FFmpeg
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#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/ffmath.h"
#include "libavutil/opt.h"
#include "libavutil/samplefmt.h"
#include "audio.h"
#include "avfilter.h"
#include "internal.h"
Go to the source code of this file.
Data Structures | |
struct | ChanParam |
struct | CompandSegment |
struct | CompandContext |
Macros | |
#define | OFFSET(x) offsetof(CompandContext, x) |
#define | A AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM |
#define | MOD(a, b) (((a) >= (b)) ? (a) - (b) : (a)) |
#define | S(x) s->segments[2 * ((x) + 1)] |
#define | S(x) s->segments[2 * (x)] |
#define | L(x) s->segments[i - (x)] |
Functions | |
AVFILTER_DEFINE_CLASS (compand) | |
static av_cold int | init (AVFilterContext *ctx) |
static av_cold void | uninit (AVFilterContext *ctx) |
static void | count_items (char *item_str, int *nb_items) |
static void | update_volume (ChanParam *cp, double in) |
static double | get_volume (CompandContext *s, double in_lin) |
static int | compand_nodelay (AVFilterContext *ctx, AVFrame *frame) |
static int | compand_delay (AVFilterContext *ctx, AVFrame *frame) |
static int | compand_drain (AVFilterLink *outlink) |
static int | config_output (AVFilterLink *outlink) |
static int | filter_frame (AVFilterLink *inlink, AVFrame *frame) |
static int | request_frame (AVFilterLink *outlink) |
Variables | |
static const AVOption | compand_options [] |
static const AVFilterPad | compand_inputs [] |
static const AVFilterPad | compand_outputs [] |
const AVFilter | ff_af_compand |
audio compand filter
Definition in file af_compand.c.
#define OFFSET | ( | x | ) | offsetof(CompandContext, x) |
Definition at line 71 of file af_compand.c.
Definition at line 72 of file af_compand.c.
#define S | ( | x | ) | s->segments[2 * ((x) + 1)] |
#define S | ( | x | ) | s->segments[2 * (x)] |
AVFILTER_DEFINE_CLASS | ( | compand | ) |
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Definition at line 87 of file af_compand.c.
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Definition at line 94 of file af_compand.c.
Referenced by config_output().
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Definition at line 103 of file af_compand.c.
Referenced by config_output().
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Definition at line 114 of file af_compand.c.
Referenced by compand_delay(), and compand_nodelay().
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Definition at line 124 of file af_compand.c.
Referenced by compand_delay(), compand_drain(), and compand_nodelay().
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Definition at line 145 of file af_compand.c.
Referenced by config_output().
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Definition at line 191 of file af_compand.c.
Referenced by config_output().
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Definition at line 263 of file af_compand.c.
Referenced by request_frame().
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Definition at line 298 of file af_compand.c.
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Definition at line 516 of file af_compand.c.
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Definition at line 524 of file af_compand.c.
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Definition at line 74 of file af_compand.c.
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Definition at line 538 of file af_compand.c.
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Definition at line 546 of file af_compand.c.
const AVFilter ff_af_compand |
Definition at line 556 of file af_compand.c.