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audioconvert: add function to get phase to resampler API

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Support getting any fractional phase part of the resampler delay in its
API.
This commit is contained in:
Pauli Virtanen 2025-01-14 21:54:45 +02:00
parent d36a867788
commit 07f6dde3dd
3 changed files with 30 additions and 0 deletions
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22
spa/plugins/audioconvert/resample-native.c
View file

@ -315,6 +315,27 @@ static uint32_t impl_native_delay (struct resample *r)
return d->n_taps / 2 - 1;
}
static int32_t impl_native_phase_ns(struct resample *r)
{
struct native_data *d = r->data;
if (d->func == d->info->process_full) {
float pho = -(float)((int32_t)d->phase) / d->out_rate;
if (pho != 0.0f)
pho += 1.0f;
return (int32_t)(pho * SPA_NSEC_PER_SEC / r->i_rate);
} else if (d->func == d->info->process_inter) {
float pho = -d->phase / d->out_rate;
if (pho != 0.0f)
pho += 1.0f;
return (int32_t)(pho * SPA_NSEC_PER_SEC / r->i_rate);
}
return 0;
}
int resample_native_init(struct resample *r)
{
struct native_data *d;
@ -331,6 +352,7 @@ int resample_native_init(struct resample *r)
r->process = impl_native_process;
r->reset = impl_native_reset;
r->delay = impl_native_delay;
r->phase_ns = impl_native_phase_ns;
q = &window_qualities[r->quality];

6
spa/plugins/audioconvert/resample-peaks.c
View file

@ -100,6 +100,11 @@ static void impl_peaks_reset (struct resample *r)
d->i_count = d->o_count = 0;
}
static int32_t impl_peaks_phase_ns (struct resample *r)
{
return 0;
}
int resample_peaks_init(struct resample *r)
{
struct peaks_data *d;
@ -125,6 +130,7 @@ int resample_peaks_init(struct resample *r)
r->delay = impl_peaks_delay;
r->in_len = impl_peaks_in_len;
r->out_len = impl_peaks_out_len;
r->phase_ns = impl_peaks_phase_ns;
spa_log_debug(r->log, "peaks %p: in:%d out:%d features:%08x:%08x", r,
r->i_rate, r->o_rate, r->cpu_flags, d->peaks.cpu_flags);

2
spa/plugins/audioconvert/resample.h
View file

@ -32,6 +32,7 @@ struct resample {
void * SPA_RESTRICT dst[], uint32_t *out_len);
void (*reset) (struct resample *r);
uint32_t (*delay) (struct resample *r);
int32_t (*phase_ns) (struct resample *r);
void *data;
};
@ -42,6 +43,7 @@ struct resample {
#define resample_process(r,...) (r)->process(r,__VA_ARGS__)
#define resample_reset(r) (r)->reset(r)
#define resample_delay(r) (r)->delay(r)
#define resample_phase_ns(r) (r)->phase_ns(r)
int resample_native_init(struct resample *r);
int resample_peaks_init(struct resample *r);