FFmpeg
Data Structures | Macros | Enumerations | Functions | Variables
af_dynaudnorm.c File Reference
#include <float.h>
#include "libavutil/avassert.h"
#include "libavutil/channel_layout.h"
#include "libavutil/eval.h"
#include "libavutil/opt.h"
#include "libavfilter/bufferqueue.h"
#include "audio.h"
#include "avfilter.h"
#include "filters.h"
#include "internal.h"

Go to the source code of this file.

Data Structures

struct  local_gain
 
struct  cqueue
 
struct  DynamicAudioNormalizerContext
 
struct  ThreadData
 Used for passing data between threads. More...
 

Macros

#define MIN_FILTER_SIZE   3
 
#define MAX_FILTER_SIZE   301
 
#define FF_BUFQUEUE_SIZE   (MAX_FILTER_SIZE + 1)
 
#define OFFSET(x)   offsetof(DynamicAudioNormalizerContext, x)
 
#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM
 

Enumerations

enum  var_name {
  VAR_N, VAR_TB, VAR_PTS, VAR_DTS,
  VAR_NOPTS, VAR_STARTPTS, VAR_STARTDTS, VAR_DURATION,
  VAR_D, VAR_POS, VAR_SIZE, VAR_KEY,
  VAR_STATE, VAR_VARS_NB, VAR_N, VAR_TS,
  VAR_POS, VAR_PREV_INPTS, VAR_PREV_INDTS, VAR_PREV_INDUR,
  VAR_PREV_OUTPTS, VAR_PREV_OUTDTS, VAR_PREV_OUTDUR, VAR_NEXT_PTS,
  VAR_NEXT_DTS, VAR_NEXT_DUR, VAR_PTS, VAR_DTS,
  VAR_DURATION, VAR_STARTPTS, VAR_STARTDTS, VAR_TB,
  VAR_TB_OUT, VAR_SR, VAR_NOPTS, VAR_VARS_NB,
  VAR_CH, VAR_N, VAR_NB_IN_CHANNELS, VAR_NB_OUT_CHANNELS,
  VAR_T, VAR_S, VAR_VARS_NB, VAR_CH,
  VAR_SN, VAR_NB_CHANNELS, VAR_T, VAR_SR,
  VAR_P, VAR_VARS_NB, VAR_W, VAR_H,
  VAR_CW, VAR_CH, VAR_HSUB, VAR_VSUB,
  VARS_NB, VAR_VALUE1, VAR_VALUE2, VAR_FRAMEVAL,
  VAR_USERVAL, VAR_VARS_NB, VAR_TB, VAR_PTS,
  VAR_START_PTS, VAR_PREV_PTS, VAR_PREV_SELECTED_PTS, VAR_T,
  VAR_START_T, VAR_PREV_T, VAR_PREV_SELECTED_T, VAR_PICT_TYPE,
  VAR_I, VAR_P, VAR_B, VAR_S,
  VAR_SI, VAR_SP, VAR_BI, VAR_PICT_TYPE_I,
  VAR_PICT_TYPE_P, VAR_PICT_TYPE_B, VAR_PICT_TYPE_S, VAR_PICT_TYPE_SI,
  VAR_PICT_TYPE_SP, VAR_PICT_TYPE_BI, VAR_INTERLACE_TYPE, VAR_INTERLACE_TYPE_P,
  VAR_INTERLACE_TYPE_T, VAR_INTERLACE_TYPE_B, VAR_CONSUMED_SAMPLES_N, VAR_SAMPLES_N,
  VAR_SAMPLE_RATE, VAR_N, VAR_SELECTED_N, VAR_PREV_SELECTED_N,
  VAR_KEY, VAR_POS, VAR_SCENE, VAR_CONCATDEC_SELECT,
  VAR_VARS_NB, VAR_N, VAR_T, VAR_POS,
  VAR_PTS, VAR_TS, VAR_TE, VAR_TI,
  VAR_W, VAR_H, VAR_VARS_NB, VAR_IN_W,
  VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,
  VAR_OW, VAR_OUT_H, VAR_OH, VAR_A,
  VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB,
  VAR_OHSUB, VAR_OVSUB, VARS_NB, VAR_FRAME_RATE,
  VAR_INTERLACED, VAR_N, VAR_NB_CONSUMED_SAMPLES, VAR_NB_SAMPLES,
  VAR_POS, VAR_PREV_INPTS, VAR_PREV_INT, VAR_PREV_OUTPTS,
  VAR_PREV_OUTT, VAR_PTS, VAR_SAMPLE_RATE, VAR_STARTPTS,
  VAR_STARTT, VAR_T, VAR_TB, VAR_RTCTIME,
  VAR_RTCSTART, VAR_S, VAR_SR, VAR_FR,
  VAR_VARS_NB, VAR_AVTB, VAR_INTB, VAR_SR,
  VAR_VARS_NB, VAR_W, VAR_H, VAR_A,
  VAR_DAR, VAR_SAR, VAR_HSUB, VAR_VSUB,
  VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,
  VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,
  VAR_OH, VAR_A, VAR_SAR, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VAR_X, VAR_Y,
  VAR_N, VAR_POS, VAR_T, VAR_VARS_NB,
  VAR_X, VAR_Y, VAR_W, VAR_H,
  VAR_N, VAR_T, VAR_VARS_NB, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VAR_IN_H, VAR_IH,
  VAR_IN_W, VAR_IW, VAR_SAR, VAR_X,
  VAR_Y, VAR_H, VAR_W, VAR_T,
  VAR_MAX, VARS_NB, VAR_DAR, VAR_HSUB,
  VAR_VSUB, VAR_LINE_H, VAR_LH, VAR_MAIN_H,
  VAR_h, VAR_H, VAR_MAIN_W, VAR_w,
  VAR_W, VAR_MAX_GLYPH_A, VAR_ASCENT, VAR_MAX_GLYPH_D,
