audio volume filter More...
#include "libavutil/audioconvert.h"
#include "libavutil/common.h"
#include "libavutil/eval.h"
#include "libavutil/float_dsp.h"
#include "libavutil/opt.h"
#include "audio.h"
#include "avfilter.h"
#include "formats.h"
#include "internal.h"
#include "af_volume.h"
Go to the source code of this file.
Macros | |
#define | OFFSET(x) offsetof(VolumeContext, x) |
#define | A AV_OPT_FLAG_AUDIO_PARAM |
Functions | |
static av_cold int | init (AVFilterContext *ctx, const char *args) |
static int | query_formats (AVFilterContext *ctx) |
static void | scale_samples_u8 (uint8_t *dst, const uint8_t *src, int nb_samples, int volume) |
static void | scale_samples_u8_small (uint8_t *dst, const uint8_t *src, int nb_samples, int volume) |
static void | scale_samples_s16 (uint8_t *dst, const uint8_t *src, int nb_samples, int volume) |
static void | scale_samples_s16_small (uint8_t *dst, const uint8_t *src, int nb_samples, int volume) |
static void | scale_samples_s32 (uint8_t *dst, const uint8_t *src, int nb_samples, int volume) |
static void | volume_init (VolumeContext *vol) |
static int | config_output (AVFilterLink *outlink) |
static int | filter_frame (AVFilterLink *inlink, AVFilterBufferRef *buf) |
Variables | |
static const char * | precision_str [] |
static const AVOption | options [] |
static const AVClass | volume_class |
static const AVFilterPad | avfilter_af_volume_inputs [] |
static const AVFilterPad | avfilter_af_volume_outputs [] |
AVFilter | avfilter_af_volume |
audio volume filter
Definition in file af_volume.c.
#define A AV_OPT_FLAG_AUDIO_PARAM |
Definition at line 43 of file af_volume.c.
#define OFFSET | ( | x | ) | offsetof(VolumeContext, x) |
Definition at line 42 of file af_volume.c.
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Definition at line 221 of file af_volume.c.
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Definition at line 236 of file af_volume.c.
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Definition at line 63 of file af_volume.c.
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Definition at line 91 of file af_volume.c.
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inlinestatic |
Definition at line 155 of file af_volume.c.
Referenced by volume_init().
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Definition at line 165 of file af_volume.c.
Referenced by volume_init().
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Definition at line 175 of file af_volume.c.
Referenced by volume_init().
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Definition at line 139 of file af_volume.c.
Referenced by volume_init().
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Definition at line 147 of file af_volume.c.
Referenced by volume_init().
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Definition at line 187 of file af_volume.c.
Referenced by config_output().
AVFilter avfilter_af_volume |
Definition at line 311 of file af_volume.c.
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Definition at line 293 of file af_volume.c.
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Definition at line 302 of file af_volume.c.
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Definition at line 45 of file af_volume.c.
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Definition at line 38 of file af_volume.c.
Referenced by init().
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Definition at line 56 of file af_volume.c.
Referenced by init().