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67 lines
2.2 KiB
67 lines
2.2 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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#ifndef SWRESAMPLE_RESAMPLE_H |
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#define SWRESAMPLE_RESAMPLE_H |
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#include "libavutil/log.h" |
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#include "libavutil/samplefmt.h" |
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#include "swresample_internal.h" |
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typedef struct ResampleContext { |
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const AVClass *av_class; |
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uint8_t *filter_bank; |
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int filter_length; |
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int filter_alloc; |
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int ideal_dst_incr; |
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int dst_incr; |
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int dst_incr_div; |
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int dst_incr_mod; |
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int index; |
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int frac; |
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int src_incr; |
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int compensation_distance; |
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int phase_count; |
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int linear; |
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enum SwrFilterType filter_type; |
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double kaiser_beta; |
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double factor; |
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enum AVSampleFormat format; |
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int felem_size; |
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int filter_shift; |
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int phase_count_compensation; /* desired phase_count when compensation is enabled */ |
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struct { |
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void (*resample_one)(void *dst, const void *src, |
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int n, int64_t index, int64_t incr); |
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int (*resample_common)(struct ResampleContext *c, void *dst, |
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const void *src, int n, int update_ctx); |
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int (*resample_linear)(struct ResampleContext *c, void *dst, |
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const void *src, int n, int update_ctx); |
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} dsp; |
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} ResampleContext; |
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void swri_resample_dsp_init(ResampleContext *c); |
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void swri_resample_dsp_x86_init(ResampleContext *c); |
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void swri_resample_dsp_arm_init(ResampleContext *c); |
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#endif /* SWRESAMPLE_RESAMPLE_H */
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