aubio 0.5.0-alpha
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effects/test-pitchshift.c
#define AUBIO_UNSTABLE 1
#include <aubio.h>
#include "utils_tests.h"
int test_wrong_params(void);
int main (int argc, char **argv)
{
sint_t err = 0;
if (argc < 3) {
PRINT_ERR("not enough arguments, running tests\n");
err = test_wrong_params();
PRINT_MSG("usage: %s <input_path> <output_path> [transpose] ", argv[0]);
PRINT_MSG("[mode] [hop_size] [samplerate]\n");
PRINT_MSG(" with [transpose] a number of semi tones in the range "
" [-24, 24], and [mode] in 'default', 'crispness:0',"
" 'crispness:1', ... 'crispness:6'\n");
return err;
}
#ifdef HAVE_RUBBERBAND
uint_t samplerate = 0;
uint_t hop_size = 64;
smpl_t transpose = 0.;
uint_t n_frames = 0, read = 0;
char_t *source_path = argv[1];
char_t *sink_path = argv[2];
char_t *mode = "default";
transpose = 0.;
if ( argc >= 4 ) transpose = atof(argv[3]);
if ( argc >= 5 ) mode = argv[4];
if ( argc >= 6 ) hop_size = atoi(argv[5]);
if ( argc >= 7 ) samplerate = atoi(argv[6]);
fvec_t *vec = new_fvec(hop_size);
fvec_t *out = new_fvec(hop_size);
if (!vec) { err = 1; goto beach_fvec; }
aubio_source_t *i = new_aubio_source(source_path, samplerate, hop_size);
if (!i) { err = 1; goto beach_source; }
if (samplerate == 0 ) samplerate = aubio_source_get_samplerate(i);
aubio_sink_t *o = new_aubio_sink(sink_path, samplerate);
if (!o) { err = 1; goto beach_sink; }
new_aubio_pitchshift(mode, transpose, hop_size, samplerate);
if (!ps) { err = 1; goto beach_pitchshift; }
do {
aubio_source_do(i, vec, &read);
//aubio_pitchshift_set_transpose(ps, tranpose);
aubio_pitchshift_do(ps, vec, out);
aubio_sink_do(o, out, read);
n_frames += read;
} while ( read == hop_size );
PRINT_MSG("read %d frames at %dHz (%d blocks) from %s\n",
n_frames, samplerate, n_frames / hop_size,
source_path);
PRINT_MSG("wrote to %s with hop_size: %d, samplerate: %d, latency %d\n",
sink_path, hop_size, samplerate, aubio_pitchshift_get_latency(ps));
beach_pitchshift:
beach_sink:
beach_source:
del_fvec(vec);
del_fvec(out);
beach_fvec:
#else
err = 0;
PRINT_ERR("aubio was not compiled with rubberband\n");
#endif
return err;
}
int test_wrong_params(void)
{
const char_t *mode = "default";
smpl_t transpose = 0.;
uint_t hop_size = 256;
uint_t samplerate = 44100;
if (new_aubio_pitchshift("??", transpose, hop_size, samplerate)) return 1;
if (new_aubio_pitchshift(mode, 28., hop_size, samplerate)) return 1;
if (new_aubio_pitchshift(mode, transpose, 0, samplerate)) return 1;
if (new_aubio_pitchshift(mode, transpose, hop_size, 0)) return 1;
hop_size, samplerate);
#ifdef HAVE_RUBBERBAND
if (!p) return 1;
if (!aubio_pitchshift_set_pitchscale(p, 0.1)) return 1;
if (!aubio_pitchshift_set_transpose(p, -30)) return 1;
#else
if (p) return 1;
#endif
return run_on_default_source_and_sink(main);
}
Global aubio include file.
fvec_t * new_fvec(uint_t length)
fvec_t buffer creation function
void del_fvec(fvec_t *s)
fvec_t buffer deletion function
void aubio_cleanup(void)
clean up cached memory at the end of program
uint_t aubio_pitchshift_set_pitchscale(aubio_pitchshift_t *o, smpl_t pitchscale)
set the pitch scale of the pitch shifting object
aubio_pitchshift_t * new_aubio_pitchshift(const char_t *method, smpl_t transpose, uint_t hop_size, uint_t samplerate)
creation of the pitch shifting object
uint_t aubio_pitchshift_set_transpose(aubio_pitchshift_t *o, smpl_t transpose)
set the transposition of the pitch shifting object, in semitones
void del_aubio_pitchshift(aubio_pitchshift_t *o)
deletion of the pitch shifting object
struct _aubio_pitchshift_t aubio_pitchshift_t
pitch shifting object
Definition pitchshift.h:39
uint_t aubio_pitchshift_get_latency(aubio_pitchshift_t *o)
get the latency of the pitch shifting object, in samples
void aubio_pitchshift_do(aubio_pitchshift_t *o, const fvec_t *in, fvec_t *out)
execute pitch shifting on an input signal frame
void aubio_sink_do(aubio_sink_t *s, fvec_t *write_data, uint_t write)
write monophonic vector of length hop_size to sink
void del_aubio_sink(aubio_sink_t *s)
close sink and cleanup memory
struct _aubio_sink_t aubio_sink_t
media sink object
Definition sink.h:61
aubio_sink_t * new_aubio_sink(const char_t *uri, uint_t samplerate)
create new aubio_sink_t
uint_t aubio_source_get_samplerate(aubio_source_t *s)
get samplerate of source object
struct _aubio_source_t aubio_source_t
media source object
Definition source.h:70
aubio_source_t * new_aubio_source(const char_t *uri, uint_t samplerate, uint_t hop_size)
create new aubio_source_t
void del_aubio_source(aubio_source_t *s)
close source and cleanup memory
void aubio_source_do(aubio_source_t *s, fvec_t *read_to, uint_t *read)
read monophonic vector of length hop_size from source object
Buffer for real data.
Definition fvec.h:67
unsigned int uint_t
unsigned integer
Definition types.h:60
char char_t
character
Definition types.h:64
float smpl_t
short sample format (32 or 64 bits)
Definition types.h:41
int sint_t
signed integer
Definition types.h:62