  VAR_DESCENT, VAR_MAX_GLYPH_H, VAR_MAX_GLYPH_W, VAR_N,
  VAR_SAR, VAR_T, VAR_TEXT_H, VAR_TH,
  VAR_TEXT_W, VAR_TW, VAR_X, VAR_Y,
  VAR_PICT_TYPE, VAR_PKT_POS, VAR_PKT_SIZE, VAR_DURATION,
  VAR_VARS_NB, VAR_N, VAR_POS, VAR_R,
  VAR_T, VAR_NB, VAR_SOURCE_FPS, VAR_FPS_NTSC,
  VAR_FPS_PAL, VAR_FPS_FILM, VAR_FPS_NTSC_FILM, VARS_NB,
  VAR_N, VAR_PTS, VAR_R, VAR_T,
  VAR_TB, VAR_NB, VAR_W, VAR_H,
  VAR_VAL, VAR_MAXVAL, VAR_MINVAL, VAR_NEGVAL,
  VAR_CLIPVAL, VAR_VARS_NB, VAR_W, VAR_H,
  VAR_X, VAR_Y, VAR_BITDEPTHX, VAR_BITDEPTHY,
  VAR_VARS_NB, VAR_MAIN_W, VAR_MW, VAR_MAIN_H,
  VAR_MH, VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H,
  VAR_OH, VAR_HSUB, VAR_VSUB, VAR_X,
  VAR_Y, VAR_N, VAR_POS, VAR_T,
  VAR_VARS_NB, VAR_MAIN_W, VAR_MW, VAR_MAIN_H,
  VAR_MH, VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H,
  VAR_OH, VAR_X, VAR_Y, VAR_N,
  VAR_POS, VAR_T, VAR_VARS_NB, VAR_MAIN_iW,
  VAR_MW, VAR_MAIN_iH, VAR_MH, VAR_OVERLAY_iW,
  VAR_OVERLAY_iH, VAR_OVERLAY_X, VAR_OX, VAR_OVERLAY_Y,
  VAR_OY, VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H,
  VAR_OH, VAR_VARS_NB, VAR_MAIN_IW, VAR_MW,
  VAR_MAIN_IH, VAR_MH, VAR_OVERLAY_IW, VAR_OVERLAY_IH,
  VAR_OVERLAY_X, VAR_OX, VAR_OVERLAY_Y, VAR_OY,
  VAR_OVERLAY_W, VAR_OW, VAR_OVERLAY_H, VAR_OH,
  VAR_VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,
  VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,
  VAR_OH, VAR_X, VAR_Y, VAR_A,
  VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB,
  VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,
  VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,
  VAR_OH, VAR_X, VAR_Y, VAR_A,
  VAR_SAR, VAR_DAR, VARS_NB, VAR_W,
  VAR_H, VAR_VAL, VAR_YMIN, VAR_UMIN,
  VAR_VMIN, VAR_AMIN, VAR_YMAX, VAR_UMAX,
  VAR_VMAX, VAR_AMAX, VAR_VARS_NB, VAR_IN_W,
  VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,
  VAR_OW, VAR_OUT_H, VAR_OH, VAR_HSUB,
  VAR_VSUB, VAR_N, VAR_T, VAR_VARS_NB,
  VAR_IN_W, VAR_IW, VAR_IN_H, VAR_IH,
  VAR_OUT_W, VAR_OW, VAR_OUT_H, VAR_OH,
  VAR_A, VAR_SAR, VAR_DAR, VAR_HSUB,
  VAR_VSUB, VAR_OHSUB, VAR_OVSUB, VAR_N,
  VAR_T, VAR_POS, VAR_S2R_MAIN_W, VAR_S2R_MAIN_H,
  VAR_S2R_MAIN_A, VAR_S2R_MAIN_SAR, VAR_S2R_MAIN_DAR, VAR_S2R_MDAR,
  VAR_S2R_MAIN_HSUB, VAR_S2R_MAIN_VSUB, VAR_S2R_MAIN_N, VAR_S2R_MAIN_T,
  VAR_S2R_MAIN_POS, VARS_NB, VAR_IN_W, VAR_IW,
  VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW,
  VAR_OUT_H, VAR_OH, VAR_A, VAR_SAR,
  VAR_DAR, VAR_N, VAR_T, VAR_POS,
  VAR_S2R_MAIN_W, VAR_S2R_MAIN_H, VAR_S2R_MAIN_A, VAR_S2R_MAIN_SAR,
  VAR_S2R_MAIN_DAR, VAR_S2R_MDAR, VAR_S2R_MAIN_N, VAR_S2R_MAIN_T,
  VAR_S2R_MAIN_POS, VARS_NB, VAR_IN_W, VAR_IW,
  VAR_IN_H, VAR_IH, VAR_OUT_W, VAR_OW,
  VAR_OUT_H, VAR_OH, VAR_A, VAR_DAR,
  VAR_SAR, VARS_NB, VAR_W, VAR_H,
  VAR_N, VAR_PTS, VAR_R, VAR_T,
  VAR_TB, VAR_NB, VAR_iW, VAR_IN_W,
  VAR_iH, VAR_IN_H, VAR_oW, VAR_OUT_W,
  VAR_W, VAR_oH, VAR_OUT_H, VAR_H,
  CW, CH, CX, CY,
  VAR_VARS_NB, VAR_IN_W, VAR_IW, VAR_IN_H,
  VAR_IH, VAR_OUT_W, VAR_OW, VAR_OUT_H,
  VAR_OH, VAR_IN, VAR_ON, VAR_DURATION,
  VAR_PDURATION, VAR_IN_TIME, VAR_IT, VAR_TIME,
  VAR_OUT_TIME, VAR_OT, VAR_FRAME, VAR_ZOOM,
  VAR_PZOOM, VAR_X, VAR_PX, VAR_Y,
  VAR_PY, VAR_A, VAR_SAR, VAR_DAR,
  VAR_HSUB, VAR_VSUB, VARS_NB, VAR_IN_W,
  VAR_IW, VAR_IN_H, VAR_IH, VAR_OUT_W,
  VAR_OW, VAR_OUT_H, VAR_OH, VAR_A,
  VAR_SAR, VAR_DAR, VAR_HSUB, VAR_VSUB,
  VAR_OHSUB, VAR_OVSUB, VARS_NB, VAR_X,
  VAR_Y, VAR_W, VAR_H, VAR_TIME,
  VAR_SPEED, VAR_TEMPO, VAR_ORDER, VAR_PATTERN,
  VAR_ROW, VAR_VARS_NB
}
 

