radio95/fm95
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kuba
2025-03-27 21:50:30 +01:00
parent 73c4569909
commit 983f7b4288
1 changed files with 14 additions and 0 deletions
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src/fm95.c
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@@ -18,6 +18,7 @@
#include "../lib/oscillator.h" #include "../lib/oscillator.h"
#include "../lib/filters.h" #include "../lib/filters.h"
#include "../lib/fm_modulator.h" #include "../lib/fm_modulator.h"
#include "../lib/optimization.h"
#define DEFAULT_SAMPLE_RATE 192000 #define DEFAULT_SAMPLE_RATE 192000
@@ -47,10 +48,23 @@
static volatile sig_atomic_t to_run = 1; static volatile sig_atomic_t to_run = 1;
void uninterleave(const float *input, float *left, float *right, size_t num_samples) { void uninterleave(const float *input, float *left, float *right, size_t num_samples) {
#if USE_NEON
size_t i = 0;
for (; i + 3 < num_samples / 2; i += 4) {
float32x4x2_t input_vec = vld2q_f32(input + i * 2);
vst1q_f32(left + i, input_vec.val[0]);
vst1q_f32(right + i, input_vec.val[1]);
}
for (; i < num_samples / 2; i++) {
left[i] = input[i * 2];
right[i] = input[i * 2 + 1];
}
#else
for (size_t i = 0; i < num_samples / 2; i++) { for (size_t i = 0; i < num_samples / 2; i++) {
left[i] = input[i * 2]; left[i] = input[i * 2];
right[i] = input[i * 2 + 1]; right[i] = input[i * 2 + 1];
} }
#endif
} }
static void stop(int signum) { static void stop(int signum) {