mirror of https://git.ffmpeg.org/ffmpeg.git
68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/*
|
|
* audio resampling
|
|
* Copyright (c) 2004-2012 Michael Niedermayer <michaelni@gmx.at>
|
|
*
|
|
* This file is part of FFmpeg.
|
|
*
|
|
* FFmpeg is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2.1 of the License, or (at your option) any later version.
|
|
*
|
|
* FFmpeg is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with FFmpeg; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef SWRESAMPLE_RESAMPLE_H
|
|
#define SWRESAMPLE_RESAMPLE_H
|
|
|
|
#include "libavutil/log.h"
|
|
#include "libavutil/samplefmt.h"
|
|
|
|
#include "swresample_internal.h"
|
|
|
|
typedef struct ResampleContext {
|
|
const AVClass *av_class;
|
|
uint8_t *filter_bank;
|
|
int filter_length;
|
|
int filter_alloc;
|
|
int ideal_dst_incr;
|
|
int dst_incr;
|
|
int dst_incr_div;
|
|
int dst_incr_mod;
|
|
int index;
|
|
int frac;
|
|
int src_incr;
|
|
int compensation_distance;
|
|
int phase_count;
|
|
int linear;
|
|
enum SwrFilterType filter_type;
|
|
double kaiser_beta;
|
|
double factor;
|
|
enum AVSampleFormat format;
|
|
int felem_size;
|
|
int filter_shift;
|
|
int phase_count_compensation; /* desired phase_count when compensation is enabled */
|
|
|
|
struct {
|
|
void (*resample_one)(void *dst, const void *src,
|
|
int n, int64_t index, int64_t incr);
|
|
int (*resample_common)(struct ResampleContext *c, void *dst,
|
|
const void *src, int n, int update_ctx);
|
|
int (*resample_linear)(struct ResampleContext *c, void *dst,
|
|
const void *src, int n, int update_ctx);
|
|
} dsp;
|
|
} ResampleContext;
|
|
|
|
void swri_resample_dsp_init(ResampleContext *c);
|
|
void swri_resample_dsp_x86_init(ResampleContext *c);
|
|
void swri_resample_dsp_arm_init(ResampleContext *c);
|
|
|
|
#endif /* SWRESAMPLE_RESAMPLE_H */
|