Functions

 AVFILTER_DEFINE_CLASS (dynaudnorm)
 
static av_cold int init (AVFilterContext *ctx)
 
static int frame_size (int sample_rate, int frame_len_msec)
 
static cqueuecqueue_create (int size, int max_size)
 
static void cqueue_free (cqueue *q)
 
static int cqueue_size (cqueue *q)
 
static int cqueue_empty (cqueue *q)
 
static int cqueue_enqueue (cqueue *q, double element)
 
static double cqueue_peek (cqueue *q, int index)
 
static int cqueue_dequeue (cqueue *q, double *element)
 
static int cqueue_pop (cqueue *q)
 
static void cqueue_resize (cqueue *q, int new_size)
 
static void init_gaussian_filter (DynamicAudioNormalizerContext *s)
 
static av_cold void uninit (AVFilterContext *ctx)
 
static int config_input (AVFilterLink *inlink)
 
static double fade (double prev, double next, int pos, int length)
 
static double pow_2 (const double value)
 
static double bound (const double threshold, const double val)
 
static double find_peak_magnitude (AVFrame *frame, int channel)
 
static double compute_frame_rms (AVFrame *frame, int channel)
 
static local_gain get_max_local_gain (DynamicAudioNormalizerContext *s, AVFrame *frame, int channel)
 
static double minimum_filter (cqueue *q)
 
static double gaussian_filter (DynamicAudioNormalizerContext *s, cqueue *q, cqueue *tq)
 
static void update_gain_history (DynamicAudioNormalizerContext *s, int channel, local_gain gain)
 
static int update_gain_histories (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static double update_value (double new, double old, double aggressiveness)
 
static int bypass_channel (DynamicAudioNormalizerContext *s, AVFrame *frame, int ch)
 
static void perform_dc_correction (DynamicAudioNormalizerContext *s, AVFrame *frame)
 
static double setup_compress_thresh (double threshold)
 
static double compute_frame_std_dev (DynamicAudioNormalizerContext *s, AVFrame *frame, int channel)
 
static void perform_compression (DynamicAudioNormalizerContext *s, AVFrame *frame)
 
static int analyze_frame (AVFilterContext *ctx, AVFilterLink *outlink, AVFrame **frame)
 
static void amplify_channel (DynamicAudioNormalizerContext *s, AVFrame *in, AVFrame *frame, int enabled, int c)
 
static int amplify_channels (AVFilterContext *ctx, void *arg, int jobnr, int nb_jobs)
 
static int filter_frame (AVFilterLink *inlink, AVFrame *in)
 
static int flush_buffer (DynamicAudioNormalizerContext *s, AVFilterLink *inlink, AVFilterLink *outlink)
 
static int flush (AVFilterLink *outlink)
 
static int activate (AVFilterContext *ctx)
 
static int process_command (AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
 

Variables

static const char *const var_names []
 
static const AVOption dynaudnorm_options []
 
static const AVFilterPad avfilter_af_dynaudnorm_inputs []
 
static const AVFilterPad avfilter_af_dynaudnorm_outputs []
 
const AVFilter ff_af_dynaudnorm
 

Detailed Description

Dynamic Audio Normalizer

Definition in file af_dynaudnorm.c.

Macro Definition Documentation

◆ MIN_FILTER_SIZE

#define MIN_FILTER_SIZE   3

Definition at line 34 of file af_dynaudnorm.c.

◆ MAX_FILTER_SIZE

#define MAX_FILTER_SIZE   301

Definition at line 35 of file af_dynaudnorm.c.

◆ FF_BUFQUEUE_SIZE

#define FF_BUFQUEUE_SIZE   (MAX_FILTER_SIZE + 1)

Definition at line 37 of file af_dynaudnorm.c.

