mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-12-02 03:06:28 +02:00
d545668e25
This fixes depending on implementation defined behavior Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
94 lines
2.1 KiB
C
94 lines
2.1 KiB
C
/*
|
|
* 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
|
|
*/
|
|
|
|
/**
|
|
* @file
|
|
* audio volume filter
|
|
*/
|
|
|
|
#ifndef AVFILTER_AF_VOLUME_H
|
|
#define AVFILTER_AF_VOLUME_H
|
|
|
|
#include "libavutil/common.h"
|
|
#include "libavutil/eval.h"
|
|
#include "libavutil/float_dsp.h"
|
|
#include "libavutil/opt.h"
|
|
#include "libavutil/samplefmt.h"
|
|
|
|
enum PrecisionType {
|
|
PRECISION_FIXED = 0,
|
|
PRECISION_FLOAT,
|
|
PRECISION_DOUBLE,
|
|
};
|
|
|
|
enum EvalMode {
|
|
EVAL_MODE_ONCE,
|
|
EVAL_MODE_FRAME,
|
|
EVAL_MODE_NB
|
|
};
|
|
|
|
enum VolumeVarName {
|
|
VAR_N,
|
|
VAR_NB_CHANNELS,
|
|
VAR_NB_CONSUMED_SAMPLES,
|
|
VAR_NB_SAMPLES,
|
|
VAR_POS,
|
|
VAR_PTS,
|
|
VAR_SAMPLE_RATE,
|
|
VAR_STARTPTS,
|
|
VAR_STARTT,
|
|
VAR_T,
|
|
VAR_TB,
|
|
VAR_VOLUME,
|
|
VAR_VARS_NB
|
|
};
|
|
|
|
enum ReplayGainType {
|
|
REPLAYGAIN_DROP,
|
|
REPLAYGAIN_IGNORE,
|
|
REPLAYGAIN_TRACK,
|
|
REPLAYGAIN_ALBUM,
|
|
};
|
|
|
|
typedef struct VolumeContext {
|
|
const AVClass *class;
|
|
AVFloatDSPContext *fdsp;
|
|
int precision;
|
|
int eval_mode;
|
|
const char *volume_expr;
|
|
AVExpr *volume_pexpr;
|
|
double var_values[VAR_VARS_NB];
|
|
|
|
int replaygain;
|
|
double replaygain_preamp;
|
|
int replaygain_noclip;
|
|
double volume;
|
|
int volume_i;
|
|
int channels;
|
|
int planes;
|
|
enum AVSampleFormat sample_fmt;
|
|
|
|
void (*scale_samples)(uint8_t *dst, const uint8_t *src, int nb_samples,
|
|
int volume);
|
|
int samples_align;
|
|
} VolumeContext;
|
|
|
|
void ff_volume_init_x86(VolumeContext *vol);
|
|
|
|
#endif /* AVFILTER_AF_VOLUME_H */
|