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66 lines
2.1 KiB
66 lines
2.1 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 void (*resample_one_fn)(uint8_t *dst, const uint8_t *src, |
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int n, int64_t index, int64_t incr); |
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typedef int (*resample_fn)(struct ResampleContext *c, uint8_t *dst, |
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const uint8_t *src, int n, int update_ctx); |
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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 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_shift; |
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int phase_mask; |
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int linear; |
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enum SwrFilterType filter_type; |
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int 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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struct { |
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resample_one_fn resample_one[AV_SAMPLE_FMT_NB - AV_SAMPLE_FMT_S16P]; |
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resample_fn resample_common[AV_SAMPLE_FMT_NB - AV_SAMPLE_FMT_S16P]; |
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resample_fn resample_linear[AV_SAMPLE_FMT_NB - AV_SAMPLE_FMT_S16P]; |
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} dsp; |
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} ResampleContext; |
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void swresample_dsp_init(ResampleContext *c); |
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void swresample_dsp_x86_init(ResampleContext *c); |
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#endif /* SWRESAMPLE_RESAMPLE_H */
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