/**
* Evaluate the LPC filter coefficients from the reflection coefficients.
- * Does the inverse of the eq() function.
+ * Does the inverse of the eval_refl() function.
*/
-static void do_voice(const int *refl, int *coefs)
+static void eval_coefs(const int *refl, int *coefs)
{
int buffer[10];
int *b1 = buffer;
/**
* Evaluate the reflection coefficients from the filter coefficients.
- * Does the inverse of the do_voice() function.
+ * Does the inverse of the eval_coefs() function.
*
* @return 1 if one of the reflection coefficients is of magnitude greater than
* 4095, 0 if not.
*/
-static int eq(const int16_t *coefs, int *refl)
+static int eval_refl(const int16_t *coefs, int *refl)
{
int retval = 0;
int b, c, i;
for (x=0; x<30; x++)
decsp[x] = (a * ractx->lpc_coef[x] + b * ractx->lpc_coef_old[x])>> 2;
- if (eq(decsp, work)) {
+ if (eval_refl(decsp, work)) {
// The interpolated coefficients are unstable, copy either new or old
// coefficients
if (copynew)
// "<< 1"? Doesn't this make one value out of two of the table useless?
ractx->lpc_refl[i] = decodetable[i][get_bits(&gb, sizes[i]) << 1];
- do_voice(ractx->lpc_refl, ractx->lpc_coef);
+ eval_coefs(ractx->lpc_refl, ractx->lpc_coef);
energy = decodeval[get_bits(&gb, 5) << 1]; // Useless table entries?