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opus_pvq: remove outdated/incorrect comments and redundant variables

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Removes the last style issues with opus_pvq.c

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>
This commit is contained in:
Rostislav Pehlivanov 2017-04-26 23:28:16 +01:00
parent 4d59de3991
commit 18a0d9d7ad
1 changed files with 7 additions and 18 deletions
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25
libavcodec/opus_pvq.c
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@ -89,18 +89,16 @@ static void celt_exp_rotation_impl(float *X, uint32_t len, uint32_t stride,
Xptr = X;
for (i = 0; i < len - stride; i++) {
float x1, x2;
x1 = Xptr[0];
x2 = Xptr[stride];
float x1 = Xptr[0];
float x2 = Xptr[stride];
Xptr[stride] = c * x2 + s * x1;
*Xptr++ = c * x1 - s * x2;
}
Xptr = &X[len - 2 * stride - 1];
for (i = len - 2 * stride - 1; i >= 0; i--) {
float x1, x2;
x1 = Xptr[0];
x2 = Xptr[stride];
float x1 = Xptr[0];
float x2 = Xptr[stride];
Xptr[stride] = c * x2 + s * x1;
*Xptr-- = c * x1 - s * x2;
}
@ -132,8 +130,6 @@ static inline void celt_exp_rotation(float *X, uint32_t len,
stride2++;
}
/*NOTE: As a minor optimization, we could be passing around log2(B), not B, for both this and for
extract_collapse_mask().*/
len /= stride;
for (i = 0; i < stride; i++) {
if (encode) {
@ -150,17 +146,12 @@ static inline void celt_exp_rotation(float *X, uint32_t len,
static inline uint32_t celt_extract_collapse_mask(const int *iy, uint32_t N, uint32_t B)
{
uint32_t collapse_mask;
int N0;
int i, j;
int i, j, N0 = N / B;
uint32_t collapse_mask = 0;
if (B <= 1)
return 1;
/*NOTE: As a minor optimization, we could be passing around log2(B), not B, for both this and for
exp_rotation().*/
N0 = N/B;
collapse_mask = 0;
for (i = 0; i < B; i++)
for (j = 0; j < N0; j++)
collapse_mask |= (!!iy[i*N0+j]) << i;
@ -277,13 +268,11 @@ static inline uint32_t celt_icwrsi(uint32_t N, uint32_t K, const int *y)
static inline uint64_t celt_cwrsi(uint32_t N, uint32_t K, uint32_t i, int *y)
{
uint64_t norm = 0;
uint32_t p;
uint32_t q, p;
int s, val;
int k0;
while (N > 2) {
uint32_t q;
/*Lots of pulses case:*/
if (K >= N) {
const uint32_t *row = ff_celt_pvq_u_row[N];