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resample: Let the resampler object handle all channels

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Move the code to loop over all channels in the resampler itself.
This is better because the resampler can reuse its state for
each channel.
This commit is contained in:
Wim Taymans 2019-03-22 16:48:35 +01:00
parent 5a2ccee1ff
commit f29d14fcc8
5 changed files with 97 additions and 64 deletions
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20
spa/plugins/audioconvert/resample-speex.h
View file

@ -37,16 +37,26 @@ static void impl_speex_update_rate(struct resample *r, double rate)
r->i_rate * rate, r->o_rate, r->i_rate, r->o_rate);
}
static void impl_speex_process(struct resample *r, int channel,
void *src, uint32_t *in_len, void *dst, uint32_t *out_len)
static void impl_speex_process(struct resample *r,
const void *SPA_RESTRICT src[], uint32_t *in_len,
void * SPA_RESTRICT dst[], uint32_t *out_len)
{
uint32_t c, i, o;
if (r->i_rate == r->o_rate) {
*out_len = *in_len = SPA_MIN(*in_len, *out_len);
spa_memcpy(dst, src, *out_len * sizeof(float));
o = i = SPA_MIN(*in_len, *out_len);
for (c = 0; c < r->channels; c++)
spa_memcpy(dst[c], src[c], o * sizeof(float));
}
else {
speex_resampler_process_float(r->data, channel, src, in_len, dst, out_len);
for (c = 0; c < r->channels; c++) {
i = *in_len;
o = *out_len;
speex_resampler_process_float(r->data, c, src[c], &i, dst[c], &o);
}
}
*in_len = i;
*out_len = o;
}
static void impl_speex_reset (struct resample *r)