◆ OFFSET

#define OFFSET (   x)    offsetof(DynamicAudioNormalizerContext, x)

Definition at line 126 of file af_dynaudnorm.c.

◆ FLAGS

Definition at line 127 of file af_dynaudnorm.c.

Enumeration Type Documentation

◆ var_name

enum var_name
Enumerator
VAR_N 
VAR_TB 
VAR_PTS 
VAR_DTS 
VAR_NOPTS 
VAR_STARTPTS 
VAR_STARTDTS 
VAR_DURATION 
VAR_D 
VAR_POS 
VAR_SIZE 
VAR_KEY 
VAR_STATE 
VAR_VARS_NB 
VAR_N 
VAR_TS 
VAR_POS 
VAR_PREV_INPTS 
VAR_PREV_INDTS 
VAR_PREV_INDUR 
VAR_PREV_OUTPTS 
VAR_PREV_OUTDTS 
VAR_PREV_OUTDUR 
VAR_NEXT_PTS 
VAR_NEXT_DTS 
VAR_NEXT_DUR 
VAR_PTS 
VAR_DTS 
VAR_DURATION 
VAR_STARTPTS 
VAR_STARTDTS 
VAR_TB 
VAR_TB_OUT 
VAR_SR 
VAR_NOPTS 
VAR_VARS_NB 
VAR_CH 
VAR_N 
VAR_NB_IN_CHANNELS 
VAR_NB_OUT_CHANNELS 
VAR_T 
VAR_S 
VAR_VARS_NB 
VAR_CH 
VAR_SN 
VAR_NB_CHANNELS 
VAR_T 
VAR_SR 
VAR_P 
VAR_VARS_NB 
VAR_W 
VAR_H 
VAR_CW 
VAR_CH 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_VALUE1 
VAR_VALUE2 
VAR_FRAMEVAL 
VAR_USERVAL 
VAR_VARS_NB 
VAR_TB 
VAR_PTS 
VAR_START_PTS 
VAR_PREV_PTS 
VAR_PREV_SELECTED_PTS 
VAR_T 
VAR_START_T 
VAR_PREV_T 
VAR_PREV_SELECTED_T 
VAR_PICT_TYPE 
VAR_I 
VAR_P 
VAR_B 
VAR_S 
VAR_SI 
VAR_SP 
VAR_BI 
VAR_PICT_TYPE_I 
VAR_PICT_TYPE_P 
VAR_PICT_TYPE_B 
VAR_PICT_TYPE_S 
VAR_PICT_TYPE_SI 
VAR_PICT_TYPE_SP 
VAR_PICT_TYPE_BI 
VAR_INTERLACE_TYPE 
VAR_INTERLACE_TYPE_P 
VAR_INTERLACE_TYPE_T 
VAR_INTERLACE_TYPE_B 
VAR_CONSUMED_SAMPLES_N 
VAR_SAMPLES_N 
VAR_SAMPLE_RATE 
VAR_N 
VAR_SELECTED_N 
VAR_PREV_SELECTED_N 
VAR_KEY 
VAR_POS 
VAR_SCENE 
VAR_CONCATDEC_SELECT 
VAR_VARS_NB 
VAR_N 
VAR_T 
VAR_POS 
VAR_PTS 
VAR_TS 
VAR_TE 
VAR_TI 
VAR_W 
VAR_H 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_OHSUB 
VAR_OVSUB 
VARS_NB 
VAR_FRAME_RATE 
VAR_INTERLACED 
VAR_N 
VAR_NB_CONSUMED_SAMPLES 
VAR_NB_SAMPLES 
VAR_POS 
VAR_PREV_INPTS 
VAR_PREV_INT 
VAR_PREV_OUTPTS 
VAR_PREV_OUTT 
VAR_PTS 
VAR_SAMPLE_RATE 
VAR_STARTPTS 
VAR_STARTT 
VAR_T 
VAR_TB 
VAR_RTCTIME 
VAR_RTCSTART 
VAR_S 
VAR_SR 
VAR_FR 
VAR_VARS_NB 
VAR_AVTB 
VAR_INTB 
VAR_SR 
VAR_VARS_NB 
VAR_W 
VAR_H 
VAR_A 
VAR_DAR 
VAR_SAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_X 
VAR_Y 
VAR_N 
VAR_POS 
VAR_T 
VAR_VARS_NB 
VAR_X 
VAR_Y 
VAR_W 
VAR_H 
VAR_N 
VAR_T 
VAR_VARS_NB 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_IN_H 
VAR_IH 
VAR_IN_W 
VAR_IW 
VAR_SAR 
VAR_X 
VAR_Y 
VAR_H 
VAR_W 
VAR_T 
VAR_MAX 
VARS_NB 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_LINE_H 
VAR_LH 
VAR_MAIN_H 
VAR_h 
VAR_H 
VAR_MAIN_W 
VAR_w 
VAR_W 
VAR_MAX_GLYPH_A 
VAR_ASCENT 
VAR_MAX_GLYPH_D 
VAR_DESCENT 
VAR_MAX_GLYPH_H 
VAR_MAX_GLYPH_W 
VAR_N 
VAR_SAR 
VAR_T 
VAR_TEXT_H 
VAR_TH 
VAR_TEXT_W 
VAR_TW 
VAR_X 
VAR_Y 
VAR_PICT_TYPE 
VAR_PKT_POS 
