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resample: add some more options to spa-resample

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Make it possible to set the params by name. Dump the resampler config
in verbose mode.
This commit is contained in:
Wim Taymans 2025-11-20 13:19:21 +01:00
parent e8268969ea
commit faf4641625
3 changed files with 69 additions and 30 deletions
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24
spa/plugins/audioconvert/resample.h
View file

@ -9,6 +9,7 @@
#include <spa/support/log.h>
#define RESAMPLE_DEFAULT_QUALITY 4
#define RESAMPLE_WINDOW_DEFAULT RESAMPLE_WINDOW_EXP
#define RESAMPLE_MAX_PARAMS 16
struct resample_config {
@ -77,13 +78,14 @@ static const struct resample_window_info {
uint32_t window;
const char *label;
const char *description;
uint32_t n_params;
} resample_window_info[] = {
[RESAMPLE_WINDOW_EXP] = { RESAMPLE_WINDOW_EXP,
"exponential", "Exponential window", },
"exp", "Exponential window", 1 },
[RESAMPLE_WINDOW_BLACKMAN] = { RESAMPLE_WINDOW_BLACKMAN,
"blackman", "Blackman window", },
"blackman", "Blackman window", 1 },
[RESAMPLE_WINDOW_KAISER] = { RESAMPLE_WINDOW_KAISER,
"kaiser", "Kaiser window", },
"kaiser", "Kaiser window", 3 },
};
static inline uint32_t resample_window_from_label(const char *label)
@ -95,15 +97,21 @@ static inline uint32_t resample_window_from_label(const char *label)
return RESAMPLE_WINDOW_EXP;
}
static inline const char *resample_window_name(uint32_t idx)
{
return resample_window_info[SPA_CLAMP(idx, 0u, SPA_N_ELEMENTS(resample_window_info)-1)].label;
}
static const struct resample_param_info {
uint32_t window;
uint32_t idx;
const char *label;
} resample_param_info[] = {
{ RESAMPLE_PARAM_EXP_A, "exp.A" },
{ RESAMPLE_PARAM_BLACKMAN_ALPHA, "blackman.alpha" },
{ RESAMPLE_PARAM_KAISER_ALPHA, "kaiser.alpha" },
{ RESAMPLE_PARAM_KAISER_SB_ATT, "kaiser.stopband-attenuation" },
{ RESAMPLE_PARAM_KAISER_TR_BW, "kaiser.transition-bandwidth" },
{ RESAMPLE_WINDOW_EXP, RESAMPLE_PARAM_EXP_A, "exp.A" },
{ RESAMPLE_WINDOW_BLACKMAN, RESAMPLE_PARAM_BLACKMAN_ALPHA, "blackman.alpha" },
{ RESAMPLE_WINDOW_KAISER, RESAMPLE_PARAM_KAISER_ALPHA, "kaiser.alpha" },
{ RESAMPLE_WINDOW_KAISER, RESAMPLE_PARAM_KAISER_SB_ATT, "kaiser.stopband-attenuation" },
{ RESAMPLE_WINDOW_KAISER, RESAMPLE_PARAM_KAISER_TR_BW, "kaiser.transition-bandwidth" },
};
static inline uint32_t resample_param_from_label(const char *label)