mirrors/pipewire
1
0
Fork 0
mirror of https://gitlab.freedesktop.org/pipewire/pipewire.git synced 2025-12-17 08:56:49 -05:00
Code Issues Projects Releases Packages Wiki Activity Actions

resample-native: optimize equal input and output sample rates

Browse source
This commit is contained in:
Wim Taymans 2019-03-27 13:38:34 +01:00
parent 4fafd10a89
commit eaffb25cc2
3 changed files with 43 additions and 9 deletions
Download patch file Download diff file Expand all files Collapse all files

29
spa/plugins/audioconvert/resample-native-impl.h
View file

@ -22,6 +22,35 @@
* DEALINGS IN THE SOFTWARE.
*/
#define MAKE_RESAMPLER_COPY(arch) \
static void do_resample_copy_##arch(struct resample *r, \
const void * SPA_RESTRICT src[], uint32_t *in_len, \
void * SPA_RESTRICT dst[], uint32_t offs, uint32_t *out_len) \
{ \
struct native_data *data = r->data; \
uint32_t index, n_taps = data->n_taps; \
uint32_t c, olen = *out_len, ilen = *in_len; \
\
if (r->channels == 0) \
return; \
\
index = data->index; \
if (offs < olen && index + n_taps <= ilen) { \
uint32_t to_copy = SPA_MIN(olen - offs, \
ilen - (index + n_taps) + 1); \
for (c = 0; c < r->channels; c++) { \
const float *s = src[c]; \
float *d = dst[c]; \
memcpy(&d[offs], &s[index], to_copy * sizeof(float)); \
} \
index += to_copy; \
offs += to_copy; \
} \
*in_len = index - data->index; \
*out_len = offs; \
data->index = index; \
}
#define MAKE_RESAMPLER_FULL(arch) \
static void do_resample_full_##arch(struct resample *r, \
const void * SPA_RESTRICT src[], uint32_t *in_len, \