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78 lines
3.3 KiB
78 lines
3.3 KiB
/* |
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* audio resampling |
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* Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at> |
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* |
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* This file is part of FFmpeg. |
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* |
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* FFmpeg is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU Lesser General Public |
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* License as published by the Free Software Foundation; either |
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* version 2.1 of the License, or (at your option) any later version. |
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* |
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* FFmpeg is distributed in the hope that it will be useful, |
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* but 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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* Lesser 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 |
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* License along with FFmpeg; if not, write to the Free Software |
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* @file |
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* audio resampling |
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* @author Michael Niedermayer <michaelni@gmx.at> |
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*/ |
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#include "resample.h" |
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int swri_resample_common_int16 (ResampleContext *c, int16_t *dst, const int16_t *src, int n, int update_ctx); |
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int swri_resample_common_int32 (ResampleContext *c, int32_t *dst, const int32_t *src, int n, int update_ctx); |
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int swri_resample_common_float (ResampleContext *c, float *dst, const float *src, int n, int update_ctx); |
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int swri_resample_common_double(ResampleContext *c, double *dst, const double *src, int n, int update_ctx); |
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int swri_resample_linear_int16 (ResampleContext *c, int16_t *dst, const int16_t *src, int n, int update_ctx); |
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int swri_resample_linear_int32 (ResampleContext *c, int32_t *dst, const int32_t *src, int n, int update_ctx); |
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int swri_resample_linear_float (ResampleContext *c, float *dst, const float *src, int n, int update_ctx); |
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int swri_resample_linear_double(ResampleContext *c, double *dst, const double *src, int n, int update_ctx); |
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#define DO_RESAMPLE_ONE 1 |
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#define TEMPLATE_RESAMPLE_S16 |
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#include "resample_template.c" |
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#undef TEMPLATE_RESAMPLE_S16 |
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#define TEMPLATE_RESAMPLE_S32 |
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#include "resample_template.c" |
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#undef TEMPLATE_RESAMPLE_S32 |
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#define TEMPLATE_RESAMPLE_FLT |
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#include "resample_template.c" |
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#undef TEMPLATE_RESAMPLE_FLT |
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#define TEMPLATE_RESAMPLE_DBL |
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#include "resample_template.c" |
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#undef TEMPLATE_RESAMPLE_DBL |
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#undef DO_RESAMPLE_ONE |
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void swresample_dsp_init(ResampleContext *c) |
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{ |
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#define FNIDX(fmt) (AV_SAMPLE_FMT_##fmt - AV_SAMPLE_FMT_S16P) |
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c->dsp.resample_one[FNIDX(S16P)] = (resample_one_fn) resample_one_int16; |
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c->dsp.resample_one[FNIDX(S32P)] = (resample_one_fn) resample_one_int32; |
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c->dsp.resample_one[FNIDX(FLTP)] = (resample_one_fn) resample_one_float; |
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c->dsp.resample_one[FNIDX(DBLP)] = (resample_one_fn) resample_one_double; |
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c->dsp.resample_common[FNIDX(S16P)] = (resample_fn) swri_resample_common_int16; |
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c->dsp.resample_common[FNIDX(S32P)] = (resample_fn) swri_resample_common_int32; |
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c->dsp.resample_common[FNIDX(FLTP)] = (resample_fn) swri_resample_common_float; |
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c->dsp.resample_common[FNIDX(DBLP)] = (resample_fn) swri_resample_common_double; |
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c->dsp.resample_linear[FNIDX(S16P)] = (resample_fn) swri_resample_linear_int16; |
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c->dsp.resample_linear[FNIDX(S32P)] = (resample_fn) swri_resample_linear_int32; |
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c->dsp.resample_linear[FNIDX(FLTP)] = (resample_fn) swri_resample_linear_float; |
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c->dsp.resample_linear[FNIDX(DBLP)] = (resample_fn) swri_resample_linear_double; |
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if (ARCH_X86) swresample_dsp_x86_init(c); |
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}
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