af_ashowinfo.c File Reference

filter for showing textual audio frame information More...

#include <inttypes.h>
#include "libavutil/adler32.h"
#include "libavutil/attributes.h"
#include "libavutil/channel_layout.h"
#include "libavutil/downmix_info.h"
#include "libavutil/iamf.h"
#include "libavutil/mem.h"
#include "libavutil/replaygain.h"
#include "libavutil/timestamp.h"
#include "libavutil/samplefmt.h"
#include "libavcodec/defs.h"
#include "audio.h"
#include "avfilter.h"
#include "filters.h"

Go to the source code of this file.

Data Structures
struct	AShowInfoContext

Functions
static av_cold void	uninit (AVFilterContext *ctx)
static void	dump_matrixenc (AVFilterContext *ctx, AVFrameSideData *sd)
static void	dump_downmix (AVFilterContext *ctx, AVFrameSideData *sd)
static void	dump_downmix_matrix (AVFilterContext *ctx, AVFrameSideData *sd, AVChannelLayout *ch_layout)
static void	print_gain (AVFilterContext *ctx, const char *str, int32_t gain)
static void	print_peak (AVFilterContext *ctx, const char *str, uint32_t peak)
static void	dump_replaygain (AVFilterContext *ctx, AVFrameSideData *sd)
static void	dump_audio_service_type (AVFilterContext *ctx, AVFrameSideData *sd)
static void	dump_iamf_parameter_definition (AVFilterContext *ctx, const AVFrameSideData *sd)
static void	dump_unknown (AVFilterContext *ctx, AVFrameSideData *sd)
static int	filter_frame (AVFilterLink *inlink, AVFrame *buf)

Variables
static const int	downmix_type_map [AV_DOWNMIX_TYPE_NB]
static const AVFilterPad	inputs []
const FFFilter	ff_af_ashowinfo

Detailed Description

filter for showing textual audio frame information

Definition in file af_ashowinfo.c.

Function Documentation

uninit()

static av_cold void uninit ( AVFilterContext * ctx )

static

Definition at line 51 of file af_ashowinfo.c.

dump_matrixenc()

static void dump_matrixenc ( AVFilterContext * ctx, AVFrameSideData * sd )

static

Definition at line 57 of file af_ashowinfo.c.

Referenced by filter_frame().

dump_downmix()

static void dump_downmix ( AVFilterContext * ctx, AVFrameSideData * sd )

static

Definition at line 81 of file af_ashowinfo.c.

Referenced by filter_frame().

dump_downmix_matrix()

static void dump_downmix_matrix ( AVFilterContext * ctx, AVFrameSideData * sd, AVChannelLayout * ch_layout )

static

Definition at line 115 of file af_ashowinfo.c.

Referenced by filter_frame().

print_gain()

static void print_gain ( AVFilterContext * ctx, const char * str, int32_t gain )

static

Definition at line 144 of file af_ashowinfo.c.

Referenced by dump_replaygain().

print_peak()

static void print_peak ( AVFilterContext * ctx, const char * str, uint32_t peak )

static

Definition at line 154 of file af_ashowinfo.c.

Referenced by dump_replaygain().

dump_replaygain()

static void dump_replaygain ( AVFilterContext * ctx, AVFrameSideData * sd )

static

Definition at line 164 of file af_ashowinfo.c.

Referenced by filter_frame().

dump_audio_service_type()

static void dump_audio_service_type ( AVFilterContext * ctx, AVFrameSideData * sd )

static

Definition at line 181 of file af_ashowinfo.c.

Referenced by filter_frame().

dump_iamf_parameter_definition()

static void dump_iamf_parameter_definition ( AVFilterContext * ctx, const AVFrameSideData * sd )

static

Definition at line 205 of file af_ashowinfo.c.

Referenced by filter_frame().

dump_unknown()

static void dump_unknown ( AVFilterContext * ctx, AVFrameSideData * sd )

static

Definition at line 284 of file af_ashowinfo.c.

Referenced by filter_frame().

filter_frame()

static int filter_frame ( AVFilterLink * inlink, AVFrame * buf )

static

Definition at line 290 of file af_ashowinfo.c.

Variable Documentation

downmix_type_map

const int downmix_type_map[AV_DOWNMIX_TYPE_NB]

static

Initial value:

= {
    [AV_DOWNMIX_TYPE_UNKNOWN] = 0,
    [AV_DOWNMIX_TYPE_LORO]    = 2,
    [AV_DOWNMIX_TYPE_LTRT]    = 2,
    [AV_DOWNMIX_TYPE_DPLII]   = 2,
}

Definition at line 108 of file af_ashowinfo.c.

Referenced by dump_downmix_matrix().

inputs

const AVFilterPad inputs[]

static

Initial value:

= {
    {
        .name         = "default",
        .type         = AVMEDIA_TYPE_AUDIO,
        .filter_frame = filter_frame,
    },
}

Definition at line 358 of file af_ashowinfo.c.

ff_af_ashowinfo

const FFFilter ff_af_ashowinfo

Initial value:

= {
    .p.name        = "ashowinfo",
    .p.description = NULL_IF_CONFIG_SMALL("Show textual information for each audio frame."),
    .p.flags       = AVFILTER_FLAG_METADATA_ONLY,
    .priv_size   = sizeof(AShowInfoContext),
    .uninit      = uninit,
    FILTER_INPUTS(inputs),
    FILTER_OUTPUTS(ff_audio_default_filterpad),
}

Definition at line 366 of file af_ashowinfo.c.