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libswresample
resample.h
Go to the documentation of this file.
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/*
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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_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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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
)(
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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#endif
/* SWRESAMPLE_RESAMPLE_H */
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