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https://github.com/LMMS/lmms.git
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f390fd1723
* ReverbSC: Method to change samplerate (#3401) * ReverbSC: added mutex for protected malloc * ReverbSC: small CMake fix to remove warning message * ReverbSC: samplerate changed to uint32_t. more CMakeFile tweaks * Fix dc block on oversampling
85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
#include <stdint.h>
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#include <stdio.h>
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#define NO_LIBSNDFILE
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#ifndef NO_LIBSNDFILE
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#include "sndfile.h"
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#endif
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#define SP_BUFSIZE 4096
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#ifndef SPFLOAT
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#define SPFLOAT float
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#endif
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#define SP_OK 1
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#define SP_NOT_OK 0
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#define SP_RANDMAX 2147483648
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typedef unsigned long sp_frame;
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typedef struct sp_auxdata {
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size_t size;
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void *ptr;
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} sp_auxdata;
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typedef struct sp_data {
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SPFLOAT *out;
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uint32_t sr;
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int nchan;
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unsigned long len;
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unsigned long pos;
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char filename[200];
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uint32_t rand;
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} sp_data;
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typedef struct {
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char state;
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SPFLOAT val;
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} sp_param;
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int sp_auxdata_alloc(sp_auxdata *aux, size_t size);
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int sp_auxdata_free(sp_auxdata *aux);
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int sp_create(sp_data **spp);
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int sp_createn(sp_data **spp, int nchan);
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int sp_destroy(sp_data **spp);
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int sp_process(sp_data *sp, void *ud, void (*callback)(sp_data *, void *));
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int sp_process_raw(sp_data *sp, void *ud, void (*callback)(sp_data *, void *));
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int sp_process_plot(sp_data *sp, void *ud, void (*callback)(sp_data *, void *));
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int sp_process_spa(sp_data *sp, void *ud, void (*callback)(sp_data *, void *));
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SPFLOAT sp_midi2cps(SPFLOAT nn);
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int sp_set(sp_param *p, SPFLOAT val);
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int sp_out(sp_data *sp, uint32_t chan, SPFLOAT val);
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uint32_t sp_rand(sp_data *sp);
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void sp_srand(sp_data *sp, uint32_t val);
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typedef struct {
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SPFLOAT *utbl;
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int16_t *BRLow;
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int16_t *BRLowCpx;
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} sp_fft;
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void sp_fft_create(sp_fft **fft);
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void sp_fft_init(sp_fft *fft, int M);
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void sp_fftr(sp_fft *fft, SPFLOAT *buf, int FFTsize);
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void sp_fft_cpx(sp_fft *fft, SPFLOAT *buf, int FFTsize);
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void sp_ifftr(sp_fft *fft, SPFLOAT *buf, int FFTsize);
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void sp_fft_destroy(sp_fft *fft);
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#ifndef kiss_fft_scalar
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#define kiss_fft_scalar SPFLOAT
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#endif
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typedef struct {
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kiss_fft_scalar r;
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kiss_fft_scalar i;
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}kiss_fft_cpx;
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typedef struct kiss_fft_state* kiss_fft_cfg;
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typedef struct kiss_fftr_state* kiss_fftr_cfg;
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