VAR_PKT_SIZE 
VAR_DURATION 
VAR_VARS_NB 
VAR_N 
VAR_POS 
VAR_R 
VAR_T 
VAR_NB 
VAR_SOURCE_FPS 
VAR_FPS_NTSC 
VAR_FPS_PAL 
VAR_FPS_FILM 
VAR_FPS_NTSC_FILM 
VARS_NB 
VAR_N 
VAR_PTS 
VAR_R 
VAR_T 
VAR_TB 
VAR_NB 
VAR_W 
VAR_H 
VAR_VAL 
VAR_MAXVAL 
VAR_MINVAL 
VAR_NEGVAL 
VAR_CLIPVAL 
VAR_VARS_NB 
VAR_W 
VAR_H 
VAR_X 
VAR_Y 
VAR_BITDEPTHX 
VAR_BITDEPTHY 
VAR_VARS_NB 
VAR_MAIN_W 
VAR_MW 
VAR_MAIN_H 
VAR_MH 
VAR_OVERLAY_W 
VAR_OW 
VAR_OVERLAY_H 
VAR_OH 
VAR_HSUB 
VAR_VSUB 
VAR_X 
VAR_Y 
VAR_N 
VAR_POS 
VAR_T 
VAR_VARS_NB 
VAR_MAIN_W 
VAR_MW 
VAR_MAIN_H 
VAR_MH 
VAR_OVERLAY_W 
VAR_OW 
VAR_OVERLAY_H 
VAR_OH 
VAR_X 
VAR_Y 
VAR_N 
VAR_POS 
VAR_T 
VAR_VARS_NB 
VAR_MAIN_iW 
VAR_MW 
VAR_MAIN_iH 
VAR_MH 
VAR_OVERLAY_iW 
VAR_OVERLAY_iH 
VAR_OVERLAY_X 
VAR_OX 
VAR_OVERLAY_Y 
VAR_OY 
VAR_OVERLAY_W 
VAR_OW 
VAR_OVERLAY_H 
VAR_OH 
VAR_VARS_NB 
VAR_MAIN_IW 
VAR_MW 
VAR_MAIN_IH 
VAR_MH 
VAR_OVERLAY_IW 
VAR_OVERLAY_IH 
VAR_OVERLAY_X 
VAR_OX 
VAR_OVERLAY_Y 
VAR_OY 
VAR_OVERLAY_W 
VAR_OW 
VAR_OVERLAY_H 
VAR_OH 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_X 
VAR_Y 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_X 
VAR_Y 
VAR_A 
VAR_SAR 
VAR_DAR 
VARS_NB 
VAR_W 
VAR_H 
VAR_VAL 
VAR_YMIN 
VAR_UMIN 
VAR_VMIN 
VAR_AMIN 
VAR_YMAX 
VAR_UMAX 
VAR_VMAX 
VAR_AMAX 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_HSUB 
VAR_VSUB 
VAR_N 
VAR_T 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_OHSUB 
VAR_OVSUB 
VAR_N 
VAR_T 
VAR_POS 
VAR_S2R_MAIN_W 
VAR_S2R_MAIN_H 
VAR_S2R_MAIN_A 
VAR_S2R_MAIN_SAR 
VAR_S2R_MAIN_DAR 
VAR_S2R_MDAR 
VAR_S2R_MAIN_HSUB 
VAR_S2R_MAIN_VSUB 
VAR_S2R_MAIN_N 
VAR_S2R_MAIN_T 
VAR_S2R_MAIN_POS 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_N 
VAR_T 
VAR_POS 
VAR_S2R_MAIN_W 
VAR_S2R_MAIN_H 
VAR_S2R_MAIN_A 
VAR_S2R_MAIN_SAR 
VAR_S2R_MAIN_DAR 
VAR_S2R_MDAR 
VAR_S2R_MAIN_N 
VAR_S2R_MAIN_T 
VAR_S2R_MAIN_POS 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_DAR 
VAR_SAR 
VARS_NB 
VAR_W 
VAR_H 
VAR_N 
VAR_PTS 
VAR_R 
VAR_T 
VAR_TB 
VAR_NB 
VAR_iW 
VAR_IN_W 
VAR_iH 
VAR_IN_H 
VAR_oW 
VAR_OUT_W 
VAR_W 
VAR_oH 
VAR_OUT_H 
VAR_H 
CW 
CH 
CX 
CY 
VAR_VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_IN 
VAR_ON 
VAR_DURATION 
VAR_PDURATION 
VAR_IN_TIME 
VAR_IT 
VAR_TIME 
VAR_OUT_TIME 
VAR_OT 
VAR_FRAME 
VAR_ZOOM 
VAR_PZOOM 
VAR_X 
VAR_PX 
VAR_Y 
VAR_PY 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VARS_NB 
VAR_IN_W 
VAR_IW 
VAR_IN_H 
VAR_IH 
VAR_OUT_W 
VAR_OW 
VAR_OUT_H 
VAR_OH 
VAR_A 
VAR_SAR 
VAR_DAR 
VAR_HSUB 
VAR_VSUB 
VAR_OHSUB 
VAR_OVSUB 
VARS_NB 
VAR_X 
VAR_Y 
VAR_W 
VAR_H 
VAR_TIME 
VAR_SPEED 
VAR_TEMPO 
VAR_ORDER 
VAR_PATTERN 
VAR_ROW 
VAR_VARS_NB 

Definition at line 55 of file af_dynaudnorm.c.

