Home
last modified time | relevance | path

Searched refs:n (Results 1 – 22 of 22) sorted by relevance

/liblc3-latest/src/
Dbits.c72 int n = end > start ? (int)(end - start) : -(int)(start - end); in get_bits_left() local
74 return 8 * n - (accu->n + accu->nover + ac_get_pending_bits(ac)); in get_bits_left()
86 .n = mode == LC3_BITS_MODE_READ ? LC3_ACCU_BITS : 0, in lc3_setup_bits()
142 int nbytes = LC3_MIN(accu->n >> 3, in accu_flush()
145 accu->n -= 8 * nbytes; in accu_flush()
150 if (accu->n >= 8) in accu_flush()
151 accu->n = 0; in accu_flush()
253 for (int n = 8 * nleft - accu->n; n > 0; n -= 32) in lc3_flush_bits() local
254 lc3_put_bits(bits, 0, LC3_MIN(n, 32)); in lc3_flush_bits()
265 LC3_HOT void lc3_put_bits_generic(struct lc3_bits *bits, unsigned v, int n) in lc3_put_bits_generic() argument
[all …]
Dbits.h96 int n, nover; member
155 static inline void lc3_put_bits(lc3_bits_t *bits, unsigned v, int n);
183 static inline unsigned lc3_get_bits(lc3_bits_t *bits, int n);
200 void lc3_put_bits_generic(lc3_bits_t *bits, unsigned v, int n);
201 unsigned lc3_get_bits_generic(struct lc3_bits *bits, int n);
219 struct lc3_bits *bits, unsigned v, int n) in lc3_put_bits() argument
223 if (accu->n + n <= LC3_ACCU_BITS) { in lc3_put_bits()
224 accu->v |= v << accu->n; in lc3_put_bits()
225 accu->n += n; in lc3_put_bits()
227 lc3_put_bits_generic(bits, v, n); in lc3_put_bits()
[all …]
Dltpf_arm.h49 struct lc3_ltpf_hp50_state *hp50, const int16x2_t *x, int16_t *y, int n) in arm_resample_x64k_12k8() argument
55 for (int i = 0; i < 5*n; i += 5) { in arm_resample_x64k_12k8()
80 struct lc3_ltpf_hp50_state *hp50, const int16x2_t *x, int16_t *y, int n) in arm_resample_x192k_12k8() argument
86 for (int i = 0; i < 15*n; i += 15) { in arm_resample_x192k_12k8()
122 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in arm_resample_8k_12k8() argument
144 8, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); in arm_resample_8k_12k8()
159 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in arm_resample_16k_12k8() argument
202 4, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); in arm_resample_16k_12k8()
217 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in arm_resample_32k_12k8() argument
251 2, (const int16x2_t *)h, hp50, (int16x2_t *)x, y, n); in arm_resample_32k_12k8()
[all …]
Dltpf.c214 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in resample_x64k_12k8() argument
220 for (int i = 0; i < 5*n; i += 5) { in resample_x64k_12k8()
259 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in resample_x192k_12k8() argument
265 for (int i = 0; i < 15*n; i += 15) { in resample_x192k_12k8()
304 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in resample_8k_12k8() argument
306 resample_x64k_12k8(8, h_8k_12k8_q15, hp50, x, y, n); in resample_8k_12k8()
320 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in resample_16k_12k8() argument
322 resample_x64k_12k8(4, h_16k_12k8_q15, hp50, x, y, n); in resample_16k_12k8()
336 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in resample_32k_12k8() argument
338 resample_x64k_12k8(2, h_32k_12k8_q15, hp50, x, y, n); in resample_32k_12k8()
[all …]
Dmdct.c36 const struct lc3_complex *x, struct lc3_complex *y, int n) in fft_5() argument
44 for (int i = 0; i < n; i++, x++, y+= 5) { in fft_5()
