FLAC__ASSERT(lag > 0); FLAC__ASSERT(lag <= data_len); @@ -99,8 +99,8 @@ void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_le * ('data_len' is usually much larger than 'lag') */ FLAC__real d; - unsigned sample, coeff; - const unsigned limit = data_len - lag; + uint32_t sample, coeff; + const uint32_t limit = data_len - lag; FLAC__ASSERT(lag > 0); FLAC__ASSERT(lag <= data_len); @@ -119,9 +119,9 @@ void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], unsigned data_le } } -void FLAC__lpc_compute_lp_coefficients(const FLAC__real autoc[], unsigned *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], double error[]) +void FLAC__lpc_compute_lp_coefficients(const FLAC__real autoc[], uint32_t *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], double error[]) { - unsigned i, j; + uint32_t i, j; double r, err, lpc[FLAC__MAX_LPC_ORDER]; FLAC__ASSERT(0 != max_order); @@ -163,9 +163,9 @@ void FLAC__lpc_compute_lp_coefficients(const FLAC__real autoc[], unsigned *max_o } } -int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order, unsigned precision, FLAC__int32 qlp_coeff[], int *shift) +int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], uint32_t order, uint32_t precision, FLAC__int32 qlp_coeff[], int *shift) { - unsigned i; + uint32_t i; double cmax; FLAC__int32 qmax, qmin; @@ -264,11 +264,11 @@ int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], unsigned order, #pragma warning ( disable : 4028 ) #endif -void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 * flac_restrict data, unsigned data_len, const FLAC__int32 * flac_restrict qlp_coeff, unsigned order, int lp_quantization, FLAC__int32 * flac_restrict residual) +void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 * flac_restrict data, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict residual) #if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS) { FLAC__int64 sumo; - unsigned i, j; + uint32_t i, j; FLAC__int32 sum; const FLAC__int32 *history; @@ -525,10 +525,10 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 * flac_r } #endif -void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 * flac_restrict data, unsigned data_len, const FLAC__int32 * flac_restrict qlp_coeff, unsigned order, int lp_quantization, FLAC__int32 * flac_restrict residual) +void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 * flac_restrict data, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict residual) #if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS) { - unsigned i, j; + uint32_t i, j; FLAC__int64 sum; const FLAC__int32 *history; @@ -781,11 +781,11 @@ void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 * f #endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */ -void FLAC__lpc_restore_signal(const FLAC__int32 * flac_restrict residual, unsigned data_len, const FLAC__int32 * flac_restrict qlp_coeff, unsigned order, int lp_quantization, FLAC__int32 * flac_restrict data) +void FLAC__lpc_restore_signal(const FLAC__int32 * flac_restrict residual, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict data) #if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS) { FLAC__int64 sumo; - unsigned i, j; + uint32_t i, j; FLAC__int32 sum; const FLAC__int32 *r = residual, *history; @@ -1042,10 +1042,10 @@ void FLAC__lpc_restore_signal(const FLAC__int32 * flac_restrict residual, unsign } #endif -void FLAC__lpc_restore_signal_wide(const FLAC__int32 * flac_restrict residual, unsigned data_len, const FLAC__int32 * flac_restrict qlp_coeff, unsigned order, int lp_quantization, FLAC__int32 * flac_restrict data) +void FLAC__lpc_restore_signal_wide(const FLAC__int32 * flac_restrict residual, uint32_t data_len, const FLAC__int32 * flac_restrict qlp_coeff, uint32_t order, int lp_quantization, FLAC__int32 * flac_restrict data) #if defined(FLAC__OVERFLOW_DETECT) || !defined(FLAC__LPC_UNROLLED_FILTER_LOOPS) { - unsigned i, j; + uint32_t i, j; FLAC__int64 sum; const FLAC__int32 *r = residual, *history; @@ -1302,7 +1302,7 @@ void FLAC__lpc_restore_signal_wide(const FLAC__int32 * flac_restrict residual, u #ifndef FLAC__INTEGER_ONLY_LIBRARY -double FLAC__lpc_compute_expected_bits_per_residual_sample(double lpc_error, unsigned total_samples) +double FLAC__lpc_compute_expected_bits_per_residual_sample(double lpc_error, uint32_t total_samples) { double error_scale; @@ -1330,9 +1330,9 @@ double FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(doub } } -unsigned FLAC__lpc_compute_best_order(const double lpc_error[], unsigned max_order, unsigned total_samples, unsigned overhead_bits_per_order) +uint32_t FLAC__lpc_compute_best_order(const double lpc_error[], uint32_t max_order, uint32_t total_samples, uint32_t overhead_bits_per_order) { - unsigned order, indx, best_index; /* 'index' the index into lpc_error; index==order-1 since lpc_error[0] is for order==1, lpc_error[1] is for order==2, etc */ + uint32_t order, indx, best_index; /* 'index' the index into lpc_error; index==order-1 since lpc_error[0] is for order==1, lpc_error[1] is for order==2, etc */ double bits, best_bits, error_scale; FLAC__ASSERT(max_order > 0); @@ -1341,7 +1341,7 @@ unsigned FLAC__lpc_compute_best_order(const double lpc_error[], unsigned max_ord error_scale = 0.5 / (double)total_samples; best_index = 0; - best_bits = (unsigned)(-1); + best_bits = (uint32_t)(-1); for(indx = 0, order = 1; indx < max_order; indx++, order++) { bits = FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(lpc_error[indx], error_scale) * (double)(total_samples - order) + (double)(order * overhead_bits_per_order); |