Function Documentation

◆ AVFILTER_DEFINE_CLASS()

AVFILTER_DEFINE_CLASS ( dynaudnorm  )

◆ init()

static av_cold int init ( AVFilterContext ctx)
static

Definition at line 161 of file af_dynaudnorm.c.

◆ frame_size()

static int frame_size ( int  sample_rate,
int  frame_len_msec 
)
inlinestatic

Definition at line 173 of file af_dynaudnorm.c.

Referenced by config_input(), and process_command().

◆ cqueue_create()

static cqueue* cqueue_create ( int  size,
int  max_size 
)
static

Definition at line 179 of file af_dynaudnorm.c.

Referenced by config_input(), create_exec_ctx(), and ff_vk_create_exec_ctx().

◆ cqueue_free()

static void cqueue_free ( cqueue q)
static

Definition at line 203 of file af_dynaudnorm.c.

Referenced by uninit().

◆ cqueue_size()

static int cqueue_size ( cqueue q)
static

Definition at line 210 of file af_dynaudnorm.c.

Referenced by gaussian_filter(), minimum_filter(), and update_gain_history().

◆ cqueue_empty()

static int cqueue_empty ( cqueue q)
static

◆ cqueue_enqueue()

static int cqueue_enqueue ( cqueue q,
double  element 
)
static

Definition at line 220 of file af_dynaudnorm.c.

Referenced by filter_frame(), and update_gain_history().

◆ cqueue_peek()

static double cqueue_peek ( cqueue q,
int  index 
)
static

Definition at line 230 of file af_dynaudnorm.c.

Referenced by flush(), gaussian_filter(), minimum_filter(), and update_gain_history().

◆ cqueue_dequeue()

static int cqueue_dequeue ( cqueue q,
double element 
)
static

Definition at line 236 of file af_dynaudnorm.c.

Referenced by amplify_channel(), and filter_frame().

◆ cqueue_pop()

static int cqueue_pop ( cqueue q)
static

Definition at line 247 of file af_dynaudnorm.c.

Referenced by cqueue_resize(), and update_gain_history().

◆ cqueue_resize()

static void cqueue_resize ( cqueue q,
int  new_size 
)
static

Definition at line 257 of file af_dynaudnorm.c.

Referenced by process_command().

◆ init_gaussian_filter()

static void init_gaussian_filter ( DynamicAudioNormalizerContext s)
static

Definition at line 279 of file af_dynaudnorm.c.

Referenced by config_input(), and process_command().

◆ uninit()

static av_cold void uninit ( AVFilterContext ctx)
static

Definition at line 305 of file af_dynaudnorm.c.

Referenced by config_input().

◆ config_input()

static int config_input ( AVFilterLink inlink)
static

Definition at line 343 of file af_dynaudnorm.c.

◆ fade()

static double fade ( double  prev,
double  next,
int  pos,
int  length 
)
inlinestatic

Definition at line 400 of file af_dynaudnorm.c.

Referenced by amplify_channel(), perform_compression(), and perform_dc_correction().

◆ pow_2()

static double pow_2 ( const double  value)
inlinestatic

Definition at line 408 of file af_dynaudnorm.c.

Referenced by compute_frame_rms(), and compute_frame_std_dev().

◆ bound()

static double bound ( const double  threshold,
const double  val 
)
inlinestatic

◆ find_peak_magnitude()

static double find_peak_magnitude ( AVFrame frame,
int  channel 
)
static

Definition at line 419 of file af_dynaudnorm.c.

Referenced by get_max_local_gain().

◆ compute_frame_rms()

static double compute_frame_rms ( AVFrame frame,
int  channel 
)
static

Definition at line 440 of file af_dynaudnorm.c.

Referenced by get_max_local_gain().

◆ get_max_local_gain()

static local_gain get_max_local_gain ( DynamicAudioNormalizerContext s,
AVFrame frame,
int  channel 
)
static

Definition at line 466 of file af_dynaudnorm.c.

Referenced by analyze_frame(), and update_gain_histories().

◆ minimum_filter()

static double minimum_filter ( cqueue q)
static

Definition at line 492 of file af_dynaudnorm.c.

Referenced by update_gain_history().

◆ gaussian_filter()

static double gaussian_filter ( DynamicAudioNormalizerContext s,
cqueue q,
cqueue tq 
)
static

Definition at line 503 of file af_dynaudnorm.c.

Referenced by update_gain_history().

◆ update_gain_history()

static void update_gain_history ( DynamicAudioNormalizerContext s,
int  channel,
local_gain  gain 
)
static

Definition at line 522 of file af_dynaudnorm.c.

Referenced by analyze_frame(), flush(), and update_gain_histories().

◆ update_gain_histories()

static int update_gain_histories ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 577 of file af_dynaudnorm.c.

Referenced by analyze_frame().

◆ update_value()

static double update_value ( double  new,
double  old,
double  aggressiveness 
)
inlinestatic

Definition at line 591 of file af_dynaudnorm.c.

Referenced by perform_compression(), and perform_dc_correction().

◆ bypass_channel()

static int bypass_channel ( DynamicAudioNormalizerContext s,
AVFrame frame,
int  ch 
)
inlinestatic

Definition at line 597 of file af_dynaudnorm.c.

Referenced by amplify_channel(), perform_compression(), and perform_dc_correction().

