Displaying 7 results from an estimated 7 matches for "sinc_table".
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pin_table
2008 May 03
2
Resampler (no api)
...len;
+ const int N = st->filt_len;
int out_sample = 0;
- spx_word16_t *mem;
int last_sample = st->last_sample[channel_index];
spx_uint32_t samp_frac_num = st->samp_frac_num[channel_index];
- mem = st->mem + channel_index * st->mem_alloc_size;
+ const spx_word16_t *sinc_table = st->sinc_table;
+ const int out_stride = st->out_stride;
+ const int int_advance = st->int_advance;
+ const int frac_advance = st->frac_advance;
+ const spx_uint32_t den_rate = st->den_rate;
+ spx_word32_t sum;
+ int j;
+
while (!(last_sample >= (spx_int32_t)*in_...
2008 May 03
0
Resampler, memory only variant
...len;
+ const int N = st->filt_len;
int out_sample = 0;
- spx_word16_t *mem;
int last_sample = st->last_sample[channel_index];
spx_uint32_t samp_frac_num = st->samp_frac_num[channel_index];
- mem = st->mem + channel_index * st->mem_alloc_size;
+ const spx_word16_t *sinc_table = st->sinc_table;
+ const int out_stride = st->out_stride;
+ const int int_advance = st->int_advance;
+ const int frac_advance = st->frac_advance;
+ const spx_uint32_t den_rate = st->den_rate;
+ spx_word32_t sum;
+ int j;
+
while (!(last_sample >= (spx_int32_t)*in_...
2009 Oct 26
1
[PATCH] Fix miscompile of SSE resampler
...spx_uint3
sum = MULT16_32_Q15(interp[0],SHR32(accum[0], 1)) + MULT16_32_Q15(interp[1],SHR32(accum[1], 1)) + MULT16_32_Q15(interp[2],SHR32(accum[2], 1)) + MULT16_32_Q15(interp[3],SHR32(accum[3], 1));
#else
cubic_coef(frac, interp);
- sum = interpolate_product_single(iptr, st->sinc_table + st->oversample + 4 - offset - 2, N, st->oversample, interp);
+ interpolate_product_single(&sum, iptr, st->sinc_table + st->oversample + 4 - offset - 2, N, st->oversample, interp);
#endif
out[out_stride * out_sample++] = SATURATE32(PSHR32(sum, 14), 32767);
@...
2011 Sep 01
6
[PATCH 0/5] ARM NEON optimization for samplerate converter
From: Jyri Sarha <jsarha at ti.com>
I optimized Speex resampler for NEON capable ARM CPUs. The first patch
should speed up resampling on any platform that can spare the
increased memory usage. It would be nice to have these merged to the
master branch. Please let me know if there is anything I can do to
help the the merge. The patches have been rebased on top of master
branch in
2011 Sep 01
0
[PATCH 3/5] resample: Add NEON optimized inner_product_single for fixed point
...0],SHR32(accum[0], 1)) + MULT16_32_Q15(interp[1],SHR32(accum[1], 1)) + MULT16_32_Q15(interp[2],SHR32(accum[2], 1)) + MULT16_32_Q15(interp[3],SHR32(accum[3], 1));
+ sum = SATURATE32PSHR(sum, 15, 32767);
#else
cubic_coef(frac, interp);
sum = interpolate_product_single(iptr, st->sinc_table + st->oversample + 4 - offset - 2, N, st->oversample, interp);
#endif
- out[out_stride * out_sample++] = SATURATE32(PSHR32(sum, 14), 32767);
+ out[out_stride * out_sample++] = sum;
last_sample += int_advance;
samp_frac_num += frac_advance;
if (samp_frac...
2008 Mar 29
0
GCC/ELF Visibility patch
...32_t out_rate, int quality, int *err)
{
spx_uint32_t i;
SpeexResamplerState *st;
@@ -779,7 +779,7 @@
return st;
}
-void speex_resampler_destroy(SpeexResamplerState *st)
+EXPORT void speex_resampler_destroy(SpeexResamplerState *st)
{
speex_free(st->mem);
speex_free(st->sinc_table);
@@ -854,7 +854,7 @@
#define FIXED_STACK_ALLOC 1024
#ifdef FIXED_POINT
-int speex_resampler_process_float(SpeexResamplerState *st, spx_uint32_t channel_index, const float *in, spx_uint32_t *in_len, float *out, spx_uint32_t *out_len)
+EXPORT int speex_resampler_process_float(SpeexResamplerState...
2008 Mar 29
2
GCC/ELF Visibility patch (fwd)
...32_t out_rate, int quality, int *err)
{
spx_uint32_t i;
SpeexResamplerState *st;
@@ -779,7 +779,7 @@
return st;
}
-void speex_resampler_destroy(SpeexResamplerState *st)
+EXPORT void speex_resampler_destroy(SpeexResamplerState *st)
{
speex_free(st->mem);
speex_free(st->sinc_table);
@@ -854,7 +854,7 @@
#define FIXED_STACK_ALLOC 1024
#ifdef FIXED_POINT
-int speex_resampler_process_float(SpeexResamplerState *st, spx_uint32_t channel_index, const float *in, spx_uint32_t *in_len, float *out, spx_uint32_t *out_len)
+EXPORT int speex_resampler_process_float(SpeexResamplerState...