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audioconvert: refactor peaks resampler

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Use common code in macro and generate arch specific version.
Compile with -Ofast to optimize some fmaxf calls.
This commit is contained in:
Wim Taymans 2022-09-07 16:00:31 +02:00
parent a79b5c86ea
commit 6e9e02b420
9 changed files with 89 additions and 110 deletions
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60
spa/plugins/audioconvert/resample-peaks-impl.h
View file

@ -34,11 +34,59 @@ struct peaks_data {
float max_f[];
};
void resample_peaks_process_c(struct resample *r,
const void * SPA_RESTRICT src[], uint32_t *in_len,
void * SPA_RESTRICT dst[], uint32_t *out_len);
#define DEFINE_PEAKS(arch) \
void resample_peaks_process_##arch(struct resample *r, \
const void * SPA_RESTRICT src[], uint32_t *in_len, \
void * SPA_RESTRICT dst[], uint32_t *out_len)
#define MAKE_PEAKS(arch) \
DEFINE_PEAKS(arch) \
{ \
struct peaks_data *pd = r->data; \
uint32_t c, i, o, end, chunk, i_count, o_count; \
\
if (SPA_UNLIKELY(r->channels == 0)) \
return; \
\
for (c = 0; c < r->channels; c++) { \
const float *s = src[c]; \
float *d = dst[c], m = pd->max_f[c]; \
\
o_count = pd->o_count; \
i_count = pd->i_count; \
o = i = 0; \
\
while (i < *in_len && o < *out_len) { \
end = ((uint64_t) (o_count + 1) \
* r->i_rate) / r->o_rate; \
end = end > i_count ? end - i_count : 0; \
chunk = SPA_MIN(end, *in_len); \
\
m = find_abs_max_##arch(&s[i], chunk - i, m); \
\
i += chunk; \
\
if (i == end) { \
d[o++] = m; \
m = 0.0f; \
o_count++; \
} \
} \
pd->max_f[c] = m; \
} \
*out_len = o; \
*in_len = i; \
pd->o_count = o_count; \
pd->i_count = i_count + i; \
\
while (pd->i_count >= r->i_rate) { \
pd->i_count -= r->i_rate; \
pd->o_count -= r->o_rate; \
} \
}
DEFINE_PEAKS(c);
#if defined (HAVE_SSE)
void resample_peaks_process_sse(struct resample *r,
const void * SPA_RESTRICT src[], uint32_t *in_len,
void * SPA_RESTRICT dst[], uint32_t *out_len);
DEFINE_PEAKS(sse);
#endif