◆ perform_dc_correction()

static void perform_dc_correction ( DynamicAudioNormalizerContext s,
AVFrame frame 
)
static

Definition at line 604 of file af_dynaudnorm.c.

Referenced by analyze_frame().

◆ setup_compress_thresh()

static double setup_compress_thresh ( double  threshold)
static

Definition at line 627 of file af_dynaudnorm.c.

Referenced by perform_compression().

◆ compute_frame_std_dev()

static double compute_frame_std_dev ( DynamicAudioNormalizerContext s,
AVFrame frame,
int  channel 
)
static

Definition at line 649 of file af_dynaudnorm.c.

Referenced by perform_compression().

◆ perform_compression()

static void perform_compression ( DynamicAudioNormalizerContext s,
AVFrame frame 
)
static

Definition at line 675 of file af_dynaudnorm.c.

Referenced by analyze_frame().

◆ analyze_frame()

static int analyze_frame ( AVFilterContext ctx,
AVFilterLink outlink,
AVFrame **  frame 
)
static

Definition at line 725 of file af_dynaudnorm.c.

Referenced by filter_frame(), and update_gain_histories().

◆ amplify_channel()

static void amplify_channel ( DynamicAudioNormalizerContext s,
AVFrame in,
AVFrame frame,
int  enabled,
int  c 
)
static

Definition at line 797 of file af_dynaudnorm.c.

Referenced by amplify_channels().

◆ amplify_channels()

static int amplify_channels ( AVFilterContext ctx,
void *  arg,
int  jobnr,
int  nb_jobs 
)
static

Definition at line 818 of file af_dynaudnorm.c.

Referenced by filter_frame().

◆ filter_frame()

static int filter_frame ( AVFilterLink inlink,
AVFrame in 
)
static

Definition at line 835 of file af_dynaudnorm.c.

Referenced by activate(), and flush_buffer().

◆ flush_buffer()

static int flush_buffer ( DynamicAudioNormalizerContext s,
AVFilterLink inlink,
AVFilterLink outlink 
)
static

Definition at line 891 of file af_dynaudnorm.c.

Referenced by flush().

◆ flush()

static int flush ( AVFilterLink outlink)
static

Definition at line 914 of file af_dynaudnorm.c.

Referenced by activate().

◆ activate()

static int activate ( AVFilterContext ctx)
static

Definition at line 928 of file af_dynaudnorm.c.

◆ process_command()

static int process_command ( AVFilterContext ctx,
const char *  cmd,
const char *  args,
char *  res,
int  res_len,
int  flags 
)
static

Definition at line 980 of file af_dynaudnorm.c.

Variable Documentation

◆ var_names

const char* const var_names[]
static
Initial value:
= {
"ch",
"sn",
"nb_channels",
"t",
"sr",
"p",
}

Definition at line 45 of file af_dynaudnorm.c.

Referenced by config_input(), and process_command().

◆ dynaudnorm_options

const AVOption dynaudnorm_options[]
static
Initial value:
= {
{ "framelen", "set the frame length in msec", OFFSET(frame_len_msec), AV_OPT_TYPE_INT, {.i64 = 500}, 10, 8000, FLAGS },
{ "f", "set the frame length in msec", OFFSET(frame_len_msec), AV_OPT_TYPE_INT, {.i64 = 500}, 10, 8000, FLAGS },
{ "gausssize", "set the filter size", OFFSET(filter_size), AV_OPT_TYPE_INT, {.i64 = 31}, 3, 301, FLAGS },
{ "g", "set the filter size", OFFSET(filter_size), AV_OPT_TYPE_INT, {.i64 = 31}, 3, 301, FLAGS },
{ "peak", "set the peak value", OFFSET(peak_value), AV_OPT_TYPE_DOUBLE, {.dbl = 0.95}, 0.0, 1.0, FLAGS },
{ "p", "set the peak value", OFFSET(peak_value), AV_OPT_TYPE_DOUBLE, {.dbl = 0.95}, 0.0, 1.0, FLAGS },
{ "maxgain", "set the max amplification", OFFSET(max_amplification), AV_OPT_TYPE_DOUBLE, {.dbl = 10.0}, 1.0, 100.0, FLAGS },
{ "m", "set the max amplification", OFFSET(max_amplification), AV_OPT_TYPE_DOUBLE, {.dbl = 10.0}, 1.0, 100.0, FLAGS },
{ "targetrms", "set the target RMS", OFFSET(target_rms), AV_OPT_TYPE_DOUBLE, {.dbl = 0.0}, 0.0, 1.0, FLAGS },
{ "r", "set the target RMS", OFFSET(target_rms), AV_OPT_TYPE_DOUBLE, {.dbl = 0.0}, 0.0, 1.0, FLAGS },
{ "coupling", "set channel coupling", OFFSET(channels_coupled), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
{ "n", "set channel coupling", OFFSET(channels_coupled), AV_OPT_TYPE_BOOL, {.i64 = 1}, 0, 1, FLAGS },
{ "correctdc", "set DC correction", OFFSET(dc_correction), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS },
{ "c", "set DC correction", OFFSET(dc_correction), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS },
{ "altboundary", "set alternative boundary mode", OFFSET(alt_boundary_mode), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS },
{ "b", "set alternative boundary mode", OFFSET(alt_boundary_mode), AV_OPT_TYPE_BOOL, {.i64 = 0}, 0, 1, FLAGS },
{ "compress", "set the compress factor", OFFSET(compress_factor), AV_OPT_TYPE_DOUBLE, {.dbl = 0.0}, 0.0, 30.0, FLAGS },
{ "s", "set the compress factor", OFFSET(compress_factor), AV_OPT_TYPE_DOUBLE, {.dbl = 0.0}, 0.0, 30.0, FLAGS },
{ "threshold", "set the threshold value", OFFSET(threshold), AV_OPT_TYPE_DOUBLE, {.dbl = 0.0}, 0.0, 1.0, FLAGS },
{ "t", "set the threshold value", OFFSET(threshold), AV_OPT_TYPE_DOUBLE, {.dbl = 0.0}, 0.0, 1.0, FLAGS },
{ "channels", "set channels to filter", OFFSET(channels_to_filter),AV_OPT_TYPE_STRING, {.str="all"}, 0, 0, FLAGS },
{ "h", "set channels to filter", OFFSET(channels_to_filter),AV_OPT_TYPE_STRING, {.str="all"}, 0, 0, FLAGS },
{ "overlap", "set the frame overlap", OFFSET(overlap), AV_OPT_TYPE_DOUBLE, {.dbl=.0}, 0.0, 1.0, FLAGS },
{ "o", "set the frame overlap", OFFSET(overlap), AV_OPT_TYPE_DOUBLE, {.dbl=.0}, 0.0, 1.0, FLAGS },
{ "curve", "set the custom peak mapping curve",OFFSET(expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
{ "v", "set the custom peak mapping curve",OFFSET(expr_str), AV_OPT_TYPE_STRING, {.str=NULL}, .flags = FLAGS },
{ NULL }
}

