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e1f008f2a3
git-svn-id: file:///home/lennart/svn/public/pulseaudio/branches/liboil-test@344 fefdeb5f-60dc-0310-8127-8f9354f1896f
72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
#ifndef fooresamplerhfoo
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#define fooresamplerhfoo
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/* $Id$ */
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/***
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This file is part of polypaudio.
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polypaudio is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published
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by the Free Software Foundation; either version 2 of the License,
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or (at your option) any later version.
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polypaudio 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
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General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with polypaudio; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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USA.
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***/
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#include <samplerate.h>
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#include "sample.h"
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#include "memblock.h"
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#include "memchunk.h"
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struct pa_resampler;
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typedef enum {
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PA_RESAMPLER_INVALID = -1,
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PA_RESAMPLER_SRC_SINC_BEST_QUALITY = SRC_SINC_BEST_QUALITY,
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PA_RESAMPLER_SRC_SINC_MEDIUM_QUALITY = SRC_SINC_MEDIUM_QUALITY,
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PA_RESAMPLER_SRC_SINC_FASTEST = SRC_SINC_FASTEST,
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PA_RESAMPLER_SRC_ZERO_ORDER_HOLD = SRC_ZERO_ORDER_HOLD,
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PA_RESAMPLER_SRC_LINEAR = SRC_LINEAR,
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PA_RESAMPLER_TRIVIAL,
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PA_RESAMPLER_MAX
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} pa_resample_method_t;
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struct pa_resampler* pa_resampler_new(
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const struct pa_sample_spec *a,
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const struct pa_channel_map *am,
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const struct pa_sample_spec *b,
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const struct pa_channel_map *bm,
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struct pa_memblock_stat *s,
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pa_resample_method_t resample_method);
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void pa_resampler_free(struct pa_resampler *r);
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/* Returns the size of an input memory block which is required to return the specified amount of output data */
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size_t pa_resampler_request(struct pa_resampler *r, size_t out_length);
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/* Pass the specified memory chunk to the resampler and return the newly resampled data */
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void pa_resampler_run(struct pa_resampler *r, const struct pa_memchunk *in, struct pa_memchunk *out);
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/* Change the input rate of the resampler object */
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void pa_resampler_set_input_rate(struct pa_resampler *r, uint32_t rate);
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/* Return the resampling method of the resampler object */
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pa_resample_method_t pa_resampler_get_method(struct pa_resampler *r);
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/* Try to parse the resampler method */
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pa_resample_method_t pa_parse_resample_method(const char *string);
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/* return a human readable string for the specified resampling method. Inverse of pa_parse_resample_method() */
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const char *pa_resample_method_to_string(pa_resample_method_t m);
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#endif
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