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_F, 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_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,   VAR_CW, VAR_CH, VAR_CX, VAR_CY,   VAR_A, VAR_DAR, VAR_SAR, 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 cqueue *	cqueue_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

#define FLAGS   AV_OPT_FLAG_AUDIO_PARAM|AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_RUNTIME_PARAM

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_F
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_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
VAR_CW
VAR_CH
VAR_CX
VAR_CY
VAR_A
VAR_DAR
VAR_SAR
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

Definition at line 215 of file af_dynaudnorm.c.

Referenced by cqueue_dequeue(), cqueue_pop(), filter_frame(), flush(), perform_compression(), perform_dc_correction(), and update_gain_history().

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

Definition at line 413 of file af_dynaudnorm.c.

Referenced by add_icc_profile_size(), get_max_local_gain(), mp_decode_layer1(), mp_decode_layer2(), perform_compression(), and setup_compress_thresh().

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",            
    NULL
}

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",
        .type           = AVMEDIA_TYPE_AUDIO,
        .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",
        .type          = AVMEDIA_TYPE_AUDIO,
    },
}

Definition at line 1022 of file af_dynaudnorm.c.

ff_af_dynaudnorm

const AVFilter ff_af_dynaudnorm

Initial value:

= {
    .name          = "dynaudnorm",
    .description   = NULL_IF_CONFIG_SMALL("Dynamic Audio Normalizer."),
    .priv_size     = sizeof(DynamicAudioNormalizerContext),
    .init          = init,
    .uninit        = uninit,
    .activate      = activate,
    FILTER_INPUTS(avfilter_af_dynaudnorm_inputs),
    FILTER_OUTPUTS(avfilter_af_dynaudnorm_outputs),
    FILTER_SINGLE_SAMPLEFMT(AV_SAMPLE_FMT_DBLP),
    .priv_class    = &dynaudnorm_class,
    .flags         = AVFILTER_FLAG_SUPPORT_TIMELINE_INTERNAL |
                     AVFILTER_FLAG_SLICE_THREADS,
    .process_command = process_command,
}

Definition at line 1029 of file af_dynaudnorm.c.