Definition at line 129 of file af_dynaudnorm.c.

◆ avfilter_af_dynaudnorm_inputs

const AVFilterPad avfilter_af_dynaudnorm_inputs[]
static
Initial value:
= {
{
.name = "default",
.config_props = config_input,
},
}

Definition at line 1014 of file af_dynaudnorm.c.

◆ avfilter_af_dynaudnorm_outputs

const AVFilterPad avfilter_af_dynaudnorm_outputs[]
static
Initial value:
= {
{
.name = "default",
},
}

Definition at line 1022 of file af_dynaudnorm.c.

◆ ff_af_dynaudnorm

const AVFilter ff_af_dynaudnorm
Initial value:

Definition at line 1029 of file af_dynaudnorm.c.

config_input
static int config_input(AVFilterLink *inlink)
Definition: af_dynaudnorm.c:343
OFFSET
#define OFFSET(x)
Definition: af_dynaudnorm.c:126
FILTER_SINGLE_SAMPLEFMT
#define FILTER_SINGLE_SAMPLEFMT(sample_fmt_)
Definition: internal.h:183
init
static av_cold int init(AVFilterContext *ctx)
Definition: af_dynaudnorm.c:161
avfilter_af_dynaudnorm_inputs
static const AVFilterPad avfilter_af_dynaudnorm_inputs[]
Definition: af_dynaudnorm.c:1014
DynamicAudioNormalizerContext
Definition: af_dynaudnorm.c:77
activate
static int activate(AVFilterContext *ctx)
Definition: af_dynaudnorm.c:928
avfilter_af_dynaudnorm_outputs
static const AVFilterPad avfilter_af_dynaudnorm_outputs[]
Definition: af_dynaudnorm.c:1022
AV_OPT_TYPE_DOUBLE
@ AV_OPT_TYPE_DOUBLE
Definition: opt.h:227
AVMEDIA_TYPE_AUDIO
@ AVMEDIA_TYPE_AUDIO
Definition: avutil.h:202
uninit
static av_cold void uninit(AVFilterContext *ctx)
Definition: af_dynaudnorm.c:305
FILTER_INPUTS
#define FILTER_INPUTS(array)
Definition: internal.h:190
FLAGS
#define FLAGS
Definition: af_dynaudnorm.c:127
NULL
#define NULL
Definition: coverity.c:32
NULL_IF_CONFIG_SMALL
#define NULL_IF_CONFIG_SMALL(x)
Return NULL if CONFIG_SMALL is true, otherwise the argument without modification.
Definition: internal.h:115
process_command
static int process_command(AVFilterContext *ctx, const char *cmd, const char *args, char *res, int res_len, int flags)
Definition: af_dynaudnorm.c:980
AV_OPT_TYPE_INT
@ AV_OPT_TYPE_INT
Definition: opt.h:225
AV_SAMPLE_FMT_DBLP
@ AV_SAMPLE_FMT_DBLP
double, planar
Definition: samplefmt.h:67
AVFILTER_FLAG_SLICE_THREADS
#define AVFILTER_FLAG_SLICE_THREADS
The filter supports multithreading by splitting frames into multiple parts and processing them concur...
Definition: avfilter.h:127
AV_OPT_TYPE_BOOL
@ AV_OPT_TYPE_BOOL
Definition: opt.h:244
FILTER_OUTPUTS
#define FILTER_OUTPUTS(array)
Definition: internal.h:191
AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
#define AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL
Same as AVFILTER_FLAG_SUPPORT_TIMELINE_GENERIC, except that the filter will have its filter_frame() c...
Definition: avfilter.h:160
AV_OPT_TYPE_STRING
@ AV_OPT_TYPE_STRING
Definition: opt.h:229