47 { x[1*n].re + x[4*n].re, x[1*n].im + x[4*n].im }; in fft_5()
49 { x[1*n].re - x[4*n].re, x[1*n].im - x[4*n].im }; in fft_5()
52 { x[2*n].re + x[3*n].re, x[2*n].im + x[3*n].im }; in fft_5()
54 { x[2*n].re - x[3*n].re, x[2*n].im - x[3*n].im }; in fft_5()
96 const struct lc3_complex *x, struct lc3_complex *y, int n) in fft_bf3() argument
102 const struct lc3_complex *x0 = x, *x1 = x0 + n*n3, *x2 = x1 + n*n3; in fft_bf3()
105 for (int i = 0; i < n; i++, y0 += 3*n3, y1 += 3*n3, y2 += 3*n3) in fft_bf3()
138 const struct lc3_complex *x, struct lc3_complex *y, int n) in fft_bf2() argument
[all …]
Dltpf_neon.h40 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in neon_resample_16k_12k8() argument
60 for (int i = 0; i < 5*n; i += 5) { in neon_resample_16k_12k8()
88 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in neon_resample_32k_12k8() argument
106 for (int i = 0; i < 5*n; i += 5) { in neon_resample_32k_12k8()
133 struct lc3_ltpf_hp50_state *hp50, const int16_t *x, int16_t *y, int n) in neon_resample_48k_12k8() argument
169 for (int i = 0; i < 15*n; i += 15) { in neon_resample_48k_12k8()
195 LC3_HOT static inline float neon_dot(const int16_t *a, const int16_t *b, int n) in neon_dot() argument
199 for (int i = 0; i < (n >> 4); i++) { in neon_dot()
227 const int16_t *a, const int16_t *b, int n, float *y, int nc) in neon_correlate() argument
238 for (int i=0; i < (n >> 4); i++ ) in neon_correlate()
[all …]
Dmdct_neon.h34 const struct lc3_complex *x, struct lc3_complex *y, int n) in neon_fft_5() argument
52 for (int i = 0; i < n; i += 2, x += 2, y += 10) { in neon_fft_5()
56 float32x4_t x0 = vld1q_f32( (float *)(x + 0*n) ); in neon_fft_5()
57 float32x4_t x1 = vld1q_f32( (float *)(x + 1*n) ); in neon_fft_5()
58 float32x4_t x2 = vld1q_f32( (float *)(x + 2*n) ); in neon_fft_5()
59 float32x4_t x3 = vld1q_f32( (float *)(x + 3*n) ); in neon_fft_5()
60 float32x4_t x4 = vld1q_f32( (float *)(x + 4*n) ); in neon_fft_5()
115 const struct lc3_complex *x, struct lc3_complex *y, int n) in neon_fft_bf3() argument
123 const struct lc3_complex *x1_ptr = x0_ptr + n*n3; in neon_fft_bf3()
124 const struct lc3_complex *x2_ptr = x1_ptr + n*n3; in neon_fft_bf3()
[all …]
Denergy.c41 int n = ie - i; in lc3_energy_compute() local
47 *e = sx2 / n; in lc3_energy_compute()
Dspec.c252 enum lc3_dt dt, enum lc3_srate sr, int g_int, float *x, int *n) in quantize() argument
257 *n = ne; in quantize()
265 *n = fabsf(x[i+0]) >= xq_min || in quantize()
266 fabsf(x[i+1]) >= xq_min ? ne : *n - 2; in quantize()
325 const float *x, int *n, int nbits_budget, bool *p_lsb_mode) in compute_nbits() argument
343 for ( ; i < LC3_MIN(*n, (ne + 2) >> (1 - h)) in compute_nbits()
400 *n = n_end; in compute_nbits()
575 int nbits, bool hrmode, float *x, int n) in put_residual() argument
581 for (int i = 0; i < n && nbits > 0; i++) { in put_residual()
606 int nbits, bool hrmode, float *x, int n) in get_residual() argument
[all …]
Dbwdet.c91 int n = ie - i; in lc3_bwdet_run() local
97 if (se >= (10 << (bw == LC3_BANDWIDTH_NB)) * n) in lc3_bwdet_run()
Dsns.c435 LC3_HOT static void add_pulse(const float *x, int *y, int n, in add_pulse() argument
443 for (int i = 1; i < n; i++) { in add_pulse()
606 static void enum_mvpq(const int *c, int n, int *idx, bool *ls) in enum_mvpq() argument
