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feature: Add 2.5 ms and 5 ms LC3 plus frame durations

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fix: Check TNS bitstream data

fix: LTPF Activation with 2.5 ms frame sizes
This commit is contained in:
anonymix007
2023-12-13 10:56:20 -08:00
committed by Antoine Soulier
parent a75f187e00
commit 149cb6537e
43 changed files with 3095 additions and 1628 deletions
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14
src/spec.c
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@@ -666,13 +666,13 @@ LC3_HOT static void get_lsb(lc3_bits_t *bits,
LC3_HOT static int estimate_noise(enum lc3_dt dt, enum lc3_bandwidth bw,
const uint16_t *xq, int nq, const float *x)
{
int bw_stop = (dt == LC3_DT_7M5 ? 60 : 80) * (1 + bw);
int w = 2 + dt;
int bw_stop = 20 * (1 + dt) * (1 + bw);
int w = 1 + (dt >= LC3_DT_7M5) + (dt>= LC3_DT_10M);
float sum = 0;
int i, n = 0, z = 0;
for (i = 6*(3 + dt) - w; i < LC3_MIN(nq, bw_stop); i++) {
for (i = 6 * (1 + dt) - w; i < LC3_MIN(nq, bw_stop); i++) {
z = xq[i] ? 0 : z + 1;
if (z > 2*w)
sum += fabsf(x[i - w]), n++;
@@ -682,7 +682,7 @@ LC3_HOT static int estimate_noise(enum lc3_dt dt, enum lc3_bandwidth bw,
if (++z > 2*w)
sum += fabsf(x[i - w]), n++;
int nf = n ? 8 - (int)((16 * sum) / n + 0.5f) : 0;
int nf = n ? 8 - (int)((16 * sum) / n + 0.5f) : 8;
return LC3_CLIP(nf, 0, 7);
}
@@ -697,13 +697,13 @@ LC3_HOT static int estimate_noise(enum lc3_dt dt, enum lc3_bandwidth bw,
LC3_HOT static void fill_noise(enum lc3_dt dt, enum lc3_bandwidth bw,
int nf, uint16_t nf_seed, float g, float *x, int nq)
{
int bw_stop = (dt == LC3_DT_7M5 ? 60 : 80) * (1 + bw);
int w = 2 + dt;
int bw_stop = 20 * (1 + dt) * (1 + bw);
int w = 1 + (dt >= LC3_DT_7M5) + (dt>= LC3_DT_10M);
float s = g * (float)(8 - nf) / 16;
int i, z = 0;
for (i = 6*(3 + dt) - w; i < LC3_MIN(nq, bw_stop); i++) {
for (i = 6 * (1 + dt) - w; i < LC3_MIN(nq, bw_stop); i++) {
z = x[i] ? 0 : z + 1;
if (z > 2*w) {
nf_seed = (13849 + nf_seed*31821) & 0xffff;