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#ifndef fooresamplerhfoo
#define fooresamplerhfoo
/* $Id$ */
/***
This file is part of polypaudio.
polypaudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
by the Free Software Foundation; either version 2 of the License,
or (at your option) any later version.
polypaudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with polypaudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
USA.
***/
#include <samplerate.h>
#include "sample.h"
#include "memblock.h"
#include "memchunk.h"
struct pa_resampler;
enum pa_resample_method {
PA_RESAMPLER_INVALID = -1,
PA_RESAMPLER_SRC_SINC_BEST_QUALITY = SRC_SINC_BEST_QUALITY,
PA_RESAMPLER_SRC_SINC_MEDIUM_QUALITY = SRC_SINC_MEDIUM_QUALITY,
PA_RESAMPLER_SRC_SINC_FASTEST = SRC_SINC_FASTEST,
PA_RESAMPLER_SRC_ZERO_ORDER_HOLD = SRC_ZERO_ORDER_HOLD,
PA_RESAMPLER_SRC_LINEAR = SRC_LINEAR,
PA_RESAMPLER_TRIVIAL,
PA_RESAMPLER_MAX
};
struct pa_resampler* pa_resampler_new(const struct pa_sample_spec *a, const struct pa_sample_spec *b, struct pa_memblock_stat *s, int resample_method);
void pa_resampler_free(struct pa_resampler *r);
/* Returns the size of an input memory block which is required to return the specified amount of output data */
size_t pa_resampler_request(struct pa_resampler *r, size_t out_length);
/* Pass the specified memory chunk to the resampler and return the newly resampled data */
void pa_resampler_run(struct pa_resampler *r, const struct pa_memchunk *in, struct pa_memchunk *out);
/* Change the input rate of the resampler object */
void pa_resampler_set_input_rate(struct pa_resampler *r, uint32_t rate);
/* Return the resampling method of the resampler object */
enum pa_resample_method pa_resampler_get_method(struct pa_resampler *r);
/* Try to parse the resampler method */
enum pa_resample_method pa_parse_resample_method(const char *string);
/* return a human readable string for the specified resampling method. Inverse of pa_parse_resample_method() */
const char *pa_resample_method_to_string(enum pa_resample_method m);
#endif
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