612 for (i = 0, c += n; (ci = *(--c)) == 0 && i < 15; i++); in enum_mvpq()
621 for (i++; i < n; i++, j += LC3_ABS(ci)) { in enum_mvpq()
638 static void deenum_mvpq(int idx, bool ls, int npulses, int *c, int n) in deenum_mvpq() argument
644 for (i = n-1; i >= 0 && idx; i--) { in deenum_mvpq()
Dtns.c42 LC3_HOT static inline float dot(const float *a, const float *b, int n) in dot() argument
46 while (n--) in dot()
/liblc3-latest/test/
Dltpf.py33 self.n = ((T.DT_MS[dt] * 128) / 10).astype(int)
37 self.u = np.zeros(self.n + 2)
38 self.y = np.zeros(self.n + self.d + history)
45 n = self.n
53 if len(self.y) > 2*n + d:
54 self.y[n+d:-n] = self.y[d+2*n:]
55 if len(self.y) > n + d:
56 self.y[-n:] = self.y[:n]
57 self.y[:d] = self.y[n:d+n]
68 for i in range(n):
[all …]
Dmdct.py63 n = len(t)
64 n2 = n // 2
66 z = t * np.exp(-2j * np.pi * np.arange(n) / (2*n))
84 n = len(x)
87 z = x * np.exp(2j * np.pi * (n/2 + 0.5) * np.arange(2*n) / (2*n))
88 z = scipy.fft.ifft(z) * n
89 z = z * np.exp(2j * np.pi * (np.arange(2*n) + (n/2 + 0.5)) / (4*n))
90 t = np.real(z) * np.sqrt(2/n)
Dspec.py182 for n in range(0, lastnz, 2):
184 if n > len(x) // 2:
187 a = abs(x[n ])
188 b = abs(x[n+1])
205 a_lsb = abs(x[n ])
206 b_lsb = abs(x[n+1])
211 nbits_lsb += int(a_lsb == 0 and x[n ] != 0)
212 nbits_lsb += int(b_lsb == 0 and x[n+1] != 0)
214 if (x[n] != 0 or x[n+1] != 0) and \
216 lastnz_trunc = n + 2
[all …]
Dctypes.h41 #define to_1d_ptr(obj, t, n, ptr) \ argument
42 __to_1d_ptr(obj, t, n, (void **)(ptr))
47 #define to_1d_copy(obj, t, ptr, n) \ argument
48 __to_1d_copy(obj, t, ptr, n)
61 #define new_1d_ptr(t, n, ptr) \ argument
62 __new_1d_ptr(t, n, (void **)(ptr))
67 #define new_1d_copy(t, n, src) \ argument
68 __new_1d_copy(t, n, src)
90 static PyObject *__to_1d_ptr(PyObject *obj, int t, int n, void **ptr) in __to_1d_ptr() argument
94 if (!obj || (n && PyArray_SIZE((PyArrayObject *)obj) != n)) in __to_1d_ptr()
[all …]
Dltpf_py.c41 int n = (1 + dt) * 32; in resample_py() local
46 resample_12k8[sr](&hp50, x + nt, y + (ny - n), n); in resample_py()
Dspec_py.c157 int hrmode, n; in estimate_noise_py() local
160 &dt, &bw, &hrmode, &x_obj, &n)) in estimate_noise_py()
170 int noise_factor = estimate_noise(dt, bw, hrmode, x, n); in estimate_noise_py()
Dsns.py191 for (n, vn) in enumerate(v[::-1]):
198 index += T.SNS_MPVQ_OFFSETS[n][x]
381 def deenum_mpvq(self, index, ls, npulses, n): argument
383 y = np.zeros(n, dtype=np.intc)
/liblc3-latest/tables/
Dmktables.py101 for n in (10, 20, 30, 40, 60, 80, 90, 120, 160, 180, 240, 480):
103 print('\n--- fft bf2 twiddles {:3d} ---'.format(n))
105 kv = -2 * np.pi * np.arange(n // 2) / n
110 for n in (15, 45):
112 print('\n--- fft bf3 twiddles {:3d} ---'.format(n))
114 kv = -2 * np.pi * np.arange(n) / n
123 for n in (40, 80, 120, 160, 240, 320, 360, 480, 640, 720, 960, 1920):
125 print('\n--- mdct rot twiddles {:3d} ---'.format(n))
127 kv = 2 * np.pi * (np.arange(n // 4) + 1/8) / n
128 scale = np.sqrt( np.sqrt( 4 / n ) )
/liblc3-latest/python/tools/
Dspecgram.py60 n = 10 * int(fs) variable
61 t = np.arange(n - (n % frame_len)) / fs
/liblc3-latest/test/neon/
Dneon.h103 static int16x4_t vext_s16(int16x4_t a, int16x4_t b, const int n) in vext_s16() argument
108 return (int16x4_t){ { x[n], x[n+1], x[n+2], x[n+3] } }; in vext_s16()