79 lines
3.0 KiB
C
79 lines
3.0 KiB
C
/* SoX Resampler Library Copyright (c) 2007-18 robs@users.sourceforge.net
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*
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* This library is free software; you can redistribute it and/or modify it
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* under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation; either version 2.1 of the License, or (at
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* your option) any later version.
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*
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* This library is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
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* General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/* Wrapper compatible with `libsamplerate' (constant-rate).
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* (Libsoxr's native API can be found in soxr.h). */
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#if !defined SAMPLERATE_H
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#define SAMPLERATE_H
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#if defined __cplusplus
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extern "C" {
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#endif
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#if defined SOXR_DLL
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#if defined soxr_lsr_EXPORTS
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#define SOXR __declspec(dllexport)
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#else
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#define SOXR __declspec(dllimport)
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#endif
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#elif defined SOXR_VISIBILITY && defined __GNUC__ && (__GNUC__ > 4 || __GNUC__ == 4 && __GNUC_MINOR__ >= 1)
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#define SOXR __attribute__ ((visibility("default")))
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#else
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#define SOXR
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#endif
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typedef float SRC_SAMPLE;
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enum SRC_SRCTYPE_e {SRC_SINC_BEST_QUALITY, SRC_SINC_MEDIUM_QUALITY,
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SRC_SINC_FASTEST, SRC_ZERO_ORDER_HOLD, SRC_LINEAR};
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typedef int SRC_SRCTYPE;
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typedef int SRC_ERROR;
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typedef long (* src_callback_t)(void *, SRC_SAMPLE * *);
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typedef struct soxr SRC_STATE;
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typedef struct SRC_DATA {
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SRC_SAMPLE * data_in, * data_out;
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long input_frames, output_frames;
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long input_frames_used, output_frames_gen;
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int end_of_input;
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double src_ratio;
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} SRC_DATA;
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SOXR SRC_STATE * src_new(SRC_SRCTYPE, int num_channels, SRC_ERROR *);
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SOXR SRC_ERROR src_process (SRC_STATE *, SRC_DATA *);
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SOXR SRC_ERROR src_set_ratio(SRC_STATE *, double);
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SOXR SRC_ERROR src_reset (SRC_STATE *);
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SOXR SRC_ERROR src_error (SRC_STATE *);
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SOXR SRC_STATE * src_delete (SRC_STATE *);
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SOXR SRC_STATE * src_callback_new(
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src_callback_t, SRC_SRCTYPE, int, SRC_ERROR *, void *);
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SOXR long src_callback_read(
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SRC_STATE *, double src_ratio, long, SRC_SAMPLE *);
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SOXR SRC_ERROR src_simple(SRC_DATA *, SRC_SRCTYPE, int);
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SOXR char const * src_get_name(SRC_SRCTYPE);
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SOXR char const * src_get_description(SRC_SRCTYPE);
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SOXR char const * src_get_version(void);
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SOXR char const * src_strerror(SRC_ERROR);
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SOXR int src_is_valid_ratio(double);
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SOXR void src_short_to_float_array(short const *, float *, int);
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SOXR void src_float_to_short_array(float const *, short *, int);
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SOXR void src_int_to_float_array(int const *, float *, int);
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SOXR void src_float_to_int_array(float const *, int *, int);
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#undef SOXR
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#if defined __cplusplus
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}
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#endif
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#endif
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